The Scientific Papers of James Prescott Joule, Volume 1 |
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Contents
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Common terms and phrases
according action apparatus appears applied arrangement ascertain atmosphere attraction battery bodies broken capacity cause cells chemical circuit coil column conduction consequence consisting containing copper copper wire Corrected deflection determined diameter difference dilute direction distance divided effect electricity electro-magnet electrode electrolysis elongation employed engine equal equivalent experiments feet fluid foot force former Friction gain galvanometer give given grains greater heat evolved Hence hydrogen immersed inch increase intensity iron latter length liquid loss magnetic Mean mechanical mercury metal minute motion necessary needle observed obtained oxygen pairs particles passed piece placed plate positive pound present pressure produced proportional quantity of heat Radiation raise receiver represented resistance scale silver similar solution specific heat square sulphuric acid surface Table temperature theory thermometer thick tion vessel voltaic weight whole wire zinc
Popular passages
Page 301 - 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.
Page 295 - 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...
Page 184 - ... no change of temperature occurs when air is allowed to expand in such a manner as not to develop mechanical power.
Page 158 - 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...
Page 120 - 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...
Page 336 - ... the ratio of the specific heat of air at constant pressure to the specific heat at constant volume.
Page 299 - 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.
Page 156 - That the quantity of heat produced by the friction of bodies, whether solid or liquid, is always proportional to the quantity of force extended.
Page 335 - W . where y is the ratio of the specific heat of air at constant pressure to that at constant volume.
Page 297 - ... 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.
Bibliographic information
| Title | The Scientific Papers of James Prescott Joule, Volume 1 The Scientific Papers of James Prescott Joule, James Prescott Joule |
| Author | James Prescott Joule |
| Contributors | James Prescott Joule, Physical Society (Great Britain) |
| Publisher | Taylor & Francis, 1884 |
| Original from | the University of Wisconsin - Madison |
| Digitized | 17 Jan 2008 |
| Length | 657 pages |
| Export Citation | BiBTeX EndNote RefMan |