Tuesday 10 December 2013

Ernest Rutherford

Ernest Rutherford, 1st Baron Rutherford of NelsonOM FRS (30 August 1871 – 19 October 1937) was a New Zealand-born physicist who became known as the father of nuclear physics.
Encyclopedia Britannica considers him to be the greatest experimentalist since Michael Faraday (1791–1867).
He studied at Havelock School and then Nelson College and won a scholarship to study at Canterbury CollegeUniversity of New Zealand where he participated in the debating society and played rugby.
After gaining his BA, MA and BSc, and doing two years of research during which he invented a new form of radio receiver, in 1895 Rutherford was awarded an 1851 Research Fellowship from the Royal Commission for the Exhibition of 1851, to travel to England for postgraduate study at the Cavendish LaboratoryUniversity of Cambridge.
He was among the first of the 'aliens' (those without a Cambridge degree) allowed to do research at the university, under the inspiring leadership of J. J. Thomson, and the newcomers aroused jealousies from the more conservative members of the Cavendish fraternity.
He was knighted in 1914. During World War I, he worked on the practical problems of submarine detection.
 In 1916 he was awarded the Hector Memorial Medal. In 1919 he returned to the Cavendish succeeding J. J. Thomson as the Cavendish professor and Director. Under him, Nobel Prizes were awarded to James Chadwick for discovering the neutron (in 1932), John Cockcroft and Ernest Walton for an experiment which was to be known as splitting the atom using a particle accelerator, and Edward Appleton for demonstrating the existence of the ionosphere.
 Between 1925 and 1930 he served as President of the Royal Society, and later as president of the Academic Assistance Council which helped almost 1,000 university refugees from Germany.
 He was admitted to the Order of Merit in 1925 and raised to the peerage as Baron Rutherford of Nelson, in 1931, a title that became extinct upon his unexpected death in 1937.
Rutherford became Director of the Cavendish Laboratory at Cambridge University in 1919. Under his leadership the neutron was discovered byJames Chadwick in 1932 and in the same year the first experiment to split the nucleus in a fully controlled manner, performed by students working under his direction, John Cockcroft and Ernest Walton.
 After his death in 1937, he was honoured by being interred with the greatest scientists of the United Kingdom, near Sir Isaac Newton's tomb in Westminster Abbey. The chemical element rutherfordium (element 104) was named after him in 1997.

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