high velocity jet
21Water jet cutter — A water jet cutter is a tool capable of slicing into metal or other materials using a jet of water at high velocity and pressure, or a mixture of water and an abrasive substance. The process is essentially the same as water erosion found in… …
22Abrasive jet machining — For the process that uses water as a carrier, see Water jet cutter. Abrasive jet machining (AJM), also known as abrasive micro blasting, pencil blasting and micro abrasive blasting,[1] is an abrasive blasting machining process that uses abrasives …
23Plasma-Jet — This engine allows an extremely hot ionized gas to escape at high velocity from the rear of the engine. An electromagnetic field may be used to accelerate the ionized gas. See Propulsion …
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24Proper velocity — η.In flat spacetime, proper velocity is the ratio between distance traveled relative to a reference map frame (used to define simultaneity) and proper time τ elapsed on the clocks of the traveling object. It equals the object s momentum p divided …
25Hot and high — In aviation, hot and high refers to very warm climates or very high elevations that may compromise an aircraft s ability to operate safely.Air density decreases with increasing temperature and altitude. Lower air density reduces the amount of… …
26Synthetic Jet — A synthetic jet flow, or synjet, is a type of jet flow. A jet flow is a fluid flow in which a stream of one fluid mixes with a surrounding medium. An example is a water jet that forms when you put your thumb over the end of a hose. The water… …
27Planned high-speed rail by country — This article provides of planned or proposed High speed rail projects, listed by country. High speed rail is public transport by rail at speeds in excess of 200 km/h (125 mph). [ [http://www.uic.asso.fr/gv/article.php3?id article=14 General… …
28Turbofan — [ CFM56 3 turbofan, lower half, side view.] A turbofan is a type of jet engine, similar to a turbojet. It essentially consists of a ducted fan with a smaller diameter turbojet engine mounted behind it that powers the fan. Part of the airstream… …
29Shaped charge — Sectioned high explosive anti tank round with the inner shaped charge visible …
30airplane — /air playn /, n. 1. a heavier than air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. 2. any similar heavier than air aircraft, as a glider or helicopter. Also …
