Columbia Encyclopedia
Search results
500 results found
ore
(Encyclopedia)ore, metal-bearing mineral mass that can be profitably mined. Nearly all rock deposits contain some metallic minerals, but in many cases the concentration of metal is too low to justify mining the ore...flerovium
(Encyclopedia)flerovium, artificially produced radioactive chemical element; symbol Fl; at. no. 114; mass number of most stable isotope 289; m.p., b.p., sp. gr., and valence unknown. Situated in Group 14 of the per...carbonate
(Encyclopedia)carbonate kärˈbənātˌ, –nət [key], chemical compound containing the carbonate radical or ion, CO3−2. Most familiar carbonates are salts that are formed by reacting an inorganic base (e.g., a ...Schiff, Adam Bennett
(Encyclopedia) Schiff, Adam Bennett, 1960- , American politician, b. Framingham, Ma., Stanford Univ. (B.A., 1982), Harvard Law School (J.D., 1985). ...saturated fat
(Encyclopedia)saturated fat, any solid fat that is an ester of glycerol and a saturated fatty acid. The molecules of a saturated fat have only single bonds between carbon atoms; if double bonds are present in the f...Kinnock, Neil Gordon
(Encyclopedia)Kinnock, Neil Gordon kĭnˈək [key], 1942–, British politician, b. Tredegar, Wales. The son of a miner, he studied at University College, Cardiff. In 1970 he was elected to Parliament as a Labour p...National Republican party
(Encyclopedia)National Republican party, in U.S. history, a short-lived political party opposed to Andrew Jackson. In the election of 1828, which Jackson won overwhelmingly, some of the supporters of his opponent, ...Novaya Zemlya
(Encyclopedia)Novaya Zemlya nôˌvīə zĭmlyäˈ [key] [Rus.,=New Land], archipelago, c.35,000 sq mi (90,650 sq km), in the Arctic Ocean between the Barents and Kara seas, NW Russia. It consists of two main island...organometallic chemistry
(Encyclopedia)organometallic chemistry, the reactions and use of a class of compounds (R-M) that contain a covalent bond between carbon and metal. They are prepared either by direct reaction of the metal with an or...Maputo Bay
(Encyclopedia)Maputo Bay, formerly Delagoa Bay dĕlˌəgōˈə [key], inlet of the Indian Ocean, c.55 mi (90 km) long and 20 mi (30 km) wide, S Mozambique, SE Africa; Maputo, the capital and chief port of Mozambiqu...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
-
Places
+-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-