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feedback
(Encyclopedia) CE5 Basic feedback control system feedback, arrangement for the automatic self-regulation of an electrical, mechanical, or biological system by returning part of its output as…fertilization
(Encyclopedia) CE5 Fertilization of an egg cell fertilization, in biology, process in the reproduction of both plants and animals, involving the union of two unlike sex cells (gametes), the sperm…bone
(Encyclopedia) CE5 Bone bone, hard tissue that forms the skeleton of the body in vertebrate animals. In the very young, the skeleton is composed largely of cartilage and is therefore pliable,…capital, in architecture
(Encyclopedia) CE5 A. Types of capitals B. Parts of a capital capital, in architecture, the crowning member of a column, pilaster, or pier. It acts as the bearing member beneath the lintel or…unconscious
(Encyclopedia) unconscious, in psychology, that aspect of mental life that is separate from immediate consciousness and is not subject to recall at will. Sigmund Freud regarded the unconscious as a…Bernoulli's principle
(Encyclopedia) CE5 Bernoulli's principle Bernoulli's principle, physical principle formulated by Daniel Bernoulli that states that as the speed of a moving fluid (liquid or gas) increases, the…witch hazel
(Encyclopedia) CE5 Witch hazel, Hamamelis virginiana witch hazel, common name for some members of the Hamamelidaceae, a family of trees and shrubs found mostly in Asia. The family includes the…wheel and axle
(Encyclopedia) CE5 Wheel and axle wheel and axle, simple machine consisting of a wheel mounted rigidly upon an axle or drum of smaller diameter, the wheel and the axle having the same axis. It is…adenosine triphosphate
(Encyclopedia) CE5 Adenosine triphosphate (ATP) adenosine triphosphate (ATP)adenosine triphosphateədĕnˈəsēn trīˌfŏsˈfāt [key], organic compound composed of adenine, the sugar ribose, and three…vein
(Encyclopedia) CE5 Cross section of vein showing valves vein, blood vessel that returns blood to the heart. Except for the pulmonary vein, which carries oxygenated blood from the lungs to the…Trending
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