The Atomic Bombing of Hiroshima Trivia Questions

The bomb was an airburst at about 1,900 feet, so it created no crater. The blast wave flattened buildings, but ground zero had no large hole.

Japan surrendered on August 15, 1945, after the Nagasaki bombing and Soviet declaration of war. The Hiroshima bombing alone did not cause immediate surrender.

Hiroshima was hit by Little Boy, a uranium gun-type bomb. The plutonium implosion bomb, Fat Man, was dropped on Nagasaki three days later.

No leaflets were dropped on Hiroshima before the bombing. Leaflets warning of destruction were dropped on some Japanese cities, but only after Hiroshima.

The bombing on August 6, 1945, was the first combat use of a nuclear weapon. The Trinity test in July 1945 was the first detonation overall.

The mushroom cloud from the explosion rose to an estimated 40,000 to 50,000 feet, as reported by the crew of the Enola Gay.

Little Boy contained about 64 kg of uranium enriched to ~80% U-235, with less than 1 kg actually undergoing fission, yielding 15 kilotons.

The bombardier of the Enola Gay aimed at the T-shaped Aioi Bridge to ensure maximum destruction. The bomb detonated approximately 600 meters above the city.