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mechanical engineering
mechanical engineering Field of engineering concerned with the design, construction, and operation of machinery. Mechanical engineers work in many branches of industry, including transportation, power generation and tool manufacture. Achievements in mechanical engineering include the development of...
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defense mechanism
defense mechanism in psychoanalysis, any of a variety of unconscious personality reactions which the ego uses to protect the conscious mind from threatening feelings and perceptions. Sigmund Freud first used defense as a psychoanalytic term (1894), but he did not break the notion into categorie...
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James Prescott Joule
James Prescott Joule , 1818-89, English physicist. His scientific researches began in his youth when he invented an electromagnetic engine. Joule made valuable contributions to the fields of heat, electricity, and thermodynamics. His work established the mechanical theory of heat , and he was the f...
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fluid mechanics
fluid mechanics branch of mechanics dealing with the properties and behavior of fluids, i.e., liquids and gases. Because of their ability to flow, liquids and gases have many properties in common not shared by solids. The special study of fluids in motion, or fluid dynamics, makes up the larger p...
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mechanics
mechanics branch of physics concerned with motion and the forces that tend to cause it; it includes study of the mechanical properties of matter , such as density , elasticity , and viscosity . Mechanics may be roughly divided into statics and dynamics ; statics deals with bodies at re...
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block and tackle
block and tack·le
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n.
a mechanism consisting of ropes and one or more pulley-blocks, used for lifting or pulling heavy objects.
block and tackle...
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gremlin
gremlin in American folklore, malicious, airborne supernatural being. Gremlins were first heard of during World War II as creatures responsible for unexplainable mechanical failures and disruptions in aircraft.
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Kariya
Kariya , city (1990 pop. 120,126), Aichi prefecture, central Honshu, Japan. It is an industrial center with textile, mechanical, food-processing industries, and ceramic tile industries.
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mechanized warfare
mechanized warfare employment of modern mobile attack and defense tactics that depend upon machines, more particularly upon vehicles powered by gasoline and diesel engines. Central to the waging of mechanized warfare are the tank and armored vehicle, with support and supply from motorized columns a...
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William John Macquorn Rankine
William John Macquorn Rankine , 1820-72, Scottish engineer and physicist. Serving as a professor of engineering at the Univ. of Glasgow from 1855, he made valuable contributions to civil and mechanical engineering as well as to thermodynamics. His manuals of applied mechanics and of civil engineerin...
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