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Fire making, fire lighting or fire craft is the process of starting a fire artificially. Fire was an essential tool in early human cultural development.
The control of fire by early humans is said to date back to either Homo erectus or very early Homo sapiens: that is, 400-200 thousand years ago, based on archaeological evidence of hearths. Smouldering plants and trees, or any source of hot coals from natural fires, may have been the first resources exploited by humans to control fire. Friction is the most commonly used primitive method for making fire. Ancient techniques for starting friction fires include the hand drill, the bow drill, the fire plow and the pump drill. The flint and steel method, where hot sparks are struck from a piece of steel or iron onto suitable tinder and fanned into flames, was also used by primitive cultures. These methods have been known since the Paleolithic age, and are still in common use by some indigenous peoples.
Methods by historical era
Primitive methods and natural occurrence
Fire occurs naturally as a result of volcanic activity, meteorites, and lightning strikes. Many animals are aware of fire and adapt their behavior to it. Plants, too, have adapted to the natural occurrence of fire (see Fire ecology). Thus, humans encountered and were aware of fire, and later its beneficial uses, long before they could make fire on demand. The first and easiest way to make a fire would have been to use the hot ashes or burning wood from a forest or grass fire, and then to keep the fire or coals going for as long as possible by adding more wood and plant materials many times each day. Natural sources of animal fats and petrochemicals that burn could have been used to keep and maintain fires that started naturally.
The oldest way to make fire would have been to carry a burning coal from a natural fire, and to keep it smouldering in dry plant material (such as white sage or tobacco) that can hold a burning coal for long periods. Dry tinder can be added to the coal, and then blown on to produce flames. The problem with this method is that the coal can burn out, and the coal needs new plant material over long periods of time to keep smouldering. It may have been difficult to travel long distances in wet conditions with a burning coal wrapped in such plant materials. Many natives in North America still use certain smouldering plants to keep a fire alive for days. Birch bark, tobacco, sage, and other plants smoulder very well and provide both smoke for repelling insects and hot coals for fire making.
Fire can be created through friction by rapidly grinding pieces of wood against each other or a hard surface.
The hand drill is suggested to be the oldest method of fire by friction, characterized by the use of a thin, straightened wooden shaft or reed to be spun with the hands, grinding within a notch against the soft wooden base of a fire board (a wooden board with a carved notch in which to catch heated wood fibers created by friction). This repetitive spinning and downward pressure causes black dust to form in the notch of the fireboard, eventually creating a hot, glowing coal. The coal is then carefully placed onto suitable tinder and fanned gently until flame is produced.
The bow drill uses the same principle as the hand drill (friction by rotation of wood on wood) but the spindle is shorter, wider (about the size of a human thumb) and driven by a bow, which allows longer strokes. With a well-built bow drill and enough practice, fire can be easily created even in wet conditions.
A "pump drill" is a variant of the bow drill that uses a coiled rope around a cross-section of wooden stakes to produce friction on a hard surface, combusting material underneath the mechanism.
Another simple fire making tool using friction is a fire plough. It consists of a stick cut to a dull point, and a long piece of wood with a groove cut down its length. The point of the first piece is rubbed quickly against the groove of the second piece in a "plowing" motion, to produce hot dust that then becomes a coal. A split is often made down the length of the grooved piece, so that oxygen can flow freely to the coal/ember. Once hot enough, the coal is introduced to the tinder, more oxygen is added by blowing and the result is ignition.
A fire-saw is a method by which a piece of wood is sawed through a notch in a second piece or pieces to generate friction. The tinder may be placed between two slats of wood with the third piece or "saw" drawn over them above the tinder so as to catch a coal, but there is more than one configuration.
Steel and iron produce hot sparks when struck against any glassy stone such as quartz, jasper, agate or flint. A flint alone does not produce incandescent embers; it is the flint's ability to violently release small particles of iron, exposing them to oxygen, that starts the burning.
To produce sparks, one may strike a hard stone (for example flint or quartz) onto another containing iron (such as pyrite or marcasite). Sparks struck by this method must make immediate contact with tinder, black charcloth, or steel wool, which will smoulder from the spark. The material used to hold the spark is held above the flint or quartz, tight against the stone. The striker is then brought against the stone in a quick, straight downward motion. The stone pulls steel flakes off the striker, which become hot, molten sparks. The use of flint in particular became the most common method of producing flames in pre-industrial societies (see also fire striker). Travelers up to the late 19th century would often use tinderboxes to start fires more easily than with a bow drill or hand drill.
One of the easiest methods of creating fire is to use a lens or condensing reflector (such as a burning glass) to focus the energy from the sun onto tinder. It is most effective on dark-colored tinder, which absorbs heat and light energy better than light-colored tinder.
A concave mirror, such as a polished soda can bottom, can be used as well to focus the sun's rays on tinder.
An unusual method of making fire is with a device called a fire piston. Commonly constructed from wood, horn, or plastic, it has a hollow tube with one sealed end and a piston that fits snugly into the tube. At the end of the piston is a depression where tinder is held during compression. The tinder is inserted into the depression, and the piston is quickly pushed into the tube. This compresses the air, raising the temperature in the tube, just as a diesel engine fires, until the tinder ignites and forms an ember. Tinder can come from a variety of sources such as "Tinder Fungus" and char-cloth. This was observed in the jungle[which?] by Laurens van der Post.
Modern fire making methods also require heat and tinder to ignite the fire and fuel to maintain it.
Lighters, such as those for cigarettes or grills, use a ferrocerium "flint" for the spark, and gas fuels such as butane, or a liquid naphtha/gasoline-impregnated wick as the tinder and fuel. These are simple to light, often using a wheel mechanism that when spun with the thumb creates friction on the internal rod of ferrocerium "flint" and throws a shower of white-hot sparks into the tinder. Other lighters, particularly long-reach lighters used to light grills, typically require only the push of a button to generate high-voltage piezoelectricity for sparking their butane fuel.
Electric firemaking involves the contact of an electrically resistant object with tinder. A current is run through the object until it is red hot, like the burners on an electric stove, and it is brought into contact with the tinder, lighting it. Also, a low electric voltage, such as a flashlight battery coming into contact with a thin wire mesh (such as steel wool) will produce enough heat to ignite charcloth or other tinder.
Some fire-starting systems use a large ferrocerium rod and a hard scraper to create hot sparks by manually scratching the ferro rod with a knife or sharp object to ignite man-made or natural tinder. Ferrorod fire starters are popular with bushcraft hobbyists and survivalists. Similar sparking devices have a built-in striking blade which provides an easy method for sparking with one hand. Another common type has the ferrorod attached to a magnesium bar that can be scraped with a knife to make a powdered tinder that will burn for a few seconds. An easy-igniting, moisture-resistant homemade tinder that is popular with bushcrafters and campers is made from cotton balls lightly impregnated with petroleum jelly.
Many combinations of chemicals will ignite, some violently, when mixed, but are not in general use.
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