World War II Begins
World War II began with the German invasion of Poland on September 1, 1939, prompting Albert Einstein and Leó Szilárd to complete the letter to U.S. President Franklin Delano Roosevelt they had been working on over the summer. This letter was signed by Einstein on August 2, and it was hand-delivered to Roosevelt by the economist Alexander Sachs on October 11, 1939. The letter advised Roosevelt of the existence of the German nuclear energy project and warned that it was likely the Germans were working on an atomic bomb using uranium, and that the U.S. should be concerned about locating sources of uranium and researching nuclear weapon technology. At this time the U.S. policy was neutral in the war.
Experiments with the fission of uranium were already going on at universities and research institutes in the United States. Alfred Lee Loomis was supporting Ernest Lawrence at Berkeley Radiation Laboratory and Enrico Fermi at Columbia. Vannevar Bush was also doing similar research at Washington, D.C.-based Carnegie Institution. After the April 29, 1940 spring meeting of the American Physical Society, the New York Times reported that conferees argued "the probability of some scientist blowing up a sizable portion of the earth with a tiny bit of uranium."
Read more about this topic: S-1 Uranium Committee
Famous quotes containing the words world war, world, war and/or begins:
“Fifty million Frenchmen can’t be wrong.”
—Anonymous. Popular saying.
Dating from World War I—when it was used by U.S. soldiers—or before, the saying was associated with nightclub hostess Texas Quinan in the 1920s. It was the title of a song recorded by Sophie Tucker in 1927, and of a Cole Porter musical in 1929.
“The truth is, I do indulge myself a little the more in pleasure, knowing that this is the proper age of my life to do it; and, out of my observation that most men that do thrive in the world do forget to take pleasure during the time that they are getting their estate, but reserve that till they have got one, and then it is too late for them to enjoy it.”
—Samuel Pepys (1633–1703)
“We are at war with the most dangerous enemy that has ever faced mankind in his long climb from the swamp to the stars, and it has been said if we lose that war, and in so doing lose this way of freedom of ours, history will record with the greatest astonishment that those who had the most to lose did the least to prevent its happening.”
—Ronald Reagan (b. 1911)
“Finally my innocence begins to weigh me down.”
—Jean Racine (1639–1699)