The United States dropped two types of nuclear weapons in a sneak attack near the end of World War II.
The “Little Boy” bomb exploded on August 6, 1945 in Hiroshima. It was an enriched uranium gun-type fission weapon, while the “Fat Man” plutonium implosion-type nuclear weapon was dropped on Nagasaki just 3 days later.
Each bomb exploded several hundred meters (thousands of feet) above the ground, creating a larger destruction area around the point of detonation since the blast was able to rebound off the Earth. The blasts destroyed buildings, incinerated clothing and burned skin of everyone within a mile of the epicenter of each atomic explosion.
