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 |
THE EARTH AND ITS NEIGHBOURS | 9 |
THE ROCKET | 17 |
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able acceleration actual already appear astronautics astronomers atmosphere atomic become body build carry certainly Chapter close completely consider considerable course deal developed difficult direction discovered discuss distance Earth effect energy escape exist exploration extremely fact fall field Figure fuel give given gravity greater heat human hundred idea imagine important impossible increase interesting interplanetary involved journey known landing least less light limit live look lunar Mars material matter means miles minutes Moon motors necessary never observed once orbit oxygen perhaps period planets Plate possible practical present pressure probably problem produce purely radio reach reason relatively remain rocket round satellite scientific seems seen ship shown simple Solar space spaceship speed stars stations structure surface telescope temperature thousand Universe velocity Venus weight whole