USA HISTORY

Detailed explanation-1: -On 6 August 1945, at 08:15, the first bomb was dropped on the centre of Hiroshima. ‘Little Boy’ was a gun-type fission bomb, using a conventional explosive charge to fire one sub-critical mass of uranium into another. This kind of device had never been tested before, but the scientists were confident it would work.

Detailed explanation-2: -This gun-type uranium bomb, nicknamed Little Boy, weighed 9, 700 pounds. The bomb was dropped on Hiroshima, Japan, August 6, 1945, at 8:15 AM. A B-29 dropped the bomb from 31, 000 feet. The bomb exploded about 1, 500 feet above the city with a force of 15, 000 tons of TNT.

Detailed explanation-3: -Japan formally surrendered in writing on Sept. 2, 1945, officially ending World War II. On Aug. 6, 1945, the United States dropped an atomic bomb on the Japanese city of Hiroshima-becoming the only country to ever use nuclear weapons during wartime.

Detailed explanation-4: -It is possible that U.S. President Harry Truman ordered the atomic bomb to be dropped on Nagasaki not only to further force Japan to surrender but also to keep the Soviets out of Japan by displaying American military power.