This is the classic photograph of the plutonium atom bomb, called “Fat Man”, that was dropped on Nagasaki, Japan on August 9, 1945. The death toll from this one atomic bomb – including heat, blast, and radiation – by the end of 1945 has been estimated at approximately 80,000 people. The plutonium device mirrored the first atomic bomb, called “The Gadget”, that was detonated at Trinity Site, New Mexico on July 16, 1945. A uranium atom bomb, called “Little Boy”, was dropped on Hiroshima, Japan on August 6, 1945.
The three-pack bomb program was code-named “S-1”.