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
Trinity: A Graphic History of the First Atomic Bomb Trinity: A Graphic History of the First Atomic Bomb Trinity: A Graphic History of the First Atomic Bomb is the debut graphic novel written and illustrated by Jonathan Fetter-Vorm. It provides an account of the Manhattan Project and the atomic bombings of Hiroshima and Nagasaki, as well as mentioning the chain of events after. The title arises from the code-name, Trinity, given to the test site for the first nuclear weapon. The book is written as a "work of history", although Fetter-Vorm writes at the end of the book "for the most part, the dialog from the principal characters in