The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 31
... involved in climbing to any given height can be easily calculated , and obviously a rocket which is designed to reach this altitude must carry enough fuel to provide the necessary work . Nature never gives us something for nothing : in ...
... involved in climbing to any given height can be easily calculated , and obviously a rocket which is designed to reach this altitude must carry enough fuel to provide the necessary work . Nature never gives us something for nothing : in ...
Pagina 109
... the problems involved in lunar exploration and colonization will be found in The Exploration of the Moon by R. A. Smith and Arthur C. Clarke ( Harper ) . space - suits . These have been described in fiction 109 11 The Lunar Base.
... the problems involved in lunar exploration and colonization will be found in The Exploration of the Moon by R. A. Smith and Arthur C. Clarke ( Harper ) . space - suits . These have been described in fiction 109 11 The Lunar Base.
Pagina 113
... involved would be considerable . It would simplify matters greatly if water could be found in the free ( frozen ) state , and as has been pointed out it is quite possible that it may occur in caves , or on the surface in temporary ...
... involved would be considerable . It would simplify matters greatly if water could be found in the free ( frozen ) state , and as has been pointed out it is quite possible that it may occur in caves , or on the surface in temporary ...
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