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A mushroom cloud is a distinctive mushroom-shaped flammagenitus cloud of debris, smoke, and usually condensed water vapour resulting from a large explosion. The effect is most commonly associated with a nuclear explosion , but any sufficiently energetic detonation or deflagration will produce a similar effect.
A transient condensation cloud, also called a Wilson cloud, is observable surrounding large explosions in humid air. When a nuclear weapon or high explosive is detonated in sufficiently humid air, the "negative phase" of the shock wave causes a rarefaction of the air surrounding the explosion but not of the air contained within it.
The cumulonimbus flammagenitus cloud (CbFg), also known as the pyrocumulonimbus cloud, is a type of cumulonimbus cloud that forms above a source of heat, such as a wildfire, nuclear explosion, or volcanic eruption, [5] and may sometimes even extinguish the fire that formed it. [6] It is the most extreme manifestation of a flammagenitus cloud.
The explosion of Tsar Bomba, according to the classification of nuclear explosions, was an ultra-high-power low-air nuclear explosion. [citation needed] The mushroom cloud of Tsar Bomba seen from a distance of 161 km (100 mi). The crown of the cloud is 65 km (40 mi) high at the time of the picture. (source: Rosatom State Corporation ...
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The violence of the explosion is likely unprecedented. As such, the accident is widely quoted as one of the first, if not the first, confirmed accidental occurrences of an unconfined vapor cloud deflagration that turns into a detonation - a so-called deflagration to detonation transition. The accident represents a "worst-possible" sort of case ...
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Aerial view of the Able mushroom cloud rising from the lagoon with Bikini Island visible in the background. The cloud carried the radioactive contaminants into the stratosphere. As with Little Boy (Hiroshima) and Fat Man (Nagasaki), the Crossroads Able shot was an air burst. These were purposely detonated high enough in the air to prevent ...