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What ‘Oppenheimer’ doesn’t tell you about atomic bombs

On July 21, 2023, Christropher Nolan’s Oppenheimer entered wide release. The film follows J. Robert Oppenheimer, the scientist who directed the US program to create the world’s first atomic bombs. Because Nolan’s camera is kept narrowly focused on Cillian Murphy as Oppenheimer, much of the bomb’s impact and early history is kept largely off-screen. Here are three details of nuclear weapons and their development not captured in the film.