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
History of the Islamic Republic of Pakistan provided an assessment on the Indian nuclear program, concluding that: "India was close to developing a nuclear weapon under its nuclear programme". Chairing a secret seminar in January 1972, which came to be known as "Multan meeting", Bhutto rallied Pakistani scientists to build an atomic bomb for national survival. The atomic bomb project brought together a team of prominent academic scientists and engineers, headed by theoretical physicist Abdus Salam. Salam later won the Nobel Prize in Physics for developing the theory for the unification of the weak nuclear and electromagnetic forces. The PPP created the 1973 Constitution with the support