Born 8 June 1903 at Cwmsychpant, Cardiganshire, the son of James Williams, mason and Elizabeth (née Lloyd), his wife. He proceeded from the primary school at Llanwenog to the county school at Llandysul, and from there to the University College of Swansea, where he took a first-class honours degree in physics in 1923. He pursued scientific researches at Swansea, Manchester and Cambridge, and had obtained the degrees of Ph.D. (Manc.), Ph.D. (Cantab.) and D.Sc. (Wales) by 1930. Between 1929 and 1938 he was lecturer successively at the Universities of Manchester and Liverpool, and he was for a session (1933-34) at the University of Copenhagen. In 1938 he was appointed to the chair of physics at Aberystwyth, but his career there was interrupted by the outbreak of war, and from 1939 to 1945 he was engaged in scientific research in connection with the armed forces. He was elected F.R.S. in 1939. He was a scientific officer at the Royal Air Force establishment at Farnborough, 1939-41, director of research for the R.A.F. Coastal Command, 1941-42, scientific adviser to the Navy on methods of combating submarines, 1943-44, and assistant director of research in the Navy, 1944-45. He died 29 September 1945. A list of his publications and an appreciation of his work as a scientist and of the significant part which he played in the battle against submarines are given by P.M.S. Blackett in Obituary Notices of Fellows of the Royal Society, vol 5, No. 15, 1947.
Published date: 2001
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