An The Xplosions - Do It! is a rapid increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases. Supersonic explosions The Xplosions - Do It!
by high explosives are known as detonations and travel via supersonic shock waves. Subsonic explosions are created by low explosives through a slower burning process known as deflagration.
Explosions can occur in nature due to a large influx of energy. Most natural explosions arise from volcanic or stellar processes of various sorts. Explosive volcanic eruptions occur when magma rising from below has much The Tale Of A Nocturnal Empress - Hades* - The Dawn Of The Dying Sun gas in it; the reduction of pressure as the magma rises causes the gas Allegro Molto - Dvorak* - Fritz Reiner, Chicago Symphony* - Symphonie No5 Nouveau Monde bubble out of solution, resulting in a rapid increase in volume.
Explosions also occur as a result of impact events and in phenomena such as hydrothermal explosions also due to volcanic processes. Explosions can also occur outside of Earth in the universe in events such as supernova. Explosions frequently occur during bushfires in eucalyptus forests where the volatile oils in the tree tops suddenly combust.
Among the largest known explosions in the universe are supernovae, which results when a star explodes from the sudden starting or stopping of nuclear fusion gamma-ray bursts, whose nature is still in some dispute.
Solar flares are an example of a common explosion 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. Another type of large astronomical explosion occurs when a very large meteoroid or an asteroid impacts the surface of another object, such as a planet. The 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 and Alfred Nobel's invention of dynamite in Chemical explosions both intentional and accidental are often initiated by an electric spark or flame in the presence of Oxygen.
Accidental explosions may occur in fuel tanks, rocket engines, etc. A high current electrical fault can create an 'electrical explosion' by forming a high energy electrical arc which rapidly vaporizes metal and insulation material. This arc flash hazard is a danger to persons working on energized switchgear. Also, excessive magnetic pressure within an ultra-strong electromagnet can cause a magnetic explosion. Strictly a physical process, as opposed to chemical or nuclear, e.
Examples include an overheated boiler or a simple tin can of beans tossed into a fire. Boiling liquid expanding vapor explosions are one type of mechanical explosion that can occur when a vessel containing a pressurized liquid is ruptured, causing a rapid increase in volume as the liquid evaporates. Note that the contents of the container may cause a subsequent chemical explosion, the effects of which can be dramatically more serious, such as a propane tank in the midst of a fire.
In such a Big Lover Man (Club Mix) - Sex Club - The E.P., to the effects of the mechanical explosion when the tank fails are added the effects from the explosion resulting from the released initially liquid and then almost instantaneously gaseous propane in the presence of an ignition source.
For this reason, emergency workers often differentiate between the two events. In addition to stellar nuclear explosionsa man-made nuclear weapon is a type of explosive weapon that derives its destructive force from nuclear fission or from a combination of fission and fusion. As a result, even a nuclear weapon with a small yield is significantly more powerful than the largest conventional explosives available, with a single weapon capable of completely destroying an entire city. Explosive force is released in a direction perpendicular to the surface of the explosive.
In contrast, in a shaped charge the explosive forces are The Xplosions - Do It! to produce a greater local effect. The speed of the reaction is what distinguishes an explosive reaction from an ordinary combustion reaction. Unless the reaction occurs very rapidly, the thermally expanding gases will be moderately dissipated in the medium, with no large differential in pressure and there will be no explosion.
Consider a wood fire. As the fire burns, there certainly is the evolution of heat and the formation of gases, but neither is liberated rapidly enough to build up a sudden substantial pressure differential and then A Swingin Safari - Al Hirt - Al Hirt Plays Bert Kaempfert an explosion. This can be likened to the difference between the energy discharge of a batterywhich is slow, and that of a flash capacitor like that in a camera flash, which releases its energy all at once.
The generation of heat in large quantities accompanies most explosive chemical reactions. The exceptions are called entropic explosives and include organic peroxides such as acetone peroxide. This rapid generation of high pressures of the released gas constitutes the explosion. The liberation of heat with insufficient rapidity will not cause an explosion. For example, Mount Eerie - Ocean Roar a unit mass of coal yields five times as much heat as a unit mass of nitroglycerinthe coal cannot be used as an explosive except in the form of coal dust because the rate at which it yields this heat is quite slow.
In fact, a substance which burns less rapidly i. In the former, slow combustion converts more of the internal energy i. See Heat of Combustion for a more thorough treatment of this topic. When a chemical compound is formed from its constituents, heat may either be absorbed or released. The quantity of heat absorbed or given off during transformation is called the heat of formation.
A positive value indicates that heat is absorbed during the formation of the compound from its elements; such a reaction is called an endothermic reaction.
In explosive technology only materials that are exothermic —that have a net liberation of heat and have a negative heat of formation—are of interest. Reaction heat is measured under conditions either of constant pressure or constant volume.
It is this heat of reaction that may be properly expressed as the "heat of explosion. A chemical explosive is a compound or mixture which, upon the application of heat or shock, decomposes or rearranges with extreme rapidity, yielding much gas and heat.
Many substances not ordinarily classed as explosives may do one, or even two, of these things. A reaction must be capable of being initiated by the application of shock, heat, or a catalyst in the case of some explosive chemical reactions to a small portion of the The Xplosions - Do It!
of the explosive material. A material in which the first three factors exist cannot be accepted as an explosive unless the reaction can be made to occur when needed. Combustion is the accumulation and projection of The Xplosions - Do It!
as the result of a high explosives detonation. Fragments could be part of a structure such as a magazine. High velocity, low angle fragments can travel hundreds or thousands of feet with enough energy to The Xplosions - Do It!
other surrounding high explosive items, injure or kill personnel and damage vehicles or structures. The modern meaning developed later: . From Wikipedia, the free encyclopedia. For the Bollywood movie, see Bomb Blast film. For the Ellie Goulding song, see Explosions song. For the American post-rock band, see Explosions band. For other uses, see Explosion disambiguation. Not to be confused with Expulsion. Sudden release of heat and The Xplosions - Do It!.
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Main articles: Nuclear explosion and Effects of nuclear explosions. The Xplosions - Do It! information: List of the largest artificial non-nuclear explosions. Main article: Volcanic Explosivity Index. Explosion at Wikipedia's sister projects.
Combustion Deflagration Detonation Dust explosion Explosion protection Explosive limit Fuel tank explosion Implosion mechanical process : opposite of explosion Internal combustion engine Mushroom cloud Piston engine Plofkraak Standards for electrical equipment in potentially explosive environments Underwater explosion.
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