Page:Reflections on the Motive Power of Heat.djvu/151

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IV. [1]

CARNOT'S THEORY OF THE MOTIVE POWER OF HEAT. [2]

WITH NUMERICAL RESULTS DEDUCED FROM REGNAULT'S EXPERIMENTS ON STEAM. [3]

By Sir William Thomson [Lord Kelvin].

1. The presence of heat may be recognized in every natural object; and there is scarcely an operation in nature which is not more or less

  1. From Transactions of the Edinburgh Royal Society, xiv. 1849; Annales de Chimie, xxxv. 1852.
  2. Published in 1824, in a work entitled "Réflexions sur la Puissance Motrice du Feu, et sur les Machines Propres à Developer cette Puissance. Par S. Carnot." [Note of Nov. 5, 1881. The original work has now been republished, with a biographical notice, Paris, 1878.]
  3. An account of the first part of a series of researches undertaken by Mons. Regnault, by order of the late French Government, for ascertaining the various physical data of importance in the theory of the steam-engine, has

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