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You use GPS to visit your grandma, and every package delivery on the planet uses a satellite-guided navigation system to arrive at its destination. Needless to say, GPS technology is pretty cool.

One of the fundamental technologies of modern gadgets is the Global Positioning System (GPS). Using signals from satellites orbiting the earth, a GPS receiver can pin down its location with remarka… ...

How GPS systems work Aided by the grid of satellites orbiting the earth, the global positioning system tells us where we are and where we have to go.