William Thomson (1824-1907),British physicist,better known as Lord Kelvin. Co-discoverer in 1852 of the Joule-Thomson effect,he proposed the existence of absolute zero in 1848 and the use of an absolute temperature scale (the Kelvin scale). In 1866 he was knighted for his work on Atlantic telegraph cable signals and galvanometers. He was made Baron Kelvin in 1892. He was President of the Royal Society (1890-95) and also appointed to the Order of Merit (1902). He was President of the Institution of Electrical Engineers in 1874,1889 and 1907. Portrait from 'History of the Institution of Electrical Engineers 1871-1931' (Appleyard,1939) | |
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