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this post was submitted on 08 Sep 2023
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Asklemmy
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Time relativity always boggles my brain, I accept the fact but I find crazy that if I strap my twin and his atomic clock to a rocket and send them out to the stratosphere at the speed of light, when they return he'll be younger than me and his clock will be running behind mine. Crazy
I wish we could test this out with only simple apparatus. Unfortunately the common people do not have access to satellites or nonstop bullet trains.
We can and do. GPS satellites need to be regularly calibrated to Earth clock signals or they'll start to drift their calibration by meters per day.