The Exploration of Space |
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Pagina 35
Many are already known , in fact , but we cannot yet build the motors to harness them safely . It is obvious , therefore , that exhaust speeds and hence rocket speeds will continue to increase . However , there is a definite limit to ...
Many are already known , in fact , but we cannot yet build the motors to harness them safely . It is obvious , therefore , that exhaust speeds and hence rocket speeds will continue to increase . However , there is a definite limit to ...
Pagina 67
Several chemicals are known which can perform this feat ( e.g. sodium hydroxide and sodium peroxide ) , and the latter will not only remove the carbon dioxide but will replace it with fresh oxygen . In addition , supplies of pure oxygen ...
Several chemicals are known which can perform this feat ( e.g. sodium hydroxide and sodium peroxide ) , and the latter will not only remove the carbon dioxide but will replace it with fresh oxygen . In addition , supplies of pure oxygen ...
Pagina 175
A beam of such particles would act as a rocket jet and could produce a thrust — indeed , there is a well - known laboratory experiment to demonstrate this . With ordinary currents and powers the thrust is negligible , but there is no ...
A beam of such particles would act as a rocket jet and could produce a thrust — indeed , there is a well - known laboratory experiment to demonstrate this . With ordinary currents and powers the thrust is negligible , but there is no ...
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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 |