Thin Man (nuclear bomb) Thin Man (nuclear bomb) "Thin Man" was the code name for a proposed plutonium gun-type nuclear bomb using plutonium-239 which the United States was developing during the Manhattan Project. They aborted its development when they discovered that the spontaneous fission rate of their nuclear reactor-bred plutonium was too high for use in a gun-type design, due to the high concentration of the isotope plutonium-240. In 1942, prior to the Army taking over wartime atomic research, Robert Oppenheimer held conferences in Chicago in June and Berkeley, California, in July at which various engineers and physicists discussed nuclear bomb design issues. A
Bomb (book) Bomb (book) Bomb: The Race to Build—and Steal—the World's Most Dangerous Weapon is a 2012 adolescent non-fiction book by author Steve Sheinkin. The book won the 2013 Newbery Honor and Sibert Medal from the American Library Association. This book follows the process of building the nuclear bomb by the discovery of nuclear fission by German scientist Otto Hahn in December 17, 1938. The book traces the origin and development of the first atomic bomb. It follows the development of the atomic bomb from the discovery of nuclear fission through the Nazi heavy water manufacture to the Manhattan Project and the