Abstract
A NAME seems to be wanted for the practical unit of self-induction, viz. an ohm multiplied by a second; in other words, for a length approximately equal to an earth-quadrant. Profs. Ayrton and Perry call it a “secohm.” Why not call it a “quad”? It would be a handy great length for many other purposes. For instance, the velocity of light in air would be 30 quads per second, in common glass 20 quads per second.
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LODGE, O. Names for Electric Units of Self-Induction and Conductivity. Nature 36, 174 (1887). https://doi.org/10.1038/036174a0
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DOI: https://doi.org/10.1038/036174a0
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