The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 152
... 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 156
... station . Complete coverage of the whole Earth would be provided by three stations , revolving in the same orbit but spaced 120 degrees apart . ( Figure 18. ) The obvious orbit for this purpose would be the 24 - hour one , 22,000 miles ...
... station . Complete coverage of the whole Earth would be provided by three stations , revolving in the same orbit but spaced 120 degrees apart . ( Figure 18. ) The obvious orbit for this purpose would be the 24 - hour one , 22,000 miles ...
Pagina 159
... stations in circular orbits , which could not change their distances from the Earth without the use of power . Spaceships pulling away from the refuelling zone would , of course , have to time their ... station it would STATIONS IN SPACE 159.
... stations in circular orbits , which could not change their distances from the Earth without the use of power . Spaceships pulling away from the refuelling zone would , of course , have to time their ... station it would STATIONS IN SPACE 159.
Cuprins
THE SHAPING OF THE DREAM | 1 |
Automatic Rocket Surveying Mars | 4 |
THE EARTH AND ITS NEIGHBOURS | 9 |
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acceleration already astronautics astronomers atmosphere atomic rockets body bricks British Astronomical Association 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 gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing light light-years lunar Mars and Venus Martian means Mercury meteors 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 trolley Uranus voyage weight