Remembering the engineer and mathematician — Hedy Lamarr revisited

GOOGLE reminded us, today would have been Hedy Lamarr’s 101st birthday. Here’s why I remember Hedy Lamarr.

Hedy Lamarr

Born in Austria in 1914, the mathematically talented Lamarr moved to the US in 1937 to start a Hollywood career. Throughout the 1930s and 1940s, she was considered one of cinema’s leading ladies and made numerous films; however, her passion for engineering is far less known today. Her interest in inventing was such that she set up an engineering room in her house complete with a drafting table and wall of engineering reference books.

With the outbreak of World War II, Lamarr wanted to apply her skills to helping the war effort and, motivated by reports of German U-boats sinking ships in the Atlantic, she began investigating ways to improve torpedo technology. After Lamar met composer George Antheil, who had been experimenting with automated control of musical instruments, together they hit on the idea of “frequency hopping.” At the time, radio-controlled torpedoes could easily be detected and jammed by broadcasting interference at the frequency of the control signal, thereby causing the torpedo to go off course. Frequency hopping essentially served to encrypt the control signal because it was impossible for a target to scan and jam all of the frequencies.

Lamarr and Antheil were granted a patent for their invention on August 11, 1942, but the US Navy wasn’t interested in applying their groundbreaking technology until twenty years later when it was used on military ships during a blockade of Cuba in 1962. Lamarr and Antheil’s frequency-hopping concept serves as a basis for the spread-spectrum communication technology used in GPS, Wi-Fi and Bluetooth devices. Unfortunately, Lamarr’s part in its development has been largely overlooked and her efforts weren’t recognized until 1997, when the Electronic Frontier Foundation gave her an award for her technological contributions. Hedy Lamarr passed away in 2000 at the age of 85.

Thanks, Ursarodinia

2 thoughts on “Remembering the engineer and mathematician — Hedy Lamarr revisited

  1. Cinemaphile says:

    “How Director Alexandra Dean Revealed a Silver-Screen Bombshell’s Ingenious Invention :
    Hedy Lamarr was promoted as “the most beautiful woman in the world.” She also helped create a technology that’s now in our cell phones.” https://psmag.com/social-justice/a-silver-screen-bombshells-ingenious-invention
    Review: ‘Bombshell’ Tells the Amazing Story of Hedy Lamarr, the Star and Inventor (NYT) https://www.nytimes.com/2017/11/23/movies/bombshell-the-hedy-lamarr-story-review-.html
    Bombshell: The Hedy Lamarr Story – official US trailer https://www.youtube.com/watch?v=BKXAkITImGU also Howard Hughes clip https://www.youtube.com/watch?v=d5Rox3Ez2ZQ “Ekstase” (Ecstasy) with Hedy Lamarr. (1933) Complete film https://www.youtube.com/watch?v=6e41ZtIfoek

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