Thomas O'Brian

Sep. 24, 2010

Testing Relativity With Better Clocks

With a precise enough clock, it's possible to test the time-dilation effects predicted by Einstein's theory of relativity -- without a space ship.

time, relativity, clocks, einstein

Feb. 29, 2008

Telling Time: Leap Year, Leap Day

This Friday is a date that comes only once every 28 years - Friday, February 29th. We'll talk about leap years, leap days, and the finer points of telling time.

time, date, leap year, calendar

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Michael Pollan Talks Plants and Food

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Museum Mania

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Mystery Box

Medical Oddities from the Bowels of the Mütter

\t"Disturbingly informative," is how museum director Robert Hicks describes Philadelphia's Mütter Museum--items of interest include a gangrenous hand, wax models of extinct diseases, deformed bones and body parts. Now imagine what's in the basement. Science Friday got a behind-the-scenes tour.

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