<RX DJH PRUH TXLFNO\ RQ WKH WRS RRU RI D EXLOGLQJ WKDQ RQ WKH ERWWRP RRU DQRWKHU ef­fect of Ein­stein’s the­ory of grav­ity

Sky at Night Magazine - - MYSTERIOUS GRAVITY -

Ac­cord­ing to Ein­stein’s the­ory of grav­ity, the gen­eral the­ory of rel­a­tiv­ity, time flows more slowly in stronger grav­ity. On the top floor of build­ing, you are far­ther from the mass of Earth than at the bot­tom, so grav­ity is marginally weaker and you age more quickly – so if you want to live longer, should you find your­self a bun­ga­low? It is a fan­tas­ti­cally small ef­fect and you would need the most sen­si­tive atomic clocks to show it. Re­mark­ably, how­ever, in 2010 physi­cists at the Na­tional In­sti­tute of Stan­dards Tech­nol­ogy in the US demon­strated, with the aid of two atomic clocks, that a per­son stand­ing on one step of a stair­case ages more slowly than some­one stand­ing on the step above.

It’s true that the higher you are on Earth the quicker you age, but the dif­fer­ence is minis­cule

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