Sir William John Granville Beynon, CBE, FRS (24 May 1914 in Dunvant – 11 March 1996 in Aberystwyth)[1] was a Welsh physicist.
William John Granville Beynon was born in Dunvant, near Swansea, Wales on 24 May 1914, the youngest of four children.
His father, a miner, held the responsible jobs of checkweightman and chief of the local mines rescue service.
In 1938 he gained a position at National Physical Laboratory at Slough, near London, working closely with Sir Edward Appleton.
[5][2] His perseverance saved the European Radar project EISCAT, by which progress was reached in understanding particular atmospheric phenomena at high latitudes.