Abstract
II. THE form of point most favourable to the production of the arc has been minutely investigated by the authors. By turning wires in a lathe to various outlines they arrived line, which corresponded to that found experimentally, was one in which each succeeding ordinate was in the ratio of the square root of the odd numbers 1, 3, 5, &c., the sectional areas being consequently in the ratio of the odd numbers.
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Electric in Discharge in Gases 1 . Nature 18, 547–551 (1878). https://doi.org/10.1038/018547a0
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DOI: https://doi.org/10.1038/018547a0