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Adams, John, American composer

(Encyclopedia)Adams, John (John Coolidge Adams), 1947–, American composer, b. Worcester, Mass. A clarinetist, he studied composition at Harvard (B.A. 1969, M.A. 1971). Often regarded as the most outstanding, tech...

British Library

(Encyclopedia)British Library, national library of Great Britain, located in London; one of the world's great libraries. Long a part of the British Museum, the library collection originated in 1753 when the governm...

heart, in anatomy

(Encyclopedia)CE5 Cross section of heart, with arrows indicating direction of blood flow heart, muscular organ that pumps blood to all parts of the body. The rhythmic beating of the heart is a ceaseless activit...

radio

(Encyclopedia)CE5 A. AM transmitter B. AM receiver radio, transmission or reception of electromagnetic radiation in the radio frequency range. The term is commonly applied also to the equipment used, especially...

rattlesnake

(Encyclopedia)rattlesnake, poisonous New World snake of the pit viper family, distinguished by a rattle at the end of the tail. The head is triangular, being widened at the base. The rattle is a series of dried, ho...

reading, mental process

(Encyclopedia)reading, process of mentally interpreting written symbols. Facility in reading is an essential factor in educational progress, and instruction in this basic skill is a primary purpose of elementary ed...

Beach Boys, The

(Encyclopedia)Beach Boys, The, American rock music band formed in 1961 by brothers Brian Wilson, 1942–, Dennis Wilson, 1944–83, and Carl ...

energy

(Encyclopedia)CE5 Relations between potential energy (PE) and kinetic energy (KE) for a swinging pendulum energy, in physics, the ability or capacity to do work or to produce change. Forms of energy include hea...

wave, in physics

(Encyclopedia)wave, in physics, the transfer of energy by the regular vibration, or oscillatory motion, either of some material medium or by the variation in magnitude of the field vectors of an electromagnetic fie...

Danish language

(Encyclopedia)Danish language, member of the North Germanic, or Scandinavian, group of the Germanic subfamily of the Indo-European family of languages. The official language of Denmark, it is spoken by over 5 milli...