Probably better-known for her salacious movie career, amateur engineer Lamarr’s wartime invention earned her the title of “mother of WiFi”. She came up with a method of sending radio signals by making them jump between channels called frequency-hopping out of a desire to help the Navy deploy radio-guided torpedoes without enemy interference during World War II.
The ‘mother of WiFi’ gets her due in a new documentary - “Bombshell” offers a comprehensive look at the many stages of Hedy Lamarr’s storied life.