Saturday, March 19, 2005

Ibn Shem Tov, Joseph Ben Shem Tov

Jewish philosopher and Castilian court physician who attempted to mediate the disdain shown for philosophy by contemporary Jewish scholars by undertaking a reconciliation of Aristotelian ethical philosophy with Jewish religious thought, best exemplified by his influential Kevod Elohim (written 1442; “The Glory of God”). Here he expounded his belief that answers

Wednesday, March 16, 2005

Nevada, Climate

The high Sierras along the state's western boundary often cause clouds of Pacific origin to drop their moisture before reaching Nevada, thus producing a semiarid climate. The driest regions are in the southeast and near Carson Sink, where annual rainfall seldom exceeds four inches (100 millimetres). The northeast has as little as eight inches of precipitation, whereas

Tuesday, March 15, 2005

Mckay, David O(man)

He served as a missionary in Scotland (1897–99) and then returned to Utah to become instructor and principal (1899–1908) of the Weber State Academy, now Weber State College. In 1906 he was elected a member of the Quorum of the Twelve Apostles, and in 1950 he

Saturday, March 12, 2005

Ribble Valley

Borough (district), administrative county of Lancashire, northwestern England, along the county's eastern border, extending into the western Pennine uplands. The southern part of the borough, including the lower Ribble valley and the two largest towns, Clitheroe and Longridge, lies in the historic county of Lancashire. The remainder of the mostly rural borough, including

Thursday, March 10, 2005

Uccello, Paolo

In 1436 in the Florence cathedral, Uccello completed a monochrome fresco of an equestrian monument to Sir John Hawkwood, an English mercenary who had commanded Florentine troops at the end of the 14th century. In the Hawkwood fresco, a single-point perspective scheme, a fully sculptural treatment of the horse and rider, and a sense of controlled potential energy within

Tuesday, March 08, 2005


City, Orenburg oblast (province), in the southern Ural Mountains of west-central Russia. The oblast is situated along the Samara River (a tributary of the Volga), near its confluence with the Buzuluk. Founded in 1736 as a Russian fortress, it was chartered in 1781. Industries include the manufacture of heavy metallurgical and agricultural machinery. The city has four technical

Monday, March 07, 2005

Earth, Seismic-wave velocity profiles

The techniques of deep seismic sounding, carried out mainly in the United States and western Europe, have yielded high-resolution velocity profiles for the crust and uppermost mantle since the late 1960s. These studies, complemented by detailed waveform analyses and seismic tomography, prove conclusively that the crust and upper mantle can vary significantly in