velocity of progress
91volcano — /vol kay noh/, n., pl. volcanoes, volcanos. 1. a vent in the earth s crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. 2. a mountain or hill, usually having a cuplike crater at the summit,… …
92Gas chromatography — A gas chromatograph with a headspace sampler Acronym GLC, GC Classification chromatography Analytes organic inorganic …
93pace — I (New American Roget s College Thesaurus) n. rate, speed, velocity; step, measuring step; stride; gait, amble, rack, single foot. v. walk, step, stride; walk to and fro; measure; lead, set the pace. See motion, precedence, travel. II (Roget s… …
94Photon — This article is about the elementary particle of light. For other uses, see Photon (disambiguation). Photon Photons emitted in a coherent beam from a laser Composition Elementary particle …
95Newton's laws of motion — For other uses, see Laws of motion. Classical mechanics …
96Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
97military technology — Introduction range of weapons, equipment, structures, and vehicles used specifically for the purpose of fighting. It includes the knowledge required to construct such technology, to employ it in combat, and to repair and replenish it.… …
98Dragon (spacecraft) — SpaceX Dragon spacecraft Artist s rendering of the cargo variant of the SpaceX Dragon spacecraft (bottom) berthing to the International Space Station (top). Description Role: Commercial: various roles that put humans and cargo into LEO …
99USA-193 — (NROL 21) Delta II launching USA 193, Vandenberg Air Force Base, 2006 Operator U.S. National Reconnaissance Office Mission type …
100Impact crater — The prominent impact crater Tycho on the Moon. In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body. In most common usage,… …
