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Pyrotechnic gerbs used in the entertainment industry Pyrotechnics is the science and craft of creating such things as fireworks , safety matches , oxygen candles, explosive bolts and other fasteners , parts of automotive airbags , as well as gas-pressure blasting in mining, quarrying, and demolition.
There are several ways by which fireworks can be ignited. The most basic of these is simply flame from a match, lighter or other devices that emits flames. Another way to light fireworks is by using a device called a punk. A punk is a long, thin piece of wood covered in a substance that burns very slowly, producing only heat, with no flame.
The pyrotechnician FOC has three levels: pyrotechnician (which allows work under a supervisor), supervising pyrotechnician, and special effects pyrotechnician (which allows the fabrication of certain types of pyrotechnic devices). Additionally, a special effects pyrotechnician can be endorsed for the use of detonating cord.
The devices burn at a high temperature (as hot as 1000°C to 1600°C, or 1800°F to 3000°F), depending on the fuel and oxidizer used, more than sufficient to cause severe skin burns or ignite clothing. [12] Safety experts recommend that adults ensure children who handle sparklers be properly warned, supervised and wearing non-flammable ...
It is a thick-walled tube filled with pyrotechnic composition and possessing a choke, which is a narrowing in the tube. Gerbs are often referred to as 'fountains' ( spark fountain ). Sometimes a small charge of black powder is added to the bottom of a gerb to make it finish with a bang: this charge is known as the 'bounce'.
Illumination flares being used during military training exercises Flares being fired from a ship during a fleet review. A flare, also sometimes called a fusée, fusee, or bengala, [1] [2] bengalo [3] in several European countries, is a type of pyrotechnic that produces a bright light or intense heat without an explosion.
However, when being specific (and in particular in a military context), the term fuse [1] describes a simple pyrotechnic initiating device, like the cord on a firecracker whereas the term fuze [2] [unreliable source?] [3] [4] is used when referring to a more sophisticated ignition device incorporating mechanical and/or electronic components ...
Pyrotechnic initiators are often controlled electrically (called electro-pyrotechnic initiators), e.g. using a heated bridgewire or a bridge resistor. They are somewhat similar to blasting caps or other detonators, but they differ in that there is no intention to produce a shock wave. An example of such pyrotechnic initiator is an electric match.