Answer ( 1 )

  1. Sir Robert Alexander Watson-Watt  invented Radar.

    As per Wikipedia “Sir Robert Alexander Watson-Watt, KCB, FRS, FRAeS (13 April 1892 €“ 5 December 1973) was a pioneer and significant contributor to the development of radar. Radar was initially nameless and researched elsewhere but it was greatly expanded on 1 September 1936 when Watson-Watt became Superintendent of a new establishment under the Air Ministry, Bawdsey Research Station near Felixstowe, Suffolk. Work there resulted in the design and installation of aircraft detection and tracking stations called Chain Home along the east and south coasts of England in time for the outbreak of the Second World War in 1939. This system provided the vital advance information that helped the Royal Air Force win the Battle of Britain.”

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