In 1942, Hedy Lamarr co-patented a system to protect torpedo signals; 55 years later, the Hollywood star received recognition for her wireless innovation

Hedy Lamarr invention: Actress Hedy Lamarr and composer George Antheil developed a frequency-hopping communication system. Their 1942 patent aimed to prevent radio signal jamming for torpedoes. The United States Navy did not adopt their invention at that time. Later, their work influenced modern wireless technologies like Bluetooth and Wi-Fi.