Columbia Encyclopedia

Search results

500 results found

crypt

(Encyclopedia)crypt krĭpt [key] [Gr.,=hidden], vault or chamber beneath the main level of a church, used as a meeting place or burial place. It undoubtedly developed from the catacombs used by early Christians as ...

Chirico, Giorgio de

(Encyclopedia)Chirico, Giorgio de jōrˈjō dā kēˈrēkō [key], 1888–1978, Italian painter, b. Vólos, Greece. Chirico developed his enigmatic vision in Munich and Italy and from 1911 to 1915 he worked and exh...

proper motion

(Encyclopedia)proper motion, in astronomy, apparent movement of a star on the celestial sphere, usually measured as seconds of arc per year; it is due both to the actual relative motions of the sun and the star thr...

Bordone, Paris

(Encyclopedia)Bordone, Paris päˈrēs bōrdôˈnā [key], 1500–1571, Venetian painter of the Renaissance; pupil of Titian. Skillful in his use of color, he was particularly interested in variations of texture in...

Brooklyn Academy of Music

(Encyclopedia)Brooklyn Academy of Music, performing arts center located in the borough of Brooklyn, N.Y. and popularly known as BAM. Founded in 1859 and opened in 1861, it is the oldest such institution still in op...

Lorentz contraction

(Encyclopedia)Lorentz contraction lôrˈĕnts [key], in physics, contraction or foreshortening of a moving body in the direction of its motion, proposed by H. A. Lorentz on theoretical grounds and based on an earli...

antenna

(Encyclopedia)antenna ăntĕnˈə [key], in electronics, system of wires or other conductors used to transmit or receive radio or other electromagnetic waves (see radio); sometimes called an aerial. The idea of usi...

dark energy

(Encyclopedia)dark energy, repulsive force that opposes the self-attraction of matter (see gravitation) and causes the expansion of the universe to accelerate. The search for dark energy was triggered by the discov...

field, in physics

(Encyclopedia)field, in physics, region throughout which a force may be exerted; examples are the gravitational, electric, and magnetic fields that surround, respectively, masses, electric charges, and magnets. The...

probability

(Encyclopedia)probability, in mathematics, assignment of a number as a measure of the “chance” that a given event will occur. There are certain important restrictions on such a probability measure. In any exper...