designated bearing
41lead processing — Introduction preparation of the ore for use in various products. Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… …
42pre-Columbian civilizations — Introduction the aboriginal American Indian (Mesoamerican Indian) cultures that evolved in Meso America (part of Mexico and Central America) and the Andean region (western South America) prior to Spanish exploration and conquest in the 16th …
43Augustus — For other uses of Octavius, see Octavius (disambiguation). For other uses of Octavian, see Octavian (disambiguation). For other uses of Augustus, see Augustus (disambiguation) …
44Runway — This article is about the aircraft take off and landing area. For other uses, see Runway (disambiguation). Landing strip redirects here. For the pubic hairstyle, see Bikini waxing. RWY redirects here. For the audio/video connectors, see RCA… …
45Ford Straight-6 engine — Straight 6 Manufacturer Ford Motor Company Production 1941 1996 (US) 1960 present (AUS) 1961 1991 (ARG) …
46Syntype — In biological nomenclature, a syntype is a term used to indicate a specimen with a special status. In zoological nomenclature, a syntype is defined as Each specimen of a type series (q.v.) from which neither a holotype nor a lectotype has been… …
47Harry Turtledove's Darkness — The Darkness Series is a series of six fantasy novels by Harry Turtledove.* Into the Darkness (1999) * Darkness Descending (2000) * Through the Darkness (2001) * Rulers of the Darkness (2002) * Jaws of the Darkness (2003) * Out of the Darkness… …
48United States dollar — USD redirects here. For other uses, see USD (disambiguation). United States dollar …
49Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …
50climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …
