Nuclear fallout is residual radioisotope material that is created by the reactions producing a nuclear explosion. It is initially present in the radioactive cloud created by the explosion, and "falls
Comparison of fallout gamma dose and dose rate contours for a 1 Mt fission land surface burst, based on DELFIC calculations. Because of radioactive decay, the dose rate contours contract after fallout has arrived, but dose contours continue to grow.
Fallout shelter sign on a building in New York City
Following the detonation of the first atomic bomb, pre-war steel and post-war steel that is manufactured without atmospheric air, became a valuable commodity for scientists wishing to make extremely precise instruments that detect radioactive emissions, because these two types of steel are the only steels that do not contain trace amounts of fallout.
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
Nuclear fallout
…Nuclear fallout is residual radioisotope material that is created by the reactions producing a nuclear explosion. It is initially present in the radioactive cloud created by the explosion, and "falls out" of the cloud as it is moved by the atmosphere in the minutes, hours, and days after the explosion. The amount…
Ascending cloud from Redoubt Volcano from an eruption on 21 April 1990. The mushroom-shaped plume rose from avalanches of hot debris (pyroclastic flows) that cascaded down the north flank of the volcano.
Mushroom cloud from the atomic bombing of Nagasaki, Japan, on 9 August 1945
Vue du siège de Gibraltar et explosion des batteries flottantes View of the Siege of Gibraltar and the Explosion of the Floating Batteries, artist unknown, c. 1782
Mushroom cloud in an engraving from Gerhard Vieth's Physikalischer Kinderfreund, 1798