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Log–log plot comparing the yield (in kilotonnes) and mass (in kilograms) of various nuclear weapons developed by the United States.. The explosive yield of a nuclear weapon is the amount of energy released such as blast, thermal, and nuclear radiation, when that particular nuclear weapon is detonated, usually expressed as a TNT equivalent (the standardized equivalent mass of trinitrotoluene ...
TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion.The ton of TNT is a unit of energy defined by convention to be 4.184 gigajoules (1 gigacalorie), [1] which is the approximate energy released in the detonation of a metric ton (1,000 kilograms) of TNT.
Little Boy was a type of atomic bomb created by the United States as part of the Manhattan Project during World War II.The name is also often used to describe the specific bomb (L-11) used in the bombing of the Japanese city of Hiroshima by the Boeing B-29 Superfortress Enola Gay on 6 August 1945, making it the first nuclear weapon used in warfare, and the second nuclear explosion in history ...
In most cases, the energy released from a nuclear weapon detonated within the lower atmosphere can be approximately divided into four basic categories: [1] the blast and shock wave: 50% of total energy [2] thermal radiation: 35% of total energy; ionizing radiation: 5% of total energy (more in a neutron bomb)
The public release of film footage of the city post-attack, and some research about the effects of the attack, was restricted during the occupation of Japan, [255] but the Hiroshima-based magazine, Chugoku Bunka, in its first issue published on 10 March 1946, devoted itself to detailing the damage from the bombing.
It’s been 75 years since the U.S. dropped an atomic bomb on the Japanese city of Hiroshima — marking the end of World War II and the dawn of the nuclear age — but survivors like Masaaki ...
The Little Boy gun-type atomic bomb dropped on Hiroshima on August 6, 1945, was made of highly enriched uranium with a large tamper. The nominal spherical critical mass for an untampered 235 U nuclear weapon is 56 kilograms (123 lb), [ 6 ] which would form a sphere 17.32 centimetres (6.82 in) in diameter.
The first test of a fission bomb released an amount of energy approximately equal to 20,000 tons of TNT (84 TJ). [1] The first thermonuclear ("hydrogen") bomb test released energy approximately equal to 10 million tons of TNT (42 PJ). Nuclear bombs have had yields between 10 tons TNT (the W54) and 50 megatons for the Tsar Bomba (see TNT ...