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September 28, 2010

World's Most Precise Clocks Test Relativity

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The world's most precise clocks can reveal tiny time dilations predicted by Einstein's theory of relativity -- but that's not all. Tom O'Brian of the National Institute for Standards and Technology talks about using these precise clocks in everything from cell phones to satellites.

harry reid john mccain al gore bill clinton newt gingrich

Posted by feylontina feylontina

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