Its full, unglamorous name is Global Positioning System. Launched by the U.S. military in 1990, GPS is a network of 24 global positioning satellites that orbit the planet, beaming radio signals back ...
The Global Positioning Satellite (GPS) system can help you find yourself, or the nearest drycleaner, or a missing Christmas manger, or a hidden geocache. But our expectations of GPS are that it works ...
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