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generalparesis

Listed below are comments made by generalparesis between Wednesday, 25th March 2009 and Wednesday, 25th March 2009.

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Ada Lovelace Day 05:19am on 25 Mar 2009 Hedy Lamarr was one of the most popular Hollywood actresses of the 1930s and 40s. But she also played a part in making today’s digital mobile phone calls harder to intercept and monitor.

Away from the MGM studios, Lamarr (a.k.a. Hedwig Keisler Markey) worked in the field of radio physics during the Second World War, and (with her close friend, musician George Antheil) basically invented the “spread spectrum” technique of radio communications — the transmission of a radio signal in a complex pattern, which reduces the chances of a signal being intercepted or the location of its transmitter identified.

Read more here: http://jacketmagazine.com/01/hedy.html

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