Columbia Encyclopedia

(Encyclopedia) electromotive series, list of metals whose order indicates the relative tendency to be oxidized, or to give up electrons (see oxidation and reduction); the list also includes the gas hydrogen. The ele...

(Encyclopedia) Great Zimbabwe zĭmbäbˈwā [key] [Bantu,=stone houses], ruined city, SE Zimbabwe, near Masvingo (formerly Fort Victoria). Its mortarless, curving granite walls and buildings were constructed in 11th...

(Encyclopedia) Mound Builders, in North American archaeology, name given to those people who built mounds in a large area from the Great Lakes to the Gulf of Mexico and from the Mississippi River to the Appalachian ...

(Encyclopedia) Atacama Desert ätäkäˈmä [key], arid region, c.600 mi (970 km) long, N Chile, extending south from the border of Peru. The desert itself, c.2,000 ft (610 m) above sea level, is a series of dry sal...

(Encyclopedia) mineral, inorganic substance occurring in nature, having a characteristic and homogeneous chemical composition, definite physical properties, and, usually, a definite crystalline form. A few of the mi...

(Encyclopedia) Hogarth, William, 1697–1764, English painter, satirist, engraver, and art theorist, b. London. At the age of 15 he was apprenticed to a silver-plate engraver. He soon made engravings on copper for b...

(Encyclopedia) palladium [Gr. Pallas, goddess of wisdom], metallic chemical element; symbol Pd; at. no. 46; at. wt. 106.42; m.p. 1,554℃; b.p. 2,970℃; sp. gr. 12.02 at 20℃; valence +2, +3, or +4. Palladium is a...

(Encyclopedia) Mantegna, Andrea ändrĕˈä mäntĕˈnyä [key], 1431–1506, Italian painter of the Paduan school. He was adopted by Squarcione, whose apprentice he remained until 1456, when he procured his release...

(Encyclopedia) Shenyang mo͞okˈdŭn [key], city (1994 est. pop. 3,762,000), capital of Liaoning prov., NE China, on the Hun River. It is China's fourth largest city and the leading manufacturing hub in a highly ind...

(Encyclopedia) cable, originally wire cordage of great strength or heavy metal chain used for hauling, towing, supporting the roadway of a suspension bridge, or securing a large ship to its anchor or mooring. Today ...