![]() ![]() ![]() It's hard to imagine a world without GPS, suffice to say we'd be lost. And critically, emergency services use GPS to locate callers from their phone signal, the satellite communications could possibly save your life. ![]() We depend on Global Navigation Satellite Systems (GNSS) for anything from the GPS services on your phone, to travel information and supermarket just-in-time stock management to make sure produce arrives as fresh and as quickly as possible. "There are a number of satellite missions that society depends on that just wouldn't work," James Davis, a geophysicist at Columbia University's Lamont-Doherty Earth Observatory, said in a statement "I cannot think of how GPS would work on a flat Earth," said Davis. It is likely that satellites would not exist if the Earth were flat, as they would have trouble orbiting a flat plane. It’s hard to imagine a world without GPS, suffice to say we’d be lost! (Image credit: Blend Images - Diego Cervo via Getty) ![]()
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