二战时,德国纳粹为了增加取胜的筹码,投入了巨大的科技力量研究核武器。核原料的巨大能量在当时已经被很多科学家发现,当然也包括爱因斯坦,他希望美国也能投入核武器的研究,否则一旦纳粹研究出了核武器,美国就会处于弱势。爱因斯坦决定去面见当时的美国总统罗斯福。见到罗斯福后,爱因斯坦说了许多核原料的知识,可罗斯福根本就听不进他那些科学理论,草草地应付了几句,就对爱因斯坦下了逐客令。 During World War II, the German Nazis devoted enormous scientific and technological forces to studying nuclear weapons in order to increase their chances of winning victories. The enormous energy of nuclear materials was discovered by many scientists at that time, of course, including Einstein. He hoped that the United States could also invest in nuclear weapons research or the United States would be in a weak position once the Nazis developed nuclear weapons. Einstein decided to meet with then-President Roosevelt. After seeing Roosevelt, Einstein said a lot of knowledge of nuclear raw materials, but Roosevelt did not listen to his scientific theories, a few to deal with the grass on the Einstein under the command.