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DragonflyTV Previous Broadcasts

Self Assembly/Bone Regrowth (Episode #705Z)

KQED Kids: Mon, Dec 31, 2012 -- 4:00 PM

Self Assembly - Keely and Connor learn about self-assembly at the Children's Museum of Houston. The museum staff suggest they visit Rice University, where scientists use self-assembly to make things at the nanoscale. At Rice, a scientist helps the kids use self-assembly to make and "pop" microcapsules. The kids then try out a similar technique at home, encapsulating chocolate sauce, mint and other flavors in alginate beads to serve on ice cream. Bone Regrowth - Kobel, Nathan, and Adam go to the Oregon Museum of Science and Industry (OMSI), where they learn that scientists are using nanotechnology to help regenerate nerves and bones. A scientist from Brown University explains that a solution of nanotubes and minerals is injected into the fracture and forms a scaffold to encourage bone regrowth. The kids want to know why both ingredients are needed to repair the bone. They try solutions with different amounts of each ingredient on sponges and test how much weight each treated sponge can support.

Repeat Broadcasts:

  • KQED Kids: Mon, Dec 31, 2012 -- 10:30 PM

Gecko Feet/Nasturtium Leaves (Episode #704Z)

KQED Kids: Sat, Dec 29, 2012 -- 4:00 PM

Gecko Feet - Jennifer and Nooshin like rock climbing. They wonder how some lizards can climb rocks so easily. They visit the Lawrence Hall of Science in Berkeley and compare the climbing ability of different lizards. They notice that the best climbers are geckos. They visit a lab at the University of California Berkeley to find out why, learning that special, nanoscale hairs on gecko feet are the secret to their amazing climbing abilities. Nasturtium Leaves - Jasmine and Melinda wonder why water beads up on some plants and not others. They head to San Francisco's Exploratorium, where they learn that surfaces at the nanoscale aren't always smooth, and that nano hairs on nasturtium leaves cause them to be water repellent. The girls collect other plants with hairy leaves and test their ability to repel water. They take some samples to Stanford University for up-closing imaging and compare the structure of nasturtium leaves to water-resistant fabric.

Repeat Broadcasts:

  • KQED Kids: Mon, Dec 31, 2012 -- 4:30 AM
  • KQED Kids: Sun, Dec 30, 2012 -- 10:30 PM
  • KQED Kids: Sun, Dec 30, 2012 -- 4:00 PM
  • KQED Kids: Sun, Dec 30, 2012 -- 4:30 AM
  • KQED Kids: Sat, Dec 29, 2012 -- 10:30 PM

Chemistry (Episode #410)

KQED Kids: Wed, Dec 26, 2012 -- 4:00 PM

Beakers, charts and lipstick? Young chemists explore the science of make-up. Carolyn and Kaila turn into forensic scientists to solve a birthday mystery. And: an ice cream scientist who actually gets to eat his work!

Repeat Broadcasts:

  • KQED Kids: Thu, Dec 27, 2012 -- 4:30 AM
  • KQED Kids: Wed, Dec 26, 2012 -- 10:30 PM

Habitats (Episode #310Z)

KQED Kids: Tue, Dec 25, 2012 -- 4:00 PM

Things are getting rocky when Michelle, Matt and Marie explore California caves. Susie and Katie get a jump on investigating malformed frogs. Gillian explores a lizard's lair to see what makes these reptiles rock. And real-life Batgirl and researcher Erin Gillam shows how more bats equal fewer bugs.

Repeat Broadcasts:

  • KQED Kids: Wed, Dec 26, 2012 -- 4:30 AM
  • KQED Kids: Tue, Dec 25, 2012 -- 10:30 PM

Gecko Feet/Nasturtium Leaves (Episode #704Z)

KQED Kids: Mon, Dec 24, 2012 -- 4:00 PM

Gecko Feet - Jennifer and Nooshin like rock climbing. They wonder how some lizards can climb rocks so easily. They visit the Lawrence Hall of Science in Berkeley and compare the climbing ability of different lizards. They notice that the best climbers are geckos. They visit a lab at the University of California Berkeley to find out why, learning that special, nanoscale hairs on gecko feet are the secret to their amazing climbing abilities. Nasturtium Leaves - Jasmine and Melinda wonder why water beads up on some plants and not others. They head to San Francisco's Exploratorium, where they learn that surfaces at the nanoscale aren't always smooth, and that nano hairs on nasturtium leaves cause them to be water repellent. The girls collect other plants with hairy leaves and test their ability to repel water. They take some samples to Stanford University for up-closing imaging and compare the structure of nasturtium leaves to water-resistant fabric.

Repeat Broadcasts:

  • KQED Kids: Mon, Dec 31, 2012 -- 4:30 AM
  • KQED Kids: Sun, Dec 30, 2012 -- 10:30 PM
  • KQED Kids: Sun, Dec 30, 2012 -- 4:00 PM
  • KQED Kids: Sun, Dec 30, 2012 -- 4:30 AM
  • KQED Kids: Sat, Dec 29, 2012 -- 10:30 PM
  • KQED Kids: Tue, Dec 25, 2012 -- 4:30 AM
  • KQED Kids: Mon, Dec 24, 2012 -- 10:30 PM

Surface Area/Stained Glass (Episode #703Z)

KQED Kids: Sat, Dec 22, 2012 -- 4:00 PM

Surface Area - After discovering that ordinary flour dust can be explosive, Lara and Anushua explore the importance of surface to area to volume ratio at the Science Museum of Minnesota. They conduct soda explosion experiments in the museum's Big Back Yard, investigating how surface area affects reactions. Finally, they visit the University of Minnesota where they learn how scientists are developing more affordable solar cells with nanotechnology that increases the cells' surface area. Stained Glass - Alettie and Yvonne visit the Glass Experience exhibit at the Museum of Science and Industry in Chicago and learn that nanoparticles are responsible for the colors in some medieval stained glass. The girls are surprised to learn that nanogold makes glass red! They go to Northwestern University to explore the relationship between size and color of nanoparticles. They create different sizes of gold and silver nanoparticles to produce a variety of colors, which they use to make their own works of art.

Repeat Broadcasts:

  • KQED Kids: Mon, Dec 24, 2012 -- 4:30 AM
  • KQED Kids: Sun, Dec 23, 2012 -- 10:30 PM
  • KQED Kids: Sun, Dec 23, 2012 -- 4:00 PM
  • KQED Kids: Sun, Dec 23, 2012 -- 4:30 AM
  • KQED Kids: Sat, Dec 22, 2012 -- 10:30 PM

At The Zoo (Episode #409)

KQED Kids: Wed, Dec 19, 2012 -- 4:00 PM

Tiger toys: Chelsea and Camille invent enrichment equipment for zoo animals. Julian and Sabrina "go to the dogs," creating sound spectrum snapshots of prairie dog barks to explore animal communication. And: How do you weigh a whale? do you weigh a whale?

Repeat Broadcasts:

  • KQED Kids: Thu, Dec 20, 2012 -- 4:30 AM
  • KQED Kids: Wed, Dec 19, 2012 -- 10:30 PM

Health (Episode #309Z)

KQED Kids: Tue, Dec 18, 2012 -- 4:00 PM

Furry medicine: Jeff and Laura investigate how house cats and hounds help kids heal. Achoo: kids use "Glo Germ" technology to track the common cold's source. Serious snacking: a nutritionist tests kids' fave foods to discover best bets.

Repeat Broadcasts:

  • KQED Kids: Wed, Dec 19, 2012 -- 4:30 AM
  • KQED Kids: Tue, Dec 18, 2012 -- 10:30 PM

Surface Area/Stained Glass (Episode #703Z)

KQED Kids: Mon, Dec 17, 2012 -- 4:00 PM

Surface Area - After discovering that ordinary flour dust can be explosive, Lara and Anushua explore the importance of surface to area to volume ratio at the Science Museum of Minnesota. They conduct soda explosion experiments in the museum's Big Back Yard, investigating how surface area affects reactions. Finally, they visit the University of Minnesota where they learn how scientists are developing more affordable solar cells with nanotechnology that increases the cells' surface area. Stained Glass - Alettie and Yvonne visit the Glass Experience exhibit at the Museum of Science and Industry in Chicago and learn that nanoparticles are responsible for the colors in some medieval stained glass. The girls are surprised to learn that nanogold makes glass red! They go to Northwestern University to explore the relationship between size and color of nanoparticles. They create different sizes of gold and silver nanoparticles to produce a variety of colors, which they use to make their own works of art.

Repeat Broadcasts:

  • KQED Kids: Mon, Dec 24, 2012 -- 4:30 AM
  • KQED Kids: Sun, Dec 23, 2012 -- 10:30 PM
  • KQED Kids: Sun, Dec 23, 2012 -- 4:00 PM
  • KQED Kids: Sun, Dec 23, 2012 -- 4:30 AM
  • KQED Kids: Sat, Dec 22, 2012 -- 10:30 PM
  • KQED Kids: Tue, Dec 18, 2012 -- 4:30 AM
  • KQED Kids: Mon, Dec 17, 2012 -- 10:30 PM

Hockey Sticks/Butterfly Wings (Episode #702Z)

KQED Kids: Sat, Dec 15, 2012 -- 4:00 PM

Hockey Sticks - Nicholas and Jordan love hockey. They know that carbon nanotubes are used in some hockey sticks, but aren't sure how the tiny structures change the equipment. They head to Boston's Museum of Science to learn more about carbon nanotubes. Then, they put their sticks to the test on the ice. Finally, with help from scientists at Harvard University, they compare the tensile strength of the sticks and use powerful microscopes to "see" carbon nanotubes. Butterfly Wings - Emily and Julie check out the Magic Wings Butterfly House at the Museum of Life and Science in Durham. They wonder why butterfly wings are so colorful. They learn that iridescence in some butterfly wings - like the iridescence of soap bubbles - results from their structure. At Duke University, the girls learn how to determine whether colors in wings are the result of pigment or nanoscale structures. They test butterfly wings and learn that blue iridescence is due to structure, not pigment.

Repeat Broadcasts:

  • KQED Kids: Mon, Dec 17, 2012 -- 4:30 AM
  • KQED Kids: Sun, Dec 16, 2012 -- 10:30 PM
  • KQED Kids: Sun, Dec 16, 2012 -- 4:00 PM
  • KQED Kids: Sun, Dec 16, 2012 -- 4:30 AM
  • KQED Kids: Sat, Dec 15, 2012 -- 10:30 PM

Earth Systems (Episode #408)

KQED Kids: Wed, Dec 12, 2012 -- 4:00 PM

Miniature golf makes for maximum fun as kids hit the links to explore erosion. Slap on the SPF45 and join some young desert scientists as they discover how plants survive the harsh conditions on the Guadalupe-Nipomo Sand Dunes. And Dragonfly TV asks: How can kids "make a stink" to reduce dangerous bus emissions?

Repeat Broadcasts:

  • KQED Kids: Thu, Dec 13, 2012 -- 4:30 AM
  • KQED Kids: Wed, Dec 12, 2012 -- 10:30 PM

Speed (Episode #308Z)

KQED Kids: Tue, Dec 11, 2012 -- 4:00 PM

Hot ice: speedskaters Sarah, Lisa, Ned and Eric explore which moves can melt the competition. The pressure's on: California mountain boarders explore how tire pressure affects their boards' speed and maneuverability. And engineer Ryan Newman revs up to design the speediest NASCAR racer.

Repeat Broadcasts:

  • KQED Kids: Wed, Dec 12, 2012 -- 4:30 AM
  • KQED Kids: Tue, Dec 11, 2012 -- 10:30 PM

Hockey Sticks/Butterfly Wings (Episode #702Z)

KQED Kids: Mon, Dec 10, 2012 -- 4:00 PM

Hockey Sticks - Nicholas and Jordan love hockey. They know that carbon nanotubes are used in some hockey sticks, but aren't sure how the tiny structures change the equipment. They head to Boston's Museum of Science to learn more about carbon nanotubes. Then, they put their sticks to the test on the ice. Finally, with help from scientists at Harvard University, they compare the tensile strength of the sticks and use powerful microscopes to "see" carbon nanotubes. Butterfly Wings - Emily and Julie check out the Magic Wings Butterfly House at the Museum of Life and Science in Durham. They wonder why butterfly wings are so colorful. They learn that iridescence in some butterfly wings - like the iridescence of soap bubbles - results from their structure. At Duke University, the girls learn how to determine whether colors in wings are the result of pigment or nanoscale structures. They test butterfly wings and learn that blue iridescence is due to structure, not pigment.

Repeat Broadcasts:

  • KQED Kids: Mon, Dec 17, 2012 -- 4:30 AM
  • KQED Kids: Sun, Dec 16, 2012 -- 10:30 PM
  • KQED Kids: Sun, Dec 16, 2012 -- 4:00 PM
  • KQED Kids: Sun, Dec 16, 2012 -- 4:30 AM
  • KQED Kids: Sat, Dec 15, 2012 -- 10:30 PM
  • KQED Kids: Tue, Dec 11, 2012 -- 4:30 AM
  • KQED Kids: Mon, Dec 10, 2012 -- 10:30 PM

What's Nano?/Where's Nano? (Episode #701Z)

KQED Kids: Sat, Dec 8, 2012 -- 4:00 PM

* What's Nano? Ebony and Jasmine catch the Amazing Nano Brothers Juggling Show at Museum of Science in Boston. The show gets them thinking, "How big is a billion? And how small is a billionth?" They search Boston for examples of a billion. Then they visit laboratories at Harvard University to find examples of nanoscale objects on their quest to "see" a nanometer.
* Where's Nano? Regina, Linda, Harrison, Jared, Lorenz, and Randi, visit the "Zoom In" exhibit at the Morehead Planetarium and Science Center in Chapel Hill. They wonder what examples of nanoscale science and technology they can find in their everyday lives. Their nano "scavenger hunt" takes them to the University of North Carolina Chapel Hill, where a scientist helps them print images of nanoscale structures. The kids then create a visual representation of their findings to display at the science center.

Repeat Broadcasts:

  • KQED Kids: Mon, Dec 10, 2012 -- 4:30 AM
  • KQED Kids: Sun, Dec 9, 2012 -- 10:30 PM
  • KQED Kids: Sun, Dec 9, 2012 -- 4:00 PM
  • KQED Kids: Sun, Dec 9, 2012 -- 4:30 AM
  • KQED Kids: Sat, Dec 8, 2012 -- 10:30 PM

Science at Play (Episode #407)

KQED Kids: Wed, Dec 5, 2012 -- 4:00 PM

Francheska, Marnika and Precious get roped into a Double Dutch investigation. Maddy and Martina use clowns, juggling and science to demonstrate how unreliable human perception can be. And Dragonfly TV asks: How can you clock a whizzing baseball's speed without a radar gun?

Repeat Broadcasts:

  • KQED Kids: Thu, Dec 6, 2012 -- 4:30 AM
  • KQED Kids: Wed, Dec 5, 2012 -- 10:30 PM

Animal Behavior (Episode #307Z)

KQED Kids: Tue, Dec 4, 2012 -- 4:00 PM

Ting and Mallory horse around while investigating equine communication. Young Florida investigators find out whether sharks and rays are really kissing cousins. It's all black and white: New Jersey kids investigate penguins. And neurobiologist Erich Jarvis makes feathers fly with his research on birds, brains and language formation.

Repeat Broadcasts:

  • KQED Kids: Wed, Dec 5, 2012 -- 4:30 AM
  • KQED Kids: Tue, Dec 4, 2012 -- 10:30 PM

What's Nano?/Where's Nano? (Episode #701Z)

KQED Kids: Mon, Dec 3, 2012 -- 4:00 PM

* What's Nano? Ebony and Jasmine catch the Amazing Nano Brothers Juggling Show at Museum of Science in Boston. The show gets them thinking, "How big is a billion? And how small is a billionth?" They search Boston for examples of a billion. Then they visit laboratories at Harvard University to find examples of nanoscale objects on their quest to "see" a nanometer.
* Where's Nano? Regina, Linda, Harrison, Jared, Lorenz, and Randi, visit the "Zoom In" exhibit at the Morehead Planetarium and Science Center in Chapel Hill. They wonder what examples of nanoscale science and technology they can find in their everyday lives. Their nano "scavenger hunt" takes them to the University of North Carolina Chapel Hill, where a scientist helps them print images of nanoscale structures. The kids then create a visual representation of their findings to display at the science center.

Repeat Broadcasts:

  • KQED Kids: Mon, Dec 10, 2012 -- 4:30 AM
  • KQED Kids: Sun, Dec 9, 2012 -- 10:30 PM
  • KQED Kids: Sun, Dec 9, 2012 -- 4:00 PM
  • KQED Kids: Sun, Dec 9, 2012 -- 4:30 AM
  • KQED Kids: Sat, Dec 8, 2012 -- 10:30 PM
  • KQED Kids: Tue, Dec 4, 2012 -- 4:30 AM
  • KQED Kids: Mon, Dec 3, 2012 -- 10:30 PM

The Deep South (Episode #606)

KQED Kids: Sat, Dec 1, 2012 -- 4:00 PM

Joshua and Sean get down and dirty studying the composition of garbage at the Southern Environmental Center. The swamp exhibit at the Mississippi Museum of Natural Science inspires Katelyn and Blake to check out the characteristics of alligator habitats along the Mississippi River. The Marshall Space Flight Center in Huntsville will floor you in the Science Secret.

Repeat Broadcasts:

  • KQED Kids: Mon, Dec 3, 2012 -- 4:30 AM
  • KQED Kids: Sun, Dec 2, 2012 -- 10:30 PM
  • KQED Kids: Sun, Dec 2, 2012 -- 4:00 PM
  • KQED Kids: Sun, Dec 2, 2012 -- 4:30 AM
  • KQED Kids: Sat, Dec 1, 2012 -- 10:30 PM
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TV Technical Issues

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    TV Technical Issues
    • KQET (DT25) Over the Air: Wed 8/27

      We are aware of the break-up issues for our DT25 Over the Air signal in the Monterey/Salinas area. This will also affect viewers of any cable or satellite signal provider using that transmitter as their source. Engineers are working on the problem.

    • Week of 8/25: Sutro Tower work (including KQED 9 Over the Air)

      (Affects several San Francisco TV & Radio stations, including KQED 9.1, 9.2 & 9.3) During the week of August 25, Monday through Friday, between 9am and 4pm, several TV and radio stations will be switching to their Auxiliary antennas. This is being done so that the tower crew can perform routine maintenance on the regular […]

    • KQET Off Air Sun 8/03 morning

      (DT25.1, 25.2, 25.3) KQET DT25 was off the air for a portion of Sunday morning, due to the transmitter taking a power hit. The signal has been restored. Most receivers should have re-acquired our signal once it returned, but a few Over the Air viewers may need to do a rescan in order to restore […]

To view previous issues and how they were resolved, go to our TV Technical Issues page.

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