The Exploration of Space |
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Pagina 33
We can sum up these results , then , as follows : a body projected away from the Earth will escape from it completely if its speed is over 25,000 m.p.h. If its speed is less than this , it may either fall back again or , if it is aimed ...
We can sum up these results , then , as follows : a body projected away from the Earth will escape from it completely if its speed is over 25,000 m.p.h. If its speed is less than this , it may either fall back again or , if it is aimed ...
Pagina 34
The only practicable way of escaping from the Earth is to build up escape velocity as quickly as possibleand then to cut the rockets and “ coast ” . A commonplace but accurate analogy is given by the cyclist who builds up enough speed ...
The only practicable way of escaping from the Earth is to build up escape velocity as quickly as possibleand then to cut the rockets and “ coast ” . A commonplace but accurate analogy is given by the cyclist who builds up enough speed ...
Pagina 196
... 17-18 Godwin , Bishop Man in the Moone , 3-4 Gravity ( see also Acceleration , Weightlessness ) artificial , 99 effect of distance , 15 neutralising , 7 on Moon , 107 problem of escape from , 30-1 > Heaviside Layer , see lonosphere ...
... 17-18 Godwin , Bishop Man in the Moone , 3-4 Gravity ( see also Acceleration , Weightlessness ) artificial , 99 effect of distance , 15 neutralising , 7 on Moon , 107 problem of escape from , 30-1 > Heaviside Layer , see lonosphere ...
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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 |