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Hedy Lamarr (/ ˈ h ɛ d i /; born Hedwig Eva Maria Kiesler; November 9, 1914 [a] – January 19, 2000) was an Austrian-born American actress and inventor. After a brief early film career in Czechoslovakia, including the controversial erotic romantic drama Ecstasy (1933), she fled from her first husband, Friedrich Mandl, and secretly moved to Paris.
1908: Frequency-hopping spread spectrum in radio work was described by Johannes Zenneck (1908), Leonard Danilewicz (1929), [60] Willem Broertjes (1929), and Hedy Lamarr and George Antheil (1942 US patent).
The following is a list of celebrity inventors and their patents. (For the purposes of this article, an inventor is a person who has been granted a patent.)After Google released a patent search [1] online in December 2006, a website called Ironic Sans, [2] made the public aware of a number of celebrity patents found through the new patent search engine.
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Marian Cleeves Diamond (November 11, 1926 – July 25, 2017) was an American neuroscientist.She and her team were the first to publish evidence that the brain can change with experience and improve with enrichment, what is now called neuroplasticity.
In 1942, actress Hedy Lamarr and composer George Antheil received U.S. patent 2,292,387 for their "Secret Communications System", [9] [10] an early version of frequency hopping using a piano-roll to switch among 88 frequencies to make radio-guided torpedoes harder for enemies to detect or jam.
Frequency illusion is common in the linguistic field. Zwicky, who coined the term frequency illusion, is a linguist himself. He gave the example of how linguists "working on innovative uses of 'all,' especially the quotative use," believed their friends used the quotative "all" in conversation frequently.
The concept of Frequency-hopping was adopted by the German radio company Telefunken and also described in part of a 1903 US patent by Nikola Tesla. [3] [4] Radio pioneer Jonathan Zenneck's 1908 German book Wireless Telegraphy describes the process and notes that Telefunken was using it previously. [2]