Leon Theremin
Russian inventor, physicist, and musician (1896-1993) · United States · On the map · Scientists · Died at 97
Lev Sergeyevich Termen, better known as Leon Theremin, was a Russian inventor, most famous for his invention of the theremin, one of the first electronic musical instruments and the first to be mass-produced. He also worked on early television research.
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His secret listening device, "The Thing", hung for seven years in plain view in the United States ambassador's Moscow office and enabled Soviet agents to secretly eavesdrop on conversations.
