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portal system
(Encyclopedia)portal system: see circulatory system. ...Fontenelle, Bernard le Bovier de
(Encyclopedia)Fontenelle, Bernard le Bovier de bĕrnärˈ lə bōvyāˈ də fôNtənĕl [key], 1657–1757, French writer; nephew of Corneille. His forte was the interpretation of science. His works include Dialogu...ecliptic coordinate system
(Encyclopedia)ecliptic coordinate system, an astronomical coordinate system in which the principal coordinate axis is the ecliptic, the apparent path of the sun through the heavens. The ecliptic poles are the two p...Chinese examination system
(Encyclopedia)Chinese examination system, civil service recruitment method and educational system employed from the Han dynasty (206 b.c.–a.d. 220) until it was abolished by the Ch'ing dowager empress Tz'u Hsi in...European Monetary System
(Encyclopedia)European Monetary System, arrangement by which most nations of the European Union (EU) linked their currencies to prevent large fluctuations relative to one another. It was organized in 1979 to stabil...Farm Credit System
(Encyclopedia)Farm Credit System: see Farm Credit Administration. ...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 ...equatorial coordinate system
(Encyclopedia)CE5 Equatorial coordinate system equatorial coordinate system, the most commonly used astronomical coordinate system for indicating the positions of stars or other celestial objects on the celesti...instrument-landing system
(Encyclopedia)CE5 Instrument-landing system (ILS), the most common instrument-landing approach system, uses two beams to guide an airplane. instrument-landing system (ILS), ground-based radio system designed to...international monetary system
(Encyclopedia)international monetary system, rules and procedures by which different national currencies are exchanged for each other in world trade. Such a system is necessary to define a common standard of value ...Browse by Subject
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