21 May 1946
  • Canadian Manhattan Project Louis Slotin accidentally set of a prompt critical reaction when he allowed two beryllium hemispheres to touch with a plutonium core in the center. He realized his mistake immediately and lifted the upper hemisphere with his left hand, averting disaster, but not before he received 2,100 rems of radiation. He was rushed to the hospital. The plutonium core involved in this accident was the same one in the accident with physicist Harry Daghlian in 1945. ww2dbase [Louis Slotin | CPC]
  • Charles J. Badger was decommissioned from service. ww2dbase [Charles J. Badger | CPC]
  • LST-1 was decommissioned from service. ww2dbase [LST-1 | CPC]

21 May 1946 Interactive Map

Timeline Section Founder: Thomas Houlihan
Contributors: Alan Chanter, C. Peter Chen, Thomas Houlihan, Hugh Martyr, David Stubblebine
Special Thanks: Rory Curtis

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Famous WW2 Quote
"All that silly talk about the advance of science and such leaves me cold. Give me peace and a retarded science."

Thomas Dodd, late 1945

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