Abstract
THE enclosed photograph of an oscillatory electric spark, like most of those which I have taken, differs in some respects, so far as I have seen, from those which have been recorded by other experimenters. It was obtained by the discharge of 22 square feet of coated surface through ¼ mile of coiled wire, the electrodes being of magnesium. The picture was focused on a circular plate fixed on the end of an electric motor, so as to revolve in its own plane. The number of double oscillations was about 3000 per second.
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WATSON, C. Photograph of Oscillatory Electric Spark. Nature 68, 56 (1903). https://doi.org/10.1038/068056a0
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DOI: https://doi.org/10.1038/068056a0
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