Note on the Dimensions and Meaning of J, usually called the Mechanical Equivalent of Heat

descriptionPublicationkeyboard_double_arrow_right Article 02 Feb 1888 English Publisher:Springer Science and Business Media LLCJournal:Nature, volume 37, pages 320-320 (issn: 0028-0836, eissn: 1476-4687,

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Authors: Lodge, Alfred;

doi: 10.1038/037320b0

Note on the Dimensions and Meaning of J, usually called the Mechanical Equivalent of Heat

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Abstract

THE title “mechanical equivalent of heat” tends to make one consider that J means the ratio of a quantity of mechanical energy to an equivalent quantity of heat; but since heat is mechanical energy (in a molecular form) it follows that J on this supposition is equal to unity, and therefore unnecessary.

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