friction and wear apparatus
41India — /in dee euh/, n. 1. Hindi, Bharat. a republic in S Asia: a union comprising 25 states and 7 union territories; formerly a British colony; gained independence Aug. 15, 1947; became a republic within the Commonwealth of Nations Jan. 26, 1950.… …
42Germany — /jerr meuh nee/, n. a republic in central Europe: after World War II divided into four zones, British, French, U.S., and Soviet, and in 1949 into East Germany and West Germany; East and West Germany were reunited in 1990. 84,068,216; 137,852 sq.… …
43Vespel — Structure of a Vespel polymer Vespel is the trademark of a range of durable high performance polyimide based plastics manufactured by DuPont. The one shown in the structure on the right was the first to be commercialized.[1] …
44Meldin — 7000 is the trademark of a high performance polyimide polymer manufactured by Saint Gobain Performance Plastics ( [http://www.rulon meldin.com] ).History of the Meldin product lineMeldin is a family of polyimide materials and has been present for …
45Maglev — JR Maglev at Yamanashi, Japan test track in November 2005 …
46Grip (gymnastics) — Grips are devices that are worn on the hands of artistic gymnasts when performing on various gymnastics apparatus. They are worn by female gymnasts on the uneven bars, and by male gymnasts on the high bar, still rings and parallel bars. They are… …
47Steering — For other uses, see Steering (disambiguation). Part of car steering mechanism: tie rod, steering arm, king pin axis (using ball joints). Steering is the term applied to the collection of components, linkages, etc. which will allow a vessel (ship …
48Europe, 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.… …
49motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
50air-cushion machine — ▪ vehicle Introduction also called ground effect machine, or hovercraft, any of the machines characterized by movement in which a significant portion of the weight is supported by forces arising from air pressures developed around the… …
