"Hedy Lamarr (/ˈheɪdi/), born Hedwig Eva Maria Kiesler; November 9, 1914[a] – January 19, 2000) was an Austrian-born American film actress and inventor.
At the beginning of World War II, she and 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. Although the US Navy did not adopt the technology until the 1960s, the principles of their work are incorporated into Bluetooth technology and are similar to methods used in legacy versions Wi-Fi. This work led to their induction into the National Inventors Hall of Fame in 2014."