Saturday, November 19, 2005


English  Lower Bavaria  Regierungsbezirk (administrative district), east-central Bavaria Land (state), southeastern Germany. Niederbayern is bordered by the Czech Republic to the northeast, Austria to the southeast, and the Regierungsbezirke of Oberbayern (Upper Bavaria) to the southwest and west and Oberpfalz (Upper Palatinate) to the north. Together with Oberbayern and Oberpfalz, the

Sunday, October 16, 2005

Allouez, Claude-jean

Allouez entered the Society of Jesus at Toulouse, was ordained priest in 1655, and sailed for Quebec in 1658. He was stationed at settlements along the St. Lawrence River until his appointment (1663) as vicar general of the Northwest. He

Thursday, July 28, 2005

Ligo Feast

In Baltic religion, the major celebration honouring the sun goddess, Saule (q.v.).

Tuesday, July 26, 2005

Arrhenius Equation

Mathematical expression that describes the effect of temperature on the velocity of a chemical reaction, the basis of all predictive expressions used for calculating reaction-rate constants. In the Arrhenius equation, k is the reaction-rate constant, A and E are numerical constants characteristic of the reacting substances, R is the thermodynamic gas constant, and

Saturday, July 23, 2005

Gypsy Moth

The European strain was introduced into eastern North America about 1869, and by 1889 it had become a serious pest of forest and fruit trees. (Damage is less severe in Europe, where the moth has several natural enemies.) The

Friday, July 08, 2005

Karaji, Al-

Also known as  al-Karkhi,  in full,  Abu Bakr ibn Muhammad ibn al-Husayn al-Karaji  mathematician and engineer who held an official position in Baghdad (c. 1010–1015), perhaps culminating in the position of vizier, during which time he wrote his three main works, al-Fakhri fi'l-jabr wa'l-muqabala (“Glorious on algebra”), al-Badi‘ fi'l-hisab (“Wonderful on calculation”), and al-Kafi fi'l-hisab (“Sufficient on calculation”). A

Wednesday, July 06, 2005

Arabia, History Of, Sabaean and Minaean Kingdoms

The Greek writer Eratosthenes (3rd century BC) described “Eudaimon Arabia” (i.e., Yemen) as inhabited by four major peoples (ethne), and it is on the basis of his nomenclature for these groups that modern scholars are accustomed to speak of Minaeans, Sabaeans, Qatabanians, and Hadramites. The fourfold categorization does indeed correspond to the linguistic data, but the political