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 38
... surface on the way into space and -much more important - it offers a means of making a safe landing on the return . This thin blanket of air , without which life as we know it would be impossible , is held tightly to the Earth by the ...
... surface on the way into space and -much more important - it offers a means of making a safe landing on the return . This thin blanket of air , without which life as we know it would be impossible , is held tightly to the Earth by the ...
Pagina 57
... surface , therefore , as we look up at the planets and wonder how we can reach them , are in rather the same position as people at the bottom of a perfectly smooth pit or funnel 4,000 miles deep , set in the surface of an endless flat ...
... surface , therefore , as we look up at the planets and wonder how we can reach them , are in rather the same position as people at the bottom of a perfectly smooth pit or funnel 4,000 miles deep , set in the surface of an endless flat ...
Pagina 187
... surface of the Earth could be surveyed . The same result would be obtained by using an orbit inclined to the Equator at an angle of , say , forty - five degrees , as long as the satellite was more than a thou- sand miles above the surface ...
... surface of the Earth could be surveyed . The same result would be obtained by using an orbit inclined to the Equator at an angle of , say , forty - five degrees , as long as the satellite was more than a thou- sand miles above the surface ...
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