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Hedy Lamar, a Hollywood star who invented GPS

        

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Hedy Lamarr was called the “most beautiful woman in the world” in her day. But what most don’t know is that she had the brains to match her beauty, she invented “spread spectrum communications” and “frequency hopping”. The U.S. Navy eventually applied this technology to radios used during the Cuban Missile Crisis, and it went on to shape modern technologies such as GPS, Bluetooth in headsets and phones, and U.S. military guided missiles.

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