GPS clocks need Einstein's relativity to work
GPS satellites must constantly adjust their clocks for Einstein's relativity, proving the theory is vital for accurate navigation and modern technology.
GPS relies on incredibly precise timing, but without Einstein's theory of relativity, it would be useless. Satellites orbit Earth at high speeds, making their clocks run slower due to special relativity. However, weaker gravity in space makes them run faster, a general relativity effect. The net result is clocks gaining 38 microseconds daily compared to Earth.
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