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Conservation of energy   /kˌɑnsərvˈeɪʃən əv ˈɛnərdʒi/   Listen
noun
Conservation  n.  The act of preserving, guarding, or protecting; the keeping (of a thing) in a safe or entire state; preservation. "A step necessary for the conservation of Protestantism." "A state without the means of some change is without the means of its conservation."
Conservation of areas (Astron.), the principle that the radius vector drawn from a planet to the sun sweeps over equal areas in equal times.
Conservation of energy, or Conservation of force (Mech.), the principle that the total energy of any material system is a quantity which can neither be increased nor diminished by any action between the parts of the system, though it may be transformed into any of the forms of which energy is susceptible.


Energy  n.  (pl. energies)  
1.
Internal or inherent power; capacity of acting, operating, or producing an effect, whether exerted or not; as, men possessing energies may suffer them to lie inactive. "The great energies of nature are known to us only by their effects."
2.
Power efficiently and forcibly exerted; vigorous or effectual operation; as, the energy of a magistrate.
3.
Strength of expression; force of utterance; power to impress the mind and arouse the feelings; life; spirit; said of speech, language, words, style; as, a style full of energy.
4.
(Physics) Capacity for performing work. Note: The kinetic energy of a body is the energy it has in virtue of being in motion. It is measured by one half of the product of the mass of each element of the body multiplied by the square of the velocity of the element, relative to some given body or point. The available kinetic energy of a material system unconnected with any other system is that energy which is due to the motions of the parts of the system relative to its center of mass. The potential energy of a body or system is that energy which is not kinetic; energy due to configuration. Kinetic energy is sometimes called actual energy. Kinetic energy is exemplified in the vis viva of moving bodies, in heat, electric currents, etc.; potential energy, in a bent spring, or a body suspended a given distance above the earth and acted on by gravity.
Accumulation of energy, Conservation of energy, Correlation of energy, and Degradation of energy, etc. (Physics) See under Accumulation, Conservation, Correlation, etc.
Synonyms: Force; power; potency; vigor; strength; spirit; efficiency; resolution.





Collaborative International Dictionary of English 0.48


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"Conservation of energy" Quotes from Famous Books



... most desperate moment of the city's history, has carried us a little, but only a little, away from the matter in hand—the political ideas of the Lysistrata. Political wisdom, like human folly, seems to obey a law known to men of science as "the Conservation of Energy"—quantity and quality are permanent, form alone changes. It is the Aristophanic method that differs so greatly from that of most modern satirists. For Aristophanes does not confine himself to driving the blade of his wit into the rotten parts ...
— Pot-Boilers • Clive Bell
... probable worth of my philosophy. 'Radium' came the other day as part of the day's content, and seemed for a moment to contradict our ideas of the whole order of nature, that order having come to be identified with what is called the conservation of energy. The mere sight of radium paying heat away indefinitely out of its own pocket seemed to violate that conservation. What to think? If the radiations from it were nothing but an escape of unsuspected 'potential' energy, pre- existent inside of the atoms, the principle ...
— Pragmatism - A New Name for Some Old Ways of Thinking • William James
... deals with what we do not know, but that science is destroying what we thought we did know. Nearly all the latest discoveries have been destructive, not of the old dogmas of religion, but rather of the recent dogmas of science. The conservation of energy could not itself be entirely conserved. The atom was smashed to atoms. And dancing to the tune of Professor Einstein, even the law of gravity is ...
— The New Jerusalem • G. K. Chesterton
... physical sciences discovered in the nineteenth century a universal law of Nature, always believed by the wisest since the time of Thales, but never before proven, which is now commonly known as the law of the conservation of energy. When we say to a child, "You cannot eat your cake and have it," we are expressing the law of the conservation of matter, which is really a more or less accurate part-expression of the law of the conservation of energy. The law that ...
— Woman and Womanhood - A Search for Principles • C. W. Saleeby
... The observation of the temperature and the pulse have shown loss of vital energy. The same will happen in consequence of the mediumistic phenomena. The law of the conservation of energy.... ...
— Redemption and Two Other Plays • Leo Tolstoy et al


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