Tuesday, April 05, 2005

Conservative Force

In physics, any force, such as the gravitational force between the Earth and another mass, whose work is determined only by the final displacement of the object acted upon. The total work done by a conservative force is independent of the path resulting in a given displacement and is equal to zero when the path is a closed loop. Stored energy, or potential energy, can be

Monday, April 04, 2005

India Rubber Plant

Young plants available in the florist's trade are durable

Wairau River


Sunday, April 03, 2005

Koch, Robert

In full  Robert Heinrich Hermann Koch  German physician and one of the founders of bacteriology. He discovered the anthrax disease cycle (1876) and the bacteria responsible for tuberculosis (1882) and cholera (1883). For his discoveries in regard to tuberculosis, he received the Nobel Prize for Physiology or Medicine in 1905.


Town and oasis north-central Algeria, at the southern edge of the Saharan Atlas, on the route linking Algiers with central Africa. The oasis (625 acres [253 hectares]) was probably settled in the 11th century after the Banu Hilal invaders, supported by the Fatimids of Egypt, crossed the area. Laghouat subsequently passed through Moroccan and Turkish hands and was divided by two warring

Saturday, April 02, 2005


Three types of mitres are worn in the Roman Catholic Church. The

Friday, April 01, 2005

World War Ii, The Atlantic, the Mediterranean, and the North Sea, 1942–45

The year 1942 was, on the whole, a favourable one for the German U-boats. First, the U.S. entry into the war entitled them to infest the U.S. coast of the North Atlantic; and it was not until the middle of the year that the Allies' introduction of the convoy system from the Caribbean northward constrained the raiders to go so far afield as the waters between Brazil and West Africa. Second,

Skaldic Poetry

Skalds were identified by name; their poems

Thursday, March 31, 2005

Nagaland, Cultural life

Tribal organization varies from the autocratic angs (chiefs) of the Konyaks and hereditary chieftainships of the Semas and Changs to the democratic structures of the Angamis, Aos, Lothas, and Rengmas. A prominent village institution is the morung (a communal house or dormitory for young unmarried men), where skulls and other trophies of war formerly were hung. The pillars

Wednesday, March 30, 2005

Giorgi, Giovanni

Giorgi studied civil engineering at the Institute of Technology in Rome and from 1906 to 1923 directed the Technology Office of Rome. He taught (1913–39) at the University of Rome and also held appointments


Traditional region, east-central Sudan. It is bordered on the east by Ethiopia. The Atbara River, an important tributary of the Nile, flows northwestward through Kassala and causes seasonal floods during torrential summer rains. Rocky deserts dominate the centre of the region, while in the north is the Butana Plain, with sandy clay soils and occasional low hills with