articulated bearing
21Europe, 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.… …
22Bogie — This article is about wheeled wagons and trolleys. For Bogey, see Bogie (disambiguation). US style railroad truck with journal bearings in journal boxes …
23Mallet locomotive — A typical European Mallet type, a narrow gauge 0 4 4 2 tank locomotive for a mountain railway (in this case, the RhB G 2/2+2/3 in Switzerland) …
24Locomotive frame — A locomotive frame is the structure that forms the backbone of the railway locomotive, giving it strength and supporting the superstructure elements such as a cab, boiler or bodywork. The vast majority of locomotives have had a frame structure of …
25Pakistan — /pak euh stan , pah keuh stahn /, n. 1. Islamic Republic of, a republic in S Asia, between India and Afghanistan: formerly part of British India; known as West Pakistan from 1947 71 to distinguish it from East Pakistan (now Bangladesh).… …
26United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
27du Bousquet locomotive — of the Peking Hankow Railway. The du Bousquet locomotive was an unusual design of articulated steam locomotive invented by French locomotive designer Gaston du Bousquet.[1 …
28TGV — The TGV ( train à grande vitesse , French for high speed train ) is France s high speed rail service developed by GEC Alsthom (now Alstom) and SNCF, the French national rail operator, and operated primarily by SNCF. Following the inaugural TGV… …
29Psittacosaurus — Taxobox name = Psittacosaurus fossil range = Early Cretaceous image width = 200px image caption = Mounted cast of a Psittacosaurus mongoliensis skull at the Australian Museum, Sydney. regnum = Animalia phylum = Chordata classis = Sauropsida… …
30international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …
