The Scientific Papers of James Prescott Joule, 第 1 巻Taylor & Francis, 1884 - 657 ページ |
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多く使われている語句
amalgamated zinc apparatus arrangement ascertain atmosphere atoms attraction battery bodies Broom Hill capacity for heat chemical circuit coil combustion condensation connexion copper wire current electricity cylinder Daniell's cells deflection degree difference dilute sulphuric acid electric current electrode electrolytic cell electromotive force employed equal Fahr foot foot-pounds Friction gain Galva galvanometer gaseous grains gramme heat due heat evolved Hence hydrogen immersed inch in diameter inches long increase J. P. JOULE length liquid living force loss magnetic intensity magneto-electricity Manchester mechanical force mechanical power ment mercury metal minute motion needle nitric acid observed obtained oxygen pairs particles piston placed plate platinized silver platinum pound of water pressure produced proportional quantity of heat Radiation resistance to conduction resistance to electrolysis revolving electro-magnet solution specific heat steel sulphate Table tact broken theory thermometer tion tricity tube velocity vessel vis viva weight Whalley Range wire
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301 ページ - It is hardly necessary to add that anything which any insulated body, or system of bodies, can continue to furnish without limitation, cannot possibly be a material substance; and it appears to me to be extremely difficult, if not quite impossible, to form any distinct idea of anything capable of being excited and communicated in the manner the Heat was excited and communicated in these experiments, except it be MOTION.
295 ページ - It seems possible to account for all the phenomena of heat, if it be supposed that in solids the particles are in a constant state of vibratory motion, the particles of the hottest bodies moving with the greatest velocity...
184 ページ - ... no change of temperature occurs when air is allowed to expand in such a manner as not to develop mechanical power.
158 ページ - Physiology*,' he had not pursued the subject further. It is unquestionable that heat is produced by such friction, but it must be understood that the mechanical force expended in the friction is a part of the force of affinity which causes the venous blood to unite with oxygen ; so that the whole heat of the system must still be referred to the chemical changes. But if the animal were engaged in turning a piece of machinery, or in ascending a mountain, I apprehend that in proportion to the muscular...
120 ページ - The magnetic electrical machine enables us to convert mechanical power into heat by means of the electric currents which are induced by it ; and I have little doubt that, by interposing an electromagnetic engine in the circuit of a battery, a diminution of the heat evolved per equivalent of chemical change would be the consequence, and this in proportion to the mechanical...
336 ページ - ... the ratio of the specific heat of air at constant pressure to the specific heat at constant volume.
299 ページ - Heat is a very brisk agitation of the insensible parts of the object, which produces in us that sensation, from whence we denominate the object hot ; so what in our sensation is heat, in the object is nothing but motion.
156 ページ - That the quantity of heat produced by the friction of bodies, whether solid or liquid, is always proportional to the quantity of force extended.
335 ページ - W . where y is the ratio of the specific heat of air at constant pressure to that at constant volume.
297 ページ - ... grs. Therefore, since it is manifest that the pressure will be proportional to the square of the velocity of the particles, we shall have for the velocity of the particles requisite to produce the pressure of 14,831,712 grs.