The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 66
... simple and effective method is to pass the air through a chilled pipe and con- dense the water out of it . On very long voyages , the chemicals needed for oxygen replenish- ment would weigh a considerable amount , and it has been seri ...
... simple and effective method is to pass the air through a chilled pipe and con- dense the water out of it . On very long voyages , the chemicals needed for oxygen replenish- ment would weigh a considerable amount , and it has been seri ...
Pagina 79
... simple geometry fixes the spaceship's position at X. Since there would seldom be less than three , and would often be five , bright planets available for observation this is clearly a very useful method , as well as an extremely simple ...
... simple geometry fixes the spaceship's position at X. Since there would seldom be less than three , and would often be five , bright planets available for observation this is clearly a very useful method , as well as an extremely simple ...
Pagina 98
... Simple though this solution appears to be in principle , it does raise a number of problems . The psychological effects of seeing the people on the opposite wall standing " upside down " might be unfortunate , though one could probably ...
... Simple though this solution appears to be in principle , it does raise a number of problems . The psychological effects of seeing the people on the opposite wall standing " upside down " might be unfortunate , though one could probably ...
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