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Wednesday, November 14, 2007

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Relativity passes new test of time

Einstein’s famous tenet of special relativity — that time slows down on a moving clock — has been verified 10 times more precisely than ever before. The result comes from physicists in Germany and Canada, who have timed the “ticking” of lithium ions as they hurtle around a ring at a fraction of the speed of light.

De Abril deste ano: Gravity Probe B backs general relativity

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