friction and wear apparatus
71Algeria — /al jear ee euh/, n. a republic in NW Africa: formerly comprised 13 departments of France; gained independence 1962. 29,830,370; 919,352 sq. mi. (2,381,122 sq. km). Cap.: Algiers. * * * Algeria Introduction Algeria Background: After a century of… …
72atom — /at euhm/, n. 1. Physics. a. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical… …
73aerospace industry — Introduction assemblage of manufacturing concerns that deal with vehicular flight within and beyond the Earth s atmosphere. (The term aerospace is derived from the words aeronautics and spaceflight.) The aerospace industry is engaged in the …
74Drill string — A drill string on a drilling rig is a column, or string, of drill pipe that transmits drilling fluid (via the mud pumps) and torque (via the kelly drive or top drive) to the drill bit. The term is loosely applied as the assembled collection of… …
75Maglev (transport) — MAGLEV, or magnetic levitation, is a system of transportation that suspends, guides and (usually) propels vehicles, predominantly trains, using magnetic forces. This method has the potential to be faster, quieter and smoother than wheeled mass… …
76Monel — The Art Deco gate in the entrance hall of the Guardian Building is made from Monel metal.[1] Monel is a trademark of Special Metals Corporation for a series of nickel alloys, primarily composed of nickel …
77Derby Works — The North Midland and later Midland workshop in 2006 The Midland Railway Locomotive Works, known locally as the loco comprised a number of British manufacturing facilities in Derby building locomotives and, initially, rolling stock in Derby, UK …
78Dental anatomy — Adult and Baby teeth diagram. Note the non standard Dental notation (numbering) Dental anatomy is a field of anatomy dedicated to the study of human tooth structures. The development, appearance, and classification of teeth fall within its… …
79locomotive — locomotively, adv. locomotiveness, locomotivity, n. /loh keuh moh tiv/, n. 1. a self propelled, vehicular engine, powered by steam, a diesel, or electricity, for pulling or, sometimes, pushing a train or individual railroad cars. 2. an organized… …
80Distributed power — In rail transport distributed power refers to the placing of additional locomotives at intermediate points in the middle of the train, remotely controlled from the leading locomotive, to allow longer trains where operational considerations or… …
