Definition of J J Thomson from the Oxford Advanced Learner's Dictionary

 

J J Thomson

 
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Joseph John Thomson (1856-1940) an English physicist who won the Nobel Prize for physics in 1906 for discovering the electron. He was also responsible for running the Cavendish Laboratory in Cambridge, England, which became the world's leading centre for research into atomic physics. His son George Thomson (1892-1975) and seven of his assistants all won Nobel Prizes. He was made a knight in 1908.