OXFORD SCIENCE ARCHIVE / HERITAGE IMAGES / SCIENCE PHOTO LIBRARY OXFORD SCIENCE ARCHIVE / HERITAGE IMAGES / SCIENCE PHOTO LIBRARY
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Sir Joseph John Thomson, British physicist and inventor, 1900. Thomson studied sciences at Trinity College, Cambridge. After graduating, he continued to work at Cambridge University and in 1896 began experiments on cathode rays, demonstrating that they were in fact particles with a negative charge and were much smaller than an atom. These particles were later renamed electrons. In 1906, he was awarded the Nobel Prize for Physics.
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