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71Light rail in North America — The term light rail was coined in 1972 by the U.S. Urban Mass Transit Association (UMTA) to describe new streetcar transformations which were taking place in Europe and the United States. The Germans used the term stadtbahn to describe the… …
72Recovery boiler — is the part of Kraft process of pulping where chemicals for white liquor are recovered and reformed from black liquor. In the process lignin of the wood, bound in black liquor at this phase, is burned and heat generated. The heat is usually used… …
73skiing — /skee ing/, n. the act or sport of gliding on skis. [1890 95; SKI + ING1] * * * I Sport and mode of transportation involving moving over snow on a pair of long flat runners (skis) attached to shoes or boots. Skiing was born in northern Europe;… …
74Earth exploration — Introduction the investigation of the surface of the Earth and of its interior. By the beginning of the 20th century most of the Earth s surface had been explored, at least superficially, except for the Arctic and Antarctic regions. Today the… …
75Master link — Figure 1: A traditional master link, compatible with straight chainlines and widely spaced sprockets …
76Venice — For other uses, see Venice (disambiguation). Venice Venezia   Comune   Comune di Venezia …
77Triticale — Taxobox name = Triticale image width = 240px image caption = Triticale regnum = Plantae divisio = Magnoliophyta classis = Liliopsida ordo = Poales familia = Poaceae tribus = Triticeae genus = × Triticosecale species = binomial = × Triticosecale… …
78volcano — /vol kay noh/, n., pl. volcanoes, volcanos. 1. a vent in the earth s crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. 2. a mountain or hill, usually having a cuplike crater at the summit,… …
79Pterosaur — Pterosaurs Temporal range: Late Triassic–Late Cretaceous, 220–65 Ma …
80Magnetic field — This article is about a scientific description of the magnetic influence of an electric current or magnetic material. For the physics of magnetic materials, see magnetism. For information about objects that create magnetic fields, see magnet. For …
