That sat navs rely on relativity.
If sat navs didn’t take account of the fact that time passes more slowly for geostationary satellites than it does on the surface of the Earth, they would be out by more than 7 miles per day!
That sat navs rely on relativity.
If sat navs didn’t take account of the fact that time passes more slowly for geostationary satellites than it does on the surface of the Earth, they would be out by more than 7 miles per day!