“This law (regarding the theoretical efficiency of heat engines by Mr. Joule), and the law of the maximum efficiency of heat engines, are particular cases of a general law which regulates all transformation of energy, and is the basis of the Science of Energetics.”

—  William John Macquorn Rankine

Manual of Applied Mechanics, (1858) London and Glasgow : Richard Griffin and Company, p. 630

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William John Macquorn Rankine28
civil engineer 1820–1872

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