separation engine
121Scramjet — Part of a series on Aircraft propulsion Shaft engines (to drive pr …
122Fuel economy-maximizing behaviors — (also known as green driving) describe techniques that drivers can use to optimize their automobile fuel economy. The energy in fuel consumed in driving is lost in many ways, including engine inefficiency, aerodynamic drag, rolling friction, and… …
123airplane — /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 …
124technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
125Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ …
126Nuclear thermal rocket — Sketch of nuclear thermal rocket …
127Reaction Engines SABRE — infobox rocket engine imsize=220 caption=A model of the SABRE name=Reaction Engines SABRE country of origin=UK status=R D type=liquid fuel=Liquid hydrogen oxidiser=LOX cycle=combined cycle precooled jet engine + closed cycle rocket engine… …
128Mercury-Redstone 1A — Mission insignia Mission statistics Mission name Mercury Redstone 1A Spacecraft mass 2,720 lb (1,230 kg)[1] …
