Whose Birthday Is It? December 18, 2018

Sir Joseph John “J. J.” Thomson (1856)

One of the founders of modern physics, Thomson helped revolutionize the knowledge of atomic structure. He is known primarily for his discovery of the electron and his investigation of its charge and mass, his development of the mathematical theory of electricity and magnetism, and his role in the discovery of isotopes and invention of mass spectrometry. His research into the electrical conductivity of gases earned him a Nobel Prize in 1906. What did Thomson originally call electrons? More…


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