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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 ...

altazimuth coordinate system

(Encyclopedia)altazimuth coordinate system ăltăzˈəməth [key] or horizon coordinate system, astronomical coordinate system in which the position of a body on the celestial sphere is described relative to an obs...

pitot static system

(Encyclopedia)pitot static system pētōˈ [key], device for measuring the rate at which a fluid flows. Among the principal applications of the device are an airspeed indicator for aircraft and a distance and speed...

transdermal delivery system

(Encyclopedia)transdermal delivery system: see skin patch. ...

ring, mathematical system

(Encyclopedia)ring, in mathematics, system consisting of a set R of elements and two binary operations, such that addition makes R a commutative group and multiplication is associative and distributes over addition...

parasympathetic nervous system

(Encyclopedia)parasympathetic nervous system: see nervous system. ...

peripheral nervous system

(Encyclopedia)peripheral nervous system: see nervous system. ...

autonomic nervous system

(Encyclopedia)autonomic nervous system: see nervous system. ...

sympathetic nervous system

(Encyclopedia)sympathetic nervous system: see nervous system. ...

Space Transportation System

(Encyclopedia)Space Transportation System, official designation for the U.S. space shuttle. ...