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HOW RELATIVISTIC TIME DILATION AND GPS ARE RELATED
http://www.scienceofgadgets.com/post/how-relativistic-time-dilation-and-gps-are-related
Einstein's theory of relativity is one of the most significant achievements in the history of science. All the more so as it has been developed by only one person. Many of the conclusions drawn from this theory are literally striking and seem completely unbelievable at first glance. One of the conclusions of the theory of relativity is that time itself is by no means absolute.
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(Article does continue. Zim.)
But I was thinking that someone had used satellites to actually measure gravitational time dilation.
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Einstein's 'Time Dilation' Gets Pinpoint Measure Thanks to Wayward Satellites
http://www.space.com/42641-einstein-gravitational-time-dilation-galileo-probes.html
The botched launch of two global-positioning satellites four years ago has proven to be a real gift to physicists.
Scientists have used the Galileo 5 and Galileo 6 spacecraft to measure "gravitational time dilation" more precisely than ever before, two new studies reported.
Gravitational time dilation, also known as gravitational redshift, is a key prediction of the theory of general relativity, which Albert Einstein published a century ago. Gravitational fields slow the passage of time; the closer a clock is to a massive object, the more slowly its hands will move, as seen by an outside observer.
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(This article does continue. Along with a mention of 'velocity time dilation.)
Zim.
Mad Poet Strikes Again.
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