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Fritz Zwicky

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Fritz Zwicky (; German: [ˈtsvɪki]; February 14, 1898 – February 8, 1974) was a Swiss astronomer. He worked most of his life at the California Institute of Technology in the United States of America, where he made many important contributions in theoretical and observational astronomy. In 1933, Zwicky was the first to use the virial theorem to postulate the existence of unseen dark matter, describing it as "dunkle Materie".

Fritz Zwicky - Wikipedia Jump to content From Wikipedia, the free encyclopedia This article is about the astronomer. For the composer and clarinetist, see Fritz Zwicky (composer) . Swiss astronomer (1898–1974) [[Gold Medal of the Royal Astronomical Society]] (1972)"},"footnotes":{"wt":""}},"i":0}}]}'> Fritz Zwicky Zwicky in c. 1970 Born February 14, 1898 Varna , Bulgaria Died February 8, 1974 (1974-02-08) (aged 75) Pasadena , California, US Citizenship Swiss Alma mater Swiss Federal Polytechnic Known for Dark matter , supernovae , galaxies as gravitational lenses , neutron stars Awards Medal o

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