USA HISTORY

Detailed explanation-1: -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.

Detailed explanation-2: -The first two atomic bombs in 1945 About 64 kilograms of highly-enriched uranium was used in the bomb which had a 16 kiloton yield (i.e. it was equivalent to 16, 000 tonnes of TNT). It was released over Hiroshima, Japan’s seventh largest city, on 6 August 1945. Some 90% of the city was destroyed.

Detailed explanation-3: -The Tsar Bomba’s yield was 50 megatons: ten times more powerful than all of the ordnance exploded during the whole of World War II. The mushroom cloud was 25 miles wide at its base and almost 60 miles wide at its top. At 40 miles high, it penetrated the stratosphere.

Detailed explanation-4: -The bomb was 128.375 inches (3.2607 m) long and 60.25 inches (153.0 cm) in diameter. It weighed 10, 265 pounds (4, 656 kg).

Detailed explanation-5: -The plutonium-type bomb detonated over Nagasaki actually had a greater explosive power than that used on Hiroshima. The reason for the greater number of casualties in the latter city is to be sought in large part in differences in the physical features of the two cities.