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astrology

(Encyclopedia)astrology, form of divination based on the theory that the movements of the celestial bodies—the stars, the planets, the sun, and the moon—influence human affairs and determine the course of event...

infrared radiation

(Encyclopedia)infrared radiation, electromagnetic radiation having a wavelength in the range from c.75 × 10−6 cm to c.100,000 × 10−6 cm (0.000075–0.1 cm). Infrared rays thus occupy that part of the electrom...

brown dwarf

(Encyclopedia)brown dwarf, in astronomy, celestial body that is larger than a planet but does not have sufficient mass to convert hydrogen into helium via nuclear fusion as stars do. Also called “failed stars,”...

marine engine

(Encyclopedia)marine engine, machine for the propulsion of watercraft. The earliest marine power plants, reciprocating steam engines, were used almost exclusively until the early 1900s. In later ship construction t...

Colorado River storage project

(Encyclopedia)Colorado River storage project, a multipurpose plan, undertaken by the U.S. Bureau of Reclamation in 1956, to control the flow of the upper Colorado and its tributaries and to aid in the development o...

price

(Encyclopedia)price, amount of money for which a unit of goods or services is exchanged. Price is equivalent to market value and may or may not measure the intrinsic value of the goods or services to the buyer or s...

employment bureau

(Encyclopedia)employment bureau, a government-run establishment for bringing together the employer offering work and the employee seeking it. As a not-for-profit service, employment bureaus operate differently from...

Archimedes' principle

(Encyclopedia)Archimedes' principle, principle that states that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid. The principle applies to both floating and submerged bo...

Synoptic Gospels

(Encyclopedia)Synoptic Gospels sĭnŏpˈtĭk [key] [Gr. synopsis=view together], the first three Gospels (Matthew, Mark, and Luke), considered as a unit. They bear greater similarity to each other than any of them ...

soviet

(Encyclopedia)soviet, primary unit in the political organization of the former USSR. The term is the Russian word for council. The first soviets were revolutionary committees organized by Russian socialists in the ...