"
Any girl can be glamorous. All you have to do is stand still and look stupid."
Hedy Lamarr
And the same Hedy Lamarr:
"The most celebrated use of frequency hopping was a patent awarded to actress
Hedy Lamarr and composer
George Antheil, who in 1942 received
U.S. Patent 2,292,387 for their "Secret Communications System". This intended early version of frequency hopping was supposed to use a
piano-roll to change among 88 frequencies, and was intended to make radio-guided
torpedoes harder for enemies to detect or to jam, but there is no record of a working device ever being produced. The patent was rediscovered in the 1950s during patent searches when private companies independently developed
Code Division Multiple Access, a non-frequency-hopping form of spread-spectrum, and has been cited numerous times since."