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51Marine steam engine — Period cut away diagram of a triple expansion steam engine installation, circa 1918 A marine steam engine is a reciprocating steam engine that is used to power a ship or boat. Steam turbines and diesel engines largely replaced reciprocating steam …
52Laser cutting — process on a sheet of steel. CAD (top) and stainless steel laser cut part (bottom) Laser cutting is a technology that uses a laser to cut materials, an …
53Diplodocus — Not to be confused with Diplocaulus. Chordata Diplodocus Temporal range: Late Jurassic, 154–150 Ma …
54Welding — is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld puddle ) that cools to… …
55Space debris — populations seen from outside geosynchronous orbit (GEO). Note the two primary debris fields, the ring of objects in GEO, and the cloud of objects in low earth orbit (LEO) …
56Zinc oxide — Other names Zinc white Calamine Identifiers …
57Tribes Aerial Assault — Infobox VG title = Tribes: Aerial Assault caption = developer = Inevitable Entertainment publisher = Sierra Entertainment designer = engine = released = 2002 genre = First person shooter modes = Single player, multiplayer ratings = ESRB: Teen (T) …
58Di Gi Charat — Cover of the Di Gi Charat DVD featuring Dejiko (left), Puchiko (bottom right) and Rabi en Rose (top right) デ・ジ･キャラット (De Ji Kyaratto) Genre …
59Automated airport weather station — Automated airport weather stations are automated sensor suites which are designed to serve aviation and meteorological observing needs for safe and efficient aviation operations and weather forecasting. Automated airport weather stations have… …
60education — /ej oo kay sheuhn/, n. 1. the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life. 2. the act or process of… …
