The article comes close but does not mention one interesting piece of trivia. The frequency hopping device was made using (and inspired by) a pianoroll for an a

The article comes close but does not mention one interesting piece of trivia. The frequency hopping device was made using (and inspired by) a pianoroll for an autopiano. An instrument that Lamarr and her collaborator, composer Antheil would have been familiar with. In their scheme of things, the torpedo and the sub would play the same "song" and jump frequencies in sync. Their patent lay ignored till fairly recently EDIT: here is an Atlantic article that has more detail: http://www.theatlantic.com/technology/archive/2010/09/celebrity-invention-hedy-lamarrs-secret-communications-system/62377/ http://www.theatlantic.com/technology/archive/2010/09/celebr...