The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 46
... able to increase rocket performances very greatly by the use of chemical fuels , there are reasons for believing that , in time , we will be able to harness atomic energy for rocket pro- pulsion . This would certainly solve our ...
... able to increase rocket performances very greatly by the use of chemical fuels , there are reasons for believing that , in time , we will be able to harness atomic energy for rocket pro- pulsion . This would certainly solve our ...
Pagina 97
... able to do this sort of thing , but for a long time to come it will remain pure fantasy . The other , and practical , solution involves the use of centrifugal force . Consider a spaceship of circular cross section [ Figure 16 ( a ) ...
... able to do this sort of thing , but for a long time to come it will remain pure fantasy . The other , and practical , solution involves the use of centrifugal force . Consider a spaceship of circular cross section [ Figure 16 ( a ) ...
Pagina 150
... able to observe it from both sides . Since a space - station a few thousand miles up would be able to survey the greater part of the planet in a couple of hours , watching all cloud formations and the movement of storm centers , it ...
... able to observe it from both sides . Since a space - station a few thousand miles up would be able to survey the greater part of the planet in a couple of hours , watching all cloud formations and the movement of storm centers , it ...
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