![]() His investigations also helped establish the photon theory of light. Based on the special theory of relativity, he proposed a theory of gravitation, and in 1916 he published his paper on the general theory of relativity. Einstein earned his Ph.D from the University of Zurich during his “miracle year,” 1905, where he published four groundbreaking papers and won notice from academics.Įinstein’s special theory of relativity sought to harmonize the laws of mechanics and laws of the electromagnetic field. He then worked at the Swiss Patent Office. He graduated in 1901, the same year he became a citizen of Switzerland. In 1896, Einstein began studying to be a physics and mathematics teacher at the Swiss Federal Polytechnic School in Zurich. He later regretted signing the letter to Roosevelt, saying in a Newsweek interview that “had I known that the Germans would not succeed in developing an atomic bomb, I would have done nothing.” After World War II, he worked to control nuclear proliferation. ![]() ![]() In collaboration with Leo Szilard, Einstein wrote a letter to President Roosevelt in 1939, warning of possible German nuclear weapons research and proposing that the United States begin its own research into atomic energy.Įinstein played no role in the Manhattan Project, having been denied a security clearance in July 1940 due to his pacifist tendencies. Albert Einstein (1879-1955) was a German-born theoretical physicist and winner of the 1921 Nobel Prize in Physics.Įinstein influenced the beginning of the Manhattan Project. ![]()
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