Columbia Encyclopedia

Search results

458 results found

Cameron, James

(Encyclopedia)Cameron, James, 1954–, Canadian motion-picture director and screenwriter, b. Kapuskasing, Ont. Beginning as a screenwriter and then art director, he first directed in 1981. His science-fiction block...

canon, in music

(Encyclopedia)canon, in music, a type of counterpoint employing the strictest form of imitation. All the voices of a canon have the same melody, beginning at different times. Successive entrances may be at the same...

center of mass

(Encyclopedia)center of mass, the point at which all the mass of a body may be considered to be concentrated in analyzing its motion. The center of mass of a sphere of uniform density coincides with the center of t...

Kitt Peak National Observatory

(Encyclopedia)Kitt Peak National Observatory, astronomical observatory located southwest of Tucson, Ariz.; it was founded in 1958 under contract with the National Science Foundation and is administered by the Assoc...

Renoir, Jean

(Encyclopedia)Renoir, Jean zhäN rənwärˈ [key], 1894–1979, French film director and writer, b. Paris; son of Pierre Auguste Renoir. He made his first film in 1926. Gathering around him a devoted coterie of act...

Anaxagoras

(Encyclopedia)Anaxagoras ănˌəksăgˈərəs [key], c.500–428 b.c., Greek philosopher of Clazomenae. He is credited with having transferred the seat of philosophy to Athens. He was closely associated with many f...

Euler, Leonhard

(Encyclopedia)Euler, Leonhard lāˈônhärt oiˈlər [key], 1707–83, Swiss mathematician. Born and educated at Basel, where he knew the Bernoullis, he went to St. Petersburg (1727) at the invitation of Catherine ...

Baum, L. Frank

(Encyclopedia)Baum, L. Frank (Lyman Frank Baum) bôm [key], 1856–1919, American journalist, playwright, and author of children's stories, b. Chittenango, N.Y. He and his family moved to South Dakota in 1888, wher...

Bjerknes, Vilhelm Frimann Koren

(Encyclopedia)Bjerknes, Vilhelm Frimann Koren vĭlˈhĕlm frēˈmän kôˈrən byĕrkˈnĕs [key], 1862–1951, Norwegian physicist and pioneer in modern meteorology. He worked on applying hydrodynamic and thermody...

continental drift

(Encyclopedia)CE5 Continental drift (arrows indicate the directions of motion of the landmasses) A. Proposed reconstruction of the supercontinent Pangaea indicating the major present landmasses B. Proposed recon...