The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 142
... present in very large quantities on Mars and Venus , though in each case combined with other elements , the provision of a breath- able atmosphere is a problem of chemical engineering which is , in principle , capable of a solution . As ...
... present in very large quantities on Mars and Venus , though in each case combined with other elements , the provision of a breath- able atmosphere is a problem of chemical engineering which is , in principle , capable of a solution . As ...
Pagina 193
... present on , 133 moons , 10 , 122 , 131 , 133 , 134 , 146 orbit , 12 radio noise , 122 rotation , 119 , 133 size , 118 surface , 133 temperatures , 133 travel to , 135 Kepler , Johannes , Somnium , 3 Krafft Ehricke , 155 Laika , 88 Ley ...
... present on , 133 moons , 10 , 122 , 131 , 133 , 134 , 146 orbit , 12 radio noise , 122 rotation , 119 , 133 size , 118 surface , 133 temperatures , 133 travel to , 135 Kepler , Johannes , Somnium , 3 Krafft Ehricke , 155 Laika , 88 Ley ...
Pagina 194
... present on , 131 moons , 122 orbit , 12 revolutions , 11 rotation period , 119 size , 118 , 130 surface , 130-131 travel to , 55-56 temperatures , 130 vegetation , 131 Meteors , 14 , 86 , 88-89 , 106 , 119 , 137 , 173 core of comets ...
... present on , 131 moons , 122 orbit , 12 revolutions , 11 rotation period , 119 size , 118 , 130 surface , 130-131 travel to , 55-56 temperatures , 130 vegetation , 131 Meteors , 14 , 86 , 88-89 , 106 , 119 , 137 , 173 core of comets ...
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