The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 147
... space - station may be the first task of astronautics , antedating even the journey to the Moon . If one uses the word " space- station " to describe any artificial structure in a stable orbit , then one can argue that Sputnik I was the ...
... space - station may be the first task of astronautics , antedating even the journey to the Moon . If one uses the word " space- station " to describe any artificial structure in a stable orbit , then one can argue that Sputnik I was the ...
Pagina 149
... space clearly involves engineering problems of no mean order . Some of these will be considered on page 155 , when we will discuss the actual construction of space - stations . From the point of view of scientific research , it is ...
... space clearly involves engineering problems of no mean order . Some of these will be considered on page 155 , when we will discuss the actual construction of space - stations . From the point of view of scientific research , it is ...
Pagina 151
... space . We have seen that even the use of chemically fueled rockets need not sub- ject passengers to abnormally high or dangerous accelerations , so there is no reason why invalids should not travel in spaceships almost as safely as ...
... space . We have seen that even the use of chemically fueled rockets need not sub- ject passengers to abnormally high or dangerous accelerations , so there is no reason why invalids should not travel in spaceships almost as safely as ...
Cuprins
The Shaping of the Dream | 1 |
Navigation and Communication in Space | 78 |
1 | 118 |
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acceleration airless asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical completely course crew diameter difficult distance Earth energy engineering enormous escape velocity exploration extremely fact Figure free orbit fuel Galaxy gases gravitational field gravity heat hundred hydrogen imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing LEWIS CARROLL light light-years lunar Mars and Venus Martian means Mercury meteors miles million minutes missiles Moon Moon's motors never normal observed orbit oxygen payload perhaps planetary Plate Pluto possible pounds pressure probably problem produce propellant propulsion Proxima Centauri R. A. Smith radar radiation radio reach reason refueling rocket power satellite Saturn scientific ship Solar System space space-flight space-stations space-suits space-travel spaceship speed spinning stars stations structure sunlight surface take-off tanks telescope temperature thousand thrust trolley Uranus vehicle voyage weight weightless