Portrait of Charles Wilson

Portrait of Charles Wilson

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Credit: SCIENCE PHOTO LIBRARY

Caption: Portrait of Charles Wilson (1869-1959), Scottish physicist and Nobel laureate. Son of a Scottish sheep farmer, Wilson was educated at Manchester and Cambridge. In 1894 he set about trying to produce artificial clouds in the laboratory by the sudden expansion of moist air. He found that water droplets would form on the vessel walls and on other available nuclei. He proposed that in the absence of dust, charged ions would be suitable nuclei. By 1911 he had built his cloud chamber, where the path of a charged ion is traced by water droplets. This was soon applied to visualising the alpha and beta particles from radioisotopes, and led to his sharing the 1927 Nobel physics prize.

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Keywords: 1927, c.t.r., c.t.r.wilson, charles t.r., cloud chamber, inventor of, nobel laureate, nobel prize, physics, portraits, pysicists, recipient, surname w, wilson, winner

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