'''Leo Szilard''' invented the [[atomic bomb]]. He is credited with having the idea of a nuclear chain reaction to release massive amounts of energy, and with convincing [[Enrico Fermi]], [[Einstein]], and others that it is possible. He received a US patent for it. In 1945, after the [[Manhattan Project]] had made a successful atomic bomb, Szilard started a [[petition]], signed by a number of his fellow atomic [[scientist]]s, requesting that the bomb not be used against [[Japan]].
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'''Leo Szilard''' invented the [[atomic bomb]]. Szilard was born in Budapest, Hungary, but claimed German citizenship. Szilard knew [[Boris Pregel]], president of the Canadian Radium and Uranium Corporation before [[World War II]] when both lived in Europe. Szilard came to the United States approximately 1940.
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Szilard is credited with having the idea of a nuclear chain reaction would release massive amounts of energy, and with convincing [[Enrico Fermi]], [[Einstein]], and others that it is possible. He received a US patent for it. In 1945, after the [[Manhattan Project]] had made a successful atomic bomb, Szilard started a [[petition]], signed by a number of his fellow atomic [[scientist]]s, requesting that the bomb not be used against [[Japan]].