A lighter is a portable device which creates a controlled flame, and can be used to ignite a variety of flammable items, such as cigarettes, butane gas, fireworks, candles or campfires. A lighter typically consists of a metal or plastic container filled with a flammable liquid, a compressed flammable gas and in rarer cases a flammable solid i.e. rope in a trench lighter, a means of ignition to produce the flame, and some provision for extinguishing the flame or merely controlling it to such a degree that the user may extinguish it with their breath. Alternatively, a lighter can be one which uses electricity to create an electric arc utilizing the created plasma as the source of ignition or a heating element can be used in a similar vein to heat the target to its ignition temperatures, as first formally utilized by Friedrich Wilhelm Schindler to light cigars and now more commonly seen incorporated into the automobile auxiliary power outlet to ignite the target material. Different lighter fuels have different characteristics which is the main influence behind the creation and purchasing of a variety of lighter types.
The first lighters were converted flintlock pistols that used gunpowder. In 1662 the Turkish traveller Evliya Çelebi visited Vienna as a member of an Ottoman diplomatic mission and admired the lighters being manufactured there: “Enclosed in a kind of tiny box are tinder, a steel, sulphur and resinous wood. When struck just like a firearm wheel the wood bursts into flame. This is useful for soldiers on campaign.” One of the first lighters was invented by a German chemist named Johann Wolfgang Döbereiner in 1823 and was often called Döbereiner's lamp. This lighter worked by passing flammable hydrogen gas, produced within the lighter by a chemical reaction, over a platinum metal catalyst which in turn caused it to ignite and give off a great amount of heat and light.
The development of ferrocerium (often misidentified as flint) by Carl Auer von Welsbach in 1903 has made modern lighters possible.
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Ferrocerium (also known in Europe as Auermetall) is a synthetic pyrophoric alloy of mischmetal (cerium, lanthanum, neodymium, other trace lanthanides and some iron – about 95% lanthanides and 5% iron) hardened by blending in oxides of iron and/or magnesium. When struck with a harder material, the mixture produces hot sparks that can reach temperatures of when rapidly oxidized by the process of striking the rod. Striking both scrapes fragments off, exposing them to the oxygen in the air, and easily ignites them by friction heat due to cerium's remarkably low ignition temperature of between .
Fire making, fire lighting or fire craft is the process of artificially starting a fire. It requires completing the fire triangle, usually by heating tinder above its autoignition temperature. Fire is an essential tool for human survival and the use of fire was important in early human cultural history since the Lower Paleolithic. Today, it is a key component of Scouting and bushcraft.
A Bunsen burner, named after Robert Bunsen, is a kind of ambient air gas burner used as laboratory equipment; it produces a single open gas flame, and is used for heating, sterilization, and combustion. The gas can be natural gas (which is mainly methane) or a liquefied petroleum gas, such as propane, butane, or a mixture. Combustion temperature achieved depends in part on the adiabatic flame temperature of the chosen fuel mixture. In 1852, the University of Heidelberg hired Bunsen and promised him a new laboratory building.
Explores thermal insulation, heat balance, and energy efficiency in buildings, emphasizing strategies for reducing energy consumption and combating global warming.