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GPS systems must correct for Einstein's relativity because satellite clocks run differently from clocks on Earth.

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Why it matters

The idea in context

GPS satellites move fast and sit high in weaker gravity, so their clocks drift from ours; without correcting for Einstein's relativity, navigation would fail within a day.

Türkçe

Aynı kart, başka bir dilde.

GPS sistemleri Einstein'ın göreliliğine göre düzeltme yapmak zorundadır; çünkü uydu saatleri Dünya'daki saatlerden farklı işler.

GPS uyduları hızlı hareket eder ve daha zayıf kütleçekiminde, yüksekte durur; bu yüzden saatleri bizimkinden kayar; Einstein'ın görelilik düzeltmesi olmadan, seyir bir gün içinde bozulurdu.

Source trail

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Background reading: Albert EinsteinAttribution and context are revised when stronger evidence appears. Corrections are welcome through the editorial page.
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