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Federal Reserve System

(Encyclopedia)Federal Reserve System, central banking system of the United States. Established in 1913, it began to operate in Nov., 1914. Its setup, although somewhat altered since its establishment, particularly ...

De Forest, John William

(Encyclopedia)De Forest, John William də fôrˈəst, fŏrˈ– [key], 1826–1906, American author, b. Seymour, Conn. He served in the Civil War, chiefly as a captain. His vivid accounts of battle scenes in Louisi...

expert system

(Encyclopedia)expert system, a computer system or program that uses artificial intelligence techniques to solve problems that ordinarily require a knowledgeable human. The method used to construct such systems, kno...

Ptolemaic system

(Encyclopedia)Ptolemaic system tŏlˌəmāˈĭk [key], historically the most influential of the geocentric cosmological theories, i.e., theories that placed the earth motionless at the center of the universe with a...

respiratory system

(Encyclopedia)respiratory system: see respiration. ...

integumentary system

(Encyclopedia)integumentary system: see skin.

duodecimal system

(Encyclopedia)duodecimal system: see numeration. ...

reproductive system

(Encyclopedia)CE5 Reproductive system reproductive system, in animals, the anatomical organs concerned with production of offspring. In humans and other mammals the female reproductive system produces the femal...

Bach system

(Encyclopedia)Bach system: see Bach, Alexander.

solar system

(Encyclopedia)CE5 Solar system CE5 solar system, the sun and the surrounding planets, natural satellites, dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the ...