General Relativity Explains Everything

We need to use general relativity pretty much every minute of every day, if you've got a smart phone or using g p s. It works out your position on the surface of the earth relative to globing globalposition,. And at any one time there could be either, know, five or six about the horizon. So it works out your relative to those and thatThose satellites dey actually carry clocks, very, very accurate clocks. When they swing in close to the earth, they're in stronger gravity, an the clocks slow down. And when they swing back out again, the clocks speed up. If it didn't, you would get your position wrong by an extra 50 meters every