The Exploration of Space |
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Pagina 44
... the escape from a planet's own gravitational field — something which has to be done in the first thousand miles or so of the voyage — than in the journey from orbit to orbit , which may cover a distance ten thousand times as great .
... the escape from a planet's own gravitational field — something which has to be done in the first thousand miles or so of the voyage — than in the journey from orbit to orbit , which may cover a distance ten thousand times as great .
Pagina 82
To take a simple case , suppose the spaceship were near the Earth and a terrestrial station were sending out a series of “ pips ” at regular intervals — say at the rate of a thousand a second . Then if the ship were travelling towards ...
To take a simple case , suppose the spaceship were near the Earth and a terrestrial station were sending out a series of “ pips ” at regular intervals — say at the rate of a thousand a second . Then if the ship were travelling towards ...
Pagina 135
Although so many thousands of them exist , they cannot constitute a " menace to navigation ” , as has sometimes been suggested . The gulf between Mars and Jupiter is too enormous for a few thousand , or even a few million , asteroids to ...
Although so many thousands of them exist , they cannot constitute a " menace to navigation ” , as has sometimes been suggested . The gulf between Mars and Jupiter is too enormous for a few thousand , or even a few million , asteroids to ...
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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 |