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Feb. 22, 2013

Ask a Dentist: Facts To Sink Your Teeth Into

An apple a day keeps the doctor away. And, it turns out, the dentist. Did you know that the fibery skin is good for your teeth?

dentist, dentistry, periodontist, orthodontist, teeth, oral surgeon, oral health, oral hygiene, toothbrush, toothpaste, dental floss, gums, tooth decay, plaque, tartar

Dec. 07, 2012

Ask an Astronaut: Don Pettit and Jeff Hoffman on Spaceflight

Two astronauts answer your questions and discuss the many curiosities of living in space.

astronaut, space shuttle, don pettit, international space station, rocket, mir, soyuz, weightlessness, zero gravity, life in space

Dec. 14, 2012

Ask a Quantum Mechanic

Teleporting data.. time travel.. quantum computers. Sci-fi or science reality? 'Quantum mechanic' Seth Lloyd joins us to talk about the mysteries of the quantum world.

physics, quantum mechanic, quantum computing

Jul. 27, 2012

Ask an Astrophysicist

Nobel Prize-winning astrophysicist Adam Riess takes your questions on dark energy and the cosmos.

astrophysics, astrophysicist, nobel prize winner, dark energy, cosmology, cosmologist, universe, expansion, space

AVAILABLE IN ITUNES

Michael Pollan Talks Plants and Food

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FEATURED PLAYLIST

Whale Tales

BOOKS BY OUR GUESTS

Mystery Box

How Humpbacks Hunt With Bubbles

Humpback whales blow bubbles around schools of fish to concentrate them for easier capture. It's called a bubble net, says David Wiley, research coordinator for Stellwagen Bank National Marine Sanctuary, and it's visible as a ring of bubbles at the surface. Now, with underwater digital tracking tags and custom visualization software, whale researchers can see what the whales are doing underwater when they're bubble-netting.

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