Alexander Langsdorf

Dr. Alexander Langsdorf (1912-1996) was an American physicist who worked under Enrico Fermi at the University of Chicago.

He helped design the nuclear reactor Chicago Pile-2, following the success of Chicago Pile-1. He signed the Szilard Petition, which attempted to avert the use of the atomic bomb against Japan. After the war, Langsdorf become an outspoken opponent of the proliferation of nuclear weapons and helped found the Bulletin of the Atomic Scientists. His wife, Martyl, designed the Bulletin's iconic "Doomsday Clock." He and Martyl had two daughters, Alexandra and Suzanne.

Alexander Langsdorf's Timeline

  • 1938 Became a research fellow at the University of California at Berkeley.
  • 1939 to 1942 Worked as a physics instructor at Washington University in St. Louis.
  • 1943 to 1945 Worked on the Manhattan Project in Chicago.

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