Explosion
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"Explode" redirects here. For the Nelly Furtado song, see Explode (song).
"Explosions" redirects here. For the Texas post-rock band, see Explosions in the Sky.
For the logical principle, see Principle of explosion.
An explosion is a sudden increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases (e.g. Such as the rapid burning proccess of fuel in a engine to create the cylinder movement). An explosion creates a shock wave.
Types of explosivesNaturalExplosions do not commonly occur in nature. Below Earth, most natural explosions arise from volcanic processes of various sorts. Explosive volcanic eruptions occur when magma rising from below has much dissolved gas in it; the reduction of pressure as the magma rises causes the gas to bubble out of solution, resulting in a rapid increase in volume. Explosions also occur as a result of impact events. On other planets, volcanoes and impacts cause explosions with various frequency. ChemicalThe most common artificial explosives are chemical explosives, usually involving a rapid and violent oxidation reaction that produces large amounts of hot gas. Gunpowder was the first explosive to be discovered and put to use. Other notable early developments in chemical explosive technology were Frederick Augustus Abel's development of nitrocellulose in 1865 and Alfred Nobel's invention of dynamite in 1866. NuclearA new order of explosive, the nuclear bomb, was invented in 1945 by Allied scientists. In 1952, the US military developed the first fusion bomb. ElectricalA high current electrical fault can create an electrical explosion by forming a high energy electrical arc which rapidly vaporizes metal and insulation material. Also, excessive magnetic pressure within an ultra-strong electromagnet can cause a magnetic explosion. VapourBoiling liquid expanding vapour explosions are a type of explosion that can occur when a vessel containing a pressurized liquid is ruptured, causing a rapid increase in volume as the liquid evaporates. AstronomicalSolar flares are an example of explosion common on the Sun, and presumably on most other stars as well. The energy source for solar flare activity comes from the tangling of magnetic field lines resulting from the rotation of the Sun's conductive plasma. Among the largest known explosions in the universe are supernovae, which result from stars exploding, and gamma ray bursts, whose nature is still in some dispute. Notable explosions
Chemical explosions
Nuclear testingUse in warExploding volcanoesSee also
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