Conservation of Energy: Being an Elementary Treatise on Energy and Its LawsKing, 1873 - 180 ページ |
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absorbed heat actual motion antimony atoms attraction battery bismuth body burn carbonic acid cause changed into heat chemical affinity chemical separation coal conductor conservation of energy converted current of electricity decompose delicacy of construction earth electric current electrical separation electricity in motion energy of chemical energy of position energy of visible engine fact force of cohesion form of energy friction galvanometer glass gravity head of water heat engines Heraclitus high temperature hotter instance Joule kilogramme of water kind laws of energy machine magnet mass means medium metal metres molecular molecules momentum moon moving nature oxidize oxygen particles pendulum perpetual motion piston planets platinum poles positive electricity produced quantity radiant energy regard rifle right-hand coil rubbed solar system species of energy spent substance suppose Thomson tion transmutation of energy tricity truth ultimately velocity vibrating visible energy visible motion weight wire zinc
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134 ページ - Aristotle decides that there is no void, on such arguments as this :' — In a void there could be no difference of up and down ; for as in nothing there are no differences, so there are none in a privation or negation...
7 ページ - ... has given up its pretension to stand as an absolute beginning, and serves only as a necessary rest for exhausted analysis, before setting forth on the return journey of deduction.
153 ページ - Universe as a candle not lit, then it is perhaps conceivable to regard it as having been always in existence ; but if we regard it rather as a candle that has been lit, we become absolutely certain that it cannot have been burning from eternity, and that a time will come when it will cease to burn. We are led to look to a beginning in which the particles of matter were in a diffuse chaotic state, but endowed with the power of gravitation ; and we are led to look to an end in which the whole Universe...
136 ページ - The ancients possessed great genius and intellectual power, but they were deficient in physical conceptions, and, in consequence, their ideas were not prolific. It cannot indeed be said that we of the present age are deficient in such conceptions ; nevertheless, it may be questioned whether there is not a tendency to rush into the opposite extreme, and to work physical conceptions to an excess.
142 ページ - Clausius, Tait, Andrews, Maxwell, who, along with many others, have advanced the subject ; and while Joule gave his chief attention to the laws which regulate the transmutation of mechanical energy into heat, Thomson, Rankine, and Clausius gave theirs to the converse problem, or that which relates to the transmutation of heat into mechanical energy. Thomson, especially, has pushed forward so resolutely from this point of view that he has succeeded in grasping a principle scarcely inferior in importance...
153 ページ - ... happen to its visible energy. We have spoken already about a medium pervading space, the office of which appears to be to degrade and ultimately extinguish all differential motion, just as it tends to reduce and ultimately equalize all difference of temperature. Thus the universe would ultimately become an equally heated mass, utterly worthless as far as the production of work is concerned, since such production depends upon difference of temperature. Although, therefore, in a strictly mechanical...