Science Friday Video Podcast

Science Friday, as heard on NPR, is a weekly discussion of the latest news in science, technology, health, and the environment hosted by ...
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Video Episodes:

This Dome Is A Home
528 Views
15:10:00 09/30/11

Kevin Shea lives in a 70-foot in diameter, forest-green, geodesic dome. It is equipped with a solar array, a wind turbine, and a geothermal system. Shea makes biod...

This Dome Is A Home

Added 09/30/11
528 Views

This Dome Is A Home

[LESS INFO] 528 VIEWS | ADDED 15:10:00 09/30/11
Kevin Shea lives in a 70-foot in diameter, forest-green, geodesic dome. It is equipped with a solar array, a wind turbine, and a geothermal system. Shea makes biodiesel in a shed outback. His garden is constructed of 800 old tires. Take a tour of Shea's dome home.

Purifying Water Wit...
642 Views
15:10:00 09/16/11

New York is testing out a new water scrubber at one of its wastewater treatment plants in Queens. Meet the algal turf scrubber--two 350-foot slides covered in gree...

Purifying Water With Pond Scum

Added 09/16/11
642 Views

Purifying Water With Pond Scum

[LESS INFO] 642 VIEWS | ADDED 15:10:00 09/16/11
New York is testing out a new water scrubber at one of its wastewater treatment plants in Queens. Meet the algal turf scrubber--two 350-foot slides covered in green algae. Water flows down the slides, algae grows naturally, and then cleans the water sent over it.

Stalking The Wild M...
506 Views
15:10:00 09/09/11

From death caps to puffballs, the fruiting bodies of fungi can be grouped into about a dozen major categories. Mycologist Roy Halling walks us through the wide wor...

Stalking The Wild Mushroom

Added 09/09/11
506 Views

Stalking The Wild Mushroom

[LESS INFO] 506 VIEWS | ADDED 15:10:00 09/09/11
From death caps to puffballs, the fruiting bodies of fungi can be grouped into about a dozen major categories. Mycologist Roy Halling walks us through the wide world of mushrooms and takes us on a fungi foraging foray on the grounds of the New York Botanical Garden.

Stroke Of The Water...
633 Views
15:10:00 08/26/11

Water striders don't really stride, they row on the water. But their legs are spindly and don't seem good for paddling. To find out exactly how water striders prop...

Stroke Of The Water Strider

Added 08/26/11
633 Views

Stroke Of The Water Strider

[LESS INFO] 633 VIEWS | ADDED 15:10:00 08/26/11
Water striders don't really stride, they row on the water. But their legs are spindly and don't seem good for paddling. To find out exactly how water striders propel themselves mechanical engineer David Hu, of Georgia Tech, filmed them rowing on food coloring and built his own robostrider.

Poop And Paddle
464 Views
15:10:00 08/19/11

Green builder Adam Katzman wanted to experiment with building a “constructed wetland” to process sewage. Then he wanted to make the whole thing float. His paddle-b...

Poop And Paddle

Added 08/19/11
464 Views

Poop And Paddle

[LESS INFO] 464 VIEWS | ADDED 15:10:00 08/19/11
Green builder Adam Katzman wanted to experiment with building a “constructed wetland” to process sewage. Then he wanted to make the whole thing float. His paddle-boat-toilet, parked at a marina in Queens, demonstrates how rainwater and human waste can be converted to plants and clean water. It’s a zero-waste waste disposal system.

Boost Your Bike
556 Views
15:10:00 08/12/11

Maxwell von Stein, a 22 year-old Cooper Union graduate, built a bicycle that uses a flywheel to store energy. Instead of braking, he can slow the bicycle by transf...

Boost Your Bike

Added 08/12/11
556 Views

Boost Your Bike

[LESS INFO] 556 VIEWS | ADDED 15:10:00 08/12/11
Maxwell von Stein, a 22 year-old Cooper Union graduate, built a bicycle that uses a flywheel to store energy. Instead of braking, he can slow the bicycle by transferring the kinetic energy from back wheel into the flywheel--which spins between the bars of the frame. Then Max can send the flywheel energy back to the wheel when he wants a boost.

Where's The Octopus?
630 Views
15:10:00 08/05/11

When marine biologist Roger Hanlon captured the first scene in this video he started screaming. He studies camouflage in cephalopods--squid, octopus and cuttlefish...

Where's The Octopus?

Added 08/05/11
630 Views

Where's The Octopus?

[LESS INFO] 630 VIEWS | ADDED 15:10:00 08/05/11
When marine biologist Roger Hanlon captured the first scene in this video he started screaming. He studies camouflage in cephalopods--squid, octopus and cuttlefish. They are masters of optical illusion and these are some of Hanlon's top video picks of the animals going in and out of hiding.

Tending Crops On A ...
459 Views
15:10:00 07/29/11

A rooftop farm in Brooklyn grows vegetables and doubles as a green roof, insulating the warehouse below. Green roofs save money on cooling and heating costs and al...

Tending Crops On A Brooklyn Rooftop

Added 07/29/11
459 Views

Tending Crops On A Brooklyn Rooftop

[LESS INFO] 459 VIEWS | ADDED 15:10:00 07/29/11
A rooftop farm in Brooklyn grows vegetables and doubles as a green roof, insulating the warehouse below. Green roofs save money on cooling and heating costs and also retain water, reducing the load on sewer systems. Annie Novak, head farmer and co-founder of Eagle Street Rooftop Farm gives us a tour.

Engineering Artific...
557 Views
15:10:00 07/22/11

Cilia--the little hairs that propel a paramecium--flap spontaneously, and will synchronize their movements with neighboring cilia. But exactly why they do this has...

Engineering Artificial Cilia

Added 07/22/11
557 Views

Engineering Artificial Cilia

[LESS INFO] 557 VIEWS | ADDED 15:10:00 07/22/11
Cilia--the little hairs that propel a paramecium--flap spontaneously, and will synchronize their movements with neighboring cilia. But exactly why they do this has been hard to pinpoint because cilia are complicated structures. So researchers fabricated knockoffs, with fewer components, to see if they could figure out what drives the waving.

CFL: Eyesore Or Sig...
517 Views
15:10:00 07/15/11

Just Bulbs, on New York City's Upper East Side, sells just bulbs. There are 36,000 different kinds of lightbulbs in the store, says owner David Brooks. And althoug...

CFL: Eyesore Or Sight For Sore Eyes

Added 07/15/11
517 Views

CFL: Eyesore Or Sight For Sore Eyes

[LESS INFO] 517 VIEWS | ADDED 15:10:00 07/15/11
Just Bulbs, on New York City's Upper East Side, sells just bulbs. There are 36,000 different kinds of lightbulbs in the store, says owner David Brooks. And although customers regularly rail about how compact fluorescent bulbs are ugly, Brooks argues that they've been unfairly maligned. They come in six color temperatures and a wide variety of shapes and sizes.

A Compost Guru Shar...
415 Views
15:10:00 07/08/11

Malcolm Beck was farming organically in the 1950s, and that's how he got into compost. What started out as a little manure pile on his farm became a 40-acre compos...

A Compost Guru Shares His Secrets

Added 07/08/11
415 Views

A Compost Guru Shares His Secrets

[LESS INFO] 415 VIEWS | ADDED 15:10:00 07/08/11
Malcolm Beck was farming organically in the 1950s, and that's how he got into compost. What started out as a little manure pile on his farm became a 40-acre compost-processing business five decades later. Beck sold his company, Garden Ville, but still works there and is constantly experimenting with different fertilizer formulas--from bat guano to earthworm tea.

How Humpbacks Hunt ...
472 Views
15:10:00 07/01/11

Humpbacks whales blow bubbles around schools of fish to concentrate them for easier capture. Although this hunting technique, called bubble-net feeding, has been d...

How Humpbacks Hunt With Bubbles

Added 07/01/11
472 Views

How Humpbacks Hunt With Bubbles

[LESS INFO] 472 VIEWS | ADDED 15:10:00 07/01/11
Humpbacks whales blow bubbles around schools of fish to concentrate them for easier capture. Although this hunting technique, called bubble-net feeding, has been documented for decades, just how whales make the nets wasn't well-understood until now, says biologist David Wiley.

Young Inventors Sou...
523 Views
15:10:00 06/24/11

In the basement of Staten Island Technical High School, a group of students meets regularly to build and invent. Their award-winning wheelchair prototype can spin ...

Young Inventors Soup Up A Wheelchair

Added 06/24/11
523 Views

Young Inventors Soup Up A Wheelchair

[LESS INFO] 523 VIEWS | ADDED 15:10:00 06/24/11
In the basement of Staten Island Technical High School, a group of students meets regularly to build and invent. Their award-winning wheelchair prototype can spin in circles and has a built-in massage function.

Lab-Grown Heart
629 Views
15:10:00 06/10/11

Build them the right home and cells will organize themselves into a tissue, says bioengineer Gordana Vunjak-Novakovic. We stopped by the lab to see a little piece ...

Lab-Grown Heart

Added 06/10/11
629 Views

Lab-Grown Heart

[LESS INFO] 629 VIEWS | ADDED 15:10:00 06/10/11
Build them the right home and cells will organize themselves into a tissue, says bioengineer Gordana Vunjak-Novakovic. We stopped by the lab to see a little piece of beating heart muscle they grew in the lab and keep in an incubator in the corner.

Sun Spotting
561 Views
15:10:00 06/03/11

Using the Swedish Solar Telescope, a ground-based observatory, Goran Scharmer and colleagues probe the penumbra--that's the stringy structure around the perimeter ...

Sun Spotting

Added 06/03/11
561 Views

Sun Spotting

[LESS INFO] 561 VIEWS | ADDED 15:10:00 06/03/11
Using the Swedish Solar Telescope, a ground-based observatory, Goran Scharmer and colleagues probe the penumbra--that's the stringy structure around the perimeter of the dark part of a sunspot.

Tale Of Two Tongues
507 Views
15:10:00 05/27/11

Tongues are important, biologists say. Two recent studies explore tongue design and function--how they are used for lapping by dogs and for nectar retrieval by hum...

Tale Of Two Tongues

Added 05/27/11
507 Views

Tale Of Two Tongues

[LESS INFO] 507 VIEWS | ADDED 15:10:00 05/27/11
Tongues are important, biologists say. Two recent studies explore tongue design and function--how they are used for lapping by dogs and for nectar retrieval by hummingbirds.

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This Dome Is A Home

Show: Science Friday Video Podcast

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This Dome Is A Home
09/30/11

Kevin Shea lives in a 70-foot in diameter, forest-green, geodesic dome. It is equipped with a solar array, a wind turbine, and a geothermal system. Shea makes biodiesel in a shed outback. His garden is constructed of 800 old tires. Take a tour of Shea's dome home.