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|religion = Christian |footnotes = |signature = }} Sir John Douglas Cockcroft (27 May 1897 – 18 September 1967) was a British physicist. He shared the Nobel Prize in Physics for splitting the atomic nucleus with Ernest Walton, and was instrumental in the development of nuclear power. He was the first Master of Churchill College and is buried at the Parish of the Ascension Burial Ground in Cambridge, together with his wife Elizabeth and son John, known as Timothy, who had died at the age of two in 1929. ==Early years== Cockcroft was born in Todmorden, West Yorkshire, England, the eldest son of a mill owner. He was educated at Todmorden Secondary School (1909–1914) (where his physics teacher, Luke Sutcliffe, would later tutor another future Nobel Prize-winner, Geoffrey Wilkinson) and studied mathematics at the Victoria University of Manchester (1914–1915). He was a signaller in the Royal Artillery from 1915 to 1918. After the war ended, he studied electrotechnical engineering at UMIST from 1919 until 1920. He undertook an apprenticeship with Metropolitan Vickers Electrical Company whilst in receipt of an 1851 Exhibition Scholarship from the Royal Commission for the Exhibition of 1851.〔1851 Royal Commission Archives〕 He then went to St. John's College, Cambridge, from where he received a mathematics degree in 1924, and began research work under Ernest Rutherford. In 1929 he was elected a Fellow of St. John's College; in 1939, he became Jacksonian Professor of Philosophy. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「John Cockcroft」の詳細全文を読む スポンサード リンク
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