The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 76
... interesting problem which cannot , perhaps , be completely solved until we know a good deal more about the surface of the Moon . By the time a landing is attempted we will certainly have large - scale photographs of the lunar plains and ...
... interesting problem which cannot , perhaps , be completely solved until we know a good deal more about the surface of the Moon . By the time a landing is attempted we will certainly have large - scale photographs of the lunar plains and ...
Pagina 98
... interesting and perhaps significant fact that people who for some reason are deprived of the use of these organs do not seem to suffer ill effects . They can also orientate them- selves correctly even under water , when there is no ...
... interesting and perhaps significant fact that people who for some reason are deprived of the use of these organs do not seem to suffer ill effects . They can also orientate them- selves correctly even under water , when there is no ...
Pagina 141
... interesting . After all , interplanetary travel would lose much of its point if the other planets were simply new editions of Earth ! It is well to remember that there are only three worlds in the Universe whose surfaces we can observe ...
... interesting . After all , interplanetary travel would lose much of its point if the other planets were simply new editions of Earth ! It is well to remember that there are only three worlds in the Universe whose surfaces we can observe ...
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