The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 113
... possible by such conditions as low gravity and airlessness . The same arguments will apply , with minor modifications , to the case of the Moon . We have already mentioned the quest for oxygen and water , and there is every reason to ...
... possible by such conditions as low gravity and airlessness . The same arguments will apply , with minor modifications , to the case of the Moon . We have already mentioned the quest for oxygen and water , and there is every reason to ...
Pagina 114
... possible ( though not the best ) propellant for atomic rockets . Electrolyzed to provide hydrogen and oxygen , it could drive con- ventional , chemical rockets . Once it became possible to refuel on the Moon , the whole picture would ...
... possible ( though not the best ) propellant for atomic rockets . Electrolyzed to provide hydrogen and oxygen , it could drive con- ventional , chemical rockets . Once it became possible to refuel on the Moon , the whole picture would ...
Pagina 156
... possible . Some stations might be in the shape of flat disks , slowly spinning so that there would appear to be normal gravity at the rim . At the axis there would be no gravity at all , so in the one station it would be possible for ...
... possible . Some stations might be in the shape of flat disks , slowly spinning so that there would appear to be normal gravity at the rim . At the axis there would be no gravity at all , so in the one station it would be possible for ...
Cuprins
The Shaping of the Dream | 1 |
Navigation and Communication in Space | 78 |
1 | 118 |
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acceleration airless asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical completely course crew diameter difficult distance Earth energy engineering enormous escape velocity exploration extremely fact Figure free orbit fuel Galaxy gases gravitational field gravity heat hundred hydrogen imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing LEWIS CARROLL light light-years lunar Mars and Venus Martian means Mercury meteors miles million minutes missiles Moon Moon's motors never normal observed orbit oxygen payload perhaps planetary Plate Pluto possible pounds pressure probably problem produce propellant propulsion Proxima Centauri R. A. Smith radar radiation radio reach reason refueling rocket power satellite Saturn scientific ship Solar System space space-flight space-stations space-suits space-travel spaceship speed spinning stars stations structure sunlight surface take-off tanks telescope temperature thousand thrust trolley Uranus vehicle voyage weight weightless