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15 июн 1940 г. - Using the Berkeley cyclotron, Philip Abelson and Edwin McMillan demonstrate that neutrons captured by uranium 238 lead to the creation of elements 93 and 94, neptunium and plutonium.
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Atomic Bomb Timeline
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Alec
14 мар 2020
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15 июн 1940 г.
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~ 84 г назад
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