Aërial Navigation: A Popular Treatise on the Growth of Air Craft and on Aëronautical MeteorologyD. Appleton, 1911 - 494 σελίδες |
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Aërial Navigation: A Popular Treatise on the Growth of Air Craft and on ... Albert Francis Zahm Περιορισμένη προεπισκόπηση - 2023 |
Aërial Navigation: A Popular Treatise on the Growth of Air Craft and on ... Albert Francis Zahm Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Συχνά εμφανιζόμενοι όροι και φράσεις
actuating aërial aërial navigation Aëro Club aëronautics aëroplane air ship aloft altitude ascend atmosphere aviation ballonet biplane bird Blériot Calais carried Clément-Bayard clouds construction cords course cubic feet Curtiss cyclone direction dirigible distance drifted earth engine experiments Farman feet in diameter feet long flew flight float flyer flying France Friedrichshafen front gas balloon glider ground Henri Giffard horizontal horse power hull hydrogen inflated inventor isobaric Joseph Montgolfier kilometers land Langley launching Lebaudy lift machine maneuvers ment meters miles an hour miles per hour military minutes monoplane Montgolfier motion motor balloon nearly o'clock observed Paris Parseval passengers Patrie pilot plane PLATE pounds practical pressure prize propeller rear record Renard resistance rise rudder sailed Santos-Dumont screw screw propeller soaring stability steam surface swift temperature tion tornado trial valve vapor velocity vertical vessel vortex voyage weather weight wind wings Zeppelin
Δημοφιλή αποσπάσματα
Σελίδα 8 - At once on the eastern cliff of Paradise He lights; and to his proper shape returns A seraph wing'd : six wings he wore, to shade His lineaments divine ; the pair that clad Each shoulder, broad, came mantling o'er his breast With regal ornament ; the middle pair Girt like a starry zone his waist, and round Skirted his loins and thighs with downy gold, And colours dipt in heaven; the third his feet Shadow'd from either heel with feather'd mail, Sky-tinctured grain.
Σελίδα 427 - Conversation produces on this subject, some suppose Flying to be now invented, and that since Men may be supported in the Air, nothing is wanted but some light handy instrument to give and direct Motion.
Σελίδα 5 - When now the boy, whose childish thoughts aspire To loftier aims, and make him ramble higher; Grown wild and wanton, more embolden'd flies Far from his guide, and soars among the skies: The softening wax, that felt a nearer sun, Dissolved apace, and soon began to run: The youth in vain his melting pinions shakes; His feathers gone, no longer air he takes.
Σελίδα 430 - It does not seem to me a good reason to decline prosecuting a new experiment which apparently increases the power of man over matter, till we can see to what use that power may be applied.
Σελίδα 424 - Ib. and the weight of the air contain'd. It was brought early in the morning to the Champ de Mars, a field in which reviews are sometimes made, lying between the Military School and the river. There it was held down by a cord, till 5 in the afternoon, when it was to be let loose.
Σελίδα 67 - I was still conscious, with as active a brain as at the present moment whilst writing this. I thought I had been seized with asphyxia, and...
Σελίδα 8 - His lineaments divine: the pair that clad Each shoulder broad came mantling o'er his breast With regal ornament; the middle pair Girt like a starry zone his waist, and round Skirted his loins and thighs with downy gold And colours dipt in heaven; the third his feet Shadowed from either heel with feathered mail, Sky - tinctured grain. Like Maia's son he stood, And shook his plumes, that heavenly fragrance filled The circuit wide.
Σελίδα 429 - Works, &c., conveying Intelligence into, or out of a besieged Town, giving Signals to distant Places, or the like. The other Method of filling a Balloon with permanently elastic inflammable Air, and then closing it is a tedious Operation, and very expensive; Yet we are to have one of that kind sent up in a few Days. It is a Globe of 26 feet diameter.
Σελίδα 4 - My boy, take care To wing your course along the middle air: If low, the surges wet your flagging plumes; If high, the sun the melting wax consumes.
Σελίδα 427 - Water to be frozen when Ice is wanted. And that to get Money, it will be contrived to give People an extensive View of the Country, by running them up in an Elbow Chair a Mile high for a Guinea &c.