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tags: [public]
created: 2025-10-27T09:17:57.483Z
---# Hiroshima ~nuclear bomb

**URL:** [https://en.wikipedia.org/wiki/Atomic_bombings_of_Hiroshima_and_Nagasaki](https://en.wikipedia.org/wiki/Atomic_bombings_of_Hiroshima_and_Nagasaki)

Hiroshima ~nuclear bomb The atomic bomb was dropped on Hiroshima at 8:15 a.m. local time on August 6, 1945. It detonated about 600 meters (1,968 feet) above the city center, causing massive destruction within seconds. The bomb dropped on Hiroshima was a uranium-235 gun-type fission bomb nicknamed "Little Boy". It worked by firing one sub-critical mass of uranium-235 into another using a gun-like barrel, creating a supercritical mass and triggering a nuclear chain reaction. It was the first nuclear weapon ever used in warfare.


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**Keywords:** public
