She was the "Most Beautiful Woman in the World," but her secret invention runs your Wi-Fi. Hedy Lamarr was a 1940s superstar, but her true passion was science. In 1942, she co-patented a "frequency hopping" system to stop Nazi's from jamming Allied torpedoes. The Navy ignored her, telling her to sell war bonds instead. Decades later, her technology became the foundation for Bluetooth, Wi-Fi, and GPS. She proved that genius is often hidden in plain sight. In 1997, she finally received an award fo