Search results
Results from the WOW.Com Content Network
Delay compositions are used to introduce a delay into the firing train, e.g. to properly sequence firing of fireworks, to delay firing of ejection charges in e.g. model rockets, or to introduce a few seconds of time between triggering a hand grenade and its explosion. Typical delay times range between several milliseconds and several seconds.
1.4 Consumer Display Rocket. A rocket is a pyrotechnic firework made out of a paper tube packed with gunpowder that is propelled into the air. Types of rockets include the skyrockets, which have a stick to provide stability during airborne flight; missiles, which instead rotate for stability or are shot out of a tube; and bottle rockets, smaller fireworks – 1½ in (3.8 cm) long, though the ...
Barium chromate – used in delay compositions, e.g. in fireworks rockets; Lead chromate – used in delay compositions; Potassium dichromate – used infrequently as an oxidizer; can be used as a surface treatment for passivation of magnesium particles, also as a catalyst and in some matches; potassium perchlorate often added; Oxides and ...
A spolette is a delay fuse consisting of a hollow wooden dowel or a paper tube rammed full of black powder. A spolette is glued into the wall of a fireworks shell and ignited by the lift charge that launches the shell into the air. The spolette, after a delay that allows the shell to reach its top of trajectory, ignites the shell's main effect(s).
A key ingredient in rocket fuel can be found in a wide array of foods we eat, especially baby food, fast food and fresh fruits and vegetables, according to an explosive new investigation from ...
The modern equivalent of a match (in the sense of a burnable cord) is the simple fuse such as a visco fuse, still used in pyrotechnics to obtain a controlled time delay before ignition. [4] The original meaning of the word still persists in some pyrotechnics terms, such as black match (a black-powder -impregnated fuse) and Bengal match (a ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Manganese / barium chromate / lead chromate: Time-delay mix, used for sequencing. Gasless burning. [5] RDX / nitrocellulose: Gas generator, unsuitable for deep space missions, burn rate dependent on pressure. [5] Boron / potassium nitrate: Gas generator and rocket-motor igniter, thermally stable, stable in vacuum, burn rate independent of ...