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 61
... never cross the At- lantic - the coal consumption would be far too great . A century later , the birth of flight was ... never carry the weight of a passenger as well as a pilot ! ) The lesson of this is that it is never safe to make ...
... never cross the At- lantic - the coal consumption would be far too great . A century later , the birth of flight was ... never carry the weight of a passenger as well as a pilot ! ) The lesson of this is that it is never safe to make ...
Pagina 87
... never lands on any planet . Its function is to travel from an orbit round the Earth to an orbit round the Moon , Mars , or any other world , carrying personnel , fuel and stores . At its destina- tion it would be met by a Type A or B ...
... never lands on any planet . Its function is to travel from an orbit round the Earth to an orbit round the Moon , Mars , or any other world , carrying personnel , fuel and stores . At its destina- tion it would be met by a Type A or B ...
Pagina 231
... never have an end . Somewhere on that journey we may at last learn what purpose , if any , life plays in the Universe of mat- ter : certainly we can never learn it on this Earth alone . Among the stars lies the proper study of mankind ...
... never have an end . Somewhere on that journey we may at last learn what purpose , if any , life plays in the Universe of mat- ter : certainly we can never learn it on this Earth alone . Among the stars lies the proper study of mankind ...
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