discovering the positron, or the positively charged electron. Carl D. Anderson was born on September 3, 1905, in New York City. In 1930, he graduated with a Ph.D. from the California Institute of Technology. Anderson studied X-ray photoelectrons, later studying gamma rays and cosmic rays. He and Victor Francis Hess received a Nobel Prize for Physics in 1936 for discovering positrons, positively charged particles the same size as electrons. Anderson died in San Marino, California, on January 11, 1991 MLA…
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