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 162
... exist , can obtain the oxygen they need from the soil rather than from the atmosphere . It should be remembered that the other basic raw materials for plant life are carbon dioxide , water and sunlight , all of which are certainly ...
... exist , can obtain the oxygen they need from the soil rather than from the atmosphere . It should be remembered that the other basic raw materials for plant life are carbon dioxide , water and sunlight , all of which are certainly ...
Pagina 169
... exist , they cannot constitute a " menace to navigation , " as has sometimes been suggested . The gulf between Mars and Jupiter is too enormous for a few thousand , or even a few million , asteroids to go very far towards filling it ...
... exist , they cannot constitute a " menace to navigation , " as has sometimes been suggested . The gulf between Mars and Jupiter is too enormous for a few thousand , or even a few million , asteroids to go very far towards filling it ...
Pagina 175
... exist even on the frozen outer worlds . One can imagine beings with tough , insulating skins through which the heat loss would be very small . As long as they had some source of energy - chemical , solar , per- haps even nuclear - and ...
... exist even on the frozen outer worlds . One can imagine beings with tough , insulating skins through which the heat loss would be very small . As long as they had some source of energy - chemical , solar , per- haps even nuclear - 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