Saturday, March 19, 2005


In astronomy, zodiacal constellation lying between Aries and Gemini, at about 4 hours 20 minutes right ascension (the coordinate on the celestial sphere analogous to longitude on the Earth) and 16° north declination (angular distance north of the celestial equator). The constellation's brightest star, Aldebaran (Alpha Tauri), is of the first magnitude. The constellation

Wednesday, March 16, 2005


Most of the right(west)-bank area is occupied by the Volga Upland, which is greatly dissected by river valleys and erosion gullies; the left (east) bank is a low, rolling plain

Tuesday, March 15, 2005

Wang Fu-chih

Born and educated during the last years of the Ming dynasty (1368–1644), Wang was an ardent patriot who bitterly resisted the invasion of China by the Manchu tribes

Sunday, March 13, 2005


Functional unit of the kidney, the structure that actually produces urine in the process of removing waste and excess substances from the blood. There are about 1,000,000 nephrons in each human kidney. The most primitive nephrons are found in the kidneys (pronephros; q.v.) of primitive fish, amphibian larvae, and embryos of more advanced vertebrates.

Friday, March 11, 2005

Oscar I

Oscar's early liberal outlook and progressive ideas on such issues as fiscal policy, freedom of the press, and penal reform fortuitously coincided with a period of social, political, and industrial change. After his accession

Tuesday, March 08, 2005


The sultanate of Oman occupies the southeastern part of the Arabian Peninsula, facing the Persian Gulf, the Gulf of Oman, and the Arabian Sea. A small part of the country lies to the north and is separated from the rest of Oman by the United Arab Emirates. Area: 306,000 sq km (118,150 sq mi). Pop. (1994 est.): 2,048,000. Cap.: Muscat. Monetary unit: rial Omani, with (Oct. 7, 1994) a par value of 0.38 rial to U.S. $1 (free rate of 0.60 rial = £1 sterling).

Sunday, March 06, 2005

Regeneration, Annelids

The segmented worms exhibit variable degrees of regeneration. The leeches, as already noted, are wholly lacking in the ability to replace lost segments, whereas the earthworms and various marine annelids (polychaetes) can often regenerate forward and backward. The expression of such regenerative capacities depends very much on the level of amputation. Anteriorly