Recherches Expérimentales Aérodynamiques et Donnés D’Expérience in Comptes Rendus, Tome CXIII (113), No. 2, 13 Juillet 1891, pp. 59-63
Paris: Gauthier-Villars, 1891. 1st Edition. FIRST EDITION IN ORIGINAL WRAPS OF A VERY EARLY PAPER ON AERONAUTICS. “As a result of his observations, Mr. Langley announced in 1891 that it was possible to construct machines which would give such a velocity to inclined surfaces that bodies indefinitely heavier than the..... More