drilling mud characteristics
51Road — This article is about a route, thoroughfare or way that supports travel by a means of conveyance. For a place outside a harbor where a ship can lie at anchor, see Roadstead. For public roads, see Highway. For other routes, see thoroughfare. For… …
52Disc brake — Close up of a disc brake on a car On automobiles, disc brakes are often located with …
531994 Pacific typhoon season — Infobox hurricane season Basin=WPac Year=1994 Track=1994 Pacific typhoon season summary.jpg First storm formed=January 2, 1994 Last storm dissipated=December 25, 1994 Strongest storm name=Doug Strongest storm pressure=910 Strongest storm… …
54Iraq — /i rak , i rahk /, n. a republic in SW Asia, N of Saudi Arabia and W of Iran, centering in the Tigris Euphrates basin of Mesopotamia. 22,219,289; 172,000 sq. mi. (445,480 sq. km). Cap.: Baghdad. Also, Irak. * * * Iraq Introduction Iraq Background …
55Calendar of 2002 — ▪ 2003 January I will not wait on events while dangers gather. I will not stand by as peril draws closer and closer. The United States of America will not permit the world s most dangerous regimes to threaten us with the world s most destructive… …
56Petroleum reservoir — A petroleum reservoir, or oil and gas reservoir, is a subsurface pool of hydrocarbons contained in porous or fractured rock formations. The naturally occurring hydrocarbons, such as crude oil or natural gas, are trapped by overlying rock… …
57Trinidad and Tobago — Trinidadian and Tobagonian. an independent republic in the West Indies, comprising the islands of Trinidad and Tobago: member of the Commonwealth of Nations. 1,273,141; 1980 sq. mi. (5128 sq. km). Cap.: Port of Spain. * * * Trinidad and Tobago… …
58volcano — /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,… …
59Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …
60Mary Rose — For later ships with the same name, see HMS Mary Rose. For the play by J.M. Barrie, see Mary Rose (play). The remnants of the Mary Rose undergoing conservation in Portsmouth …
