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Scientific American, Vol. 55, No. 22 (1886) (1886)
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ts rotation about its own axis, so that the so applied was insufficient to accelerate the gyratory the performance of some of these modified forms. wheel descended in a spiral course; and the electric motion. Probably it was not more than enough to Some years since, the writer described, in these… … © 1886 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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