The Exploration of Space |
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Pagina 76
What sort of “ undercarriage " our lunar spaceship would need is an 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 ...
What sort of “ undercarriage " our lunar spaceship would need is an 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 ...
Pagina 107
Another fairly common lunar formation is the “ rill ” or “ cleft ” , of which several examples will be seen in Plate VII . ? Some of these fissures are of great size and would be impressive , if not indeed terrifying , spectacles to an ...
Another fairly common lunar formation is the “ rill ” or “ cleft ” , of which several examples will be seen in Plate VII . ? Some of these fissures are of great size and would be impressive , if not indeed terrifying , spectacles to an ...
Pagina 108
Owing to the weakness of the lunar gravity , if there were an atmosphere on the Moon its density would fall off with altitude much more slowly than does the Earth's . If Figure 2 were redrawn for the case of the Moon , the density lines ...
Owing to the weakness of the lunar gravity , if there were an atmosphere on the Moon its density would fall off with altitude much more slowly than does the Earth's . If Figure 2 were redrawn for the case of the Moon , the density lines ...
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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 moving 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 seems seen ship shown simple Solar space spaceship speed stars stations structure surface telescope temperature thousand Universe velocity Venus weight whole