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Rutherfordium is a chemical element with symbol Rf and atomic number 104, named in honor of physicist Ernest Rutherford.
â¢ Memo drafted by Watson Watt on February 12, 1935: âDetection of Aircraft by Radio Methodsâ. â Memo earned Watson Watt the title of âthe father of radarâ. â Term âRADARâ officially coined as an acronym by U.S. Navy Lt. Cmdr. Samuel M. Tucker and F. R. Furth in November 1940 â¢ The Daventry experiment â February 26, 1935 â First recorded detection of aircraft by radio waves â Began the full-speed-ahead development of radar for use in the coming war 6