GPS uses tiny robots in space to find you! Imagine a group of friendly robots floating around the Earth. Each robot sends a message to your phone telling it how far away it is. Your phone listens to all these messages and figures out where it must be, like solving a fun puzzle with distances from four different friends.
Examples
- Your phone finds your way home by listening to four satellites telling it how far away they are.
- You use GPS on a hike and know exactly where you are, thanks to the robots in space.
- Your car knows when to turn right because of messages from satellites above.
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See also
- How Do We Know Where We Are in the World?
- How Do ‘Smartphones’ Know Where We Are Without GPS?
- How Do Smartphones Know Where We Are?
- How Do Maps Know Where You Are?
- How Do Smartphones Know Where You Are?
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