The Joe Rogan Experience
#2217 - Brian Cox
Brian Cox
It's one foot per nanosecond. So that's 30,000 feet of position measurement. if you drift your clock out by 30,000 nanoseconds. So it wouldn't work. So it's a big effect for when you start using time to measure distance, which is what we do in satellite navigation, GPS. So we have to correct. So the clocks have to be corrected for that effect.
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