The Exploration of Space |
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Pagina 41
Now the Moon has , of course , its own gravitational field , which may be regarded as a , much smaller version of the Earth's . Returning to our analogy on page 31 , it is as though some distance away from the 4,000miles - deep pit at ...
Now the Moon has , of course , its own gravitational field , which may be regarded as a , much smaller version of the Earth's . Returning to our analogy on page 31 , it is as though some distance away from the 4,000miles - deep pit at ...
Pagina 44
The changes in speed provide the energy needed to move up and down the “ slope ” of the Sun's gravitational field . It is extremely fortunate for astronautics that , at the distances of the planets from the Sun , the “ slope ” of this ...
The changes in speed provide the energy needed to move up and down the “ slope ” of the Sun's gravitational field . It is extremely fortunate for astronautics that , at the distances of the planets from the Sun , the “ slope ” of this ...
Pagina 179
There is nothing inherently absurd about this idea : in fact , a gravitational field produces precisely this effect . If one were falling freely towards Jupiter , not far outside the planet's atmosphere , one would be accelerating at 21 ...
There is nothing inherently absurd about this idea : in fact , a gravitational field produces precisely this effect . If one were falling freely towards Jupiter , not far outside the planet's atmosphere , one would be accelerating at 21 ...
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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 |