The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 71
... give a lower acceleration , in order to make it easier to make the final velocity adjustments . The whole maneuver would be carried out according to a pre- arranged program , in order to put the ship into an orbit that had been ...
... give a lower acceleration , in order to make it easier to make the final velocity adjustments . The whole maneuver would be carried out according to a pre- arranged program , in order to put the ship into an orbit that had been ...
Pagina 96
... give any assistance . This is because vision alone is quite sufficient to give us a " reference system " without the aid of any other organs . It therefore seems likely that the condition of weightlessness , though it may take some time ...
... give any assistance . This is because vision alone is quite sufficient to give us a " reference system " without the aid of any other organs . It therefore seems likely that the condition of weightlessness , though it may take some time ...
Pagina 150
... give the over - all picture almost literally at a glance . An orbital satellite ( even one carrying no men or instruments ) would also be invaluable as aid to navigation , provided that it was bright enough to be observed visually from ...
... give the over - all picture almost literally at a glance . An orbital satellite ( even one carrying no men or instruments ) would also be invaluable as aid to navigation , provided that it was bright enough to be observed visually from ...
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