C.T.R. Wilson, English physicist

C.T.R. Wilson, English physicist

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Credit: SCIENCE PHOTO LIBRARY

Caption: English physicist C.T.R. Wilson (1869-1959), who invented the cloud chamber, the first instrument to make visible the tracks of subatomic particles. He first developed the instrument at the Cavendish Laboratory, Cambridge, in 1894-96. He wanted to use it to study certain atmospheric phenomena, but discovered that it could make electrically-charged particles (ions) "visible". He was then distracted by a thunderstorm & spent several years developing a fundamental theory of atmospheric electricity. He returned to work on the cloud chamber in 1910 & soon produced the first pictures of the tracks of subatomic particles. He won the 1927 Nobel prize for physics for his invention.

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Keywords: charles t.r, charles t.r., cloud chamber, inventor of, physicist, portraits, surname w, wilson

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