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Scientific American, Vol. 74, No. 10 (1896) (1896)
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ined surface till he has accustomed himself ed; these have now been defined to such an extent OF HUMAN FLIGHT. to be borne by the air. Finally he is able to sail over that the different phases of flight ean be treated inclined surfaces as far as he wishes. The supporting BY OTTO LILIENTHAL.… … Fig. 1. Fig. 4. © 1896 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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