Fire

Fire is the rapid oxidation of a fuel in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. Flames, the most visible portion of the fire, are produced in the combustion reaction when the fuel reaches its ignition point temperature. Flames from hydrocarbon fuels consist primarily of carbon dioxide, water vapor, oxygen, and nitrogen. If hot enough, the gases may become ionized to produce plasma. The color and intensity of the flame depend on the type of fuel and composition of the surrounding gases.

thumb|Smoke from a fire|alt=

thumb|The August Complex fire in 2020, the largest fire in [[California's history]]

thumb|Flames of charcoal

thumb|right|A burning torch, discarded on the road in the wake of the Lewes Bonfire Night celebrations

thumb|upright=1.3|An electric cremator in Austria Cremation is a method of final disposition of a corpse through burning.

thumb|280px|right|The remains of Kyoto Animation Studio 1 after being set ablaze by an arsonist

Pyromania is an impulse-control disorder in which individuals repeatedly fail to resist impulses to deliberately start fires. An individual with pyromania deliberately sets fires on more than one occasion, and before the act of lighting the fire, the person usually experiences tension and an emotional buildup.

execution method

thumb|upright=1.35|Firefighters douse a burning building in Massueville, Quebec|Massueville, Canada.

aspect of human history

thumb|Embers of coal thumb|A bonfire in rural [[Australia, with a large number of sparks being blown by the wind; sparks are akin to embers in a similar way that dust is to stone.]] thumb|Embers of firewood used in [[sauna stove]]

upright=1.1|right|thumb|A view of one of the Tillamook Burn fires in August 1933

lowest temperature at which a material spontaneously ignites in a normal atmosphere without an external source of ignition

analytic procedure used in chemistry to detect the presence of certain elements

incandescent particle

thumb|right|Nineteenth-century electrolytic cell for producing oxyhydrogen Oxyhydrogen is a mixture of hydrogen (H2) and oxygen (O2) gases. This gaseous mixture is used for torches to process refractory materials and was the first

model for understanding the necessary ingredients for most fires

burning within within well-defined lower and upper bounds

lowest temperature at which a fuel will burn continuously

A backdraft (North American English), backdraught (British English) or smoke explosion is the abrupt burning of superheated gases in a fire caused when oxygen rapidly enters a hot, oxygen-depleted environment; for example, when a window or door to an enclosed space is opened or broken. Backdrafts are typically seen as a blast of smoke and/or flame out of an opening of a building. Backdrafts present a serious threat to firefighters. There is some debate concerning whether backdrafts should be considered a type of flashover.

thumb|The medium Daniel Dunglas Home was an alleged practitioner of pyrokinesis.

form of domestic violence

thumb|An Ubud cremation ceremony in 2005

type of explosion

atmospheric soot; component of fine particulate matter

agricultural practice

thumb|William Blake, Christian Fears the Fire from the Mountain thumb|Training against fire phobia at the US Army Pyrophobia is a fear of fire, which can be considered irrational if beyond what is considered normal. This phobia is ancient and primordial, perhaps since humanity's discovery of fire. Usually pertaining to humans' comprehensible reaction to fire itself, the fear of fire by other animals cannot be considered pyrophobic, as they are thought not to understand its purpose beyond general danger.

Physics apparatus for demonstrating acoustic standing waves in a tube

Pyrophilia is a relatively uncommon paraphilia in which a subject derives gratification from fire and fire-starting activity. It is distinguished from pyromania by the gratification being of a sexual nature.

scientific discipline concerned with natural processes involving fire in an ecosystem and the ecological effects

Emission spectra characteristic of burning hydrocarbon fuels

thumb|250px|Smouldering combustion in glowing embers of barbecue coal briquettes Smouldering (British English) or smoldering (American English; see spelling differences) is the slow, flameless form of combustion, sustained by the heat evolved when oxygen directly attacks the surface of a condensed-phase fuel. Many solid materials can sustain a smouldering reaction, including coal, cellulose, wood, cotton, tobacco, cannabis, peat, plant litter, humus, synthetic foams, charring polymers including polyurethane foam and some types of dust. Common examples of smouldering phenomena are the initiatio

deliberate burning of money for effect

pit to contain a fire

flame caused by separate oxidizer and fuel

device for turning a spit

optical phenomenon resulting from burning sulfur

thumb|200px|Burning luchina thumb|A knife for splintering luchinas

sale of goods at extremely discounted prices

introduction of inert substance in a closed system

a wash house boiler, generally made of galvanised iron, though the best sorts are made of copper

flame having maximal temperature below about 400 °C

Concentration of oxygen below which combustion is not possible

flame where the fuel and oxidizer are mixed before combustion