Frank, Ilya Mikhailovich

Frank, Ilya Mikhailovich,

1908–90, Soviet physicist, Ph.D. Moscow State Univ., 1935. He was a professor at Moscow State Univ. from 1944 until his death in 1990. Mikhailovich and Igor Y. TammTamm, Igor Yevgenyevich,
1895–1971, Soviet physicist, Ph.D. Moscow State Univ., 1933. He was a researcher at the P. N. Lebedev Physical Institute in Moscow from 1934 until his death in 1971. Tamm and Ilya M.
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 won the 1958 Nobel Prize in Physics with Pavel A. CherenkovCherenkov, Pavel Alekseyevich
, 1904–90, Soviet physicist. He shared with the Soviet physicists I. M. Frank and I. Y. Tamm the 1958 Nobel Prize in Physics for his discovery (1934) of Cherenkov radiation.
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 and Igor Tamm for their explanation of the radiation discovered by Cherenkov (see Cherenkov radiationCherenkov radiation
or Cerenkov radiation
[for P. A. Cherenkov], light emitted by a transparent medium when charged particles pass through it at a speed greater than the speed of light in the medium.
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). In 1937, Frank and Tamm discovered that the light waves emitted when gamma rays pass through a liquid medium are produced by electrically charged particles moving faster than the speed of light in the medium.
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