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réf. DADAX16195483642018-11-20. 2018. paperback. New. 8.50x1.00x10.50. Buy with confidence. Excellent Customer Service & Return policy. paperback
1805réf. 44123Halle Rengerschen Buchhandlung 1805. Without wrappers. In "Annalen der Physik. Herausgegeben von Ludwig Wilhelm Gilbert" Bd. 20 Fünftes Stück. The entire issue offered. Titlepage to vol. 20. Pp. 1-128. Biot's paper: pp. 1-18. - Gay-Lussac: pp. 19-37 - Humboldt & Gay-Lussac: pp. 38-92. - Sacharow: pp. 107-124. These 4 accounts of the earliest scientific ascents with balloons had the same purposes namely to make observations on the composition of the air pressure and the earth's magnetic force. Brockett "Bibliography of Aeronautics" Nos 1856 a 6303 a a. 10654 a. unknown
1891réf. 49066Paris Gauthier-Villars 1891. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences" Tome 113 No 2. Pp. 49- 104 entire issue offered. Langley's paper: pp. 59-63. Disbound but clean. Tear to one margin not affecting the text. First appearnce of this pioneering paper in which Langley announced that it is possible with the motors that we now have to keep a plane in the air with large speed.In 1891 Langley experimented with steam-engine powered Aerodromes beginning the series which would lead to the human-carrying machine of 1903. The first of these was designated Aerodrome No. 0 and proved a failure. The second machine Aerodrome No. 1 was powered by a carbonic acid gas and later by compressed air. Aerodrome No. 2 also built in 1891 was also a disappointment. Aerodrome No. 3 1892 was of stronger construction and was modified a number of times. A better means of heating the steam was tested on Aerodrome No. 3 and was a decided improvement and was incorporated into Aerodrome No. 4. By the end of 1893 Aerodrome No. 4 was ready for testing and a launching device atop a house boat was built. unknown
réf. GRP86042293National Academies Press. Used - Good. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good. National Academies Press unknown
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réf. DADAX1560273844Brand: Aviation Supplies n Academics 0000-00-00. AC 00-45F Revised Oct. 2007. paperback. New. 8.25x0.50x10.75. Buy with confidence. Excellent Customer Service & Return policy. Brand: Aviation Supplies n Academics paperback
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