The Brains Behind the Invention of GPS

The Global Positioning System, or GPS, is a tool that we use in our everyday lives. It relies on 31 operational GPS satellites traveling around the Earth 24/7 to provide us with on-demand directions, events and restaurant recommendations based on location, and even the correct time on our smartphones and computers. Who do we have to thank for this service? Well, hundreds of people, but here are four important contributors who stick out: Roger L. Easton, Bradford Parkinson, Ivan Getting, and Gladys West.

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