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Moore, John Bassett

(Encyclopedia)Moore, John Bassett, 1860–1947, American authority on international law, b. Smyrna, Del. He was admitted to the Delaware bar in 1883. He was (1885–86) a law clerk in the Dept. of State and was (18...

Arias, Arnulfo

(Encyclopedia)Arias, Arnulfo ärno͞olˈfō ärˈyäs [key], 1901–88, president of Panama (1940–41, 1949–51, Oct., 1968). A Harvard-trained physician, he led the coup that deposed President Florencio Harmodio...

Knuth, Donald Ervin

(Encyclopedia)Knuth, Donald Ervin no͞oth, kəno͞othˈ [key], 1938–, American mathematician and computer scientist, b. Milwaukee, Wis., grad. Case Institute of Technology (B.S. and M.S., 1960) and California Ins...

Matthew of Paris

(Encyclopedia)Matthew of Paris or Matthew Paris, d. 1259, English historian, a monk of St. Albans. He became the historiographer of the convent after the death (c.1236) of Roger of Wendover. The first part of his C...

tetraethyl lead

(Encyclopedia)tetraethyl lead tĕtˌrəĕthˈəl [key], (C2H5)4Pb, viscous, colorless, poisonous liquid. It is an organometallic compound prepared by reacting ethyl chloride with a sodium-lead alloy. When added to ...

Shaw, Lemuel

(Encyclopedia)Shaw, Lemuel, 1781–1861, American jurist, b. Barnstable, Mass. After a career in the Massachusetts state legislature, Shaw served as chief justice for the supreme judicial court of Massachusetts (18...

clarinet

(Encyclopedia)clarinet, musical wind instrument of cylindrical bore employing a single reed. The clarinet family comprises all single-reed instruments, including the saxophone. The predecessor of the modern clarine...

Dana, Richard Henry

(Encyclopedia)Dana, Richard Henry, 1787–1879, American poet and essayist, b. Cambridge, Mass.; son of Francis Dana. After studying law, he was admitted to the bar in 1811. Critic and poet, Dana was a founder and ...

digital-to-analog conversion

(Encyclopedia)digital-to-analog or D/A conversion, the process of changing discrete digital data into a continuously varying signal in relation to a standard or reference. There are two types of converters: electro...

Updike, Daniel Berkeley

(Encyclopedia)Updike, Daniel Berkeley ŭpˈdīkˌ [key], 1860–1941, American printer and historian of typography, b. Providence, R.I. At the Merrymount Press, which he founded in 1893 in Boston, his stated purpos...