Relativity on a Human Scale: "Optical Clocks and Relativity"

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Relativity on a Human Scale: "Optical Clocks and Relativity"

PostPosted by verdilak » Thu Nov 18, 2010 5:20 pm wrote:Can you explain the smallness of this shift in some way that involves lots of zeroes? Sure. The stationary clock ticks 1,120,000,000,000,000 times every second. If you added up all the ticks for 100 seconds, the total for the elevated clock would be greater than that for the stationary clock by right around 5 ticks.

Yeah, that's pretty amazing, all right. Yes it is. And it's in good agreement with what you would expect from general relativity.

So, what's the take-home message from all this? Basically, that Einstein was right. The predictions that relativity makes about the slowing of clocks due to motion or gravitation, as weird as they may seem, are really true, and verified even at everyday speeds and elevations. We don't notice these changes because they're so tiny, but with good enough measuring apparatus, we can pick them up, and they agree nicely with the predictions of relativity.

So crazy people trying to argue that relativity is wrong have their work cut out for them? Even more than they did before. Not that this will stop them, being crazy people, but for the non-crazy among us, this is a beautiful confirmation of the theory.

There is more at the link, but this is very awesome.
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