(of solar collectors)
111pre-Columbian civilizations — Introduction the aboriginal American Indian (Mesoamerican Indian) cultures that evolved in Meso America (part of Mexico and Central America) and the Andean region (western South America) prior to Spanish exploration and conquest in the 16th …
112Air well (condenser) — High mass air well of Belgian engineer Achile Knapen in Trans en Provence …
113Maharishi Group — Type Non profit conglomerate Industry Ayurvedic remedies, education, solar, software, organic farming, clothing, granite, construction, aviation, and others Founded 1960s Founder(s) Maharishi Mahesh Yogi Headquarters …
114Fan (mechanical) — A mechanical fan is an electrically powered device used to produce an airflow for the purpose of creature comfort (particularly in the heat), ventilation, exhaust, or any other gaseous transport.Mechanically, a fan can be any revolving vane or… …
115Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …
116Bussard ramjet — The Bussard ramjet is a theoretical method of spacecraft propulsion proposed in 1960 by the physicist Robert W. Bussard, popularized by Larry Niven in his Known Space series of books, and referenced by Carl Sagan in the television series and book …
117Meteorito metálico — Meteorito metálico. Los meteoritos metálicos, también conocidos como sideritos, holosideritos, meteoritos férricos o meteoritos ferro …
118environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
119Time — This article is about the measurement. For the magazine, see Time (magazine). For other uses, see Time (disambiguation). The flow of sand in an hourglass can be used to keep track of elapsed time. It also concretely represents the present as… …
120Stardust (spacecraft) — Infobox Spacecraft Name = Stardust Caption = Artist s conception of the Stardust spacecraft Organization = NASA Jet Propulsion Laboratory Major Contractors = Lockheed Martin Mission Type = Fly by, sample collection Satellite Of = Sun Orbital… …
