more than 11 km per day · All Facts

more than 11 km per day
Without Einstein's relativity corrections, GPS satellite clock errors would build navigational mistakes of more than 11 km per day — enough to make the system useless.
SrcPhysics Today (Ashby, 2002)

Next evidence →55 languagesEach Voyager Golden Record carries greetings in 55 languages, natural sounds, music, and a printed message from President Carter — selected for NASA by a Carl Sagan–led committee.

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