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Oliver Lee——Works at the International Air Transport Association, Lives in Montreal, Canada.
When
1 pound (0.45 kg) of uranium-235 undergoes complete fission, the yield is 8 kilotons. The 16 kiloton yield of the Little Boy bomb was therefore produced by the fission of
2 pounds (0.91 kg) of uranium-235, out of the
141 pounds (64 kg) in the pit.
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