The Exploration of SpacePocket Books, 1979 - 237 pagini Presents a nonscientific explanation of space exploration and a view of future life on other planets. |
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Pagina 88
... produce modest thrusts over considerable periods . This again would produce a very substantial saving of weight . As has been explained on page 79 , the ships and any objects moving with them are under conditions of zero gravity ...
... produce modest thrusts over considerable periods . This again would produce a very substantial saving of weight . As has been explained on page 79 , the ships and any objects moving with them are under conditions of zero gravity ...
Pagina 92
... produce small thrusts for long periods of time than very great thrusts for short periods . We have to use the latter to get our spaceships away from the Earth , and thus we may be forced to employ chemical rockets at this stage . But ...
... produce small thrusts for long periods of time than very great thrusts for short periods . We have to use the latter to get our spaceships away from the Earth , and thus we may be forced to employ chemical rockets at this stage . But ...
Pagina 104
... produce changes of spin and orientation , though very small ones . If it proved necessary , these could be taken care of by automatic , gyro - controlled equipment . To return to our ship falling towards the Moon . We will assume that ...
... produce changes of spin and orientation , though very small ones . If it proved necessary , these could be taken care of by automatic , gyro - controlled equipment . To return to our ship falling towards the Moon . We will assume that ...
Cuprins
Preface to the 1951 Edition | 11 |
Thirty Years Later | 15 |
The Shaping of the Dream | 21 |
Drept de autor | |
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acceleration airless already astronautics astronomers atmo atmosphere body bricks build carry certainly Chapter chemical completely conquest of space consider course crew degrees F difficult direction distance Earth energy enormous escape velocity exist exploration extremely fact Figure fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere Jerry Pournelle journey Jupiter landing large number light light-years lunar Mars and Venus Martian means Mercury meteors miles in diameter million minutes missile Moon Moon's motors never normal observed once oxygen payload perhaps planetary planets Pluto possible pounds pressure probably problem produce propellant propulsion Proxima Centauri radar radio reach reason refueling rocket power satellite Saturn scientific ship Solar System space space-flight space-station space-suits space-travel spaceship speed spin stars stations surface take-off telescope temperature thousand thrust tion trolley voyage weight weightless