The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 12
... discuss in Chapter 4. Mercury is moving in its orbit at 107,000 m.p.h. , the Earth at a more modest 68,000 and Pluto at a mere 10,000 m.p.h. The second important point is that almost all the planets lie in or very near the same plane ...
... discuss in Chapter 4. Mercury is moving in its orbit at 107,000 m.p.h. , the Earth at a more modest 68,000 and Pluto at a mere 10,000 m.p.h. The second important point is that almost all the planets lie in or very near the same plane ...
Pagina 48
... discuss this procedure at any more length , however , it may be as well to look at the basic problems involved in the building of spaceships for simpler missions , such as entry into a circular orbit around the Earth . Once we have ...
... discuss this procedure at any more length , however , it may be as well to look at the basic problems involved in the building of spaceships for simpler missions , such as entry into a circular orbit around the Earth . Once we have ...
Pagina 111
... discuss , in general terms , the problem of making it habitable . Some of the suggestions put forward in this chapter may well seem fantastic even to those whose imaginations have not been strained by what has gone before . Yet if we ...
... discuss , in general terms , the problem of making it habitable . Some of the suggestions put forward in this chapter may well seem fantastic even to those whose imaginations have not been strained by what has gone before . Yet if we ...
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