Theory of Heat (Google eBook)

Front Cover
Longmans, 1871 - Heat - 312 pages
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Contents

I
1
II
32
III
54
IV
74
V
94
VI
108
VII
127
VIII
138
XII
183
XIII
189
XIV
197
XV
210
XVI
230
XVII
233
XVIII
253
XIX
260

IX
163
X
171
XI
176
XX
274
XXI
281

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Page 82 - The specific gravity of a body is the ratio of its density to that of some standard substance.
Page 170 - For compressible flow this becomes: where y is the ratio of the specific heat at constant pressure to that at constant volume...
Page 153 - It is impossible for a self-acting machine, unaided by any external agency, to convey heat from one body to another at a higher temperature ; or heat cannot of itself (that is, without compensation) pass from a colder to a warmer body.
Page 77 - The straight line or distance between the centres of the transverse lines in the two gold plugs in the bronze bar deposited in the Office of the Exchequer shall be the genuine standard of length at 62 F., and if lost it shall be replaced by means of its copies.
Page 74 - The most important step in the progress of every science is the measurement of quantities. Those whose curiosity is satisfied with observing what happens have occasionally done service by directing the attention of others to the phenomena they have seen; but it is to those who endeavour to find out how much there is of anything that we owe all the great advances in our knowledge.
Page 24 - ... warmed, though the lowest layer is always the hottest. As the temperature increases, the absorbed air which is generally found in ordinary water, is expelled and rises in small bubbles without noise. At last the water in contact with the heated metal becomes so hot that, in spite of the pressure of the atmosphere on the surface of the water, the additional pressure due to the water in the vessel, and the cohesion of the water itself, some of the water at the bottom is transformed into steam,...
Page 309 - ... division in which there is a small hole, and that a being, who can see the individual molecules, opens and closes this hole, so as to allow only the swifter molecules to pass from A to B, and only the slower ones to pass from B to A. He will thus, without expenditure of work, raise the temperature of B and lower that of A, in contradiction to the second law of thermodynamics.
Page 308 - But if we conceive a being whose faculties are so sharpened that he can follow every molecule in its course...
Page i - THE ELEMENTS OF MECHANISM, designed for Students of Applied Mechanics. By TM GOODEVE, MA, Professor of Natural Philosophy in King's College, London. With 206 Figures on Wood. Post 8vo 6
Page 278 - Maxwell denned the coefficient of viscosity as follows: "The coefficient of viscosity of a substance is measured by the tangential force on unit area of either of two horizontal planes at unit distance apart, one of which is fixed while the other moves with unit velocity, the space between being filled with the viscous substance.

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