His job was to teach people about theoretical physics. He was a fast-talking lecturer, but then was promoted to become a full time professor. He became widely known for his teaching skills and his studies in Ernest Lawrence Radiation Laboratory. When World War II started, Oppenheimer started to be more active in political issues. The Manhattan Project, which was to figure out how to make the atom bomb was started with Oppenheimer who was recruited to lead with Albert Einstein. They were forced to work at Los Alamos, New Mexico. When they work there they weren’t allowed to talk about anywhere and if they had to they could only say a little bit about it. He just figured out that he made one of the world’s most terrifying weapons. A atom bomb is made with uranium-235. It is a highly unstable element. This was hard to find because it usually is mixed with uranium-238 and they need somewhat the pure isotope of uranium-235. This by itself was a trivial task but by the end they were able to get a basketball sized lump of almost pure