Today, in honour of Ada Lovelace day, 1800 bloggers have taken a pledge to write about a woman in technology. I’m one of those bloggers.
First off, a bit about Ada because I don’t know how many people are familiar with her. The only legitimate child of Lord Byron, she was born in 1815 and met Charles Babbage in 1833. In 1841-42, while translating Luigi Menabrea’s memoir on Babbage’s newest proposed machine, Analytical Engine, she also wrote a set of notes. That set of notes contains in complete detail a method for calculating Bernoulli numbers with the Engine, recognized by historians as the world's first computer program.
Now there are quite a few women in technology. Not as many as men and certainly not as famous. Well, the one I am going to talk about today was famous, but for different reasons. Hedy Lamarr was born in 1913, in Vienna. In 1937, she disguised herself as one of her maids and fled to Paris, where she obtained a divorce from her first husband(who, despite being part Jewish, was consorting with Nazi industrialists, up to the point where Mussolini and Hitler attended his parties). After her divorce she moved to London and later on to Los Angeles. There she made her debut in American films(she had already starred in 5 movies prior to her move) with Algiers. She is possibly best known for her roles as Delilah in Cecil B. DeMille Samson and Delilah as opposite Bob Hope in My favorite Spy. She appeared in more than 35 movies and almost managed to have more husbands than Liz Taylor(she stopped at 6 so Liz still wins).

So what does this glamour queen on the 40’s have to do with technology? Well, in 1942 her and her husband at the time, George Antheil(a composer, so next time you decide to mock either an actress or a composer for being dumb and not understanding real science you should remember this) were granted a patent for a Secret Communication System. This early version of frequency hopping used a piano roll to change between 88 frequencies and was intended to make radio-guided torpedoes harder for enemies to detect or jam. It wasn’t implemented by the USA until 1962, when it was used by military ships during a blockade in Cuba.
Still not impressed? Then I suppose I should tell you that the frequency-hopping idea serves as a basis for modern spread-spectrum communication technology, such as COFDM used in WiFi network connections and CDMA used in some cordless and wireless telephones.
So go out tonight and have a drink in honor of Ada, Hedy and all the other women in technology.