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 65
... problem of retrieving the film will not arise . These pictorial records , although spectacular and exciting ( and also of some meteorological interest ) , are much less important than the information obtained by the instruments carried ...
... problem of retrieving the film will not arise . These pictorial records , although spectacular and exciting ( and also of some meteorological interest ) , are much less important than the information obtained by the instruments carried ...
Pagina 91
... problem is getting the heat out of the pile quickly enough to prevent it melting - and then to trans- fer this heat to the propellant . That is the purely engineering problem , and it is an exceedingly difficult one . But there is also ...
... problem is getting the heat out of the pile quickly enough to prevent it melting - and then to trans- fer this heat to the propellant . That is the purely engineering problem , and it is an exceedingly difficult one . But there is also ...
Pagina 180
... problem is a " marginal " one . There is little doubt that aircraft could function in the Martian atmosphere , despite its thinness . The fact that gravity has only a third of its terrestrial value would be a great help to flying , and ...
... problem is a " marginal " one . There is little doubt that aircraft could function in the Martian atmosphere , despite its thinness . The fact that gravity has only a third of its terrestrial value would be a great help to flying , and ...
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