Mechanical equivalent of heat
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The following are related quotes:
- “The mechanical equivalents of heat determined by the various series of experiments given in this paper are 823, 795, 820, 814, and 760. The mean of the last three, which I take as least liable to error, is 798 lb, a result so near 838 lbs, the equivalent which I deduced from my magnetical experiments, as to confirm, in a remarkable manner, the above explanation of the phenomena described in this paper, and to afford a new and, to my mind, powerful argument in favor of the ‘dynamical theory of heat’ which originated with Bacon, Newton, and Boyle, and has been at a later period so well supported by the experiments of Rumford, Davy, and Forbes.”
- (a) Joule, James. (1844). “On the Changes of Temperature produced by the Rarefaction and Condensation of Air” (abstract) (by: Dr. Roget) (note: paper, supposedly was rejected by Royal Society), Proceedings of the Royal Society, Jun 20; published in: Philosophical Magazine, 3; May; both in: Scientific Papers, Volume One (pg. 171-89; quote, pg. 189). Publisher.
(b) Cardwell, Donald. (1971). From Watt to Clausius: the Rise of Thermodynamics in the Early Industrial Age (pg. 235; image, plate 23). Cornell University Press.
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