Hedy Lamarr born Hedwig Eva Maria Kiesler November 9 1914 January 19 2000 was an Austrianborn actress and technology inventor She was a film star during Hollywoods Golden Age After a brief early film career in Czechoslovakia including the controversial Ecstasy 1933 she fled from her first husband a wealthy Austrian ammunition manufacturer and secretly moved to Paris Traveling to London she met MetroGoldwynMayer studio head Louis B Mayer who offered her a movie contract in Hollywood She became a film star with her performance in Algiers 1938 Her MGM films include Lady of the Tropics 1939 Boom Town 1940 HM Pulham Esq 1941 and White Cargo 1942 Her greatest success was as Delilah in Cecil B DeMilles Bibleinspired Samson and Delilah 1949 She also acted on television before the release of her final film The Female Animal 1958 She was honored with a star on the Hollywood Walk of Fame in 1960 At the beginning of World War II she and avantgarde composer George Antheil developed a radio guidance system for Allied torpedoes that used spread spectrum and frequency hopping technology to defeat the threat of jamming by the Axis powers This system later became the basis for what is now known as Bluetooth Description above from the Wikipedia article Hedy Lamarr licensed under CCBYSA full list of contributors on Wikipedia