velocities
41Air gun — Air rifle and Air pistol redirect here. For other uses, see Air gun (disambiguation) An air gun (air rifle or air pistol) is a rifle or pistol which fires projectiles by means of compressed air or other gas, (in contrast to a firearm which uses… …
42Hamiltonian mechanics — is a re formulation of classical mechanics that was introduced in 1833 by Irish mathematician William Rowan Hamilton. It arose from Lagrangian mechanics, a previous re formulation of classical mechanics introduced by Joseph Louis Lagrange in 1788 …
43Landau damping — In physics, Landau damping, named after its discoverer, the eminent Soviet physicist Lev Davidovich Landau, is the effect of damping (exponential decrease as a function of time) of longitudinal space charge waves in plasma or a similar… …
44Newton's cradle — The cradle in motion …
45.204 Ruger — Infobox Firearm Cartridge name= .204 Ruger caption= 204 Ruger 32 grain (2.1 g) Vmax, 223 Remington 55 grain (3.6 g) Vmax, 204 Ruger 40 grain (2.6 g) Vmax. origin= USA type= Rifle designer= Ruger/Hornady design date= 2004 manufacturer= production… …
46Venturi scrubber — A venturi scrubber is designed to effectively use the energy from the inlet gas stream to atomize the liquid being used to scrub the gas stream. This type of technology is a part of the group of air pollution controls collectively referred to as… …
47Combustion light gas gun — technology is one of the areas being explored in an attempt to achieve higher velocities from artillery to gain greater range. Conventional guns use solid propellants, usually nitrocellulose based compounds to develop the chamber pressures needed …
48Spud gun (cannon) — This article is about pipe based cannons and similar which use air pressure, or combustion of a gaseous fuel, or both, to launch large projectiles at low speed. They are in two types: * To fire whole potatoes. These launchers are built and fired… …
49cave — cavelike, adj. /kayv/, n., v., caved, caving. n. 1. a hollow in the earth, esp. one opening more or less horizontally into a hill, mountain, etc. 2. a storage cellar, esp. for wine. 3. Eng. Hist. a secession, or a group of seceders, from a… …
50turbine — /terr bin, buyn/, n. any of various machines having a rotor, usually with vanes or blades, driven by the pressure, momentum, or reactive thrust of a moving fluid, as steam, water, hot gases, or air, either occurring in the form of free jets or as …
