Robert Oppenheimer and University of Chicago scientists who had helped develop the first nuclear weapons for the Manhattan ...
Langsdorf — who was married to a Manhattan Project physicist — sketched out a few ideas, including a clock ... proliferation.
Iconic Doomsday Clock moves one second closer to midnight as global existential threats rage. Clock factors include nuclear ...
The official Doomsday Clock has now been moved to 89 seconds to midnight, the closest it has ever been since its introduction ...
Langsdorf — who was married to a Manhattan ... Dr. Leonard Rieser, chairman of the board of the Bulletin of the Atomic Scientists, moves the hand of the Doomsday Clock back to 17 minutes before ...
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