Accurizing — is the process of improving the accuracy of a firearm or airgun.cite web |url=http://saami.org/Glossary/index.cfm |title=SAAMI glossary |accessdate=2007 08 30] For firearms, accuracy is defined as the ability to hit exactly what you re aiming at … Wikipedia
Blowback (firearms) — Blowback is a system of operation for self loading firearms that obtains energy from the motion of the cartridge case as it is pushed to the rear by expanding gases created by the ignition of the propellant charge.[1] Several types of blowback… … Wikipedia
FN Minimi — Infobox Weapon name=Minimi caption=An early M249 version of the Minimi origin=flag|Belgium type=Light machine gun is ranged=yes service= used by=See Users wars= designer=Ernest Vervier design date=1974 manufacturer=FN Herstal unit cost=… … Wikipedia
Forging — This article is about the metalworking process. For specific hot forging hearth, see forge. For the act of counterfeiting, see forgery. Hot metal ingot being loaded into a hammer forge Forging is a manufacturing process involving the shaping of… … Wikipedia
Quasiturbine — The Quasiturbine or Qurbine engine is a proposed pistonless rotary engine using a rhomboidal rotor whose sides are hinged at the vertices. The volume enclosed between the sides of the rotor and the rotor casing provide compression and expansion… … Wikipedia
Bridgman seal — A Bridgman seal, named after Percy Williams Bridgman, seals a high pressure volume by the use of an unsupported area to create a higher pressure between two pistons. A viscous material such as copper or soap stone is used in the generated higher… … Wikipedia
Flued boiler — Trevithick s engine of 1806 is built around an early example of a flued boiler (specifically, a return flue type) A shell or flued boiler is an early, and relatively simple, form of boiler used to make steam, usually for the purpose of driving a… … Wikipedia
g-force — This article is about a type of acceleration. For other uses, see G force (disambiguation). This top fuel dragster can accelerate from zero to 160 kilometres per hour (100 mph) in 0.86 seconds. This is a horizontal acceleration of 5.3 g … Wikipedia