Thursday, March 24, 2005

Ancient Rome, Barbarian kingdoms

Several barbarian kingdoms were then set up: in Africa, Gaiseric's kingdom of the Vandals; in Spain and in Gaul as far as the Loire, the Visigothic kingdom; and farther to the north, the kingdoms of the Salian Franks and the Alemanni. The barbarians were everywhere a small minority. They established themselves on the great estates and divided the land to the benefit of

Tuesday, March 22, 2005

Leguminosae

Plant family comprising the order Fabales (q.v.).

Saturday, March 19, 2005

Paddy

Also called  Rice Paddy,   small, level, flooded field used to cultivate rice in southern and eastern Asia. Wet-rice cultivation is the most prevalent method of farming in the Far East, where it utilizes a small fraction of the total land yet feeds the majority of the rural population. Rice was domesticated as early as 3500 BC, and by about 2,000 years ago it was grown in almost all of the present-day cultivation

Thursday, March 17, 2005

Pyrargyrite

A sulfosalt mineral, a silver antimony sulfide (Ag3SbS3), that is an important source of silver, sometimes called ruby silver because of its deep red colour (see also proustite). The best crystallized specimens, of hexagonal symmetry, are from St. Andreasberg in the Harz Mountains and from Freiberg, both in Germany; and Colquechaca, Bol. It is mined at Guanajuato, Mex., and near

Sunday, March 13, 2005

Bae Systems

Major British manufacturer of aircraft, missiles, avionics, and other aerospace and defense products. It was formed in 1999 from the merger of British Aerospace PLC (BAe) with Marconi Electronic Systems, formerly part of General Electric Company PLC. BAe, in turn, dates to the merger in 1977 of British Aircraft Corporation, Hawker Siddeley Aviation, and two other firms. Headquarters

Saturday, March 12, 2005

Perga

In Perga the apostles Paul and Barnabas began their first mission in Anatolia (Acts of the Apostles 13:13). A difficult mountain route into Phrygia began at Perga, and Alexander the Great used it

Thursday, March 10, 2005

Amphibian, Adaptations

The amphibian eye has a lid, associated glands and ducts, and muscles that allow accommodation as well as depth perception and true colour vision. These adaptations are regarded as the first evolutionary improvements in vertebrate terrestrial vision. Green rods in the retina, which permit perception of a wide range of wavelengths, are found only in amphibians.