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ether, in physics and astronomy

(Encyclopedia)ether or aether, in physics and astronomy, a hypothetical medium for transmitting light and heat (radiation), filling all unoccupied space; it is also called luminiferous ether. In Newtonian physics a...

Ishim, river, Russia and Kazakhstan

(Encyclopedia)Ishim, river, c.1,130 mi (1,819 km) long, W Siberian Russia and Kazakhstan. It rises N of Qaraghandy in Kazakhstan (where it is known as the Esil), flows W past Atbasar, N past Petropavl, and then joi...

Cardamoms, mountains, Thailand and Cambodia

(Encyclopedia)Cardamoms kärˈdəməmz [key], Thai Banthat, Khmer Kravanh, mountain group extending c.100 mi (160 km) along the Thai-Cambodian border, E of Chanthaburi, SE Thailand. The mountains receive monsoon ra...

Oise, river, Belgium and France

(Encyclopedia)Oise, river, 186 mi (299 km) long, rising in the Ardennes Mts., S Belgium, and flowing through N France generally SW past Compiègne to join the Seine River near Pontoise. Navigable for most of its le...

Brentwood, city and district, England

(Encyclopedia)Brentwood, city and district, Essex, SE England. Brentwood is mainly residential but produces some agricultural equipment, film, and prefabricated concr...

Brougham, Henry Peter, 1st Baron Brougham and Vaux

(Encyclopedia)Brougham, Henry Peter, 1st Baron Brougham and Vaux bro͞om, vôz, vôks [key], 1778–1868, British statesman, b. Edinburgh. As a young lawyer in Scotland he helped to found (1802) the Edinburgh Revie...

Timotheus , Greek poet and musician

(Encyclopedia)Timotheus tĭmōˈthēəs [key], c.450–c.357 b.c., Greek poet and musician of Miletus. An innovator in music, he added a string to the kithara. Fragments of his dithyrambs and nomes remain. Euripide...

Christchurch, town and borough, England

(Encyclopedia)Christchurch, town and borough, Dorset, S central England, on Christchurch Bay at the confluence of the Avon and Stour rivers. The city's industries ran...

Wilson, Robert

(Encyclopedia)Wilson, Robert, 1941–, dramatist, director, and designer, b. Waco, Tex. He began his arts career as a painter. A leading figure in postmodern theater since 1963, when he arrived in New York City, he...

Autolycus, Greek astronomer and mathematician

(Encyclopedia)Autolycus ôtŏlˈĭkəs [key], fl. 4th cent. b.c., astronomer and mathematician of Pitane in Aeolis. Of his two extant works, that on the revolving sphere is said to be the oldest completely preserve...