Thin Man (nuclear bomb) and the name came from the Dashiell Hammett detective novel "The Thin Man" and series of movies by the same name. The "Fat Man" bomb would be round and fat and was named after Sydney Greenstreet's character in "The Maltese Falcon". "Little Boy" would come last and be named only to contrast to the "Thin Man" bomb. Oppenheimer assembled a team at the Los Alamos Laboratory to work on plutonium gun design that included senior engineer Edwin McMillan and senior physicists Charles Critchfield and Joseph Hirschfelder. Critchfield had been working with sabots, which Oppenheimer believed would be required by the
The Thin Man (film) is guilty. The detective uncovers clues and eventually solves the mystery of the disappearance. The murderer is revealed in a classic dinner party scene that features all of the suspects. A skeletonized body, found during the investigation, had been assumed to be that of a "fat man" because it was wearing oversized clothing. The clothes are revealed to be planted, and the identity of the body is determined by an old war wound in one leg. It turns out that the body belongs to a "thin man": the missing Wynant. The real killer is uncovered at the dinner party before