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Lord Kelvin (1824-1907), British physicist and mathematician. Born William Thomson, he was co-discover in 1852 of the Joule-Thomson effect. In 1848, he proposed the existence of absolute zero and the use of an absolute temperature scale, which was named the Kelvin scale. In 1866 he was knighted for his work on galvanometers and signal-carrying cables used on the newly-laid Atlantic cable. He was made Baron Kelvin in 1892. He was President of the Royal Society and also appointed to the Order of Merit. Artwork from the 18th volume (second period of 1896) of the French popular science weekly 'La Science Illustree'.
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