Columbia Encyclopedia

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book

(Encyclopedia)book. The word book has come to have many meanings, e.g., any collection of sheets of paper, wood, or other material sewn or bound together; a division of a written work (books of the Bible, books of ...

Sills, Beverly

(Encyclopedia)Sills, Beverly, 1929–2007, American coloratura soprano, b. Brooklyn, N.Y., as Belle Silverman. Her childhood career as a radio singer (when she was first nicknamed “Bubbles”) led to voice studie...

Sutter, John Augustus

(Encyclopedia)Sutter, John Augustus, 1803–80, American pioneer, b. Kandern, Baden, of Swiss parents. His original name was Johann August Suter. He emigrated to the United States in 1834, went to St. Louis, then t...

pi

(Encyclopedia)pi, in mathematics, the ratio of the circumference of a circle to its diameter. The symbol for pi is π. The ratio is the same for all circles and is approximately 3.1416. It is of great importance in...

Bouillon, Henri de La Tour d'Auvergne, vicomte de Turenne, duc de

(Encyclopedia)Bouillon, Henri de La Tour d'Auvergne, vicomte de Turenne, duc de dük də bo͞oyôNˈ [key], 1555–1623, marshal of France, diplomat, and Protestant leader. He served with Henry IV against the Cath...

calculus of variations

(Encyclopedia)calculus of variations, branch of mathematics concerned with finding maximum or minimum conditions for a relationship between two or more variables that depends not only on the variables themselves, a...

Swiss literature

(Encyclopedia)Swiss literature. The literature of Switzerland is written in German, French, Italian, and Romansh, with German predominating. The extensive literature in Romansh dialect (see Rhaeto-Romanic) is littl...

counterpoint

(Encyclopedia)counterpoint, in music, the art of combining melodies each of which is independent though forming part of a homogeneous texture. The term derives from the Latin for “point against point,” meaning ...

Old Catholics

(Encyclopedia)Old Catholics, Christian denomination established by German Catholics who separated themselves from the Roman Catholic Church when they rejected (1870) the decrees of the First Vatican Council, especi...

Brethren

(Encyclopedia)Brethren, German Baptist religious group. They were popularly known as Dunkards, Dunkers, or Tunkers, from the German for “to dip,” referring to their method of baptizing. The Brethren evolved fro...