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The intent is to consume fuel ahead of the main fire, strengthening the control line. A backfire is a more aggressive type of burning done to influence the behavior of the main fire. In forest and prairie management, the driptorch is the most common tool used to ignite prescribed burns, which are used to remove excess fuel buildup or to re ...
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Diagram of a fire signal using the Polybius cipher. Ιn the 2nd century BC, the Greek engineers from Alexandria, Cleoxenes (Greek: Κλεόξενος) and Democletus (Greek: Δημόκλειτος) invented the pyrseia (Greek: πυρσεία). Πυρσεία from πυρσός which means torch. The letters of the Greek alphabet were listed on a ...
drip torch A hand-carried fire-starting device filled with flammable liquid that is poured across a flaming wick, dropping flaming liquid onto the fuels to be burned. duff A layer of decaying forest litter consisting of organics such as needles, leaves, and other plant materials covering the mineral soil. Duff can smolder for days after a fire.
Fire performance is usually performed with props that have specifically been made for the purpose. Fire torches, fire staffs, fire poi, fire hula hoops, fire whips, and other fire props are all readily available. Poi – A pair of roughly arm-length chains with handles attached to one end, and bundle of wicking material on the other.
A short piece of fire hose, usually 10 to 20 feet (6.1 m) long, of large diameter, greater than 2.5 inches (64 mm) and as large as 6 inches (150 mm), used to move water from a fire hydrant to the fire engine, when the fire apparatus is parked close to the hydrant. Solid stream A fire-fighting water stream emitted from a smooth-bore nozzle.
Ethanol burning with its spectrum depicted. In the study of combustion, the adiabatic flame temperature is the temperature reached by a flame under ideal conditions. It is an upper bound of the temperature that is reached in actual processes.
Although ignitable liquids are the most common fire accelerants, other chemicals such as propane or natural gas could also be used to accelerate a fire. Detecting the use of a fire accelerant at a crime scene can be the difference between classifying a fire as accidental or as an arson. Once a case is determined to be an arson, the detection of ...