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February 25, 1899: The first fatal collision of a petrol powered vehicle occurs in Grove Hill Harrow, England. The car, a Daimler Wagonette, was being demonstrated by a Mr Sewell to a Major Richer, department head of the Army & Navy Stores. Mr Sewell was killed on the spot. Major Richer, died four days later and became the first British passenger to die in a car accident.
February 26, 1935: RADAR (RAdio Detection And Ranging) is demonstrated to Air Ministry officials at Daventry, England, by Robert Watson-Watt, a Scottish physicist. While working on methods of using radio-wave detection to locate thunderstorms in order to provide warnings to airmen, Watson-Watt realised that it could be used to track enemy aircraft for air defense. The test showed that a RAF Heyford bomber flying in the main beam of a BBC short-wave radio transmitter gave back reflected signals to the ground on three occasions that the aircraft passed overhead. By 1939 the military had installed a chain of radar stations along the east and south coasts of England to warn of a German invasion.