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Scientific American, Vol. 54, No. 9 (1886) (1886)
leaf 4
d a working model, when Messrs. Gaulard states that in his opin- & Gibbs, taking up the ion the air resistance question from a practi- will be reduced ten per eal point of view, per- cent by the use of the formed some experi- propeller at the head of ments at London and the shell. Turin, in 1883… … (Fig. 1) now appear in mination. than when se- I, variable, the form of vertical cured to the horse’s columns composed of collar. © 1886 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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