Tsui, Daniel C.

In full� Daniel Chee Tsui� Chinese-born American physicist who, with Horst L. St�rmer and Robert B. Laughlin, received the 1998 Nobel Prize for Physics for the discovery that the electrons in a powerful magnetic field at very low temperatures can form a quantum fluid whose particles have fractional electric charges. This effect is known as the fractional quantum Hall

Anarchism, English anarchist thought

The first sketch of an anarchist commonwealth in this sense was developed in England in the years immediately following the English Civil Wars (1642 - 51) by Gerrard Winstanley, a dissenting Christian and founder of the Digger movement. In his pamphlet of 1649, Truth Lifting Up Its Head Above Scandals, Winstanley laid down what later became basic principles among anarchists:

Cartago

City, east-central Costa Rica. Lying at 4,720 feet (1,439 m) above sea level, the city is located on the fertile Central Plateau, at the foot of Iraz� Volcano. Cartago was founded in 1563 and was the capital of Costa Rica until 1823. There are, however, no authentic colonial buildings since the town was attacked repeatedly by pirates during the 17th century and has also been damaged severely by earthquakes.