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 105
... lunar spaceship would need is an interesting problem which cannot , per- haps , be completely solved until we know a good deal more about the surface of the Moon . By the time a landing is attempted we will certainly have large - scale ...
... lunar spaceship would need is an interesting problem which cannot , per- haps , be completely solved until we know a good deal more about the surface of the Moon . By the time a landing is attempted we will certainly have large - scale ...
Pagina 138
... lunar surface is covered with a layer of dust ( perhaps of meteoric origin ) about a millimeter thick . Some astronomers , before these measurements were available , had advanced the theory that " dust oceans " hundreds of feet , or ...
... lunar surface is covered with a layer of dust ( perhaps of meteoric origin ) about a millimeter thick . Some astronomers , before these measurements were available , had advanced the theory that " dust oceans " hundreds of feet , or ...
Pagina 141
... lunar rocks . Deep inside the Moon , there would be no trace of them at all and the temperature would be constant at about -30 degrees F. We have no information at all about the Moon's chemical composition : its density is considerably ...
... lunar rocks . Deep inside the Moon , there would be no trace of them at all and the temperature would be constant at about -30 degrees F. We have no information at all about the Moon's chemical composition : its density is considerably ...
Cuprins
Preface to the 1951 Edition | 11 |
Thirty Years Later | 15 |
The Shaping of the Dream | 21 |
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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