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Bras d'Or Lake

(Encyclopedia)Bras d'Or Lake brä dôr [key], arm of the Atlantic Ocean, c.360 sq mi (930 sq km), indenting deeply into Cape Breton Island, N.S., SE Canada, and occupying much of the interior. A narrow channel link...

sundial

(Encyclopedia)sundial, instrument that indicates the time of day by the shadow, cast on a surface marked to show hours or fractions of hours, of an object on which the sun's rays fall. Although any object whose sha...

viol

(Encyclopedia)viol, family of bowed stringed instruments, the most important ensemble instruments from the 15th to the 17th cent. The viol's early history is indefinite, but it is recognizable in depictions from as...

Lavoisier, Antoine Laurent

(Encyclopedia)Lavoisier, Antoine Laurent äNtwänˈ lōräNˈ lävwäzyāˈ [key], 1743–94, French chemist and physicist, a founder of modern chemistry. He studied under eminent men of his day, won early recognit...

Pärt, Arvo

(Encyclopedia)Pärt, Arvo pârt [key], 1935–, Estonian composer, b. Paide; grad. Tallinn Conservatory (1963). He worked for Estonian radio (1958–67), left his homeland (1980, then part of the USSR), and settled...

revolution

(Encyclopedia)revolution, in a political sense, fundamental and violent change in the values, political institutions, social structure, leadership, and policies of a society. The totality of change implicit in this...

Juilliard School, The

(Encyclopedia)Juilliard School, The jo͞olˈyärd [key], in New York City; school of music, drama, and dance; coeducational; est. 1905 as the Institute of Musical Art, chartered 1926 as the Juilliard School of Musi...

instrumental

(Encyclopedia)instrumental, in the grammar of certain languages (e.g., Russian), the case referring to means or instrument. The Latin ablative may in some instances be termed instrumental. ...

reed organ

(Encyclopedia)reed organ, an organ in which air is forced over free reeds by means of bellows, usually worked by pedals. It is played by the use of one or more keyboards. Variations in tone are produced by stops th...

Karlin, John Elias

(Encyclopedia)Karlin, John Elias, American industrial psychologist and human-factors engineering pioneer, b. Johannesburg, South Africa, grad. Univ. of Cape Town (B.A., M.A.), Univ. of Chicago (Ph.D., 1942). With a...