Science on the 29th of December 1905 in history

Science

Date	Type	Text
29 Dec 1905 Henri-Gaston Busignies	science	birth Henri-Gaston Busignies Born 29 Dec 1905; died 20 Jun 1981 at age 75. French-American electrronics engineer whose invention (1936) of high-frequency direction finders (HF/DF, or "Huff Duff") permitted the U.S. Navy during World War II to detect enemy transmissions and quickly pinpoint the direction from which a radio transmission was coming. Busignies invented the radiocompass (1926) while still a student at Jules Ferry College in Versailles, France. In 1934, he started developing the direction finder based on his earlier radiocompass. Busignies developed the moving target indicator for wartime radar. It scrubbed off the radar screen every echo from stationary objects and left only echoes from moving objects, such as aircraft.	0

28th December 1905 30th December 1905

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Science on the 29th of December 1905 in history

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