The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 109
... exist on the Moon , though doubtless in different mineral forms . To the question " Is there life on the Moon ? " astronomers until quite recently would have returned an unequivocal “ No ” , pointing out that the lack of air and the ...
... exist on the Moon , though doubtless in different mineral forms . To the question " Is there life on the Moon ? " astronomers until quite recently would have returned an unequivocal “ No ” , pointing out that the lack of air and the ...
Pagina 129
... exist . The low pressure and the scarcity of water are obstacles which could be overcome by the techniques of biolo- gical engineering which Nature has already developed here . Nor is the temperature of Mars so low , despite its greater ...
... exist . The low pressure and the scarcity of water are obstacles which could be overcome by the techniques of biolo- gical engineering which Nature has already developed here . Nor is the temperature of Mars so low , despite its greater ...
Pagina 141
... exist even on the frozen outer worlds . One can imagine beings with tough , insulating skins through which the heat loss would be very small . As long as they had some source of energy - chemical , solar , perhaps even nuclear - and the ...
... exist even on the frozen outer worlds . One can imagine beings with tough , insulating skins through which the heat loss would be very small . As long as they had some source of energy - chemical , solar , perhaps even nuclear - and the ...
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