Pyrotechnics

thumb|upright=1.1|Pyrotechnic Gerb (pyrotechnic)|gerbs used in the entertainment industry

thumb|Chinese firecracker roll being set off thumb|Large flower cracker set off at night thumb|Firecrackers set off in Sibu, [[Pitaki, to celebrate Chinese New Year]] A firecracker (cracker, noise maker, banger) is a small explosive device primarily designed to produce a large amount of noise, especially in the form of a loud bang, usually for celebration or entertainment; any visual effect is incidental to this goal. They have fuses, and are wrapped in a heavy paper casing to contain the explosive compound. Firecrackers, along with fireworks, originated in China.

chemical or mixture used as fuel for a rocket engine

A propellant (or propellent) is a mass that is expelled or expanded in such a way as to create a thrust or another motive force in accordance with Newton's third law of motion, and "propel" a vehicle, projectile, or fluid payload. In vehicles, the engine that expels the propellant is called a reaction engine. Although technically a propellant is the reaction mass used to create thrust, the term "propellant" is often used to describe a substance which contains both the reaction mass and the fuel that holds the energy used to accelerate the reaction mass. For example, the term "propellant" is of

thumb|upright=1.35|Illumination flares being used during military training exercises thumb|upright=1.35|Flares being fired from a ship during a fleet review

ammunition whose bullets emit light or smoke during flight

device used for signalling, distraction and concealment, usually in military settings.

aerial countermeasure against heat-seeking missiles

firework designed to produce smoke upon ignition

type of propelling nozzle

fireworks

thumb|256x256px|Painting of a 17th century pyrotechnician by Joseph Furttenbach (1665) Pyrotechnicians are people who are responsible for the safe storage, handling, and functioning of pyrotechnics and pyrotechnic devices. Although the term is generally used in reference to individuals who operate pyrotechnics in the entertainment industry, it can include all individuals who regularly handle explosives. However, individuals who handle more powerful materials for commercial, demolition, or military applications are generally referred to as explosive technicians.

A type of fastener

miniature explosive device

laws on use of firecrackers

type of anti-personnel and anti-tank mine

type of firecracker

French engineer