(Encyclopedia) cadmiumcadmiumkădˈmēəm [key] [from cadmia, Lat. for calamine, with which cadmium is found associated], metallic chemical element; symbol Cd; at. no. 48; at. wt. 112.411; m.p. 321℃; b.p…
(Encyclopedia) Lower Saxony, Ger. NiedersachsenLower Saxony,nēˈdərsäkˌsən [key], state (1994 pop. 7,480,000), 18,295 sq mi (47,384 sq km), NW Germany. Hanover is the capital. The state was formed in…
(Encyclopedia) Anhui or Anhwei Anhwei both: änˈhwāˈ [key], province, c.55,000 sq mi (142,450 sq km), E central China. Hefei is the capital. Anhui may be divided into two climatic…
(Encyclopedia) Guiana Highlands, mountainous tableland, c.1,200 mi (1,930 km) long and from 200 to 600 mi (322–966 km) wide, N South America, bounded by the Orinoco and Amazon river basins, and by…
(Encyclopedia) Balkan Peninsula, southeasternmost peninsula of Europe, c.200,000 sq mi (518,000 sq km), bounded by the Black Sea, Sea of Marmara, Aegean Sea, Mediterranean Sea, Ionian Sea, and…
(Encyclopedia) number theory, branch of mathematics concerned with the properties of the integers (the numbers 0, 1, −1, 2, −2, 3, −3, …). An important area in number theory is the analysis of prime…
(Encyclopedia) nitric acid, chemical compound, HNO3, colorless, highly corrosive, poisonous liquid that gives off choking red or yellow fumes in moist air. It is miscible with water in all…
(Encyclopedia) OranOranôräNˈ [key], city (1998 pop. 692,516), capital of Oran prov., NW Algeria, a port on the Gulf of Oran of the Mediterranean Sea. One of the country's leading ports, it ships…
