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Physics, Astronomy & Cosmology / Re: What does the term 'time' relate to in time dilation?
« on: 10/12/2018 02:27:27 »
For the purposes of the OP's question we can say clocks measure rates of change. A quartz crystal on earth would appear to vibrate more slowly if an astronaut could observe it from the space station. And the astronaut would see a quartz clock on earth running slower than a quartz clock on the space station.
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