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waterfall

(Encyclopedia)waterfall, a sudden unsupported drop in a stream. It is formed when the stream course is interrupted as when a stream passes over a layer of harder rock—often igneous—to an area of softer and ther...

tablature

(Encyclopedia)tablature tăbˈləcho͝or [key], in music, a generic system of musical notation indicating actions that the player must take, rather than “representing” the music itself that will result from tho...

spinet

(Encyclopedia)spinet, musical instrument of the harpsichord family. Although the terms virginal and spinet, interchangeable until the end of the 17th cent., were sometimes used indiscriminately to designate any har...

Schnabel, Artur

(Encyclopedia)Schnabel, Artur ärˈto͝or shnäˈbəl [key], 1882–1951, Austrian-American pianist, b. Lipnik, at that time in Austria. He studied (1891–97) with Leschetizky and began his concert tours in Europe...

Sessions, Roger

(Encyclopedia)Sessions, Roger, 1896–1985, American composer and teacher, b. Brooklyn, N.Y. Sessions was a pupil of Horatio Parker at Yale and of Ernest Bloch. He taught (1917–21) at Smith, leaving to teach at t...

Einstein, Albert

(Encyclopedia)Einstein, Albert īnˈstīn [key], 1879–1955, American theoretical physicist, known for the formulation of the relativity theory, b. Ulm, Germany. He is recognized as one of the greatest physicists ...

Erdös, Paul

(Encyclopedia)Erdös, Paul ĕrˈdös [key], 1913–96, Hungarian mathematician, b. Budapest. A child prodigy, he was mostly home-schooled by his parents—both teachers of mathematics—until he entered the Univ. o...

Aumann, Robert John

(Encyclopedia)Aumann, Robert John, American-Israeli mathematician, b. Frankfurt, Germany, Ph.D. Massachusetts Institute of Technology, 1955. He immigrated with his family to the United States in 1938, and moved to ...

Wilson, Robert Butler, Jr.

(Encyclopedia)Wilson, Robert Butler, Jr., 1973–, American economist, b. Geneva, Nebr., D.B.A. Harvard, 1963. A faculty member at the Stanford Graduate School of Business since 1964 (emeritus from 2004), he is a s...

Carter, Elliott Cook, Jr.

(Encyclopedia)Carter, Elliott Cook, Jr., 1908–2012, American composer, b. New York City. Carter is considered by many to be the most important late-20th-century American composer. Mentored early in life by Charle...