The Exploration of Space |
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Pagina 45
It is much the same with the spaceship — with the important difference that whereas the shell acquires its velocity in a few feet under an enormous acceleration , the spaceship has thousands of miles in which to build up speed at a rate ...
It is much the same with the spaceship — with the important difference that whereas the shell acquires its velocity in a few feet under an enormous acceleration , the spaceship has thousands of miles in which to build up speed at a rate ...
Pagina 77
The ship may build up speed at once to lunar escape velocity ( 5,200 m.p.h. ) , which , it will be remembered , could be reached in four minutes under only one gravity . It would then travel back to Earth along an orbit similar to that ...
The ship may build up speed at once to lunar escape velocity ( 5,200 m.p.h. ) , which , it will be remembered , could be reached in four minutes under only one gravity . It would then travel back to Earth along an orbit similar to that ...
Pagina 83
We have already pointed out , on page 73 , that the actual orientation or attitude of a spaceship has nothing to do with its direction of motion : it could be spinning or pointing in space in any manner without affecting its velocity .
We have already pointed out , on page 73 , that the actual orientation or attitude of a spaceship has nothing to do with its direction of motion : it could be spinning or pointing in space in any manner without affecting its velocity .
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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 |