What is Nuclear explosion?
A '''nuclear explosion''' is [[energy]] being released from a very fast [[nuclear reaction]]. It can be caused by [[nuclear fission]], [[nuclear fusion]], or both. Atmospheric nuclear explosions are associated with ''mushroom clouds'', although mushroom clouds can occur as a result of large chemical explosions. It is also possible to have an air-burst nuclear explosion without these clouds. Nuclear explosions produce [[radiation]] and [[radioactive]] debris. [[File:Operation Upshot-Knothole - Badger 001.jpg|thumb|right|230px]] The first [[nuclear weapon]] was detonated on July 16, 1945, when the [[United States]] tested a [[Plutonium]] type implosion-device called [[Trinity (nuclear test)|Gadget]] in [[Trinity Site]], [[New Mexico]]. The second use of a nuclear weapon was in [[combat]] on August 6th when the United States dropped a [[uranium]] type device called [[Little Boy]] on the Japanese city of [[Hiroshima]]. The United States also bombed [[Nagasaki]] three days later with a similar bomb to Gadget, called [[Fat Man]], making it the last use of nuclear weapons in [[combat]]. These [[atomic bomb|bombings]] resulted in the immediate deaths of around 120,000 to 220,000 people while more died over time due the nuclear [[radiation]]. Power plant accidents such as those at [[Chernobyl disaster|Chernobyl]] and [[Fukushima nuclear disaster|Fukushima]] were caused by steam and hydrogen explosions, not nuclear explosions. The fuel in a nuclear power plant is not [[Enriched uranium|enriched]] enough to create a nuclear explosion. {{commonscat|Nuclear explosion physics}} ==Other websites== *[http://www.google.com/search?client=flock&channel=fds&q=nuclear+explosion&ie=utf-8&oe=utf-8&aq=t Videos and other media on nuclear explosion] *[http://www.google.com/images?client=flock&channel=fds&q=nuclear+explosion&oe=utf-8&um=1&ie=UTF-8&source=univ&sa=X&ei=Otd_TYmDCoGosQOrl4WRBg&ved=0CGEQsAQ&biw=984&bih=527 Images of nuclear explosion] {{Nuclear power}} [[Category:Nuclear weapons]] [[Category:Nuclear energy]]