Airships past and present, together with chapters on the use of balloons in connection with meteorology, photography and the carrier pigeon (1908)
Hildebrandt, A. (Alfred), b. 1870, Story, W. H. tr · New York, D. Van Nostrand company · leaf 26
Fig. 3, -The flying ship, designed by-Francisco de Lana. THE EAELY HISTORY OF THE ART. 5 which the one may be called aerostatics, and the otheraerodynamics. Aerostatical devices include those in which theload is lifted by filling certain spaces with a gas which is lighterthan air, whereas in… … Fig. 4.—Photograph of Augsburg, showing the cathedral. Taken from aballoon by A. Biedinger. Laurenzo de Gusmann constructed an airship in Lisbon in theyear 1685 out of a wooden basket covered with paper, and if thefacts were true, he would seem to have been the first to work onaerostatical…
Aeronautics
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