The Heritage of Kitty HawkW.W. Norton, 1962 - 211 էջ The story of the early aviation pioneers and their accomplishments from the beginnings until World War 1. |
From inside the book
Արդյունքներ 19–ի 1-ից 3-ը:
Էջ 19
... force of magnetism , or some kind of force which pushes the bird from the earth - just the reverse of the load- stone . He then has only to use his wings to propel the body , for the magnetic earth - force does the lifting , and that is ...
... force of magnetism , or some kind of force which pushes the bird from the earth - just the reverse of the load- stone . He then has only to use his wings to propel the body , for the magnetic earth - force does the lifting , and that is ...
Էջ 61
... forces tending to disturb the equilibrium . Since balancing was effected by adjust- ments of the surfaces , instead of by movements of weight , the con- trolling forces increased in power in the same ratio as the disturbing forces ...
... forces tending to disturb the equilibrium . Since balancing was effected by adjust- ments of the surfaces , instead of by movements of weight , the con- trolling forces increased in power in the same ratio as the disturbing forces ...
Էջ 136
... operations against the beleaguered government forces led by Huerta . The bombs were little more than pieces of pipe , filled with gunpowder and plugged at both ends , but even so the dispatches reporting the action told of some loss of ...
... operations against the beleaguered government forces led by Huerta . The bombs were little more than pieces of pipe , filled with gunpowder and plugged at both ends , but even so the dispatches reporting the action told of some loss of ...
Բովանդակություն
The Dreamers | 15 |
The Early Experimenters | 21 |
The Bird Men | 29 |
Հեղինակային իրավունք | |
14 այլ բաժինները չեն ցուցադրվում
Common terms and phrases
aerial Aero aeronautical ailerons aircraft airplane American Army attempt aviation became become beginning biplane bird Bleriot boat British brothers build built called carried Century Chapter close Company construction continued Curtiss cylinders distance early effort engine experimenters experiments fact feet Finally flew flight flown flying flying machine forces forward four France French fuselage gear German Glenn glider ground hour improvement interest Italy kites known landing Langley later launching learned least less Lilienthal machine manufacturer Martin measured miles military minutes monoplane observed operated Orville performance perhaps period pilot pioneers plane possible pounds practice problem produced propeller pusher reported rudder showed Smithsonian Institution soon span speed stability successful surface tail tion turned United Voisin wheels Wilbur wind wings World Wright Wright brothers