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"content": "\u003cp>There’s a mysterious force that makes up about two-thirds of the universe. And it has nothing to do with Star Wars.\u003c/p>\n\u003cp>Scientists call it dark energy, and it is believed to be causing galaxies to move away from each other faster and faster. Now, researchers who have been trying to figure it out for more than 20 years by studying supernovae – stars that exploded billions of years ago – are hoping to send a telescope into space, where they’ll be able to get a better look.\u003c/p>\n\u003cp>“You can see hundreds of times more sky at a time,” said Saul Perlmutter, a professor of physics at the University of California, Berkeley. “And it’s also designed for just the wave length range, just the colors, where we need to study the supernovae and the other galaxies in order to study dark energy.”\u003c/p>\n\u003cp>The new NASA telescope is known as \u003ca href=\"http://wfirst.gsfc.nasa.gov/\">WFIRST\u003c/a>, which stands for wide-field infrared survey telescope. If Congress approves initial development funds of $50 million to $100 million by the end of the year, WFIRST could launch sometime between 2022 and 2025.\u003c/p>\n\u003cp>A telescope like it has been in the works for more than 15 years, at one point developed by a Joint Dark Energy Mission made up of NASA and the Department of Energy. Now the project is back in NASA’s hands.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>Despite the project’s bumpy history, Perlmutter is optimistic.\u003c/p>\n\u003cp>“At this point things are sounding good,” he said.\u003c/p>\n\u003cp>In 1929, astronomer Edwin Hubble discovered that the universe is expanding, with galaxies moving away from each other. Before Hubble’s discovery, even Albert Einstein believed that the universe was static.\u003c/p>\n\u003cp>Eighty years later, in 2011, Perlmutter, who also is an astrophysicist at Lawrence Berkeley National Laboratory, shared the Nobel Prize in physics for his contributions to the discovery that the expansion of the universe started to accelerate seven billion years ago.\u003c/p>\n\u003cp>“Just imagine that you are living here on a galaxy, and there’s galaxies forever going in all directions, nothing but galaxies, no end,” said Perlmutter gesturing with his arms. “And the only thing I mean when I’m saying that the universe is expanding is that we’re sort of pumping extra space between the galaxies. And when we say it’s accelerating, we just mean that that extra pumping is happening faster and faster and the distances are growing bigger and bigger more and more quickly.”\u003c/p>\n\u003cp>To figure out that the expansion was accelerating, Perlmutter and his team used the light from supernovae – stars that exploded billions of years ago – to plot out the history of the universe.\u003c/p>\n\u003cp>A particular kind of supernova stars, called Type 1a, explode in a very similar way every time, brightening like fireworks and then fading away. And they reach the same peak brightness every time.\u003c/p>\n\u003cp>Their predictability makes these exploding stars what researchers call “standard candles.” Their initial brightness is constant and grows fainter with distance. Since researchers know light always travels at 186,000 miles per second, they’re able to calculate how long ago these supernovae exploded.\u003c/p>\n\u003cp>When a supernova explodes, the light starts spreading out in all directions, much like the ripples on the water spread out when you drop a pebble into a lake.\u003c/p>\n\u003cp>The supernovae Perlmutter studies exploded billions of years ago. As the light from their explosions was traveling toward our galaxy, our solar system had time to develop, dinosaurs had a chance to come and go, and humans made their grand entrance and had time to build telescopes.\u003c/p>\n\u003cfigure id=\"attachment_99168\" class=\"wp-caption alignleft\" style=\"max-width: 800px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/Saul-Perlmutter.jpg\">\u003cimg class=\"size-medium wp-image-99168\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/Saul-Perlmutter-800x450.jpg\" alt='Saul Perlmutter, of the University of California, Berkeley, studies dark energy, the mysterious \"something\" that is making galaxies move away from each other faster and faster. ' width=\"800\" height=\"450\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/11/Saul-Perlmutter-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Saul-Perlmutter-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Saul-Perlmutter-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Saul-Perlmutter-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Saul-Perlmutter-960x540.jpg 960w\" sizes=\"(max-width: 800px) 100vw, 800px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">Saul Perlmutter, of the University of California, Berkeley, studies dark energy, the mysterious \"something\" that is making galaxies move away from each other faster and faster. \u003ccite>(Jenny Oh/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>“While the light is traveling to us through the universe, the universe is expanding. And everything in the universe that’s not nailed down expands with the universe,” said Perlmutter. “That includes the very wavelengths of the photons of light that are traveling to us from the supernova.”\u003c/p>\n\u003cp>If the light is moving away from the observer, it appears red, in a phenomenon known as “redshift.”\u003c/p>\n\u003cp>“Now with these two ingredients – the brightness of the supernova and how much the light has been shifted towards the red in its appearance – you now can just read off the history of the expansion of the universe,” said Perlmutter, “because the brightness tells you how far back in time any given supernova event occurred, and the red shift tells us how much the universe has expanded since that time. And now we just do this for five, ten, 20, 40 supernovae at different times back in history and they, one after another, tell us for each time in history how much the universe has stretched since that time.”\u003c/p>\n\u003cp>With WFIRST, astronomers plan to study supernovae that are farther away.\u003c/p>\n\u003cp>The telescope, which would be launched to space on a satellite, would also include technology to study dark energy in other ways.\u003c/p>\n\u003cp>One new technique called Baryon Acoustic Oscillations, or BAO for short, allows scientists to refine their history of the universe by comparing the average distance between galaxies at different points in time with the distances between the hot and cold spots just after the Big Bang. The hotter spots were denser and gave rise to more galaxies.\u003c/p>\n\u003cp>If Congress were to move forward with WFIRST, it would be an exciting step for scientists trying to figure out what dark energy might be, said Perlmutter.\u003c/p>\n\u003cp>\u003c/p>\n\u003cp>“You really would be able to probe into the history of the expansion of the universe in a way that we’ve never done before,” he said. “This would be the big chance of finding out what dark energy is in our lifetime.”\u003c/p>\n\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>There’s a mysterious force that makes up about two-thirds of the universe. And it has nothing to do with Star Wars.\u003c/p>\n\u003cp>Scientists call it dark energy, and it is believed to be causing galaxies to move away from each other faster and faster. Now, researchers who have been trying to figure it out for more than 20 years by studying supernovae – stars that exploded billions of years ago – are hoping to send a telescope into space, where they’ll be able to get a better look.\u003c/p>\n\u003cp>“You can see hundreds of times more sky at a time,” said Saul Perlmutter, a professor of physics at the University of California, Berkeley. “And it’s also designed for just the wave length range, just the colors, where we need to study the supernovae and the other galaxies in order to study dark energy.”\u003c/p>\n\u003cp>The new NASA telescope is known as \u003ca href=\"http://wfirst.gsfc.nasa.gov/\">WFIRST\u003c/a>, which stands for wide-field infrared survey telescope. If Congress approves initial development funds of $50 million to $100 million by the end of the year, WFIRST could launch sometime between 2022 and 2025.\u003c/p>\n\u003cp>A telescope like it has been in the works for more than 15 years, at one point developed by a Joint Dark Energy Mission made up of NASA and the Department of Energy. Now the project is back in NASA’s hands.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>Despite the project’s bumpy history, Perlmutter is optimistic.\u003c/p>\n\u003cp>“At this point things are sounding good,” he said.\u003c/p>\n\u003cp>In 1929, astronomer Edwin Hubble discovered that the universe is expanding, with galaxies moving away from each other. Before Hubble’s discovery, even Albert Einstein believed that the universe was static.\u003c/p>\n\u003cp>Eighty years later, in 2011, Perlmutter, who also is an astrophysicist at Lawrence Berkeley National Laboratory, shared the Nobel Prize in physics for his contributions to the discovery that the expansion of the universe started to accelerate seven billion years ago.\u003c/p>\n\u003cp>“Just imagine that you are living here on a galaxy, and there’s galaxies forever going in all directions, nothing but galaxies, no end,” said Perlmutter gesturing with his arms. “And the only thing I mean when I’m saying that the universe is expanding is that we’re sort of pumping extra space between the galaxies. And when we say it’s accelerating, we just mean that that extra pumping is happening faster and faster and the distances are growing bigger and bigger more and more quickly.”\u003c/p>\n\u003cp>To figure out that the expansion was accelerating, Perlmutter and his team used the light from supernovae – stars that exploded billions of years ago – to plot out the history of the universe.\u003c/p>\n\u003cp>A particular kind of supernova stars, called Type 1a, explode in a very similar way every time, brightening like fireworks and then fading away. And they reach the same peak brightness every time.\u003c/p>\n\u003cp>Their predictability makes these exploding stars what researchers call “standard candles.” Their initial brightness is constant and grows fainter with distance. Since researchers know light always travels at 186,000 miles per second, they’re able to calculate how long ago these supernovae exploded.\u003c/p>\n\u003cp>When a supernova explodes, the light starts spreading out in all directions, much like the ripples on the water spread out when you drop a pebble into a lake.\u003c/p>\n\u003cp>The supernovae Perlmutter studies exploded billions of years ago. As the light from their explosions was traveling toward our galaxy, our solar system had time to develop, dinosaurs had a chance to come and go, and humans made their grand entrance and had time to build telescopes.\u003c/p>\n\u003cfigure id=\"attachment_99168\" class=\"wp-caption alignleft\" style=\"max-width: 800px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/Saul-Perlmutter.jpg\">\u003cimg class=\"size-medium wp-image-99168\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/Saul-Perlmutter-800x450.jpg\" alt='Saul Perlmutter, of the University of California, Berkeley, studies dark energy, the mysterious \"something\" that is making galaxies move away from each other faster and faster. ' width=\"800\" height=\"450\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/11/Saul-Perlmutter-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Saul-Perlmutter-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Saul-Perlmutter-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Saul-Perlmutter-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Saul-Perlmutter-960x540.jpg 960w\" sizes=\"(max-width: 800px) 100vw, 800px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">Saul Perlmutter, of the University of California, Berkeley, studies dark energy, the mysterious \"something\" that is making galaxies move away from each other faster and faster. \u003ccite>(Jenny Oh/KQED)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>“While the light is traveling to us through the universe, the universe is expanding. And everything in the universe that’s not nailed down expands with the universe,” said Perlmutter. “That includes the very wavelengths of the photons of light that are traveling to us from the supernova.”\u003c/p>\n\u003cp>If the light is moving away from the observer, it appears red, in a phenomenon known as “redshift.”\u003c/p>\n\u003cp>“Now with these two ingredients – the brightness of the supernova and how much the light has been shifted towards the red in its appearance – you now can just read off the history of the expansion of the universe,” said Perlmutter, “because the brightness tells you how far back in time any given supernova event occurred, and the red shift tells us how much the universe has expanded since that time. And now we just do this for five, ten, 20, 40 supernovae at different times back in history and they, one after another, tell us for each time in history how much the universe has stretched since that time.”\u003c/p>\n\u003cp>With WFIRST, astronomers plan to study supernovae that are farther away.\u003c/p>\n\u003cp>The telescope, which would be launched to space on a satellite, would also include technology to study dark energy in other ways.\u003c/p>\n\u003cp>One new technique called Baryon Acoustic Oscillations, or BAO for short, allows scientists to refine their history of the universe by comparing the average distance between galaxies at different points in time with the distances between the hot and cold spots just after the Big Bang. The hotter spots were denser and gave rise to more galaxies.\u003c/p>\n\u003cp>If Congress were to move forward with WFIRST, it would be an exciting step for scientists trying to figure out what dark energy might be, said Perlmutter.\u003c/p>\n\u003cp>\u003c/p>\n\u003cp>“You really would be able to probe into the history of the expansion of the universe in a way that we’ve never done before,” he said. “This would be the big chance of finding out what dark energy is in our lifetime.”\u003c/p>\n\n\u003c/div>\u003c/p>",
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"content": "\u003cp>More is more – nowhere is that truer than at the world’s most powerful atom smasher, the \u003ca href=\"http://public.web.cern.ch/public/en/lhc/lhc-en.html\">Large Hadron Collider\u003c/a> in Switzerland, where scientists last week concluded a six-month series of experiments where they forced infinitesimally tiny particles to smash against each other at double the energy level ever recorded.\u003c/p>\n\u003cp>The higher energy level – 13 trillion electronvolts – will increase physicists’ chances of answering some of the most daunting questions in science. Through their work, researchers hope to find out if there are extra dimensions in the universe other than the three we’re familiar with. They also hope to elucidate what dark matter might be – that’s the “stuff” that makes up about a quarter of the universe. \u003c/p>\n\u003cp>And there might even be surprises along the way, said physicist Michael Barnett, of the Lawrence Berkeley National Laboratory. \u003c/p>\n\u003cp>“We don’t know what we don’t know,” said Barnett, who recently spent a week at the Large Hadron Collider, in Geneva. “All we do is collide protons.” \u003c/p>\n\u003cfigure id=\"attachment_97327\" class=\"wp-caption alignright\" style=\"max-width: 800px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/LHC.jpg\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/LHC-800x450.jpg\" alt=\"Researchers at the Large Hadron Collider in Switzerland celebrate in June after the powerful atom smasher started a series of experiments in which particles collided at double the energy level ever recorded.\" width=\"800\" height=\"450\" class=\"size-medium wp-image-97327\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/11/LHC-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LHC-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LHC-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LHC-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LHC-960x540.jpg 960w\" sizes=\"(max-width: 800px) 100vw, 800px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">Researchers at the Large Hadron Collider in Switzerland celebrate in June after the powerful atom smasher started a series of experiments in which particles collided at double the energy level ever recorded. \u003ccite>(CERN)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>The collider smashes tiny constituents of matter called protons against other protons inside a 17-mile ring so long that it straddles the border of Switzerland and France. \u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>The giant accelerator’s first run started in 2010 and culminated two years later with the discovery of the Higgs boson, also known as the “God particle” because it has the god-like ability to confer mass to other particles. Scientists like Barnett hope that it will take two more years to find clues about extra dimensions and dark matter. \u003c/p>\n\u003cp>The process involves looking for phenomena that can only be created inside a particle accelerator, such as microscopic black holes that disappear in less than a millionth of a second, leaving only traces to be pored over by scientists. \u003c/p>\n\u003cp>“It’s like fireworks,” said Barnett, “with tails that become more and more elaborate.” \u003c/p>\n\u003cp>Many of the technologies that made the Large Hadron Collider possible were pioneered in the Bay Area. \u003c/p>\n\u003cp>Physicists on the \u003ca href=\"http://www.aip.org/history/lawrence/index.htm\">University of California, Berkeley, campus in the 1930s\u003c/a> and at the \u003ca href=\"http://www.slac.stanford.edu/\">Stanford Linear Accelerator Center\u003c/a>, in Menlo Park, in the 1970s, created precursors to the Large Hadron Collider that led to key discoveries about the tiny constituents of the atom – from the nucleus all the way down to quarks. \u003c/p>\n\u003cfigure id=\"attachment_97325\" class=\"wp-caption alignleft\" style=\"max-width: 800px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/Cyclotron.jpg\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/Cyclotron-800x450.jpg\" alt=\"The first cyclotron, a particle accelerator created in 1930 at the University of California, Berkeley. \" width=\"800\" height=\"450\" class=\"size-medium wp-image-97325\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/11/Cyclotron-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Cyclotron-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Cyclotron-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Cyclotron-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Cyclotron-960x540.jpg 960w\" sizes=\"(max-width: 800px) 100vw, 800px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">The first cyclotron, a particle accelerator created in 1930 at the University of California, Berkeley. \u003ccite>(Lawrence Berkeley National Laboratory Photo Archives)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>In its first iteration, the \u003ca href=\"http://www.aip.org/history/lawrence/epa.htm\">cyclotron\u003c/a> created by UC Berkeley physicist Ernest Lawrence in 1930 \u003ca href=\"http://bancroft.berkeley.edu/Exhibits/physics/bigscience02.html\">fit in the palm of his hand\u003c/a>. It was a breakthrough because, without requiring much energy, it could produce very energetic particles in a small space. This allowed physicists to readily investigate the atom’s nucleus by creating elements with large nuclei. \u003c/p>\n\u003cp>The resulting new field of nuclear science has a complicated legacy, said Lawrence Berkeley Lab nuclear physicist Larry Phair. Nuclear physics were used to \u003ca href=\"http://www.aip.org/history/lawrence/bomb.htm\">build the atomic bomb\u003c/a>, as well as to create the \u003ca href=\"http://news.stanford.edu/news/2007/april18/med-accelerator-041807.html\">medical accelerators\u003c/a> that are now commonly used to fight cancer. \u003c/p>\n\u003cp>Subsequent versions of the cyclotron were so big that they were housed in their own buildings. The Lawrence Berkeley Lab started out as the facility that Ernest Lawrence built above the UC Berkeley campus to house his ever-bigger cyclotrons. \u003c/p>\n\u003cfigure id=\"attachment_97326\" class=\"wp-caption alignright\" style=\"max-width: 800px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/LINAC.jpg\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/LINAC-800x450.jpg\" alt=\"When it opened in Menlo Park in 1966 the Stanford Linear Accelerator Center had the longest particle accelerator in the world. \" width=\"800\" height=\"450\" class=\"size-medium wp-image-97326\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/11/LINAC-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LINAC-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LINAC-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LINAC-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LINAC-960x540.jpg 960w\" sizes=\"(max-width: 800px) 100vw, 800px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">When it opened in Menlo Park in 1966 the Stanford Linear Accelerator Center had the longest particle accelerator in the world. \u003ccite>(SLAC National Accelerator Laboratory Photo Archives)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>When it opened in Menlo Park in 1966, the Stanford Linear Accelerator Center, now the \u003ca href=\"http://www.slac.stanford.edu/\">SLAC National Accelerator Laboratory\u003c/a>, was the longest particle accelerator in the world. The linear accelerator sent electron beams traveling down a two-mile row of microwave-oven-like devices and smashed them against a stationary target. Physicists used these accelerated electrons to investigate what was inside the protons and neutrons, and in 1968 they found that they were made up of minuscule constituents they called quarks. \u003c/p>\n\u003cp>A few years later, SLAC physicist Burton Richter built a collider – a type of particle accelerator in which particle beams are smashed against each other to reach high energy levels. \u003c/p>\n\u003cp>“All the energy of those two beams could get transformed into new kinds of particles,” said Richter.\u003c/p>\n\u003cp>The so-called SPEAR collider that Richter built led him and his team to discover a more massive quark called the charm quark, and won him the Nobel Prize in physics. \u003c/p>\n\u003cp>“It was a revolutionary idea, to collide two beams against each other,” said Barnett. The SPEAR collider became a precursor to the Large Hadron Collider.\u003c/p>\n\u003cp>Today, dozens of physicists and graduate students at the Lawrence Berkeley Lab and SLAC are working at the Large Hadron Collider, making regular trips to Geneva and crunching data back home in their labs.\u003c/p>\n\u003cp>The particle accelerators at both facilities have been given new uses. \u003c/p>\n\u003cp>The cyclotron at the Lawrence Berkeley Lab is used to test computer chips that go into satellites, by exposing them to high-radiation conditions similar to those they’ll encounter in space. \u003c/p>\n\u003cp>And the X-rays emitted by accelerated particles at SLAC are being used to study the \u003ca href=\"http://ww2.kqed.org/science/2015/07/07/what-happens-when-you-zap-coral-with-the-worlds-most-powerful-x-ray-laser/\">impact of climate change on coral reefs\u003c/a>.\u003c/p>\n\u003cp>For Richter, the Large Hadron Collider offers the tantalizing possibility of answering fundamental questions about the universe, one by one. \u003c/p>\n\u003cp>“The blackboard is covered with Post-it notes now,” said Richter. \u003c/p>\n\u003cp>\u003c/p>\n\u003cp>He looks forward to “going down the line and removing them all.”\u003c/p>\n\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>More is more – nowhere is that truer than at the world’s most powerful atom smasher, the \u003ca href=\"http://public.web.cern.ch/public/en/lhc/lhc-en.html\">Large Hadron Collider\u003c/a> in Switzerland, where scientists last week concluded a six-month series of experiments where they forced infinitesimally tiny particles to smash against each other at double the energy level ever recorded.\u003c/p>\n\u003cp>The higher energy level – 13 trillion electronvolts – will increase physicists’ chances of answering some of the most daunting questions in science. Through their work, researchers hope to find out if there are extra dimensions in the universe other than the three we’re familiar with. They also hope to elucidate what dark matter might be – that’s the “stuff” that makes up about a quarter of the universe. \u003c/p>\n\u003cp>And there might even be surprises along the way, said physicist Michael Barnett, of the Lawrence Berkeley National Laboratory. \u003c/p>\n\u003cp>“We don’t know what we don’t know,” said Barnett, who recently spent a week at the Large Hadron Collider, in Geneva. “All we do is collide protons.” \u003c/p>\n\u003cfigure id=\"attachment_97327\" class=\"wp-caption alignright\" style=\"max-width: 800px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/LHC.jpg\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/LHC-800x450.jpg\" alt=\"Researchers at the Large Hadron Collider in Switzerland celebrate in June after the powerful atom smasher started a series of experiments in which particles collided at double the energy level ever recorded.\" width=\"800\" height=\"450\" class=\"size-medium wp-image-97327\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/11/LHC-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LHC-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LHC-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LHC-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LHC-960x540.jpg 960w\" sizes=\"(max-width: 800px) 100vw, 800px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">Researchers at the Large Hadron Collider in Switzerland celebrate in June after the powerful atom smasher started a series of experiments in which particles collided at double the energy level ever recorded. \u003ccite>(CERN)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>The collider smashes tiny constituents of matter called protons against other protons inside a 17-mile ring so long that it straddles the border of Switzerland and France. \u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>The giant accelerator’s first run started in 2010 and culminated two years later with the discovery of the Higgs boson, also known as the “God particle” because it has the god-like ability to confer mass to other particles. Scientists like Barnett hope that it will take two more years to find clues about extra dimensions and dark matter. \u003c/p>\n\u003cp>The process involves looking for phenomena that can only be created inside a particle accelerator, such as microscopic black holes that disappear in less than a millionth of a second, leaving only traces to be pored over by scientists. \u003c/p>\n\u003cp>“It’s like fireworks,” said Barnett, “with tails that become more and more elaborate.” \u003c/p>\n\u003cp>Many of the technologies that made the Large Hadron Collider possible were pioneered in the Bay Area. \u003c/p>\n\u003cp>Physicists on the \u003ca href=\"http://www.aip.org/history/lawrence/index.htm\">University of California, Berkeley, campus in the 1930s\u003c/a> and at the \u003ca href=\"http://www.slac.stanford.edu/\">Stanford Linear Accelerator Center\u003c/a>, in Menlo Park, in the 1970s, created precursors to the Large Hadron Collider that led to key discoveries about the tiny constituents of the atom – from the nucleus all the way down to quarks. \u003c/p>\n\u003cfigure id=\"attachment_97325\" class=\"wp-caption alignleft\" style=\"max-width: 800px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/Cyclotron.jpg\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/Cyclotron-800x450.jpg\" alt=\"The first cyclotron, a particle accelerator created in 1930 at the University of California, Berkeley. \" width=\"800\" height=\"450\" class=\"size-medium wp-image-97325\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/11/Cyclotron-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Cyclotron-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Cyclotron-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Cyclotron-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/Cyclotron-960x540.jpg 960w\" sizes=\"(max-width: 800px) 100vw, 800px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">The first cyclotron, a particle accelerator created in 1930 at the University of California, Berkeley. \u003ccite>(Lawrence Berkeley National Laboratory Photo Archives)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>In its first iteration, the \u003ca href=\"http://www.aip.org/history/lawrence/epa.htm\">cyclotron\u003c/a> created by UC Berkeley physicist Ernest Lawrence in 1930 \u003ca href=\"http://bancroft.berkeley.edu/Exhibits/physics/bigscience02.html\">fit in the palm of his hand\u003c/a>. It was a breakthrough because, without requiring much energy, it could produce very energetic particles in a small space. This allowed physicists to readily investigate the atom’s nucleus by creating elements with large nuclei. \u003c/p>\n\u003cp>The resulting new field of nuclear science has a complicated legacy, said Lawrence Berkeley Lab nuclear physicist Larry Phair. Nuclear physics were used to \u003ca href=\"http://www.aip.org/history/lawrence/bomb.htm\">build the atomic bomb\u003c/a>, as well as to create the \u003ca href=\"http://news.stanford.edu/news/2007/april18/med-accelerator-041807.html\">medical accelerators\u003c/a> that are now commonly used to fight cancer. \u003c/p>\n\u003cp>Subsequent versions of the cyclotron were so big that they were housed in their own buildings. The Lawrence Berkeley Lab started out as the facility that Ernest Lawrence built above the UC Berkeley campus to house his ever-bigger cyclotrons. \u003c/p>\n\u003cfigure id=\"attachment_97326\" class=\"wp-caption alignright\" style=\"max-width: 800px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/LINAC.jpg\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/11/LINAC-800x450.jpg\" alt=\"When it opened in Menlo Park in 1966 the Stanford Linear Accelerator Center had the longest particle accelerator in the world. \" width=\"800\" height=\"450\" class=\"size-medium wp-image-97326\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/11/LINAC-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LINAC-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LINAC-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LINAC-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/11/LINAC-960x540.jpg 960w\" sizes=\"(max-width: 800px) 100vw, 800px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">When it opened in Menlo Park in 1966 the Stanford Linear Accelerator Center had the longest particle accelerator in the world. \u003ccite>(SLAC National Accelerator Laboratory Photo Archives)\u003c/cite>\u003c/figcaption>\u003c/figure>\n\u003cp>When it opened in Menlo Park in 1966, the Stanford Linear Accelerator Center, now the \u003ca href=\"http://www.slac.stanford.edu/\">SLAC National Accelerator Laboratory\u003c/a>, was the longest particle accelerator in the world. The linear accelerator sent electron beams traveling down a two-mile row of microwave-oven-like devices and smashed them against a stationary target. Physicists used these accelerated electrons to investigate what was inside the protons and neutrons, and in 1968 they found that they were made up of minuscule constituents they called quarks. \u003c/p>\n\u003cp>A few years later, SLAC physicist Burton Richter built a collider – a type of particle accelerator in which particle beams are smashed against each other to reach high energy levels. \u003c/p>\n\u003cp>“All the energy of those two beams could get transformed into new kinds of particles,” said Richter.\u003c/p>\n\u003cp>The so-called SPEAR collider that Richter built led him and his team to discover a more massive quark called the charm quark, and won him the Nobel Prize in physics. \u003c/p>\n\u003cp>“It was a revolutionary idea, to collide two beams against each other,” said Barnett. The SPEAR collider became a precursor to the Large Hadron Collider.\u003c/p>\n\u003cp>Today, dozens of physicists and graduate students at the Lawrence Berkeley Lab and SLAC are working at the Large Hadron Collider, making regular trips to Geneva and crunching data back home in their labs.\u003c/p>\n\u003cp>The particle accelerators at both facilities have been given new uses. \u003c/p>\n\u003cp>The cyclotron at the Lawrence Berkeley Lab is used to test computer chips that go into satellites, by exposing them to high-radiation conditions similar to those they’ll encounter in space. \u003c/p>\n\u003cp>And the X-rays emitted by accelerated particles at SLAC are being used to study the \u003ca href=\"http://ww2.kqed.org/science/2015/07/07/what-happens-when-you-zap-coral-with-the-worlds-most-powerful-x-ray-laser/\">impact of climate change on coral reefs\u003c/a>.\u003c/p>\n\u003cp>For Richter, the Large Hadron Collider offers the tantalizing possibility of answering fundamental questions about the universe, one by one. \u003c/p>\n\u003cp>“The blackboard is covered with Post-it notes now,” said Richter. \u003c/p>\n\u003cp>\u003c/p>\n\u003cp>He looks forward to “going down the line and removing them all.”\u003c/p>\n\n\u003c/div>\u003c/p>",
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"disqusTitle": "Science Spotlight: How to Build a Model of a Future Space-Exploring Robot",
"title": "Science Spotlight: How to Build a Model of a Future Space-Exploring Robot",
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"content": "\u003cp>\u003cspan style=\"font-weight: 400\">Have you ever seen a \u003c/span>\u003ca href=\"http://www.tensegrityfitness.com/fit/wp-content/uploads/2010/02/tensegity1.jpg\">\u003cspan style=\"font-weight: 400\">skeleton\u003c/span>\u003c/a>\u003cspan style=\"font-weight: 400\"> held together with wire in a classroom or at a museum? \u003c/span>\u003cspan style=\"font-weight: 400\"> \u003cimg class=\"wp-image-87303 alignright\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/skeleton-457598_640.jpg\" alt=\"skeleton-457598_640\" width=\"252\" height=\"380\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/skeleton-457598_640.jpg 424w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/skeleton-457598_640-400x604.jpg 400w\" sizes=\"(max-width: 252px) 100vw, 252px\">What would happen if you removed the wire? All of the bones would fall into a heap on the floor! In reality, there are no wires within our bodies. Instead, our bodies are held together with ligaments and soft tissue. Our bones don’t directly connect to one another, but rather the ligaments and soft tissues help hold our bones in place and allow us to move.\u003c/span>\u003c/p>\n\u003cp>Our body is an example of a \u003cb>tensegrity structure\u003c/b>\u003cspan style=\"font-weight: 400\">. In tensegrity structures, rigid parts aren’t directly connected to one another with nails or screws, but instead are connected by wires, cables, elastic bands or, in the case of our bodies, soft tissues. The concept of tensegrity is used to build structures in science, engineering, arts and architecture.\u003c/span>\u003c/p>\n\u003cp>“Tensegrity” was coined by Buckminster Fuller in the 1960s; it’s a \u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/BuckminsterFuller1.jpg\">\u003cimg class=\"wp-image-87310 alignright\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/BuckminsterFuller1.jpg\" alt=\"BuckminsterFuller1\" width=\"259\" height=\"338\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/BuckminsterFuller1.jpg 422w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/BuckminsterFuller1-400x522.jpg 400w\" sizes=\"(max-width: 259px) 100vw, 259px\">\u003c/a>combination of the terms “tension” and “structural integrity.” In physics, “tension” refers to the state of being stretched tight and “structural integrity” has to do with how well a structure can support itself without breaking (think of how well a house or bridge is held together when there is an earthquake). \u003c/p>\n\u003cp>Researchers at \u003ca href=\"http://www.magicalrobot.org/BeingHuman/\">NASA Ames\u003c/a> and \u003ca href=\"http://best.berkeley.edu/\">University of California, Berkeley\u003c/a>, are turning tensegrity structures into functional robots, which could be used in the future to explore space and other planets. These \u003ca href=\"http://ww2.kqed.org/quest/2015/10/01/engineering-is-exploring-space-with-shape-shifting-robots/\">tensegrity structure robots\u003c/a> could offer several advantages over traditional space rovers. Tensegrity robots can handle more impact than traditional rovers, can be compacted into a small container, and they are also lighter in weight and less expensive.\u003c/p>\n\u003cp>\u003cspan style=\"font-weight: 400\">In the above video, I show you how to make a simple tensegrity model using drinking straws and rubber bands. Here are the materials you will need to create the model:\u003c/span>\u003c/p>\n\u003cul>\n\u003cli style=\"font-weight: 400\">\u003cspan style=\"font-weight: 400\">six stiff drinking straws cut to a length of five inches\u003c/span>\u003c/li>\n\u003cli style=\"font-weight: 400\">\u003cspan style=\"font-weight: 400\">six stretchy rubber bands\u003c/span>\u003c/li>\n\u003cli style=\"font-weight: 400\">\u003cspan style=\"font-weight: 400\">six smaller rubber bands\u003c/span>\u003c/li>\n\u003cli style=\"font-weight: 400\">\u003cspan style=\"font-weight: 400\">scissors\u003c/span>\u003c/li>\n\u003c/ul>\n\u003cp>Follow these simple steps to build your own tensegrity model:\u003c/p>\n\u003col>\n\u003cli>Cut six straws into five-inch pieces\u003c/li>\n\u003cli>Loosely tie small rubber bands on both ends of two pairs of straws\u003c/li>\n\u003cli>Place one pair of straws between the other\u003c/li>\n\u003cli>Loosely tie a small rubber band around one end of another pair of straws\u003c/li>\n\u003cli>Place the new pair of straws between the first two pairs, then loosely place a rubber band on the other end\u003c/li>\n\u003cli>Place a longer rubber band into the slit of one straw. Take the rubber band and stretch it over the pair of straws perpendicular to the original straw and over to the other end of that straw\u003c/li>\n\u003cli>Take the two middle points of the long rubber band and place them into the slits of the perpendicular straws\u003c/li>\n\u003cli>Once you have done this will all the straws, cut the smaller rubber bands that are holding the pairs together\u003c/li>\n\u003c/ol>\n\u003cp>You can create the model as shown, make a larger one or even turn it into a robot. Share what you have created with us in the comments below, or with @KQEDedspace on Twitter and Instagram using #tensegrity.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>\u003c/p>\n\u003cp>This Science Spotlight video is part of our \u003cstrong>\u003ca href=\"http://ww2.kqed.org/quest/2015/10/22/e-book-engineering-is-exploring-space-with-shape-shifting-robots/\" target=\"_blank\">Engineering Is Exploring Space with Shape-Shifting Robots\u003c/a>\u003c/strong> e-book. The e-book explores the science and engineering principles behind how researchers are developing tensegrity robots for space exploration. The e-book includes videos, interactives and media-making opportunities. You can find all of our e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\">kqed.org/ebooks\u003c/a>\u003c/p>\n\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>\u003cspan style=\"font-weight: 400\">Have you ever seen a \u003c/span>\u003ca href=\"http://www.tensegrityfitness.com/fit/wp-content/uploads/2010/02/tensegity1.jpg\">\u003cspan style=\"font-weight: 400\">skeleton\u003c/span>\u003c/a>\u003cspan style=\"font-weight: 400\"> held together with wire in a classroom or at a museum? \u003c/span>\u003cspan style=\"font-weight: 400\"> \u003cimg class=\"wp-image-87303 alignright\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/skeleton-457598_640.jpg\" alt=\"skeleton-457598_640\" width=\"252\" height=\"380\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/skeleton-457598_640.jpg 424w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/skeleton-457598_640-400x604.jpg 400w\" sizes=\"(max-width: 252px) 100vw, 252px\">What would happen if you removed the wire? All of the bones would fall into a heap on the floor! In reality, there are no wires within our bodies. Instead, our bodies are held together with ligaments and soft tissue. Our bones don’t directly connect to one another, but rather the ligaments and soft tissues help hold our bones in place and allow us to move.\u003c/span>\u003c/p>\n\u003cp>Our body is an example of a \u003cb>tensegrity structure\u003c/b>\u003cspan style=\"font-weight: 400\">. In tensegrity structures, rigid parts aren’t directly connected to one another with nails or screws, but instead are connected by wires, cables, elastic bands or, in the case of our bodies, soft tissues. The concept of tensegrity is used to build structures in science, engineering, arts and architecture.\u003c/span>\u003c/p>\n\u003cp>“Tensegrity” was coined by Buckminster Fuller in the 1960s; it’s a \u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/BuckminsterFuller1.jpg\">\u003cimg class=\"wp-image-87310 alignright\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/BuckminsterFuller1.jpg\" alt=\"BuckminsterFuller1\" width=\"259\" height=\"338\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/BuckminsterFuller1.jpg 422w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/BuckminsterFuller1-400x522.jpg 400w\" sizes=\"(max-width: 259px) 100vw, 259px\">\u003c/a>combination of the terms “tension” and “structural integrity.” In physics, “tension” refers to the state of being stretched tight and “structural integrity” has to do with how well a structure can support itself without breaking (think of how well a house or bridge is held together when there is an earthquake). \u003c/p>\n\u003cp>Researchers at \u003ca href=\"http://www.magicalrobot.org/BeingHuman/\">NASA Ames\u003c/a> and \u003ca href=\"http://best.berkeley.edu/\">University of California, Berkeley\u003c/a>, are turning tensegrity structures into functional robots, which could be used in the future to explore space and other planets. These \u003ca href=\"http://ww2.kqed.org/quest/2015/10/01/engineering-is-exploring-space-with-shape-shifting-robots/\">tensegrity structure robots\u003c/a> could offer several advantages over traditional space rovers. Tensegrity robots can handle more impact than traditional rovers, can be compacted into a small container, and they are also lighter in weight and less expensive.\u003c/p>\n\u003cp>\u003cspan style=\"font-weight: 400\">In the above video, I show you how to make a simple tensegrity model using drinking straws and rubber bands. Here are the materials you will need to create the model:\u003c/span>\u003c/p>\n\u003cul>\n\u003cli style=\"font-weight: 400\">\u003cspan style=\"font-weight: 400\">six stiff drinking straws cut to a length of five inches\u003c/span>\u003c/li>\n\u003cli style=\"font-weight: 400\">\u003cspan style=\"font-weight: 400\">six stretchy rubber bands\u003c/span>\u003c/li>\n\u003cli style=\"font-weight: 400\">\u003cspan style=\"font-weight: 400\">six smaller rubber bands\u003c/span>\u003c/li>\n\u003cli style=\"font-weight: 400\">\u003cspan style=\"font-weight: 400\">scissors\u003c/span>\u003c/li>\n\u003c/ul>\n\u003cp>Follow these simple steps to build your own tensegrity model:\u003c/p>\n\u003col>\n\u003cli>Cut six straws into five-inch pieces\u003c/li>\n\u003cli>Loosely tie small rubber bands on both ends of two pairs of straws\u003c/li>\n\u003cli>Place one pair of straws between the other\u003c/li>\n\u003cli>Loosely tie a small rubber band around one end of another pair of straws\u003c/li>\n\u003cli>Place the new pair of straws between the first two pairs, then loosely place a rubber band on the other end\u003c/li>\n\u003cli>Place a longer rubber band into the slit of one straw. Take the rubber band and stretch it over the pair of straws perpendicular to the original straw and over to the other end of that straw\u003c/li>\n\u003cli>Take the two middle points of the long rubber band and place them into the slits of the perpendicular straws\u003c/li>\n\u003cli>Once you have done this will all the straws, cut the smaller rubber bands that are holding the pairs together\u003c/li>\n\u003c/ol>\n\u003cp>You can create the model as shown, make a larger one or even turn it into a robot. Share what you have created with us in the comments below, or with @KQEDedspace on Twitter and Instagram using #tensegrity.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cp>Alice Agogino is a mechanical engineering professor at the University of California at Berkeley, and she and \u003ca href=\"http://best.berkeley.edu/\">her lab\u003c/a> are among a group of engineers that are designing what might be the next generation of space exploring robots. These don’t look like the Mars rovers with the big wheels that you may be thinking of-- oh no, they are totally different-- and that’s the point. These robots actually look like a ball of rods and cables, and they are modelled after a baby toy, of all things.\u003c/p>\n\u003cfigure id=\"attachment_78452\" class=\"wp-caption alignleft\" style=\"max-width: 400px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/Vytas_with_toy.jpg\">\u003cimg class=\"size-thumbnail wp-image-78452\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/Vytas_with_toy-400x225.jpg\" alt=\"Vytas with bay toy\" width=\"400\" height=\"225\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/Vytas_with_toy-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/Vytas_with_toy-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/Vytas_with_toy-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/Vytas_with_toy-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/Vytas_with_toy-960x540.jpg 960w\" sizes=\"(max-width: 400px) 100vw, 400px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">Vytas SunSpiral with a tensegrity baby toy\u003c/figcaption>\u003c/figure>\n\u003cp>It all began when \u003ca href=\"http://www.magicalrobot.org/BeingHuman/\">Vytas SunSpiral\u003c/a>, a robotics researcher and his colleague Adrian Agogino (Alice Agogino’s son and also a robotics researcher) were brainstorming how to improve space robotics. They happened to be playing with a baby toy called a Skwish. The skwish is a type of structure known as a tensegrity structure. In tensegrity structures, rigid parts like wooden rods or steel beams aren’t directly connected to one another by nails or screws, but rather are held together by wires, cables, chains or some kind of band. As a baby toy they are fun to play with because you can squash them and throw them and they won’t break. They can \u003ca href=\"https://www.youtube.com/watch?v=LddumjHEmg8\">easily distribute and absorb forces\u003c/a> that result from impact. So after throwing this toy on the ground and observing its ability to remain intact, SunSpiral’s team realized this type of structure might be a good landing structure for a space robot.\u003c/p>\n\u003cp>Traditional space robots, like the Mars rovers are really difficult to land because you have a pretty delicate robot approaching a planet at really high speeds. As a result, engineers spend a lot of time and money making sure nothing breaks during landing. In fact, landing Curiosity, the current robot on Mars, has been nicknamed the\u003ca href=\"https://www.youtube.com/watch?v=Ki_Af_o9Q9s\"> 7 minutes of terror\u003c/a>. Traditional rovers are also somewhat limited in the places they can explore. For example, rock walls or cliff edges are too risky for them. If one were to fall down a steep slope then it could break rendering the rover useless. Sharp rocky surfaces can also tear or puncture the robot’s wheels making it difficult to move.\u003c/p>\n\u003cp>Robots based on tensegrity structures might be easier to land and cheaper to make. They could possibly even explore some of the more challenging surfaces.\u003c/p>\n\u003cfigure id=\"attachment_78455\" class=\"wp-caption alignleft\" style=\"max-width: 400px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/v1.jpg\">\u003cimg class=\"size-thumbnail wp-image-78455\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/v1-400x390.jpg\" alt=\"early prototype of tensegrity robot\" width=\"400\" height=\"390\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/v1-400x390.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v1-800x780.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v1-960x937.jpg 960w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v1-32x32.jpg 32w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v1.jpg 1106w\" sizes=\"(max-width: 400px) 100vw, 400px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">An early prototype of a tensegrity robot created by Alice Agogino's lab\u003c/figcaption>\u003c/figure>\n\u003cp>“So tensegrity rovers offer a lot of advantages over the traditional wheeled-structured rovers. They’re lighter weight, they’re more robust, they can handle lot of damage because the load is distributed among the tensile elements,” explains Alice Agogino.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>SunSpiral and his colleagues have received a \u003ca href=\"https://www.youtube.com/watch?v=4Z_ablQGh-8\">NASA Innovative Advanced Concepts\u003c/a> award to see if they can get these structures to move and perform the tasks that are needed for space exploration. He is now a principal investigator of the Dynamic Tensegrity Robotics Lab at NASA Ames Research Center, and several collaborators, like Agogino’s lab at Berkeley have joined the research.\u003c/p>\n\u003cp>“How science really happens is that you get teams together, you build collaborations, you build networks of colleagues who are thinking about similar parts of the problem but may be taking slightly different approaches to it… and you work with each other and you share ideas,” adds SunSpiral.\u003c/p>\n\u003cp>There’s a lot involved in designing one of these robots. In general, computers control motors that cause the cables to stretch or compress. This causes the structure to shift its shape, altering the center of gravity and creating a rolling motion. The eventual idea is that these robots could carry instruments, like cameras and sensors. Several robots could be compactly packed into a space craft and dropped on a planet where they could roll around taking images and gathering data.\u003c/p>\n\u003cfigure id=\"attachment_78456\" class=\"wp-caption alignleft\" style=\"max-width: 400px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/v2.jpg\">\u003cimg class=\"size-thumbnail wp-image-78456\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/v2-400x225.jpg\" alt=\"Another p\" width=\"400\" height=\"225\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/v2-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v2-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v2-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v2-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v2-960x540.jpg 960w\" sizes=\"(max-width: 400px) 100vw, 400px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">One of the tensegrity robot prototypes developed at Alice Agogino's lab. This one has a centralized computer and uses linear actuators to expand and compress the cables to get the robots to move.\u003c/figcaption>\u003c/figure>\n\u003cp>Agogino’s lab at Berkeley has created several rapid prototypes of the tensegrity structures. For each prototype they change parameters like the materials they are making the robots out of and the types and locations of the motors. For example, one version uses motors that stretches and compresses the cables by pulling or pushing on a straight line, while another version actually wraps the cable around a spool to shorten it.\u003c/p>\n\u003cfigure id=\"attachment_78458\" class=\"wp-caption alignleft\" style=\"max-width: 400px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/clean_robot.jpg\">\u003cimg class=\"size-thumbnail wp-image-78458\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/clean_robot-400x225.jpg\" alt=\"This is the most recent tensegrity robot prototype created by Alice Agogino's lab. The computers and motors that control movement are located in the pods.\" width=\"400\" height=\"225\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/clean_robot-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/clean_robot-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/clean_robot-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/clean_robot-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/clean_robot-960x540.jpg 960w\" sizes=\"(max-width: 400px) 100vw, 400px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">This is the most recent tensegrity robot prototype created by Alice Agogino's lab. The computers and motors that control movement are located in the pods.\u003c/figcaption>\u003c/figure>\n\u003cp>Once the prototypes are built they test for things like how fast they go, how much energy they need to move, how much weight they can carry, how far they can be dropped, and how they respond to different environments. In additional to building physical prototypes, the teams are also exploring how to best program the robots to move using \u003ca href=\"http://ti.arc.nasa.gov/tech/asr/intelligent-robotics/tensegrity/ntrt/\">NASA’s Tensegrity Robotics Toolkit (NTRT)\u003c/a>. They also use computer simulations to build computer models of these robots.\u003c/p>\n\u003cp>An actual space mission with these robots is still a long way off. But the researchers are looking at other uses for tensegrity robotics as well. For example, they are examining how tensegrity robots could be used in home healthcare. Her lab is also developing educational toys and robots to help teach students about tensegrity and robotics.\u003c/p>\n\u003cp>“We’re exploring just the wide range of motions that we can get out of tensegrities. Can they eventually climb up stairs for home health care – that's one thing that we’re really interested in. So we’re really interested exploring the limit of what you can do with this kind of structure,” explains Alice Agogino. Tensegrity robots could offer exciting new possibilities in the world of robotics.\u003c/p>\n\u003cp>[ad floatright]\u003c/p>\n\u003cp>\u003cstrong>Discussion Questions\u003c/strong>\u003cbr>\n1. What problems were the engineers trying to solve?\u003cbr>\n2. What constraints do you think they might be working with?\u003cbr>\n3. What types of things are they testing when the engineers test their prototypes?\u003cbr>\n4. What types of changes might the engineers make to their prototypes and designs?\u003cbr>\n5. How do you think the researchers are using prototypes and computer models to design the robots?\u003c/p>\n\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>Alice Agogino is a mechanical engineering professor at the University of California at Berkeley, and she and \u003ca href=\"http://best.berkeley.edu/\">her lab\u003c/a> are among a group of engineers that are designing what might be the next generation of space exploring robots. These don’t look like the Mars rovers with the big wheels that you may be thinking of-- oh no, they are totally different-- and that’s the point. These robots actually look like a ball of rods and cables, and they are modelled after a baby toy, of all things.\u003c/p>\n\u003cfigure id=\"attachment_78452\" class=\"wp-caption alignleft\" style=\"max-width: 400px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/Vytas_with_toy.jpg\">\u003cimg class=\"size-thumbnail wp-image-78452\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/Vytas_with_toy-400x225.jpg\" alt=\"Vytas with bay toy\" width=\"400\" height=\"225\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/Vytas_with_toy-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/Vytas_with_toy-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/Vytas_with_toy-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/Vytas_with_toy-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/Vytas_with_toy-960x540.jpg 960w\" sizes=\"(max-width: 400px) 100vw, 400px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">Vytas SunSpiral with a tensegrity baby toy\u003c/figcaption>\u003c/figure>\n\u003cp>It all began when \u003ca href=\"http://www.magicalrobot.org/BeingHuman/\">Vytas SunSpiral\u003c/a>, a robotics researcher and his colleague Adrian Agogino (Alice Agogino’s son and also a robotics researcher) were brainstorming how to improve space robotics. They happened to be playing with a baby toy called a Skwish. The skwish is a type of structure known as a tensegrity structure. In tensegrity structures, rigid parts like wooden rods or steel beams aren’t directly connected to one another by nails or screws, but rather are held together by wires, cables, chains or some kind of band. As a baby toy they are fun to play with because you can squash them and throw them and they won’t break. They can \u003ca href=\"https://www.youtube.com/watch?v=LddumjHEmg8\">easily distribute and absorb forces\u003c/a> that result from impact. So after throwing this toy on the ground and observing its ability to remain intact, SunSpiral’s team realized this type of structure might be a good landing structure for a space robot.\u003c/p>\n\u003cp>Traditional space robots, like the Mars rovers are really difficult to land because you have a pretty delicate robot approaching a planet at really high speeds. As a result, engineers spend a lot of time and money making sure nothing breaks during landing. In fact, landing Curiosity, the current robot on Mars, has been nicknamed the\u003ca href=\"https://www.youtube.com/watch?v=Ki_Af_o9Q9s\"> 7 minutes of terror\u003c/a>. Traditional rovers are also somewhat limited in the places they can explore. For example, rock walls or cliff edges are too risky for them. If one were to fall down a steep slope then it could break rendering the rover useless. Sharp rocky surfaces can also tear or puncture the robot’s wheels making it difficult to move.\u003c/p>\n\u003cp>Robots based on tensegrity structures might be easier to land and cheaper to make. They could possibly even explore some of the more challenging surfaces.\u003c/p>\n\u003cfigure id=\"attachment_78455\" class=\"wp-caption alignleft\" style=\"max-width: 400px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/v1.jpg\">\u003cimg class=\"size-thumbnail wp-image-78455\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/v1-400x390.jpg\" alt=\"early prototype of tensegrity robot\" width=\"400\" height=\"390\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/v1-400x390.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v1-800x780.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v1-960x937.jpg 960w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v1-32x32.jpg 32w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v1.jpg 1106w\" sizes=\"(max-width: 400px) 100vw, 400px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">An early prototype of a tensegrity robot created by Alice Agogino's lab\u003c/figcaption>\u003c/figure>\n\u003cp>“So tensegrity rovers offer a lot of advantages over the traditional wheeled-structured rovers. They’re lighter weight, they’re more robust, they can handle lot of damage because the load is distributed among the tensile elements,” explains Alice Agogino.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>SunSpiral and his colleagues have received a \u003ca href=\"https://www.youtube.com/watch?v=4Z_ablQGh-8\">NASA Innovative Advanced Concepts\u003c/a> award to see if they can get these structures to move and perform the tasks that are needed for space exploration. He is now a principal investigator of the Dynamic Tensegrity Robotics Lab at NASA Ames Research Center, and several collaborators, like Agogino’s lab at Berkeley have joined the research.\u003c/p>\n\u003cp>“How science really happens is that you get teams together, you build collaborations, you build networks of colleagues who are thinking about similar parts of the problem but may be taking slightly different approaches to it… and you work with each other and you share ideas,” adds SunSpiral.\u003c/p>\n\u003cp>There’s a lot involved in designing one of these robots. In general, computers control motors that cause the cables to stretch or compress. This causes the structure to shift its shape, altering the center of gravity and creating a rolling motion. The eventual idea is that these robots could carry instruments, like cameras and sensors. Several robots could be compactly packed into a space craft and dropped on a planet where they could roll around taking images and gathering data.\u003c/p>\n\u003cfigure id=\"attachment_78456\" class=\"wp-caption alignleft\" style=\"max-width: 400px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/v2.jpg\">\u003cimg class=\"size-thumbnail wp-image-78456\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/v2-400x225.jpg\" alt=\"Another p\" width=\"400\" height=\"225\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/v2-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v2-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v2-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v2-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/v2-960x540.jpg 960w\" sizes=\"(max-width: 400px) 100vw, 400px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">One of the tensegrity robot prototypes developed at Alice Agogino's lab. This one has a centralized computer and uses linear actuators to expand and compress the cables to get the robots to move.\u003c/figcaption>\u003c/figure>\n\u003cp>Agogino’s lab at Berkeley has created several rapid prototypes of the tensegrity structures. For each prototype they change parameters like the materials they are making the robots out of and the types and locations of the motors. For example, one version uses motors that stretches and compresses the cables by pulling or pushing on a straight line, while another version actually wraps the cable around a spool to shorten it.\u003c/p>\n\u003cfigure id=\"attachment_78458\" class=\"wp-caption alignleft\" style=\"max-width: 400px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/clean_robot.jpg\">\u003cimg class=\"size-thumbnail wp-image-78458\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/10/clean_robot-400x225.jpg\" alt=\"This is the most recent tensegrity robot prototype created by Alice Agogino's lab. The computers and motors that control movement are located in the pods.\" width=\"400\" height=\"225\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/10/clean_robot-400x225.jpg 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/clean_robot-800x450.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/clean_robot-1440x810.jpg 1440w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/clean_robot-1180x664.jpg 1180w, https://ww2.kqed.org/app/uploads/sites/39/2015/10/clean_robot-960x540.jpg 960w\" sizes=\"(max-width: 400px) 100vw, 400px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">This is the most recent tensegrity robot prototype created by Alice Agogino's lab. The computers and motors that control movement are located in the pods.\u003c/figcaption>\u003c/figure>\n\u003cp>Once the prototypes are built they test for things like how fast they go, how much energy they need to move, how much weight they can carry, how far they can be dropped, and how they respond to different environments. In additional to building physical prototypes, the teams are also exploring how to best program the robots to move using \u003ca href=\"http://ti.arc.nasa.gov/tech/asr/intelligent-robotics/tensegrity/ntrt/\">NASA’s Tensegrity Robotics Toolkit (NTRT)\u003c/a>. They also use computer simulations to build computer models of these robots.\u003c/p>\n\u003cp>An actual space mission with these robots is still a long way off. But the researchers are looking at other uses for tensegrity robotics as well. For example, they are examining how tensegrity robots could be used in home healthcare. Her lab is also developing educational toys and robots to help teach students about tensegrity and robotics.\u003c/p>\n\u003cp>“We’re exploring just the wide range of motions that we can get out of tensegrities. Can they eventually climb up stairs for home health care – that's one thing that we’re really interested in. So we’re really interested exploring the limit of what you can do with this kind of structure,” explains Alice Agogino. Tensegrity robots could offer exciting new possibilities in the world of robotics.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cp>\u003ca href=\"http://water.woop.ie/\">\u003cimg class=\"alignleft size-full wp-image-74407\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/09/Clean-Water-640x360-cover.png\" alt=\"Clean Water-640x360-cover\" width=\"640\" height=\"360\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/09/Clean-Water-640x360-cover.png 640w, https://ww2.kqed.org/app/uploads/sites/39/2015/09/Clean-Water-640x360-cover-400x225.png 400w\" sizes=\"(max-width: 640px) 100vw, 640px\">\u003c/a>\u003c/p>\n\u003cp>\u003ca href=\"http://water.woop.ie/\" target=\"_blank\">\u003cstrong>View the E-book\u003c/strong>\u003c/a>\u003c/p>\n\u003cp>More than 700 million people around the world do not have access to clean drinking water. For residents of Dhaka, Bangladesh, this is because sewage seeps into the city’s old, cracked pipes that transport their drinking water. The invasion of sewage into the water means that waterborne diseases spread easily, sickening many people. Without overhauling the city’s water transportation infrastructure, how could residents have access to safe water? By cleaning it where it’s collected--at the communal hand pumps.\u003c/p>\n\u003cp>The new, media-rich e-book from QUEST, \u003ca href=\"http://water.woop.ie/\" target=\"_blank\">Engineering Is Cleaning Poop from Drinking Water\u003c/a>, tells the story of how a team of scientists and engineers at Stanford University designed an inexpensive water purification device that attaches to the water pumps used by people in Dhaka. The device dispenses chlorine in just the right amount, killing microbes and making the water safe to drink. The book explains the team’s process of researching solutions, designing the device, testing it and making improvements (using a 3D printer!). The book also contains a career spotlight video of Amy Pickering, the lead engineer on the project. And, there’s a look at the various ways water treatment plants in the United States treat water so that it’s safe for us to drink.\u003c/p>\n\u003cp>\u003ca href=\"http://water.woop.ie/\" target=\"_blank\">Engineering Is Cleaning Poop from Drinking Water\u003c/a> is the fourth e-book in our \u003cstrong>Engineering Is...\u003c/strong> series and is available to view on your computer, tablet and smartphone, for free. You can find links to all of KQED's e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\" target=\"_blank\">kqed.org/ebooks\u003c/a>.\u003c/p>\n\u003cdiv class=\"clearfix\">\n\u003cp>\u003ca href=\"http://water.woop.ie/\">\u003cimg class=\"alignleft size-full wp-image-74408\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/09/Lotus-Water-Project-Cover-105x136.png\" alt=\"Lotus Water Project Cover 105x136\" width=\"105\" height=\"136\">\u003c/a>\u003c/p>\n\u003cp>Learn how a 3D-printed device made it possible for people in Dhaka, Bangladesh to have access to clean drinking water.\u003c/p>\n\u003cp>\u003ca href=\"http://water.woop.ie/\">\u003cimg class=\"wp-image-16316\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/E-book-button-for-Web.png\" alt=\"View it on QUEST\" width=\"110\" height=\"40\">\u003c/a>\u003c/p>\n\u003c/div>\n\u003cp>[ad fullwidth]\u003c/p>\u003cp>\u003c/p>\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>\u003ca href=\"http://water.woop.ie/\">\u003cimg class=\"alignleft size-full wp-image-74407\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/09/Clean-Water-640x360-cover.png\" alt=\"Clean Water-640x360-cover\" width=\"640\" height=\"360\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/09/Clean-Water-640x360-cover.png 640w, https://ww2.kqed.org/app/uploads/sites/39/2015/09/Clean-Water-640x360-cover-400x225.png 400w\" sizes=\"(max-width: 640px) 100vw, 640px\">\u003c/a>\u003c/p>\n\u003cp>\u003ca href=\"http://water.woop.ie/\" target=\"_blank\">\u003cstrong>View the E-book\u003c/strong>\u003c/a>\u003c/p>\n\u003cp>More than 700 million people around the world do not have access to clean drinking water. For residents of Dhaka, Bangladesh, this is because sewage seeps into the city’s old, cracked pipes that transport their drinking water. The invasion of sewage into the water means that waterborne diseases spread easily, sickening many people. Without overhauling the city’s water transportation infrastructure, how could residents have access to safe water? By cleaning it where it’s collected--at the communal hand pumps.\u003c/p>\n\u003cp>The new, media-rich e-book from QUEST, \u003ca href=\"http://water.woop.ie/\" target=\"_blank\">Engineering Is Cleaning Poop from Drinking Water\u003c/a>, tells the story of how a team of scientists and engineers at Stanford University designed an inexpensive water purification device that attaches to the water pumps used by people in Dhaka. The device dispenses chlorine in just the right amount, killing microbes and making the water safe to drink. The book explains the team’s process of researching solutions, designing the device, testing it and making improvements (using a 3D printer!). The book also contains a career spotlight video of Amy Pickering, the lead engineer on the project. And, there’s a look at the various ways water treatment plants in the United States treat water so that it’s safe for us to drink.\u003c/p>\n\u003cp>\u003ca href=\"http://water.woop.ie/\" target=\"_blank\">Engineering Is Cleaning Poop from Drinking Water\u003c/a> is the fourth e-book in our \u003cstrong>Engineering Is...\u003c/strong> series and is available to view on your computer, tablet and smartphone, for free. You can find links to all of KQED's e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\" target=\"_blank\">kqed.org/ebooks\u003c/a>.\u003c/p>\n\u003cdiv class=\"clearfix\">\n\u003cp>\u003ca href=\"http://water.woop.ie/\">\u003cimg class=\"alignleft size-full wp-image-74408\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/09/Lotus-Water-Project-Cover-105x136.png\" alt=\"Lotus Water Project Cover 105x136\" width=\"105\" height=\"136\">\u003c/a>\u003c/p>\n\u003cp>Learn how a 3D-printed device made it possible for people in Dhaka, Bangladesh to have access to clean drinking water.\u003c/p>\n\u003cp>\u003ca href=\"http://water.woop.ie/\">\u003cimg class=\"wp-image-16316\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/E-book-button-for-Web.png\" alt=\"View it on QUEST\" width=\"110\" height=\"40\">\u003c/a>\u003c/p>\n\u003c/div>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cp>\u003ca href=\"http://foldscope.woop.ie/\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/05/Origami-Miscroscope_fin-02.png\" alt=\"Origami Miscroscope_fin-02\" width=\"641\" height=\"361\" class=\"alignleft size-full wp-image-74122\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/05/Origami-Miscroscope_fin-02.png 641w, https://ww2.kqed.org/app/uploads/sites/39/2015/05/Origami-Miscroscope_fin-02-400x225.png 400w\" sizes=\"(max-width: 641px) 100vw, 641px\">\u003c/a>\u003c/p>\n\u003cp>\u003ca href=\"http://foldscope.woop.ie/\" target=\"_blank\">\u003cstrong>View the E-book\u003c/strong>\u003c/a>\u003c/p>\n\u003cp>The ability to diagnose malaria, schistosomiasis and African sleeping sickness can be the difference between life and death for people afflicted with those diseases. And while diagnosis is easily done with microscopes, in many parts of the world, lack of access to these tools means these diseases are often misdiagnosed and patients go untreated. What is the solution? A $1 origami microscope, of course, called a \u003ca href=\"http://www.foldscope.com/\" target=\"_blank\">Foldscope\u003c/a>, that can be shipped and used anywhere.\u003c/p>\n\u003cp>The new, media-rich e-book from QUEST, \u003ca href=\"http://foldscope.woop.ie/\" target=\"_blank\">Engineering Is Diagnosing Diseases with Origami Microscopes\u003c/a>, tells the story of how Stanford University bioengineer \u003ca href=\"http://stanford.edu/~manup/\" target=\"_blank\">Manu Prakash\u003c/a> and his colleagues designed a lightweight, inexpensive, robust, paper microscope in order to help people in developing countries and remote areas diagnose diseases. The book explores optics and how microscopes work--including the Foldscope--through video and animation, and shows how Foldscopes are inspiring students around the world to ask questions and make discoveries. It also contains a career spotlight video of a graduate student who uses microscopes in his research on heart cells. \u003c/p>\n\u003cp>\u003ca href=\"http://foldscope.woop.ie/\" target=\"_blank\">Engineering Is Diagnosing Diseases with Origami Microscopes\u003c/a> is the third e-book in our \u003cstrong>Engineering Is...\u003c/strong> series and is available to view on your computer, tablet and smartphone, for free. You can find links to all of KQED's e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\" target=\"_blank\">kqed.org/ebooks\u003c/a>.\u003c/p>\n\u003cdiv class=\"clearfix\">\n\u003cp>\u003ca href=\"http://foldscope.woop.ie/\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/05/Origami-Miscroscope_fin-03_tiny.jpg\" alt=\"Origami Miscroscope_fin-03_tiny\" width=\"105\" height=\"136\" class=\"alignleft size-full wp-image-74125\">\u003c/a>\u003c/p>\n\u003cp>Discover how engineers developed a $1 paper microscope to help diagnose diseases in remote areas.\n\u003c/p>\n\u003cp>\u003ca href=\"http://foldscope.woop.ie/\">\u003cimg class=\"wp-image-16316\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/E-book-button-for-Web.png\" alt=\"View it on QUEST\" width=\"110\" height=\"40\">\u003c/a>\n\u003c/p>\u003c/div>\n\u003cp>[ad fullwidth]\u003c/p>\u003cp>\u003c/p>\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>\u003ca href=\"http://foldscope.woop.ie/\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/05/Origami-Miscroscope_fin-02.png\" alt=\"Origami Miscroscope_fin-02\" width=\"641\" height=\"361\" class=\"alignleft size-full wp-image-74122\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/05/Origami-Miscroscope_fin-02.png 641w, https://ww2.kqed.org/app/uploads/sites/39/2015/05/Origami-Miscroscope_fin-02-400x225.png 400w\" sizes=\"(max-width: 641px) 100vw, 641px\">\u003c/a>\u003c/p>\n\u003cp>\u003ca href=\"http://foldscope.woop.ie/\" target=\"_blank\">\u003cstrong>View the E-book\u003c/strong>\u003c/a>\u003c/p>\n\u003cp>The ability to diagnose malaria, schistosomiasis and African sleeping sickness can be the difference between life and death for people afflicted with those diseases. And while diagnosis is easily done with microscopes, in many parts of the world, lack of access to these tools means these diseases are often misdiagnosed and patients go untreated. What is the solution? A $1 origami microscope, of course, called a \u003ca href=\"http://www.foldscope.com/\" target=\"_blank\">Foldscope\u003c/a>, that can be shipped and used anywhere.\u003c/p>\n\u003cp>The new, media-rich e-book from QUEST, \u003ca href=\"http://foldscope.woop.ie/\" target=\"_blank\">Engineering Is Diagnosing Diseases with Origami Microscopes\u003c/a>, tells the story of how Stanford University bioengineer \u003ca href=\"http://stanford.edu/~manup/\" target=\"_blank\">Manu Prakash\u003c/a> and his colleagues designed a lightweight, inexpensive, robust, paper microscope in order to help people in developing countries and remote areas diagnose diseases. The book explores optics and how microscopes work--including the Foldscope--through video and animation, and shows how Foldscopes are inspiring students around the world to ask questions and make discoveries. It also contains a career spotlight video of a graduate student who uses microscopes in his research on heart cells. \u003c/p>\n\u003cp>\u003ca href=\"http://foldscope.woop.ie/\" target=\"_blank\">Engineering Is Diagnosing Diseases with Origami Microscopes\u003c/a> is the third e-book in our \u003cstrong>Engineering Is...\u003c/strong> series and is available to view on your computer, tablet and smartphone, for free. You can find links to all of KQED's e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\" target=\"_blank\">kqed.org/ebooks\u003c/a>.\u003c/p>\n\u003cdiv class=\"clearfix\">\n\u003cp>\u003ca href=\"http://foldscope.woop.ie/\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/05/Origami-Miscroscope_fin-03_tiny.jpg\" alt=\"Origami Miscroscope_fin-03_tiny\" width=\"105\" height=\"136\" class=\"alignleft size-full wp-image-74125\">\u003c/a>\u003c/p>\n\u003cp>Discover how engineers developed a $1 paper microscope to help diagnose diseases in remote areas.\n\u003c/p>\n\u003cp>\u003ca href=\"http://foldscope.woop.ie/\">\u003cimg class=\"wp-image-16316\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/E-book-button-for-Web.png\" alt=\"View it on QUEST\" width=\"110\" height=\"40\">\u003c/a>\n\u003c/p>\u003c/div>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cp>\u003cem>Trouble viewing the video? Stream or download it on \u003ca href=\"http://www.pbslearningmedia.org/resource/31a22583-dcee-420a-9f8f-8966c86dbf8e/science-spotlight-bending-light-with-a-new-kind-of-microscope/\"> PBS LearningMedia\u003c/a>.\u003c/em>\u003c/p>\n\u003cp>\u003cem>Article by Lauren Farrar\u003c/em>\u003c/p>\n\u003cp>Manu Prakash, a bioengineer at Stanford University, has created a fully functional microscope out of waterproof paper that uses teeny-tiny lenses to magnify objects. He calls it a Foldscope. The different parts of the microscope are printed on paper, which the user punches out and folds together. The Foldscope requires no power outlets and works with standard microscope slides.\u003c/p>\n\u003cfigure id=\"attachment_74155\" class=\"wp-caption alignleft\" style=\"max-width: 300px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Foldscope_CU_small_white.jpg\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Foldscope_CU_small_white-300x169.jpg\" alt=\"the Foldscope\" width=\"300\" height=\"169\" class=\"size-thumbnail wp-image-74155\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">A close up of the Foldscope.\u003c/figcaption>\u003c/figure>\n\u003cp>Microscopes are important tools that allow people to view objects that are so small that you wouldn’t ordinarily be able to see them, like bacteria or blood cells. From healthcare workers using microscopes to look at blood samples to diagnose diseases, to forensic scientists using them to study evidence from crime scenes, many different kinds of microscopes have been developed for a variety of purposes.\u003c/p>\n\u003cp>The Foldscope operates a lot like a traditional microscope in that it uses lenses to bend light in order to make tiny images appear larger. Light travels in waves and when it passes through media with a different density than air, such as water, the light changes direction, or bends. This is why a pencil looks bent when it is halfway submerged in a glass of water. This bending of light is known as refraction. Curved objects, such as lenses also bend light. How the light bends depends on how curved the lens is and the material it's made out of. Convex lenses, which are thicker in the middle and curve outward, can be used to magnify objects.\u003c/p>\n\u003cfigure id=\"attachment_74063\" class=\"wp-caption alignleft\" style=\"max-width: 640px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/05/Lense_schematic_small.jpg\">\u003cimg class=\"size-large wp-image-74063\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/05/Lense_schematic_small-640x360.jpg\" alt=\"schematic of a convex lens\" width=\"640\" height=\"360\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">A convex lens can bend light and make an object appear larger by creating a larger virtual image that your eye can see.\u003c/figcaption>\u003c/figure>\n\u003cp>A magnifying glass is the simplest kind of microscope -- a convex lens with a handle attached. How much an object is magnified depends on several factors, including how curved the lens is, the distance between the lens and the object, and the distance between the lens and the user’s eye. The more curved the lens is, the higher the magnification it offers. Magnifying glasses are limited in how much they can magnify an object; usually, they can make objects look around 2-10 times larger than they actually are. More advanced microscopes combine multiple lenses to bend light in different ways in order to magnify objects even more.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>Foldscopes use salt-grain sized lenses that are highly curved. The extreme curvature of these lenses allow for high magnification. For this reason, Foldscopes don’t require long tubes of stacked lenses to magnify objects, like other microscopes do. This is why the Foldscope looks flat compared to larger, more traditional microscopes. Even though they are made out of waterproof paper and tiny lenses, Foldscopes can make objects appear 2,000 times larger than they actually are. This makes it possible to see really small things, like cells and bacteria.\u003c/p>\n\u003cp>This video is part of our \u003ca href=\"http://foldscope.woop.ie/\"> Engineering Is Diagnosing Diseases with Origami Microscopes e-book\u003c/a>. The e-book explores the science and engineering principles behind Manu Prakash’s Foldscopes project, and includes videos, interactives and media making opportunities. 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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>\u003cem>Trouble viewing the video? Stream or download it on \u003ca href=\"http://www.pbslearningmedia.org/resource/31a22583-dcee-420a-9f8f-8966c86dbf8e/science-spotlight-bending-light-with-a-new-kind-of-microscope/\"> PBS LearningMedia\u003c/a>.\u003c/em>\u003c/p>\n\u003cp>\u003cem>Article by Lauren Farrar\u003c/em>\u003c/p>\n\u003cp>Manu Prakash, a bioengineer at Stanford University, has created a fully functional microscope out of waterproof paper that uses teeny-tiny lenses to magnify objects. He calls it a Foldscope. The different parts of the microscope are printed on paper, which the user punches out and folds together. The Foldscope requires no power outlets and works with standard microscope slides.\u003c/p>\n\u003cfigure id=\"attachment_74155\" class=\"wp-caption alignleft\" style=\"max-width: 300px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Foldscope_CU_small_white.jpg\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Foldscope_CU_small_white-300x169.jpg\" alt=\"the Foldscope\" width=\"300\" height=\"169\" class=\"size-thumbnail wp-image-74155\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">A close up of the Foldscope.\u003c/figcaption>\u003c/figure>\n\u003cp>Microscopes are important tools that allow people to view objects that are so small that you wouldn’t ordinarily be able to see them, like bacteria or blood cells. From healthcare workers using microscopes to look at blood samples to diagnose diseases, to forensic scientists using them to study evidence from crime scenes, many different kinds of microscopes have been developed for a variety of purposes.\u003c/p>\n\u003cp>The Foldscope operates a lot like a traditional microscope in that it uses lenses to bend light in order to make tiny images appear larger. Light travels in waves and when it passes through media with a different density than air, such as water, the light changes direction, or bends. This is why a pencil looks bent when it is halfway submerged in a glass of water. This bending of light is known as refraction. Curved objects, such as lenses also bend light. How the light bends depends on how curved the lens is and the material it's made out of. Convex lenses, which are thicker in the middle and curve outward, can be used to magnify objects.\u003c/p>\n\u003cfigure id=\"attachment_74063\" class=\"wp-caption alignleft\" style=\"max-width: 640px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/05/Lense_schematic_small.jpg\">\u003cimg class=\"size-large wp-image-74063\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/05/Lense_schematic_small-640x360.jpg\" alt=\"schematic of a convex lens\" width=\"640\" height=\"360\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">A convex lens can bend light and make an object appear larger by creating a larger virtual image that your eye can see.\u003c/figcaption>\u003c/figure>\n\u003cp>A magnifying glass is the simplest kind of microscope -- a convex lens with a handle attached. How much an object is magnified depends on several factors, including how curved the lens is, the distance between the lens and the object, and the distance between the lens and the user’s eye. The more curved the lens is, the higher the magnification it offers. Magnifying glasses are limited in how much they can magnify an object; usually, they can make objects look around 2-10 times larger than they actually are. More advanced microscopes combine multiple lenses to bend light in different ways in order to magnify objects even more.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>Foldscopes use salt-grain sized lenses that are highly curved. The extreme curvature of these lenses allow for high magnification. For this reason, Foldscopes don’t require long tubes of stacked lenses to magnify objects, like other microscopes do. This is why the Foldscope looks flat compared to larger, more traditional microscopes. Even though they are made out of waterproof paper and tiny lenses, Foldscopes can make objects appear 2,000 times larger than they actually are. This makes it possible to see really small things, like cells and bacteria.\u003c/p>\n\u003cp>This video is part of our \u003ca href=\"http://foldscope.woop.ie/\"> Engineering Is Diagnosing Diseases with Origami Microscopes e-book\u003c/a>. The e-book explores the science and engineering principles behind Manu Prakash’s Foldscopes project, and includes videos, interactives and media making opportunities. You can find our other e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\">kqed.org/ebooks\u003c/a>.\u003c/p>\n\u003cp>\u003c/p>\n\u003cp>For more information about microscopes and lenses check out these resources from \u003ca href=\"http://www.explainthatstuff.com/\" target=\"_blank\">Explain that Stuff\u003c/a>:\u003c/p>\n\u003cul>\n\u003cli>\u003ca href=\"http://www.explainthatstuff.com/microscopes.html\">How Microscopes Work\u003c/a>\u003c/li>\n\u003cli>\u003ca href=\"http://www.explainthatstuff.com/lenses.html\">Lenses\u003c/a>\u003c/li>\n\u003c/ul>\n\n\u003c/div>\u003c/p>",
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"content": "\u003cp>\u003ca href=\"http://decompression.woop.ie/\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Decompression-Chamber-02.png\" alt=\"Decompression Chamber-02\" width=\"641\" height=\"361\" class=\"alignleft size-full wp-image-74007\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/04/Decompression-Chamber-02.png 641w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/Decompression-Chamber-02-400x225.png 400w\" sizes=\"(max-width: 641px) 100vw, 641px\">\u003c/a>\u003c/p>\n\u003cp>\u003ca href=\"http://decompression.woop.ie/\" target=\"_blank\">\u003cstrong>View the E-book\u003c/strong>\u003c/a>\u003c/p>\n\u003cp>Collecting live fish to study from near-surface waters is a fairly easy task for biologists. The same cannot be said about fish from the ocean's twilight zone, 200-500 feet beneath the surface. Fish in this region are subject to pressure changes when brought up from their deep water home, which can result in injury or death. Scientists at the \u003ca href=\"http://www.calacademy.org/\" target=\"_blank\">California Academy of Sciences\u003c/a> were eager to find a way to collect these fish without causing any harm. They needed a decompression chamber that they could bring with them on their dives and use to transport the fish. The only problem was that nothing like this existed. So they built one.\u003c/p>\n\u003cp>The new, media-rich e-book from QUEST, \u003ca href=\"http://decompression.woop.ie/\" target=\"_blank\">Engineering Is Bringing Fish Up from the Deep\u003c/a>, explores the story of how Academy scientists designed a portable decompression chamber in order to safely transport fish discovered on their expeditions to the Philippines. The book dives into the science of pressure — from the air pressure we experience every day to water pressure and the special adaptations of fish. The book also contains a career spotlight video of the Academy biologist who spearheaded the process of designing the chamber, and a hands-on activity where students of all ages can experience the effects of changing air pressure. \u003c/p>\n\u003cp>\u003ca href=\"http://decompression.woop.ie/\" target=\"_blank\">Engineering Is Bringing Fish Up from the Deep\u003c/a> is the second e-book in our \u003cstrong>Engineering Is...\u003c/strong> series and is available to view on your computer, tablet and smartphone, for free. You can find links to all of KQED's e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\" target=\"_blank\">kqed.org/ebooks\u003c/a>.\u003c/p>\n\u003cdiv class=\"clearfix\">\n\u003cp>\u003ca href=\"http://decompression.woop.ie/\" target=\"_blank\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Decompression-Chamber-105x136.jpg\" alt=\"Decompression Chamber 105x136\" width=\"105\" height=\"136\" class=\"alignleft size-full wp-image-74015\">\u003cbr>\n\u003c/a>\u003c/p>\n\u003cp>Discover how scientists engineered a way to study new fish species from the ocean’s twilight zone.\n\u003c/p>\n\u003cp>\u003ca href=\"http://decompression.woop.ie/\">\u003cimg class=\"wp-image-16316\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/E-book-button-for-Web.png\" alt=\"View it on QUEST\" width=\"110\" height=\"40\">\u003c/a>\n\u003c/p>\u003c/div>\n\u003cp>[ad fullwidth]\u003c/p>\u003cp>\u003c/p>\n",
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"excerpt": "The ocean's mysterious twilight zone is home to a wealth of fish species, many that are new to researchers. In this e-book from KQED, discover how scientists from the California Academy of Sciences engineered a device to safely transport live fish from the twilight zone back to the Academy's aquarium for further study.\r\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>\u003ca href=\"http://decompression.woop.ie/\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Decompression-Chamber-02.png\" alt=\"Decompression Chamber-02\" width=\"641\" height=\"361\" class=\"alignleft size-full wp-image-74007\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/04/Decompression-Chamber-02.png 641w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/Decompression-Chamber-02-400x225.png 400w\" sizes=\"(max-width: 641px) 100vw, 641px\">\u003c/a>\u003c/p>\n\u003cp>\u003ca href=\"http://decompression.woop.ie/\" target=\"_blank\">\u003cstrong>View the E-book\u003c/strong>\u003c/a>\u003c/p>\n\u003cp>Collecting live fish to study from near-surface waters is a fairly easy task for biologists. The same cannot be said about fish from the ocean's twilight zone, 200-500 feet beneath the surface. Fish in this region are subject to pressure changes when brought up from their deep water home, which can result in injury or death. Scientists at the \u003ca href=\"http://www.calacademy.org/\" target=\"_blank\">California Academy of Sciences\u003c/a> were eager to find a way to collect these fish without causing any harm. They needed a decompression chamber that they could bring with them on their dives and use to transport the fish. The only problem was that nothing like this existed. So they built one.\u003c/p>\n\u003cp>The new, media-rich e-book from QUEST, \u003ca href=\"http://decompression.woop.ie/\" target=\"_blank\">Engineering Is Bringing Fish Up from the Deep\u003c/a>, explores the story of how Academy scientists designed a portable decompression chamber in order to safely transport fish discovered on their expeditions to the Philippines. The book dives into the science of pressure — from the air pressure we experience every day to water pressure and the special adaptations of fish. The book also contains a career spotlight video of the Academy biologist who spearheaded the process of designing the chamber, and a hands-on activity where students of all ages can experience the effects of changing air pressure. \u003c/p>\n\u003cp>\u003ca href=\"http://decompression.woop.ie/\" target=\"_blank\">Engineering Is Bringing Fish Up from the Deep\u003c/a> is the second e-book in our \u003cstrong>Engineering Is...\u003c/strong> series and is available to view on your computer, tablet and smartphone, for free. You can find links to all of KQED's e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\" target=\"_blank\">kqed.org/ebooks\u003c/a>.\u003c/p>\n\u003cdiv class=\"clearfix\">\n\u003cp>\u003ca href=\"http://decompression.woop.ie/\" target=\"_blank\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Decompression-Chamber-105x136.jpg\" alt=\"Decompression Chamber 105x136\" width=\"105\" height=\"136\" class=\"alignleft size-full wp-image-74015\">\u003cbr>\n\u003c/a>\u003c/p>\n\u003cp>Discover how scientists engineered a way to study new fish species from the ocean’s twilight zone.\n\u003c/p>\n\u003cp>\u003ca href=\"http://decompression.woop.ie/\">\u003cimg class=\"wp-image-16316\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/E-book-button-for-Web.png\" alt=\"View it on QUEST\" width=\"110\" height=\"40\">\u003c/a>\n\u003c/p>\u003c/div>\n\u003cp>\u003c/p>\u003c/div>",
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"disqusTitle": "Activity: Air Pressure, It's in the Bag",
"title": "Activity: Air Pressure, It's in the Bag",
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"content": "\u003cp>\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Activity_image.jpg\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Activity_image.jpg\" alt=\"Hands-on activity title\" width=\"640\" height=\"360\" class=\"aligncenter size-full wp-image-73989\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/04/Activity_image.jpg 640w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/Activity_image-400x225.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\">\u003c/a>\u003c/p>\n\u003cp>\u003cem> Activity written by Kathryn Danielson and Clea Matson from \u003ca href=\"http://www.calacademy.org/\"> California Academy of Sciences \u003c/a>\u003c/em>\u003c/p>\n\u003cp>\u003cstrong>Air Pressure Activity \u003c/strong>\u003cbr>\nIn this activity, students are asked to create a change in air pressure using a garbage bag and vacuum cleaner, then create an illustration, model or concept map that explains what is happening. Students can also capture the process in “before and after” videos or photos, then share the videos and/or their models on the \u003ca href=\"http://blogs.kqed.org/education/submit-your-story/\">KQED website \u003c/a> or with @KQEDedspace via Vine, Instagram or Twitter with the hashtag #kqedpressure. Visit \u003ca href=\"http://blogs.kqed.org/education/category/community-created-content/\"> KQED's community voices\u003c/a> to see experiences and ideas others have posted!\u003c/p>\n\u003cp>\u003cstrong>Objective\u003c/strong>\u003cbr>\nIn this activity, students will:\u003c/p>\n\u003cul>\n\u003cli>create a change in pressure that allows them to experience the force of atmospheric pressure (shrink-wrapping);\u003c/li>\n\u003cli>create a model that explains this phenomenon;\u003c/li>\n\u003cli>receive comments and questions about their model to co-construct and revise their ideas to help them better understand this phenomenon; and\u003c/li>\n\u003cli>share their models, pictures and videos on social media.\u003c/li>\n\u003c/ul>\n\u003cp>\u003cstrong>Materials\u003c/strong>\u003c/p>\n\u003cul>\n\u003cli>1 large contractor trash bag\u003c/li>\n\u003cli>1 household vacuum cleaner with a hose attachment\u003c/li>\n\u003cli>scratch paper\u003c/li>\n\u003cli>pencils\u003c/li>\n\u003cli>2 sticky-note pads (different colors)\u003c/li>\n\u003cli>camera for capturing photos or video (optional)\u003c/li>\n\u003c/ul>\n\u003cp>\u003cstrong>Background\u003c/strong>\u003cbr>\n\u003cem>What is air pressure?\u003c/em>\u003cbr>\nAlthough we don’t usually notice air pressure, the molecules that make up the surrounding air are constantly colliding with us from all different directions. Air pressure is the force of these collisions per unit area. In fact, we often measure pressure in pounds per square inch (psi). This activity helps students understand pressure and changes in pressure by experiencing air pressure in a new way.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>\u003cem>What causes a person to be “shrink-wrapped” when the vacuum is turned on?\u003c/em>\u003cbr>\nIn this activity, participants climb into a large trash bag (with their head and neck remaining outside!) and remove the air from inside of the bag using a household vacuum cleaner. Before the vacuum cleaner is turned on, there is an equal density of air molecules inside and outside the bag. As described above, the air molecules are colliding with the inside and outside of the bag with equal force per unit area.\u003c/p>\n\u003cp>When the vacuum cleaner is turned on, \u003cem>most\u003c/em> of the air is removed from inside the bag. When the air inside the bag is removed, there is no longer equilibrium. The force of the air molecules colliding with the inside of the bag is now close to zero, but the air molecules colliding with the outside of the bag have the same force per unit area as before. The air pressure that is outside of the bag (atmospheric pressure is about 14.7 psi on the surface of the earth) is now unopposed by an equal force of air pressure inside the bag. Thus, the bag is not being \u003cem>sucked\u003c/em> onto your body by the vacuum cleaner; rather, the bag is being \u003cem>pushed\u003c/em> onto your body by the air outside of the bag.\u003c/p>\n\u003cp>\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Air_pressure_model.png\">\u003cimg class=\"aligncenter size-full wp-image-73973\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Air_pressure_model.png\" alt=\"Air pressure model\" width=\"1106\" height=\"828\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/04/Air_pressure_model.png 1106w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/Air_pressure_model-400x299.png 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/Air_pressure_model-800x599.png 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/Air_pressure_model-960x719.png 960w\" sizes=\"(max-width: 1106px) 100vw, 1106px\">\u003c/a>\u003c/p>\n\u003cp>\u003cem>How is this related to the pressure change that a fish might feel when coming up from the “twilight zone”?\u003c/em>\u003cbr>\nThe fish that come up from the deep water of the “twilight zone” experience a similarly dramatic change in pressure. Many fish have a gas-filled organ, called a swim bladder, which helps fish to stay buoyant in the water. Fish that live deep in the ocean have swim bladders with a certain density of air inside them. When these fish are brought up from the deep water to the shallower water at the surface, the pressure exerted by the surrounding water on the swim bladder decreases quickly. There is no longer equilibrium between the pressure of the air inside the swim bladder and the surrounding water. The air inside the swim bladder presses \u003cem>out\u003c/em>, similar to the way the air outside of the trash bag pushes \u003cem>in\u003c/em> on your body.\u003c/p>\n\u003cp>\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/swim_bladder_model.png\">\u003cimg class=\"aligncenter size-full wp-image-73975\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/swim_bladder_model.png\" alt=\"swim bladder model\" width=\"1125\" height=\"844\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/04/swim_bladder_model.png 1125w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/swim_bladder_model-400x300.png 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/swim_bladder_model-800x600.png 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/swim_bladder_model-960x720.png 960w\" sizes=\"(max-width: 1125px) 100vw, 1125px\">\u003c/a>\u003c/p>\n\u003cp>\u003cstrong>Activity Instructions (for Educators)\u003c/strong>\u003c/p>\n\u003cp>NOTE: ADULT SUPERVISION STRONGLY SUGGESTED\u003c/p>\n\u003col>\n\u003cli>Show the materials to the class and explain that they will be exploring the concept of pressure in this activity.\u003c/li>\n\u003cli>Ask for two volunteers: the first volunteer will sit inside the trash bag and the second volunteer will help to create the vacuum inside the bag.\u003c/li>\n\u003cli>Have the first volunteer kneel or sit cross-legged inside the trash bag. Have the other volunteer help to bring the bag over their shoulders. The bag should come up to their neck, but not be tight around the neck. DO NOT COVER HEAD WITH GARBAGE BAG. The teacher should operate the vacuum cleaner.\u003c/li>\n\u003cli>Instruct the volunteer inside the bag to hold the hose of the vacuum cleaner inside the bag, pointed away from their body, and to cup their hands around the vacuum-cleaner hose so the bag or their clothes don’t get sucked into the hose.\u003c/li>\n\u003cli>Count down from 5 and turn on the vacuum cleaner.\u003c/li>\n\u003cli>Observe the shrink-wrap process.\u003cbr>\n*Quick Tip: if the bag doesn't tightly shrink-wrap to the person inside the bag, have the second volunteer make sure that the opening of the bag is closed around the person’s body and that air is only moving through the vacuum cleaner hose, unobstructed by the bag or clothing. Students should feel a tight squeeze from the bag, but if they are uncomfortable, you can turn off the vacuum and the bag will immediately stop squeezing.\n\u003c/li>\n\u003cli>Have as many students as possible experience the shrink-wrap process by sitting inside the bag.\u003c/li>\n\u003cli>Once students have experienced or observed the shrink-wrap process, have them spend five minutes drawing a conceptual model that explains what they observed.\u003cbr>\n*Students should draw two pictures: the first should depict what’s happening before the vacuum cleaner gets turned on, and the second should show what’s happening after the vacuum cleaner is on and their body is shrink-wrapped.\u003cbr>\n*Encourage students to include labels, arrows or anything else that helps them illustrate what they observed.\n\u003c/li>\n\u003cli>Have students partner up to discuss their conceptual models. Students should ask questions about their partner’s model and have a chance to respond to their partner’s questions. After discussing, give students time to revise their models and incorporate any new ideas that came from the discussion.\u003c/li>\n\u003cli>After revising their models this first time, instruct students to display their drawings on their desks for a gallery walk. The purpose of the gallery walk is for the whole class to see all of the models, ask questions and provide feedback. To do this, distribute two colors of sticky notes:\u003cbr>\n *Color 1 = questions or clarifications about the model\u003cbr>\n *Color 2 = positive comments or agreement about the model\n\u003c/li>\n\u003cli>Students should circulate through the classroom and comment on the models using the colored sticky notes.\u003c/li>\n\u003cli>Have students return to their seats and read their notes. Give students a final chance to revise their models based on their peers’ comments or questions.\u003c/li>\n\u003cli>Conclude the activity by leading a class discussion to explain the science of the shrink-wrap activity. To do this, you can draw a scientifically accurate model on the board. This is also the chance to address any misconceptions about what’s causing the bag to shrink-wrap. Some other guiding questions for the whole class discussion might include the following:\u003cbr>\n *Using a similar setup, what other ideas for experiments do students have?\u003cbr>\n*How is this activity related to the pressure change that a fish might feel when coming up from the “twilight zone”?\n\u003c/li>\n\u003cli>Are you curious about what other people think about this phenomenon? Students can share their experiences with others all over the world by posting videos, photos or their models on the \u003ca href=\"http://blogs.kqed.org/education/submit-your-story/\">KQED website\u003c/a> and see what others have posted \u003ca href=\"http://blogs.kqed.org/education/category/community-created-content/\">here\u003c/a>. Or share them with @KQEDedspace via Vine, Instagram or Twitter with the hashtag #kqedpressure.\u003c/li>\n\u003c/ol>\n\u003cp>[ad floatright]\u003c/p>\n\u003cp>This activity is part of our \u003cstrong>\u003ca href=\"http://decompression.woop.ie/\" target=\"_blank\">Engineering Is: Bringing Fish Up from the Deep\u003c/a>\u003c/strong> e-book. The e-book explores the science and engineering principles behind the California Academy of Sciences’ portable decompression chamber, and includes videos, interactives and media making opportunities. You can find our other e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\"> kqed.org/ebooks\u003c/a>.\u003c/p>\n\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Activity_image.jpg\">\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Activity_image.jpg\" alt=\"Hands-on activity title\" width=\"640\" height=\"360\" class=\"aligncenter size-full wp-image-73989\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/04/Activity_image.jpg 640w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/Activity_image-400x225.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\">\u003c/a>\u003c/p>\n\u003cp>\u003cem> Activity written by Kathryn Danielson and Clea Matson from \u003ca href=\"http://www.calacademy.org/\"> California Academy of Sciences \u003c/a>\u003c/em>\u003c/p>\n\u003cp>\u003cstrong>Air Pressure Activity \u003c/strong>\u003cbr>\nIn this activity, students are asked to create a change in air pressure using a garbage bag and vacuum cleaner, then create an illustration, model or concept map that explains what is happening. Students can also capture the process in “before and after” videos or photos, then share the videos and/or their models on the \u003ca href=\"http://blogs.kqed.org/education/submit-your-story/\">KQED website \u003c/a> or with @KQEDedspace via Vine, Instagram or Twitter with the hashtag #kqedpressure. Visit \u003ca href=\"http://blogs.kqed.org/education/category/community-created-content/\"> KQED's community voices\u003c/a> to see experiences and ideas others have posted!\u003c/p>\n\u003cp>\u003cstrong>Objective\u003c/strong>\u003cbr>\nIn this activity, students will:\u003c/p>\n\u003cul>\n\u003cli>create a change in pressure that allows them to experience the force of atmospheric pressure (shrink-wrapping);\u003c/li>\n\u003cli>create a model that explains this phenomenon;\u003c/li>\n\u003cli>receive comments and questions about their model to co-construct and revise their ideas to help them better understand this phenomenon; and\u003c/li>\n\u003cli>share their models, pictures and videos on social media.\u003c/li>\n\u003c/ul>\n\u003cp>\u003cstrong>Materials\u003c/strong>\u003c/p>\n\u003cul>\n\u003cli>1 large contractor trash bag\u003c/li>\n\u003cli>1 household vacuum cleaner with a hose attachment\u003c/li>\n\u003cli>scratch paper\u003c/li>\n\u003cli>pencils\u003c/li>\n\u003cli>2 sticky-note pads (different colors)\u003c/li>\n\u003cli>camera for capturing photos or video (optional)\u003c/li>\n\u003c/ul>\n\u003cp>\u003cstrong>Background\u003c/strong>\u003cbr>\n\u003cem>What is air pressure?\u003c/em>\u003cbr>\nAlthough we don’t usually notice air pressure, the molecules that make up the surrounding air are constantly colliding with us from all different directions. Air pressure is the force of these collisions per unit area. In fact, we often measure pressure in pounds per square inch (psi). This activity helps students understand pressure and changes in pressure by experiencing air pressure in a new way.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>\u003cem>What causes a person to be “shrink-wrapped” when the vacuum is turned on?\u003c/em>\u003cbr>\nIn this activity, participants climb into a large trash bag (with their head and neck remaining outside!) and remove the air from inside of the bag using a household vacuum cleaner. Before the vacuum cleaner is turned on, there is an equal density of air molecules inside and outside the bag. As described above, the air molecules are colliding with the inside and outside of the bag with equal force per unit area.\u003c/p>\n\u003cp>When the vacuum cleaner is turned on, \u003cem>most\u003c/em> of the air is removed from inside the bag. When the air inside the bag is removed, there is no longer equilibrium. The force of the air molecules colliding with the inside of the bag is now close to zero, but the air molecules colliding with the outside of the bag have the same force per unit area as before. The air pressure that is outside of the bag (atmospheric pressure is about 14.7 psi on the surface of the earth) is now unopposed by an equal force of air pressure inside the bag. Thus, the bag is not being \u003cem>sucked\u003c/em> onto your body by the vacuum cleaner; rather, the bag is being \u003cem>pushed\u003c/em> onto your body by the air outside of the bag.\u003c/p>\n\u003cp>\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Air_pressure_model.png\">\u003cimg class=\"aligncenter size-full wp-image-73973\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/Air_pressure_model.png\" alt=\"Air pressure model\" width=\"1106\" height=\"828\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/04/Air_pressure_model.png 1106w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/Air_pressure_model-400x299.png 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/Air_pressure_model-800x599.png 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/Air_pressure_model-960x719.png 960w\" sizes=\"(max-width: 1106px) 100vw, 1106px\">\u003c/a>\u003c/p>\n\u003cp>\u003cem>How is this related to the pressure change that a fish might feel when coming up from the “twilight zone”?\u003c/em>\u003cbr>\nThe fish that come up from the deep water of the “twilight zone” experience a similarly dramatic change in pressure. Many fish have a gas-filled organ, called a swim bladder, which helps fish to stay buoyant in the water. Fish that live deep in the ocean have swim bladders with a certain density of air inside them. When these fish are brought up from the deep water to the shallower water at the surface, the pressure exerted by the surrounding water on the swim bladder decreases quickly. There is no longer equilibrium between the pressure of the air inside the swim bladder and the surrounding water. The air inside the swim bladder presses \u003cem>out\u003c/em>, similar to the way the air outside of the trash bag pushes \u003cem>in\u003c/em> on your body.\u003c/p>\n\u003cp>\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/swim_bladder_model.png\">\u003cimg class=\"aligncenter size-full wp-image-73975\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/04/swim_bladder_model.png\" alt=\"swim bladder model\" width=\"1125\" height=\"844\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/04/swim_bladder_model.png 1125w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/swim_bladder_model-400x300.png 400w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/swim_bladder_model-800x600.png 800w, https://ww2.kqed.org/app/uploads/sites/39/2015/04/swim_bladder_model-960x720.png 960w\" sizes=\"(max-width: 1125px) 100vw, 1125px\">\u003c/a>\u003c/p>\n\u003cp>\u003cstrong>Activity Instructions (for Educators)\u003c/strong>\u003c/p>\n\u003cp>NOTE: ADULT SUPERVISION STRONGLY SUGGESTED\u003c/p>\n\u003col>\n\u003cli>Show the materials to the class and explain that they will be exploring the concept of pressure in this activity.\u003c/li>\n\u003cli>Ask for two volunteers: the first volunteer will sit inside the trash bag and the second volunteer will help to create the vacuum inside the bag.\u003c/li>\n\u003cli>Have the first volunteer kneel or sit cross-legged inside the trash bag. Have the other volunteer help to bring the bag over their shoulders. The bag should come up to their neck, but not be tight around the neck. DO NOT COVER HEAD WITH GARBAGE BAG. The teacher should operate the vacuum cleaner.\u003c/li>\n\u003cli>Instruct the volunteer inside the bag to hold the hose of the vacuum cleaner inside the bag, pointed away from their body, and to cup their hands around the vacuum-cleaner hose so the bag or their clothes don’t get sucked into the hose.\u003c/li>\n\u003cli>Count down from 5 and turn on the vacuum cleaner.\u003c/li>\n\u003cli>Observe the shrink-wrap process.\u003cbr>\n*Quick Tip: if the bag doesn't tightly shrink-wrap to the person inside the bag, have the second volunteer make sure that the opening of the bag is closed around the person’s body and that air is only moving through the vacuum cleaner hose, unobstructed by the bag or clothing. Students should feel a tight squeeze from the bag, but if they are uncomfortable, you can turn off the vacuum and the bag will immediately stop squeezing.\n\u003c/li>\n\u003cli>Have as many students as possible experience the shrink-wrap process by sitting inside the bag.\u003c/li>\n\u003cli>Once students have experienced or observed the shrink-wrap process, have them spend five minutes drawing a conceptual model that explains what they observed.\u003cbr>\n*Students should draw two pictures: the first should depict what’s happening before the vacuum cleaner gets turned on, and the second should show what’s happening after the vacuum cleaner is on and their body is shrink-wrapped.\u003cbr>\n*Encourage students to include labels, arrows or anything else that helps them illustrate what they observed.\n\u003c/li>\n\u003cli>Have students partner up to discuss their conceptual models. Students should ask questions about their partner’s model and have a chance to respond to their partner’s questions. After discussing, give students time to revise their models and incorporate any new ideas that came from the discussion.\u003c/li>\n\u003cli>After revising their models this first time, instruct students to display their drawings on their desks for a gallery walk. The purpose of the gallery walk is for the whole class to see all of the models, ask questions and provide feedback. To do this, distribute two colors of sticky notes:\u003cbr>\n *Color 1 = questions or clarifications about the model\u003cbr>\n *Color 2 = positive comments or agreement about the model\n\u003c/li>\n\u003cli>Students should circulate through the classroom and comment on the models using the colored sticky notes.\u003c/li>\n\u003cli>Have students return to their seats and read their notes. Give students a final chance to revise their models based on their peers’ comments or questions.\u003c/li>\n\u003cli>Conclude the activity by leading a class discussion to explain the science of the shrink-wrap activity. To do this, you can draw a scientifically accurate model on the board. This is also the chance to address any misconceptions about what’s causing the bag to shrink-wrap. Some other guiding questions for the whole class discussion might include the following:\u003cbr>\n *Using a similar setup, what other ideas for experiments do students have?\u003cbr>\n*How is this activity related to the pressure change that a fish might feel when coming up from the “twilight zone”?\n\u003c/li>\n\u003cli>Are you curious about what other people think about this phenomenon? Students can share their experiences with others all over the world by posting videos, photos or their models on the \u003ca href=\"http://blogs.kqed.org/education/submit-your-story/\">KQED website\u003c/a> and see what others have posted \u003ca href=\"http://blogs.kqed.org/education/category/community-created-content/\">here\u003c/a>. Or share them with @KQEDedspace via Vine, Instagram or Twitter with the hashtag #kqedpressure.\u003c/li>\n\u003c/ol>\n\u003cp>\u003c/p>\u003c/div>",
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"disqusTitle": "Science Spotlight: Fish, Swim Bladders and Boyle's Law",
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"content": "\u003cp>Trouble viewing the video? Download or stream it on\u003ca href=\"http://www.pbslearningmedia.org/resource/b6da2a56-eab8-4829-bdb1-956cf48be126/science-spotlight-fish-swim-bladders-and-boyles-law/\"> PBS LearningMedia\u003c/a>.\u003c/p>\n\u003cp>\u003cem>Article by Lauren Farrar\u003c/em>\u003c/p>\n\u003cp>Scientists at the \u003ca href=\"http://www.calacademy.org/\"> California Academy of Sciences\u003c/a> have recently \u003ca href=\"http://ww2.kqed.org/quest/video/bringing-fish-up-from-the-deep/\"> engineered a device \u003c/a> that allows them to collect newly-discovered fish species from the ocean’s “twilight zone” and safely bring them up to the surface to study. Prior to this invention, it was difficult for scientists to study fish in this region because many fish can’t handle the rapid change in pressure they experience when being transported to the surface.\u003c/p>\n\u003cp>In water, pressure increases with depth. When you are submerged in a body of water, like the ocean, you experience pressure from the force of the water surrounding you. At the surface, the pressure from the water is the same as the pressure from the air. However, as you descend, pressure increases because there is more water above you. The weight from all that water creates a greater force pushing against you, therefore you experience greater pressure.\u003c/p>\n\u003cp>Why does this pressure matter for fish?\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>Many fish have a gas-filled organ, called a “swim bladder,” that helps them maintain their buoyancy. Because the swim bladder is filled with gas, it’s hard for fish to handle quick changes in pressure. Boyle’s Law explains the relationship between pressure and volume of a gas. As pressure increases, the volume of a gas decreases; and, as pressure decreases, the volume of a gas increases.\u003c/p>\n\u003cp>So, if scientists bring fish from the twilight zone—where the pressure is high—to the surface, where the pressure is lower, the volume of the gases in the swim bladder increases causing the swim bladder to expand. The swim bladder can expand so much that it can crush other vital organs inside the fish and cause the fish to die.\u003c/p>\n\u003cp>In the above video, Matt Wandell, a biologist at the California Academy of Sciences, demonstrates how pressure affects a fish’s swim bladder. Wandell was among one of the scientists that helped engineer a \u003ca href=\"http://ww2.kqed.org/quest/video/bringing-fish-up-from-the-deep/\">portable fish decompression chamber \u003c/a> to safely bring fish up from the twilight zone. This device maintains high pressures while fish ascend to the surface. Once at the surface, the chamber is hooked up to a pump that slowly decreases the pressure in the chamber. This allows enough time for the fish to regulate the gas in their swim bladders and adjust to life at a lower pressure.\u003c/p>\n\u003cp>\u003c/p>\n\u003cp>This Science Spotlight is a companion video to \u003ca href=\"http://ww2.kqed.org/quest/video/bringing-fish-up-from-the-deep/\"> Bringing Fish Up from the Deep \u003c/a> and is part of our \u003ca href=\"http://learning.kqed.org/ebook/decompression\"> Engineering Is: Bringing Fish Up from the Deep\u003c/a> e-book. The e-book explores the science and engineering principles behind the California Academy of Sciences’ portable decompression chamber, and includes videos, interactives and media making opportunities. You can find our other e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\"> kqed.org/ebooks\u003c/a>.\u003c/p>\n\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>Trouble viewing the video? Download or stream it on\u003ca href=\"http://www.pbslearningmedia.org/resource/b6da2a56-eab8-4829-bdb1-956cf48be126/science-spotlight-fish-swim-bladders-and-boyles-law/\"> PBS LearningMedia\u003c/a>.\u003c/p>\n\u003cp>\u003cem>Article by Lauren Farrar\u003c/em>\u003c/p>\n\u003cp>Scientists at the \u003ca href=\"http://www.calacademy.org/\"> California Academy of Sciences\u003c/a> have recently \u003ca href=\"http://ww2.kqed.org/quest/video/bringing-fish-up-from-the-deep/\"> engineered a device \u003c/a> that allows them to collect newly-discovered fish species from the ocean’s “twilight zone” and safely bring them up to the surface to study. Prior to this invention, it was difficult for scientists to study fish in this region because many fish can’t handle the rapid change in pressure they experience when being transported to the surface.\u003c/p>\n\u003cp>In water, pressure increases with depth. When you are submerged in a body of water, like the ocean, you experience pressure from the force of the water surrounding you. At the surface, the pressure from the water is the same as the pressure from the air. However, as you descend, pressure increases because there is more water above you. The weight from all that water creates a greater force pushing against you, therefore you experience greater pressure.\u003c/p>\n\u003cp>Why does this pressure matter for fish?\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>Many fish have a gas-filled organ, called a “swim bladder,” that helps them maintain their buoyancy. Because the swim bladder is filled with gas, it’s hard for fish to handle quick changes in pressure. Boyle’s Law explains the relationship between pressure and volume of a gas. As pressure increases, the volume of a gas decreases; and, as pressure decreases, the volume of a gas increases.\u003c/p>\n\u003cp>So, if scientists bring fish from the twilight zone—where the pressure is high—to the surface, where the pressure is lower, the volume of the gases in the swim bladder increases causing the swim bladder to expand. The swim bladder can expand so much that it can crush other vital organs inside the fish and cause the fish to die.\u003c/p>\n\u003cp>In the above video, Matt Wandell, a biologist at the California Academy of Sciences, demonstrates how pressure affects a fish’s swim bladder. Wandell was among one of the scientists that helped engineer a \u003ca href=\"http://ww2.kqed.org/quest/video/bringing-fish-up-from-the-deep/\">portable fish decompression chamber \u003c/a> to safely bring fish up from the twilight zone. This device maintains high pressures while fish ascend to the surface. Once at the surface, the chamber is hooked up to a pump that slowly decreases the pressure in the chamber. This allows enough time for the fish to regulate the gas in their swim bladders and adjust to life at a lower pressure.\u003c/p>\n\u003cp>\u003c/p>\n\u003cp>This Science Spotlight is a companion video to \u003ca href=\"http://ww2.kqed.org/quest/video/bringing-fish-up-from-the-deep/\"> Bringing Fish Up from the Deep \u003c/a> and is part of our \u003ca href=\"http://learning.kqed.org/ebook/decompression\"> Engineering Is: Bringing Fish Up from the Deep\u003c/a> e-book. The e-book explores the science and engineering principles behind the California Academy of Sciences’ portable decompression chamber, and includes videos, interactives and media making opportunities. You can find our other e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\"> kqed.org/ebooks\u003c/a>.\u003c/p>\n\n\u003c/div>\u003c/p>",
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"content": "\u003cp>\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/02/Darfur-Stoves-E-book-Cover-640x360.png\" alt=\"Darfur Stoves E-book Cover 640x360\" width=\"640\" height=\"360\" class=\"alignleft size-full wp-image-73849\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/02/Darfur-Stoves-E-book-Cover-640x360.png 640w, https://ww2.kqed.org/app/uploads/sites/39/2015/02/Darfur-Stoves-E-book-Cover-640x360-400x225.png 400w\" sizes=\"(max-width: 640px) 100vw, 640px\">\u003c/p>\n\u003cp>When you turn on your stovetop, do you ever wonder how efficient it is at heating your pot and the food inside? While that may not be top of mind for you, the efficiency of cookstoves has a huge impact on the quality of life--from safety issues to health impacts--of many people around the world. Engineers at Lawrence Berkeley National Laboratory have been working for more than a decade to build a better cookstove. \u003c/p>\n\u003cp>This story of designing a new stove for families in developing countries is the first in KQED’s new \u003cstrong>Engineering Is…\u003c/strong> series of e-books that focus on the intersection of engineering and science. The new national science education standards, the Next Generation Science Standards, emphasize engineering design as an essential part of science education. With the “Engineering Is…” e-books, middle- and high-school students can learn about scientists and engineers working together across disciplines to investigate issues, make discoveries and develop solutions. \u003c/p>\n\u003cp>The new e-book, \u003ca href=\"http://learning.kqed.org/ebook/cookstoves/\" target=\"_blank\">\u003cstrong>Engineering Is Saving the World with Cookstoves\u003c/strong>\u003c/a>, tells the story of the need for a new design for cookstoves in Darfur and how researchers have worked to make that happen. Videos, animations and interactive graphics explain the design process, and provide a deep dive into science concepts, like combustion. The book also contains a career spotlight video of an engineer that is working on the new stoves, and video profiles of others helping with the project. Students across the country can engage in discussion with each other about indoor air pollution in the developing world via Twitter through an embedded social media project. There is also an opportunity for students to interview engineers in their own communities, and create and share media pieces based on those interviews.\u003c/p>\n\u003cp>\u003ca href=\"http://learning.kqed.org/ebook/cookstoves/\" target=\"_blank\">\u003cstrong>Engineering Is Saving the World with Cookstoves\u003c/strong>\u003c/a> is available to view on your computer, tablet and smartphone, for free. You can find links to all of KQED’s e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\" target=\"_blank\">kqed.org/ebooks\u003c/a>. \u003c/p>\n\u003cdiv class=\"clearfix\">\n\u003cp>\u003cimg class=\"alignleft size-full wp-image-16315\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/Darfur-Stoves-E-book-Cover.png\" alt=\"cookstoves\" width=\"105\" height=\"136\">\u003c/p>\n\u003cp>Learn how researchers designed a new, more efficient cookstove to improve the quality of life for families in Darfur.\u003c/p>\n\u003cp>\u003ca href=\"http://learning.kqed.org/ebook/cookstoves/\">\u003cimg class=\"wp-image-16316\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/Download_on_iTunes_Badge_US-UK_110x40_1004.png\" alt=\"View it on QUEST\" width=\"110\" height=\"40\">\u003c/a> \u003ca href=\"https://itunes.apple.com/us/book/engineering-is-saving-world/id1012726448?mt=13\">\u003cimg class=\"wp-image-11945\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/E-book-button-for-Web.png\" alt=\"Download on iBooks\" width=\"110\" height=\"40\">\u003c/a>\u003c/p>\n\u003c/div>\n\u003cp>[ad fullwidth]\u003c/p>\u003cp>\u003c/p>\n",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>\u003cimg src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/02/Darfur-Stoves-E-book-Cover-640x360.png\" alt=\"Darfur Stoves E-book Cover 640x360\" width=\"640\" height=\"360\" class=\"alignleft size-full wp-image-73849\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2015/02/Darfur-Stoves-E-book-Cover-640x360.png 640w, https://ww2.kqed.org/app/uploads/sites/39/2015/02/Darfur-Stoves-E-book-Cover-640x360-400x225.png 400w\" sizes=\"(max-width: 640px) 100vw, 640px\">\u003c/p>\n\u003cp>When you turn on your stovetop, do you ever wonder how efficient it is at heating your pot and the food inside? While that may not be top of mind for you, the efficiency of cookstoves has a huge impact on the quality of life--from safety issues to health impacts--of many people around the world. Engineers at Lawrence Berkeley National Laboratory have been working for more than a decade to build a better cookstove. \u003c/p>\n\u003cp>This story of designing a new stove for families in developing countries is the first in KQED’s new \u003cstrong>Engineering Is…\u003c/strong> series of e-books that focus on the intersection of engineering and science. The new national science education standards, the Next Generation Science Standards, emphasize engineering design as an essential part of science education. With the “Engineering Is…” e-books, middle- and high-school students can learn about scientists and engineers working together across disciplines to investigate issues, make discoveries and develop solutions. \u003c/p>\n\u003cp>The new e-book, \u003ca href=\"http://learning.kqed.org/ebook/cookstoves/\" target=\"_blank\">\u003cstrong>Engineering Is Saving the World with Cookstoves\u003c/strong>\u003c/a>, tells the story of the need for a new design for cookstoves in Darfur and how researchers have worked to make that happen. Videos, animations and interactive graphics explain the design process, and provide a deep dive into science concepts, like combustion. The book also contains a career spotlight video of an engineer that is working on the new stoves, and video profiles of others helping with the project. Students across the country can engage in discussion with each other about indoor air pollution in the developing world via Twitter through an embedded social media project. There is also an opportunity for students to interview engineers in their own communities, and create and share media pieces based on those interviews.\u003c/p>\n\u003cp>\u003ca href=\"http://learning.kqed.org/ebook/cookstoves/\" target=\"_blank\">\u003cstrong>Engineering Is Saving the World with Cookstoves\u003c/strong>\u003c/a> is available to view on your computer, tablet and smartphone, for free. You can find links to all of KQED’s e-books at \u003ca href=\"http://blogs.kqed.org/education/e-books/\" target=\"_blank\">kqed.org/ebooks\u003c/a>. \u003c/p>\n\u003cdiv class=\"clearfix\">\n\u003cp>\u003cimg class=\"alignleft size-full wp-image-16315\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/Darfur-Stoves-E-book-Cover.png\" alt=\"cookstoves\" width=\"105\" height=\"136\">\u003c/p>\n\u003cp>Learn how researchers designed a new, more efficient cookstove to improve the quality of life for families in Darfur.\u003c/p>\n\u003cp>\u003ca href=\"http://learning.kqed.org/ebook/cookstoves/\">\u003cimg class=\"wp-image-16316\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/Download_on_iTunes_Badge_US-UK_110x40_1004.png\" alt=\"View it on QUEST\" width=\"110\" height=\"40\">\u003c/a> \u003ca href=\"https://itunes.apple.com/us/book/engineering-is-saving-world/id1012726448?mt=13\">\u003cimg class=\"wp-image-11945\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2015/12/E-book-button-for-Web.png\" alt=\"Download on iBooks\" width=\"110\" height=\"40\">\u003c/a>\u003c/p>\n\u003c/div>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cp>\u003cem>This video story was originally produced by\u003ca href=\"http://ww2.kqed.org/quest/author/amy-miller/\"> Amy Miller \u003c/a>and was updated by \u003ca href=\"http://ww2.kqed.org/quest/author/lisalanders/\">Lisa Landers \u003c/a> and Arwen Curry.\u003c/em>\u003c/p>\n\u003cp>In 2003, following a series of tribal and political uprisings, the Sudanese government sanctioned violent militias, called the Janjaweed, to destroy entire villages in the western province of Darfur. \u003ca href=\"http://www.trust.org/spotlight/Darfur-conflict\">Since then\u003c/a>, a brutal campaign has targeted civilians, killing more than 400,000 people and fundamentally altering their way of life. More than a decade after the beginning of the conflict, 1.4 million people still live in densely populated refugee camps.\u003c/p>\n\u003cp>During the first years of displacement, women had to walk for up to seven hours outside the safety of the camps to collect firewood for cooking, putting them at risk for violent attacks. In 2005, the U.S. government approached \u003ca href=\"http://energy.lbl.gov/staff/gadgil/agadgil.html\">Ashok Gadgil\u003c/a>, director of Lawrence Berkeley National Lab's Environmental Energy Technologies Division, in search of a hands-on solution to this devastating problem.\u003c/p>\n\u003cfigure id=\"attachment_73070\" class=\"wp-caption alignleft\" style=\"max-width: 300px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/Ashok_IMG_0048_800.jpg\">\u003cimg class=\"wp-image-73070 size-thumbnail\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/Ashok_IMG_0048_800-300x169.jpg\" alt=\"Engineer Ashok Gadgil visited Darfur in 2005 to consult with Darfuri women about their cooking methods.<br /> Courtesy Lawrence Berkeley National Laboratory.\" width=\"300\" height=\"169\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">Engineer Ashok Gadgil visited Darfur in 2005 to consult with Darfuri women about their cooking methods.\u003cbr> Courtesy Lawrence Berkeley National Laboratory.\u003c/figcaption>\u003c/figure>\n\u003cp>At first, said Gadgil, he didn’t know how he, as an engineer, could hope to ease the refugee crisis. But when he learned that women in the camps cooked using traditional methods in which their cooking pots sit atop three stones, with a fire burning in the middle, he saw the spark of a solution.\u003c/p>\n\u003cp>“A three-stone fire is the least efficient way to take energy from the fuel wood and turn it into heat into the pot,” said Gadgil.\u003c/p>\n\u003cp>[ad fullwidth]\u003c/p>\n\u003cp>The efficiency of a typical three-stone fire is 5 to 6 percent. Poor combustion of the wood means that the fire’s chemical energy isn’t transferred to heat, and what heat there is transfers poorly into the pot.\u003c/p>\n\u003cp>“So I figured I should be able to design a stove that should be cheap, should work with their pots, with their fuel, with their cooking style,” he said. “And something that should be at least 25 to 30 percent efficient.”\u003c/p>\n\u003cp>Along with Ken Chow, an engineer at the lab and a member of \u003ca href=\"http://www.ewb-usa.org/\">Engineers Without Borders\u003c/a>, Gadgil designed a stove that requires only a quarter of the wood that a traditional stove burns.\u003c/p>\n\u003cp>“That means they’re not going out every other day,” he said. Instead, the women would need to venture outside of the camps only once a week, since they would be burning less wood to cook the same amount of food.\u003c/p>\n\u003cfigure id=\"attachment_73044\" class=\"wp-caption alignright\" style=\"max-width: 238px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/stove_illustration.jpg\">\u003cimg class=\"size-thumbnail wp-image-73044\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/stove_illustration-238x169.jpg\" alt=\"The LBNL team designed the Berkeley-Darfur cookstove to fit the food type, cooking style, pot shapes, and environmental conditions in Darfur (primarily wind and sand).\" width=\"238\" height=\"169\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">The LBNL team designed the Berkeley-Darfur cookstove to fit the food type, cooking style, pot shapes, and environmental conditions in Darfur (primarily wind and sand).\u003c/figcaption>\u003c/figure>\n\u003cp>Gadgil and his team called their invention the Berkeley-Darfur Stove. But changing the stove itself wasn’t enough to ensure efficient cooking in the camps.\u003c/p>\n\u003cp>“Five things go in to determine the efficiency of a stove in the real world,” said Gadgil. “It’s not just a stove by itself. Get the cook to tend the fire right, make sure that you understand what kind of cooking is going on in what kind of pot, make sure the pot fits well over the stove and oxygen supply is controlled but adequate, and make sure all of that works with the right kind of fuel that’s available locally.”\u003c/p>\n\u003cp>While there was still firewood to be collected outside the camps, fewer trips by the women meant decreased risk of rape. Now that the areas around the camps have largely been deforested, better stoves mean that the women must sell less of their precious food supply to buy wood.\u003c/p>\n\u003cp>Since the team finalized the design in 2009, nearly 40,000 stoves have been distributed to refugees.\u003c/p>\n\u003cp>A nonprofit called \u003ca href=\"http://www.potentialenergy.org/\">Potential Energy\u003c/a>, based in Oakland, has taken over the Berkeley-Darfur Stoves Project, and now works with other community organizations to manufacture the stoves and get them to the people who need them. After being shipped to Sudan, the stoves are assembled from simple, lightweight kits in a workshop in Darfur that is staffed entirely by workers who live in the camps.\u003c/p>\n\u003cfigure id=\"attachment_73046\" class=\"wp-caption alignleft\" style=\"max-width: 800px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/PotentialEnergy_SagOffice_800.jpg\">\u003cimg class=\"wp-image-73046 size-full\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/PotentialEnergy_SagOffice_800.jpg\" alt=\"Since 2009, nearly 40,000 cookstoves have been distributed to refugees in the Darfur camps. Courtesy Potential Energy. \" width=\"800\" height=\"450\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2014/11/PotentialEnergy_SagOffice_800.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2014/11/PotentialEnergy_SagOffice_800-400x225.jpg 400w\" sizes=\"(max-width: 800px) 100vw, 800px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">Since 2009, nearly 40,000 cookstoves have been distributed to refugees in the Darfur camps. Courtesy Potential Energy.\u003c/figcaption>\u003c/figure>\n\u003cp>But fuel efficiency isn’t the only problem with traditional cookstoves, and the problems aren’t unique to Darfur. The U.S. Department of Energy took note of Lawrence Berkeley National Lab’s success with the Berkeley-Darfur Stoves, and in 2013, as part of \u003ca href=\"http://www.cleancookstoves.org/\">a broader global effort to address the harm caused by cookstoves\u003c/a>, came to Gadgil with an even more destructive stove problem long overdue for a solution.\u003c/p>\n\u003cp>Three billion people – more than half of the world’s population – eat food prepared on open fires or “biomass” cookstoves. Some, like the stoves traditionally used by the Darfuri women, burn wood. In other parts of the developing world, coal, animal dung, or other fuels are used.\u003c/p>\n\u003cp>When these materials are burned indoors, they release toxic fumes and dangerous amounts of soot. \u003ca href=\"http://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=270928&fed_org_id=858&SIType=PR&TIMSType=&showCriteria=0&address=nheerl/pubs.html&view=citation&sortBy=pubDateYear&count=100&dateBeginPublishedPresented=01/01/2010\">Every year, about four million people in developing nations, mostly women and children, die of illnesses caused by inhaling the smoke from these fires\u003c/a>. Exposure leads to low birth weight, childhood pneumonia, tuberculosis, asthma and other serious chronic illnesses. Lower respiratory infections were \u003ca href=\"http://www.who.int/mediacentre/factsheets/fs310/en/index1.html\">the leading cause of death in low-income countries in 2011\u003c/a> and are predicted to be \u003ca href=\"http://www.who.int/healthinfo/global_burden_disease/projections/en/\">the top cause of death in Africa by 2015\u003c/a>.\u003c/p>\n\u003cp>The inefficiency of the stoves also contributes to poverty -- up to seven hours of labor per day, and half of a family’s income, can be expended on firewood.\u003c/p>\n\u003cp>In addition to this devastating human toll, cooking fires contribute greatly to deforestation and climate change. The burning of household biofuels is the second greatest contributor to global warming, second only to motor vehicles.\u003c/p>\n\u003cfigure id=\"attachment_73047\" class=\"wp-caption alignright\" style=\"max-width: 751px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/PotentialEnergy_YoungWoman_800.jpg\">\u003cimg class=\"size-full wp-image-73047\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/PotentialEnergy_YoungWoman_800.jpg\" alt=\"A young woman in Darfur prepares a fire with the Berkeley-Darfur Stove. Courtesy Potential Energy.\" width=\"751\" height=\"450\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2014/11/PotentialEnergy_YoungWoman_800.jpg 751w, https://ww2.kqed.org/app/uploads/sites/39/2014/11/PotentialEnergy_YoungWoman_800-400x240.jpg 400w\" sizes=\"(max-width: 751px) 100vw, 751px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">A young woman in Darfur prepares a fire with the Berkeley-Darfur Stove. Courtesy Potential Energy.\u003c/figcaption>\u003c/figure>\n\u003cp>The Department of Energy’s missive was clear: invent a new stove that would produce ten times less pollution than the traditional cookstoves currently in use around the world. To help, the government has funded a state-of-the-art stove-testing laboratory at the lab in Berkeley, where Gadgil and his team of students and engineers are working furiously to cook up a prototype.\u003c/p>\n\u003cp>Gadgil said that he is confident that, at least in the lab, the team will have a new “ultra-clean” stove design built and tested by the fall of 2015.\u003c/p>\n\u003cp>The new stoves would cost between $30 and $40 each, he said, and would not require electricity. The stoves are most needed in Asia and Africa, but South and Central American countries also would benefit.\u003c/p>\n\u003cp>In addition to paying for the stove-testing lab, Gadgil has proposed that the energy department should help pay to train engineers from other countries in building and operating similar labs in their own countries. If all goes well, he said, this training should begin in 2015.\u003c/p>\n\u003cp>[ad floatright]\u003c/p>\n\u003cp>“We want to elevate global technology on stoves all around the world,” said Gadgil. “World-class science and technology, applied to big and often desperate problems of the people at the base of the global economic pyramid, can help improve their lives.”\u003c/p>\n\n",
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"excerpt": "Since the Darfur crisis began in 2003, women living in the refugee camps walked for up to seven hours outside the safety of the camps to collect firewood for cooking, putting them at risk for violent attacks. Now, researchers at Lawrence Berkeley National Laboratory have engineered a more efficient wood-burning stove, which is greatly reducing both the women's need for firewood and the threats against them.",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003cp>\u003cem>This video story was originally produced by\u003ca href=\"http://ww2.kqed.org/quest/author/amy-miller/\"> Amy Miller \u003c/a>and was updated by \u003ca href=\"http://ww2.kqed.org/quest/author/lisalanders/\">Lisa Landers \u003c/a> and Arwen Curry.\u003c/em>\u003c/p>\n\u003cp>In 2003, following a series of tribal and political uprisings, the Sudanese government sanctioned violent militias, called the Janjaweed, to destroy entire villages in the western province of Darfur. \u003ca href=\"http://www.trust.org/spotlight/Darfur-conflict\">Since then\u003c/a>, a brutal campaign has targeted civilians, killing more than 400,000 people and fundamentally altering their way of life. More than a decade after the beginning of the conflict, 1.4 million people still live in densely populated refugee camps.\u003c/p>\n\u003cp>During the first years of displacement, women had to walk for up to seven hours outside the safety of the camps to collect firewood for cooking, putting them at risk for violent attacks. In 2005, the U.S. government approached \u003ca href=\"http://energy.lbl.gov/staff/gadgil/agadgil.html\">Ashok Gadgil\u003c/a>, director of Lawrence Berkeley National Lab's Environmental Energy Technologies Division, in search of a hands-on solution to this devastating problem.\u003c/p>\n\u003cfigure id=\"attachment_73070\" class=\"wp-caption alignleft\" style=\"max-width: 300px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/Ashok_IMG_0048_800.jpg\">\u003cimg class=\"wp-image-73070 size-thumbnail\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/Ashok_IMG_0048_800-300x169.jpg\" alt=\"Engineer Ashok Gadgil visited Darfur in 2005 to consult with Darfuri women about their cooking methods.<br /> Courtesy Lawrence Berkeley National Laboratory.\" width=\"300\" height=\"169\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">Engineer Ashok Gadgil visited Darfur in 2005 to consult with Darfuri women about their cooking methods.\u003cbr> Courtesy Lawrence Berkeley National Laboratory.\u003c/figcaption>\u003c/figure>\n\u003cp>At first, said Gadgil, he didn’t know how he, as an engineer, could hope to ease the refugee crisis. But when he learned that women in the camps cooked using traditional methods in which their cooking pots sit atop three stones, with a fire burning in the middle, he saw the spark of a solution.\u003c/p>\n\u003cp>“A three-stone fire is the least efficient way to take energy from the fuel wood and turn it into heat into the pot,” said Gadgil.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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"content": "\u003cdiv class=\"post-body\">\u003cp>\u003c/p>\n\u003cp>The efficiency of a typical three-stone fire is 5 to 6 percent. Poor combustion of the wood means that the fire’s chemical energy isn’t transferred to heat, and what heat there is transfers poorly into the pot.\u003c/p>\n\u003cp>“So I figured I should be able to design a stove that should be cheap, should work with their pots, with their fuel, with their cooking style,” he said. “And something that should be at least 25 to 30 percent efficient.”\u003c/p>\n\u003cp>Along with Ken Chow, an engineer at the lab and a member of \u003ca href=\"http://www.ewb-usa.org/\">Engineers Without Borders\u003c/a>, Gadgil designed a stove that requires only a quarter of the wood that a traditional stove burns.\u003c/p>\n\u003cp>“That means they’re not going out every other day,” he said. Instead, the women would need to venture outside of the camps only once a week, since they would be burning less wood to cook the same amount of food.\u003c/p>\n\u003cfigure id=\"attachment_73044\" class=\"wp-caption alignright\" style=\"max-width: 238px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/stove_illustration.jpg\">\u003cimg class=\"size-thumbnail wp-image-73044\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/stove_illustration-238x169.jpg\" alt=\"The LBNL team designed the Berkeley-Darfur cookstove to fit the food type, cooking style, pot shapes, and environmental conditions in Darfur (primarily wind and sand).\" width=\"238\" height=\"169\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">The LBNL team designed the Berkeley-Darfur cookstove to fit the food type, cooking style, pot shapes, and environmental conditions in Darfur (primarily wind and sand).\u003c/figcaption>\u003c/figure>\n\u003cp>Gadgil and his team called their invention the Berkeley-Darfur Stove. But changing the stove itself wasn’t enough to ensure efficient cooking in the camps.\u003c/p>\n\u003cp>“Five things go in to determine the efficiency of a stove in the real world,” said Gadgil. “It’s not just a stove by itself. Get the cook to tend the fire right, make sure that you understand what kind of cooking is going on in what kind of pot, make sure the pot fits well over the stove and oxygen supply is controlled but adequate, and make sure all of that works with the right kind of fuel that’s available locally.”\u003c/p>\n\u003cp>While there was still firewood to be collected outside the camps, fewer trips by the women meant decreased risk of rape. Now that the areas around the camps have largely been deforested, better stoves mean that the women must sell less of their precious food supply to buy wood.\u003c/p>\n\u003cp>Since the team finalized the design in 2009, nearly 40,000 stoves have been distributed to refugees.\u003c/p>\n\u003cp>A nonprofit called \u003ca href=\"http://www.potentialenergy.org/\">Potential Energy\u003c/a>, based in Oakland, has taken over the Berkeley-Darfur Stoves Project, and now works with other community organizations to manufacture the stoves and get them to the people who need them. After being shipped to Sudan, the stoves are assembled from simple, lightweight kits in a workshop in Darfur that is staffed entirely by workers who live in the camps.\u003c/p>\n\u003cfigure id=\"attachment_73046\" class=\"wp-caption alignleft\" style=\"max-width: 800px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/PotentialEnergy_SagOffice_800.jpg\">\u003cimg class=\"wp-image-73046 size-full\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/PotentialEnergy_SagOffice_800.jpg\" alt=\"Since 2009, nearly 40,000 cookstoves have been distributed to refugees in the Darfur camps. Courtesy Potential Energy. \" width=\"800\" height=\"450\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2014/11/PotentialEnergy_SagOffice_800.jpg 800w, https://ww2.kqed.org/app/uploads/sites/39/2014/11/PotentialEnergy_SagOffice_800-400x225.jpg 400w\" sizes=\"(max-width: 800px) 100vw, 800px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">Since 2009, nearly 40,000 cookstoves have been distributed to refugees in the Darfur camps. Courtesy Potential Energy.\u003c/figcaption>\u003c/figure>\n\u003cp>But fuel efficiency isn’t the only problem with traditional cookstoves, and the problems aren’t unique to Darfur. The U.S. Department of Energy took note of Lawrence Berkeley National Lab’s success with the Berkeley-Darfur Stoves, and in 2013, as part of \u003ca href=\"http://www.cleancookstoves.org/\">a broader global effort to address the harm caused by cookstoves\u003c/a>, came to Gadgil with an even more destructive stove problem long overdue for a solution.\u003c/p>\n\u003cp>Three billion people – more than half of the world’s population – eat food prepared on open fires or “biomass” cookstoves. Some, like the stoves traditionally used by the Darfuri women, burn wood. In other parts of the developing world, coal, animal dung, or other fuels are used.\u003c/p>\n\u003cp>When these materials are burned indoors, they release toxic fumes and dangerous amounts of soot. \u003ca href=\"http://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=270928&fed_org_id=858&SIType=PR&TIMSType=&showCriteria=0&address=nheerl/pubs.html&view=citation&sortBy=pubDateYear&count=100&dateBeginPublishedPresented=01/01/2010\">Every year, about four million people in developing nations, mostly women and children, die of illnesses caused by inhaling the smoke from these fires\u003c/a>. Exposure leads to low birth weight, childhood pneumonia, tuberculosis, asthma and other serious chronic illnesses. Lower respiratory infections were \u003ca href=\"http://www.who.int/mediacentre/factsheets/fs310/en/index1.html\">the leading cause of death in low-income countries in 2011\u003c/a> and are predicted to be \u003ca href=\"http://www.who.int/healthinfo/global_burden_disease/projections/en/\">the top cause of death in Africa by 2015\u003c/a>.\u003c/p>\n\u003cp>The inefficiency of the stoves also contributes to poverty -- up to seven hours of labor per day, and half of a family’s income, can be expended on firewood.\u003c/p>\n\u003cp>In addition to this devastating human toll, cooking fires contribute greatly to deforestation and climate change. The burning of household biofuels is the second greatest contributor to global warming, second only to motor vehicles.\u003c/p>\n\u003cfigure id=\"attachment_73047\" class=\"wp-caption alignright\" style=\"max-width: 751px\">\u003ca href=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/PotentialEnergy_YoungWoman_800.jpg\">\u003cimg class=\"size-full wp-image-73047\" src=\"http://ww2.kqed.org/quest/wp-content/uploads/sites/39/2014/11/PotentialEnergy_YoungWoman_800.jpg\" alt=\"A young woman in Darfur prepares a fire with the Berkeley-Darfur Stove. Courtesy Potential Energy.\" width=\"751\" height=\"450\" srcset=\"https://ww2.kqed.org/app/uploads/sites/39/2014/11/PotentialEnergy_YoungWoman_800.jpg 751w, https://ww2.kqed.org/app/uploads/sites/39/2014/11/PotentialEnergy_YoungWoman_800-400x240.jpg 400w\" sizes=\"(max-width: 751px) 100vw, 751px\">\u003c/a>\u003cfigcaption class=\"wp-caption-text\">A young woman in Darfur prepares a fire with the Berkeley-Darfur Stove. Courtesy Potential Energy.\u003c/figcaption>\u003c/figure>\n\u003cp>The Department of Energy’s missive was clear: invent a new stove that would produce ten times less pollution than the traditional cookstoves currently in use around the world. To help, the government has funded a state-of-the-art stove-testing laboratory at the lab in Berkeley, where Gadgil and his team of students and engineers are working furiously to cook up a prototype.\u003c/p>\n\u003cp>Gadgil said that he is confident that, at least in the lab, the team will have a new “ultra-clean” stove design built and tested by the fall of 2015.\u003c/p>\n\u003cp>The new stoves would cost between $30 and $40 each, he said, and would not require electricity. The stoves are most needed in Asia and Africa, but South and Central American countries also would benefit.\u003c/p>\n\u003cp>In addition to paying for the stove-testing lab, Gadgil has proposed that the energy department should help pay to train engineers from other countries in building and operating similar labs in their own countries. If all goes well, he said, this training should begin in 2015.\u003c/p>\n\u003cp>\u003c/p>\u003c/div>",
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},
"closealltabs": {
"id": "closealltabs",
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"order": 1
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"title": "Code Switch / Life Kit",
"info": "\u003cem>Code Switch\u003c/em>, which listeners will hear in the first part of the hour, has fearless and much-needed conversations about race. Hosted by journalists of color, the show tackles the subject of race head-on, exploring how it impacts every part of society — from politics and pop culture to history, sports and more.\u003cbr />\u003cbr />\u003cem>Life Kit\u003c/em>, which will be in the second part of the hour, guides you through spaces and feelings no one prepares you for — from finances to mental health, from workplace microaggressions to imposter syndrome, from relationships to parenting. The show features experts with real world experience and shares their knowledge. Because everyone needs a little help being human.\u003cbr />\u003cbr />\u003ca href=\"https://www.npr.org/podcasts/510312/codeswitch\">\u003cem>Code Switch\u003c/em> offical site and podcast\u003c/a>\u003cbr />\u003ca href=\"https://www.npr.org/lifekit\">\u003cem>Life Kit\u003c/em> offical site and podcast\u003c/a>\u003cbr />",
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"id": "commonwealth-club",
"title": "Commonwealth Club of California Podcast",
"info": "The Commonwealth Club of California is the nation's oldest and largest public affairs forum. As a non-partisan forum, The Club brings to the public airwaves diverse viewpoints on important topics. The Club's weekly radio broadcast - the oldest in the U.S., dating back to 1924 - is carried across the nation on public radio stations and is now podcasting. Our website archive features audio of our recent programs, as well as selected speeches from our long and distinguished history. This podcast feed is usually updated twice a week and is always un-edited.",
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"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/Commonwealth-Club-Podcast-Tile-360x360-1.jpg",
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"source": "Commonwealth Club of California"
},
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"google": "https://podcasts.google.com/feed/aHR0cDovL3d3dy5jb21tb253ZWFsdGhjbHViLm9yZy9hdWRpby9wb2RjYXN0L3dlZWtseS54bWw",
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"id": "forum",
"title": "Forum",
"tagline": "The conversation starts here",
"info": "KQED’s live call-in program discussing local, state, national and international issues, as well as in-depth interviews.",
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"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/Forum-Podcast-Tile-703x703-1.jpg",
"imageAlt": "KQED Forum with Mina Kim and Alexis Madrigal",
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"order": 9
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"id": "freakonomics-radio",
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"meta": {
"site": "radio",
"source": "WNYC"
},
"link": "/radio/program/freakonomics-radio",
"subscribe": {
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"apple": "https://itunes.apple.com/us/podcast/freakonomics-radio/id354668519",
"tuneIn": "https://tunein.com/podcasts/WNYC-Podcasts/Freakonomics-Radio-p272293/",
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},
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"id": "fresh-air",
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"apple": "https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?s=143441&mt=2&id=214089682&at=11l79Y&ct=nprdirectory",
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"info": "A live production of NPR and WBUR Boston, in collaboration with stations across the country, Here & Now reflects the fluid world of news as it's happening in the middle of the day, with timely, in-depth news, interviews and conversation. Hosted by Robin Young, Jeremy Hobson and Tonya Mosley.",
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"hidden-brain": {
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"info": "Shankar Vedantam uses science and storytelling to reveal the unconscious patterns that drive human behavior, shape our choices and direct our relationships.",
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"airtime": "SUN 7pm-8pm",
"meta": {
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"source": "NPR"
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"how-i-built-this": {
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"info": "Guy Raz dives into the stories behind some of the world's best known companies. How I Built This weaves a narrative journey about innovators, entrepreneurs and idealists—and the movements they built.",
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"airtime": "SUN 7:30pm-8pm",
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"link": "/radio/program/how-i-built-this",
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"hyphenacion": {
"id": "hyphenacion",
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"tagline": "Where conversation and cultura meet",
"info": "What kind of no sabo word is Hyphenación? For us, it’s about living within a hyphenation. Like being a third-gen Mexican-American from the Texas border now living that Bay Area Chicano life. Like Xorje! Each week we bring together a couple of hyphenated Latinos to talk all about personal life choices: family, careers, relationships, belonging … everything is on the table. ",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2025/03/Hyphenacion_FinalAssets_PodcastTile.png",
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"order": 15
},
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"jerrybrown": {
"id": "jerrybrown",
"title": "The Political Mind of Jerry Brown",
"tagline": "Lessons from a lifetime in politics",
"info": "The Political Mind of Jerry Brown brings listeners the wisdom of the former Governor, Mayor, and presidential candidate. Scott Shafer interviewed Brown for more than 40 hours, covering the former governor's life and half-century in the political game – and Brown has some lessons he'd like to share. ",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/The-Political-Mind-of-Jerry-Brown-Podcast-Tile-703x703-1.jpg",
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"officialWebsiteLink": "/podcasts/jerrybrown",
"meta": {
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"order": 18
},
"link": "/podcasts/jerrybrown",
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},
"latino-usa": {
"id": "latino-usa",
"title": "Latino USA",
"airtime": "MON 1am-2am, SUN 6pm-7pm",
"info": "Latino USA, the radio journal of news and culture, is the only national, English-language radio program produced from a Latino perspective.",
"imageSrc": "https://ww2.kqed.org/radio/wp-content/uploads/sites/50/2018/04/latinoUsa.jpg",
"officialWebsiteLink": "http://latinousa.org/",
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"link": "/radio/program/latino-usa",
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"apple": "https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?s=143441&mt=2&id=79681317&at=11l79Y&ct=nprdirectory",
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"rss": "https://feeds.npr.org/510016/podcast.xml"
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},
"marketplace": {
"id": "marketplace",
"title": "Marketplace",
"info": "Our flagship program, helmed by Kai Ryssdal, examines what the day in money delivered, through stories, conversations, newsworthy numbers and more. Updated Monday through Friday at about 3:30 p.m. PT.",
"airtime": "MON-FRI 4pm-4:30pm, MON-WED 6:30pm-7pm",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/Marketplace-Podcast-Tile-360x360-1.jpg",
"officialWebsiteLink": "https://www.marketplace.org/",
"meta": {
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"source": "American Public Media"
},
"link": "/radio/program/marketplace",
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},
"masters-of-scale": {
"id": "masters-of-scale",
"title": "Masters of Scale",
"info": "Masters of Scale is an original podcast in which LinkedIn co-founder and Greylock Partner Reid Hoffman sets out to describe and prove theories that explain how great entrepreneurs take their companies from zero to a gazillion in ingenious fashion.",
"airtime": "Every other Wednesday June 12 through October 16 at 8pm (repeats Thursdays at 2am)",
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"meta": {
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"source": "WaitWhat"
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"rss": "https://rss.art19.com/masters-of-scale"
}
},
"mindshift": {
"id": "mindshift",
"title": "MindShift",
"tagline": "A podcast about the future of learning and how we raise our kids",
"info": "The MindShift podcast explores the innovations in education that are shaping how kids learn. Hosts Ki Sung and Katrina Schwartz introduce listeners to educators, researchers, parents and students who are developing effective ways to improve how kids learn. We cover topics like how fed-up administrators are developing surprising tactics to deal with classroom disruptions; how listening to podcasts are helping kids develop reading skills; the consequences of overparenting; and why interdisciplinary learning can engage students on all ends of the traditional achievement spectrum. This podcast is part of the MindShift education site, a division of KQED News. KQED is an NPR/PBS member station based in San Francisco. You can also visit the MindShift website for episodes and supplemental blog posts or tweet us \u003ca href=\"https://twitter.com/MindShiftKQED\">@MindShiftKQED\u003c/a> or visit us at \u003ca href=\"/mindshift\">MindShift.KQED.org\u003c/a>",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/Mindshift-Podcast-Tile-703x703-1.jpg",
"imageAlt": "KQED MindShift: How We Will Learn",
"officialWebsiteLink": "/mindshift/",
"meta": {
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"source": "kqed",
"order": 12
},
"link": "/podcasts/mindshift",
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"google": "https://podcasts.google.com/feed/aHR0cHM6Ly9mZWVkcy5tZWdhcGhvbmUuZm0vS1FJTkM1NzY0NjAwNDI5",
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}
},
"morning-edition": {
"id": "morning-edition",
"title": "Morning Edition",
"info": "\u003cem>Morning Edition\u003c/em> takes listeners around the country and the world with multi-faceted stories and commentaries every weekday. Hosts Steve Inskeep, David Greene and Rachel Martin bring you the latest breaking news and features to prepare you for the day.",
"airtime": "MON-FRI 3am-9am",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/Morning-Edition-Podcast-Tile-360x360-1.jpg",
"officialWebsiteLink": "https://www.npr.org/programs/morning-edition/",
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"link": "/radio/program/morning-edition"
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"onourwatch": {
"id": "onourwatch",
"title": "On Our Watch",
"tagline": "Deeply-reported investigative journalism",
"info": "For decades, the process for how police police themselves has been inconsistent – if not opaque. In some states, like California, these proceedings were completely hidden. After a new police transparency law unsealed scores of internal affairs files, our reporters set out to examine these cases and the shadow world of police discipline. On Our Watch brings listeners into the rooms where officers are questioned and witnesses are interrogated to find out who this system is really protecting. Is it the officers, or the public they've sworn to serve?",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/On-Our-Watch-Podcast-Tile-703x703-1.jpg",
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"officialWebsiteLink": "/podcasts/onourwatch",
"meta": {
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"source": "kqed",
"order": 11
},
"link": "/podcasts/onourwatch",
"subscribe": {
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"google": "https://podcasts.google.com/feed/aHR0cHM6Ly9mZWVkcy5ucHIub3JnLzUxMDM2MC9wb2RjYXN0LnhtbD9zYz1nb29nbGVwb2RjYXN0cw",
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},
"on-the-media": {
"id": "on-the-media",
"title": "On The Media",
"info": "Our weekly podcast explores how the media 'sausage' is made, casts an incisive eye on fluctuations in the marketplace of ideas, and examines threats to the freedom of information and expression in America and abroad. For one hour a week, the show tries to lift the veil from the process of \"making media,\" especially news media, because it's through that lens that we see the world and the world sees us",
"airtime": "SUN 2pm-3pm, MON 12am-1am",
"imageSrc": "https://ww2.kqed.org/radio/wp-content/uploads/sites/50/2018/04/onTheMedia.png",
"officialWebsiteLink": "https://www.wnycstudios.org/shows/otm",
"meta": {
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"source": "wnyc"
},
"link": "/radio/program/on-the-media",
"subscribe": {
"apple": "https://itunes.apple.com/us/podcast/on-the-media/id73330715?mt=2",
"tuneIn": "https://tunein.com/radio/On-the-Media-p69/",
"rss": "http://feeds.wnyc.org/onthemedia"
}
},
"pbs-newshour": {
"id": "pbs-newshour",
"title": "PBS NewsHour",
"info": "Analysis, background reports and updates from the PBS NewsHour putting today's news in context.",
"airtime": "MON-FRI 3pm-4pm",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2024/04/PBS-News-Hour-Podcast-Tile-360x360-1.jpg",
"officialWebsiteLink": "https://www.pbs.org/newshour/",
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},
"link": "/radio/program/pbs-newshour",
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"apple": "https://itunes.apple.com/us/podcast/pbs-newshour-full-show/id394432287?mt=2",
"tuneIn": "https://tunein.com/radio/PBS-NewsHour---Full-Show-p425698/",
"rss": "https://www.pbs.org/newshour/feeds/rss/podcasts/show"
}
},
"perspectives": {
"id": "perspectives",
"title": "Perspectives",
"tagline": "KQED's series of daily listener commentaries since 1991",
"info": "KQED's series of daily listener commentaries since 1991.",
"imageSrc": "https://cdn.kqed.org/wp-content/uploads/2025/01/Perspectives_Tile_Final.jpg",
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"officialWebsiteLink": "/perspectives/",
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"source": "kqed",
"order": 14
},
"link": "/perspectives",
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"npr": "https://www.npr.org/podcasts/432309616/perspectives",
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},
"planet-money": {
"id": "planet-money",
"title": "Planet Money",
"info": "The economy explained. Imagine you could call up a friend and say, Meet me at the bar and tell me what's going on with the economy. Now imagine that's actually a fun evening.",
"airtime": "SUN 3pm-4pm",
"imageSrc": "https://ww2.kqed.org/radio/wp-content/uploads/sites/50/2018/04/planetmoney.jpg",
"officialWebsiteLink": "https://www.npr.org/sections/money/",
"meta": {
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"source": "npr"
},
"link": "/radio/program/planet-money",
"subscribe": {
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