Part one of term paper
On August 2, 1939 Albert Einstein wrote to President Franklin D. Roosevelt. This was right before the start of World War 2. In this letter Einstein and several other scientists told Roosevelt of the efforts Hitler was making to purify U-235 in which he hoped to make an atomic bomb. This is when the United States started the Manhattan Proje ...

Part two of term paper
... Lawrence, Isidor Rabi, and Ken Bainbridge also worked on the project and put just as much into it. The most complicated process was the process of getting enough uranium to sustain a chain reaction. In that time it was very hard to extract U-235. The ration of Uranium ore to the Uranium metal is 500:1. Then out of this Uranium metal 99% of it is U-238 which is non-fissionable. Finding a process to refining the Uranium was the first step in developing the atomic bomb. A massive enrichment lab ...