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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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Baby, It's Cold Outside

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Mystery Box

Snowflake Safari

\tWinter weather means more than sledding and snowmen. Next snowstorm, grab a magnifying glass and try snowflake hunting. Bullet rosettes, stellar plates, and capped columns are just a few of the varieties of snow crystal you can find in your backyard. Kenneth Libbrecht, physicist at Caltech and snowflake expert, shares secrets of the snowflake.

\tVideo originally published on ScienceFriday.com on December 31, 2009

Science Friday® is produced by the Science Friday Initiative, a 501(c)(3) nonprofit organization.

Science Friday® and SciFri® are registered service marks of Science Friday, Inc. Site design by Pentagram; engineering by Mediapolis.

 

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