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 33
... Solar System shows very clearly the emptiness of space , and the difficulty of representing on the same scale both the sizes of the planets and the distances between them . If we reduced the Earth to the size of a table - tennis ball ...
... Solar System shows very clearly the emptiness of space , and the difficulty of representing on the same scale both the sizes of the planets and the distances between them . If we reduced the Earth to the size of a table - tennis ball ...
Pagina 173
... Solar System . In Chapter 16 we will discuss the probable existence of other planetary systems around other stars , but as far as our present definite knowledge goes , the only possible abodes of life in the universe are the worlds we ...
... Solar System . In Chapter 16 we will discuss the probable existence of other planetary systems around other stars , but as far as our present definite knowledge goes , the only possible abodes of life in the universe are the worlds we ...
Pagina 202
... Solar System to be something usual , or an astronomical freak . Until quite recently , the latter opinion was generally held , because the only conditions under which anyone could imagine the Solar System forming seemed to de- mand very ...
... Solar System to be something usual , or an astronomical freak . Until quite recently , the latter opinion was generally held , because the only conditions under which anyone could imagine the Solar System forming seemed to de- mand very ...
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