The Exploration of Space |
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Pagina 125
Because of its distance , an observer of Mars , using a large telescope under conditions of good seeing , is in much the position as someone looking at the Moon with the naked at the best , with a pair of weak opera - glasses .
Because of its distance , an observer of Mars , using a large telescope under conditions of good seeing , is in much the position as someone looking at the Moon with the naked at the best , with a pair of weak opera - glasses .
Pagina 153
6 a In the weightless condition which always applies to a body in free orbit , the telescope structure need have only enough strength to maintain its stiffness . Indeed , the optical elements might be miles apart , if need be , with no ...
6 a In the weightless condition which always applies to a body in free orbit , the telescope structure need have only enough strength to maintain its stiffness . Indeed , the optical elements might be miles apart , if need be , with no ...
Pagina 164
There are also suns of almost every possible intermediate colour - gold , blue , green , topaz , emerald — so that in the telescope some of the great star clusters look like collections of jewels glittering against the blackness of ...
There are also suns of almost every possible intermediate colour - gold , blue , green , topaz , emerald — so that in the telescope some of the great star clusters look like collections of jewels glittering against the blackness of ...
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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 |