particles.In 1927, Oppenheimer returned to the United States and began to teach at the University of California Berkeley. While at UCB, Oppenheimer became more politically active. He became more political during the rise of Hitlerism in Germany and especially during the Spanish Civil War in 1936. During the Spanish Civil War, Oppenheimer sided with the republic and that is when he was acquainted with communist students. Only one year later, however, Oppenheimer withdrew from the communist party. In 1939, when Germany invaded Poland, Albert Einstein and Leo Szilard warned the U.S. government that if the Nazis made a nuclear bomb, it would threaten the world. Oppenheimer took this warning very seriously and began to seek the separation process of uranium-325 from natural uranium, and to make a nuclear bomb he needed to determine the critical mass of uranium required. To put it in the simplest of terms, World War II scared Oppenheimer.In the August of 1942, the Manhattan Project began. Its purpose was to harness nuclear energy for military purpose, or to make a nuclear bomb. Oppenheimer was named the administrator and instructed to establish a laboratory where tests could be done. Oppenheimer chose the plateau of Los Alamos, New Mexico. While he was at Los Alamos, he mostly acted as an arbiter for disputes among the scientists about the contents of the bomb, etc. Finally, after years of work, on July 16, 1945 at Alamogordo, New Mexico, after Germany had surrendered, the first nuclear explosion was occurred.On August 6, 1945 the first atomic bomb, Little Boy, was dropped on Hiroshima, Japan. It was dropped on Japan to end the war but it wasn’t successful. Another bomb needed to be dropped on Japan. On August 10th, the second atomic bomb, Fat Man, was dropped over Nagasaki, Japan. The second atomic bomb got America’s point across. On August 10, 1945 Japan surrendered. This proved that Oppenheimer’s help in...
