Columbia Encyclopedia

(Encyclopedia) Carnot, Nicolas Léonard Sadi kärnōˈ [key], 1796–1832, French physicist, a founder of modern thermodynamics; son of Lazare N. M. Carnot. His famous work on the motive power of heat (Réflexions ...

(Encyclopedia) Fontaine, Pierre François Léonard pyĕr fräNswäˈ lāōnärˈ fôNtĕnˈ [key], 1762–1853, French architect. He was known chiefly for the work which, beginning in 1794, he did jointly with Charl...

(Encyclopedia) Dickson, Leonard Eugene, 1874–1954, American mathematician, b. Independence, Iowa, grad. Univ. of Texas, 1893. He studied in Leipzig and Paris and joined the staff of the Univ. of Chicago in 1900. A...

(Encyclopedia) Hobhouse, Leonard Trelawney, 1864–1929, English philosopher, sociologist, and journalist. He taught at Oxford and at the Univ. of London. Hobhouse sought to show with evidence from anthropology and ...

(Encyclopedia) Schawlow, Arthur Leonard shôˈlō [key], 1921–99, American physicist, b. Mount Vernon, N.Y., grad. Univ. of Toronto (Ph.D. 1949). Although his research focused on optics, in particular, lasers and ...

(Encyclopedia) Kleinrock, Leonard, 1934–, American computer scientist, b. New York City, B.E.E. City College of New York (1957), Ph.D. Massachusetts Institute of Technology (1963). Moving to the Univ. of Californi...

(Encyclopedia) Nelson, Leonard, 1882–1927, German philosopher. On the faculty of the Univ. of Göttingen from 1909, he was interested in the use of critical method to establish a scientific foundation for philosop...

(Encyclopedia) Volk, Leonard Wells, 1828–95, American sculptor, b. Wellstown (now Wells), N.Y. In 1848 he went to St. Louis, where he studied drawing and worked at funerary sculpture. With the aid of Stephen A. Do...

(Encyclopedia) Langer, William Leonard, 1896–1977, American historian, b. Boston. He received his Ph.D. from Harvard in 1923 and began teaching there in 1927. Langer served in U.S. intelligence in World War II and...

(Encyclopedia) Carey, George Leonard, 1935–, archbishop of Canterbury (1991–2002). From a working-class background, he graduated from the London School of Divinity in 1962 and was ordained the same year. Carey w...