Abstract
PROF. EVERETT's letter (November 8, p. 31) calls attention to a difficulty which is apparently felt by students over the attempted elementary method of deducing the general expression for the velocity of sound given in Maxwell's “Heat.” Advanced students need feel no difficulty of the kind, because they arrive at it by another path; but inasmuch as the Rankine method seems the easiest available to intermediate students, it is desirable as a matter of pedagogy to put it in its simplest form; and so I venture to quote here the plan I have for some time adopted.
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LODGE, O. Rankine's Modification of Newton's Investigation of the Velocity of Sound in any Substance. Nature 39, 79–80 (1888). https://doi.org/10.1038/039079b0
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DOI: https://doi.org/10.1038/039079b0
