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conservation laws

(Encyclopedia)conservation laws, in physics, basic laws that together determine which processes can or cannot occur in nature; each law maintains that the total value of the quantity governed by that law, e.g., mas...

Giotto

(Encyclopedia)Giotto (Giotto di Bondone) jôtˈtō dē bōndôˈnā [key], c.1266–c.1337, Florentine painter and architect. He is noted not only for his own work, but for the lasting impact he had on the course o...

Custer, George Armstrong

(Encyclopedia)Custer, George Armstrong, 1839–76, American army officer, b. New Rumley, Ohio, grad. West Point, 1861. In the reorganization of the U.S. army after the war Custer was assigned to the 7th Cavalry w...

Hardy, Thomas

(Encyclopedia)Hardy, Thomas, 1840–1928, English novelist and poet, b. near Dorchester, one of the great English writers of the 19th cent. The son of a stonemason, he derived a love of music from his father and a ...

Gladstone, William Ewart

(Encyclopedia)Gladstone, William Ewart, 1809–98, British statesman, the dominant personality of the Liberal party from 1868 until 1894. A great orator and a master of finance, he was deeply religious and brought ...

Stuart, British royal family

(Encyclopedia)Stuart or Stewart, royal family that ruled Scotland and England. The Stuart lineage began in a family of hereditary stewards of Scotland, the earliest of whom was Walter (d. 1177), grandson of a Norma...

Keats, John

(Encyclopedia)Keats, John, 1795–1821, English poet, b. London. He is considered one of the greatest of English poets. The son of a livery stable keeper, Keats attended school at Enfield, where he became the frien...

intelligence

(Encyclopedia)intelligence, in psychology, the general mental ability involved in calculating, reasoning, perceiving relationships and analogies, learning quickly, storing and retrieving information, using language...

Angkor

(Encyclopedia)Angkor ăngˈkôr [key], site of several capitals of the Khmer Empire, north of Tônlé Sap, NW Cambodia, for about five and a half centuries (9th to 15th), the heart of the empire. Extending over an ...

Delacroix, Eugène

(Encyclopedia)Delacroix, Eugène (Ferdinand-Victor-Eugène Delacroix) fĕrdēnäNˈ-vēktôrˈ-özhĕnˈ dəläkrwäˈ [key], 1798–1863, French painter. Delacroix is considered the foremost painter of the romanti...