The atomic bombs dropped on Japan

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The USA dropped its first atomic bomb on the Japanese city of Hiroshima on August 6th 1945. Three days later a second atomic bomb was detonated over Nagasaki. The explosion was bigger than the blast at Hiroshima and killed 70,000 people. Louise Hidalgo introduces recordings from the BBC archive. (Photo: Mushroom cloud in the sky. Credit: US Air Force/Press Association)