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8 ore 8 min, 14 ottob 1939 anni - Alexander Sachs takes Einstein's letter to his old friend, President Roosevelt.
Aggiunto al nastro di tempo:
10 gen 2018
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315
Bomb
Timeline of the discovery of nuclear fission and race to dev...
Data:
8 ore 8 min, 14 ottob 1939 anni
Adesso
~ 84 years ago