The Exploration of Space |
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Pagina 45
The orbits shown in Figure 10 are , however , by no means the only paths that would take us from Earth to Mars and Venus : they are merely the most economical ones . Faster and more direct routes are conceivable , but they would require ...
The orbits shown in Figure 10 are , however , by no means the only paths that would take us from Earth to Mars and Venus : they are merely the most economical ones . Faster and more direct routes are conceivable , but they would require ...
Pagina 81
EARTH SUN SHIP B VENUS would have an almanac or " ephemeris ” containing tables which gave the positions of the planets at any time , and Figure 13 shows how he could use this to locate his ship . ( For simplicity , we will assume that ...
EARTH SUN SHIP B VENUS would have an almanac or " ephemeris ” containing tables which gave the positions of the planets at any time , and Figure 13 shows how he could use this to locate his ship . ( For simplicity , we will assume that ...
Pagina 121
But let us look first at the planets , considering them in the order , as far as can be foreseen today , in which they will be visited . As we have already seen , there is little to choose between Mars and Venus in this respect .
But let us look first at the planets , considering them in the order , as far as can be foreseen today , in which they will be visited . As we have already seen , there is little to choose between Mars and Venus in this respect .
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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
Informații bibliografice
| Titlu | The Exploration of Space |
| Autor | Arthur Charles Clarke |
| Editor | Temple Press, 1951 |
| Exemplar original de la | Universitatea din Michigan |
| Scanată la | 14 Dec 2007 |
| Lungime | 198 pagini |
| Exportă citatul | BiBTeX EndNote RefMan |