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by closewith 938 days ago
GPS really is amazing. It's hard to believe it works at all.
1 comments
fragmede 938 days ago
My favorite part about GPS is that it only works because we understand relativity, proving Einstein right.
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dharmab 937 days ago
It would work without an understanding of relativity, but the accuracy would drop by about a meter. https://physics.stackexchange.com/a/128951
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