Abstract
I AM sorry to trouble you with one more letter on this subject. Prof. Lodge objected to the energy formula wv2/2g, and stated that he could only bestow his approbation on a formula which was “independent of every system of units.” His example of such a formula involved three quantities of the same kind—namely, three lengths. Being invited to give a formula involving three different quantities—e.g. weight, volume, and specific gravity—which should come up to his standard, he gives W = sV. Now this formula is certainly independent of every system of units, in the sense that it cannot be used with any known system of units (not even accurately with the C.G.S. units).
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JACKSON, C. Symbols of Applied Algebra. Nature 55, 366 (1897). https://doi.org/10.1038/055366a0
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DOI: https://doi.org/10.1038/055366a0
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