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Al-Battani

(Encyclopedia) Al-BattaniAl-Battaniäl-bät-täˈnē [key] or AlbateniusAlbateniusălˌbətēˈnēəs [key], b. before 858, d. 929, Arab astronomer and mathematician. He is best known in astronomy for his…

Hänsch, Theodor Wolfgang

(Encyclopedia) Hänsch, Theodor Wolfgang, 1941–, German physicist, Ph.D. Heidelberg, 1969. He was a professor at Stanford from 1975 to 1986 and then became head of the Max Planck Institute for Quantum…

Charlton, Bobby

(Encyclopedia) Charlton, Bobby (Sir Robert Charlton), 1937–, one of the most celebrated of all English soccer players. Famous for his graceful athleticism, powerfully accurate kick, and sportsmanlike…

Tyler, Moses Coit

(Encyclopedia) Tyler, Moses Coit, 1835–1900, American writer on intellectual history, b. Griswold, Conn. He moved to Michigan as a boy. Graduated from Yale (1857) and from Andover Theological…

Berzelius, Jöns Jakob, Baron

(Encyclopedia) Berzelius, Jöns Jakob, BaronBerzelius, Jöns Jakob, Baronbərzēˈlēəs; Swed. yöns yäˈkôp bĕrsāˈlĭəs [key], 1779–1848, Swedish chemist, M.D. Univ. of Uppsala, 1802. He was noted for his…

Beer's law

(Encyclopedia) Beer's law [for August Beer], physical law stating that the quantity of light absorbed by a substance dissolved in a nonabsorbing solvent is directly proportional to the concentration…

Baird, Spencer Fullerton

(Encyclopedia) Baird, Spencer Fullerton, 1823–87, American zoologist, b. Reading, Pa., grad. Dickinson College, 1840. He was professor of natural history at Dickinson from 1846 to 1850. While at the…

Smirke, Sir Robert

(Encyclopedia) Smirke, Sir Robert, 1781–1867, English architect, one of the most noted exponents of the classic revival. His best-known design is the main facade of the British Museum (1823–47).…

Hildreth, Richard

(Encyclopedia) Hildreth, RichardHildreth, Richardhĭlˈdrəth [key], 1807–65, American historian, b. Deerfield, Mass. From 1832 to 1838 he was the leading editorial writer for the Boston Daily Atlas. In…

Escalante, Silvestre Vélez de

(Encyclopedia) Escalante, Silvestre Vélez deEscalante, Silvestre Vélez desēlvāˈstrā vāˈlāth dā āskälänˈtā [key], fl. 1769–79, Spanish explorer in the American Southwest and Far West, a Franciscan…