The Exploration of SpaceHarper, 1951 - 199 pagini |
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Pagina 149
... stations " for rock- ets might well become of secondary importance . Indeed , there is probably no need to use space - stations at all for this purpose , at least in the earlier stages of interplanetary flight , since the first ...
... stations " for rock- ets might well become of secondary importance . Indeed , there is probably no need to use space - stations at all for this purpose , at least in the earlier stages of interplanetary flight , since the first ...
Pagina 150
... station , but others demand such varying types of orbit that specialised stations would eventually have to be built , devoted to a single purpose . Thus the refuelling stations would be as near the Earth as possible ( perhaps only five ...
... station , but others demand such varying types of orbit that specialised stations would eventually have to be built , devoted to a single purpose . Thus the refuelling stations would be as near the Earth as possible ( perhaps only five ...
Pagina 160
... station a few miles away , transferring from one to the other by low - powered rockets . Over the years and centuries the stations would grow by a process of accretion as new chambers and laboratories were built , until they might ...
... station a few miles away , transferring from one to the other by low - powered rockets . Over the years and centuries the stations would grow by a process of accretion as new chambers and laboratories were built , until they might ...
Cuprins
The Shaping of the Dream | 1 |
The Earth and Its Neighbours | 7 |
The Rocket | 17 |
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Termeni și expresii frecvente
acceleration already asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical completely course crew degrees F difficult direction distance Earth energy enormous escape velocity exploration extremely fact Figure free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing light light-years lunar Mare Imbrium Mars and Venus Martian means Mercury meteors million minutes missile Moon Moon's motors never observed oxygen payload perhaps planetary planets Pluto possible pounds pressure pressurised probably problem produce propellant propulsion Proxima Centauri R. A. Smith radar radiation radio reach reason refuelling return to Earth rocket power satellite Saturn scientific ship Solar System space space-flight space-station space-suits space-travel spaceship speed spinning stars stations surface take-off telescope temperature terrestrial thousand thrust tion trolley Uranus voyage weight