The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 51
Arthur Charles Clarke. alone . So perhaps a better phrase than " free fall ” is “ free orbit . ” In this state , which would begin at the moment the rockets were turned off , the ship and its occupants would have no weight what- soever ...
Arthur Charles Clarke. alone . So perhaps a better phrase than " free fall ” is “ free orbit . ” In this state , which would begin at the moment the rockets were turned off , the ship and its occupants would have no weight what- soever ...
Pagina 59
... free orbit . As exactly similar problems will be considered when we discuss the building of " space - stations ... orbit , so that they can break away from the Earth , make a reconnais- sance of the Moon , and return to the Earth orbit ...
... free orbit . As exactly similar problems will be considered when we discuss the building of " space - stations ... orbit , so that they can break away from the Earth , make a reconnais- sance of the Moon , and return to the Earth orbit ...
Pagina 60
... orbiting mother ship , would be left behind , still in free orbit , for the use of future expeditions . At this stage , the first era of interplanetary flight would be ended . Thereafter the problem would be one of improving the ef ...
... orbiting mother ship , would be left behind , still in free orbit , for the use of future expeditions . At this stage , the first era of interplanetary flight would be ended . Thereafter the problem would be one of improving the ef ...
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