The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 4
... discovered that its pull was much weaker , so that one could jump to great heights . This idea is now quite familiar to us , but Godwin was writing fifty years before Newton discovered the law of gravitation . The idea of lunar voyages ...
... discovered that its pull was much weaker , so that one could jump to great heights . This idea is now quite familiar to us , but Godwin was writing fifty years before Newton discovered the law of gravitation . The idea of lunar voyages ...
Pagina 109
... discovered . Nevertheless , it is possible to foresee certain lines of development which appear likely as soon as we ... discovery , it is that , in the long run - and often in the short one - the most daring prophecies seem laughably ...
... discovered . Nevertheless , it is possible to foresee certain lines of development which appear likely as soon as we ... discovery , it is that , in the long run - and often in the short one - the most daring prophecies seem laughably ...
Pagina 136
... discovered Miranda . ( Presumably the next to be detected is doomed to be christened Caliban . ) Titania is about ... discovered as a result of a long search by the Lowell Observatory . The discovery was based on mathematical ...
... discovered Miranda . ( Presumably the next to be detected is doomed to be christened Caliban . ) Titania is about ... discovered as a result of a long search by the Lowell Observatory . The discovery was based on mathematical ...
Cuprins
The Shaping of the Dream | 1 |
Navigation and Communication in Space | 78 |
1 | 118 |
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acceleration airless asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical completely course crew diameter difficult distance Earth energy engineering enormous escape velocity exploration extremely fact Figure free orbit fuel Galaxy gases gravitational field gravity heat hundred hydrogen imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing LEWIS CARROLL light light-years lunar Mars and Venus Martian means Mercury meteors miles million minutes missiles Moon Moon's motors never normal observed orbit oxygen payload perhaps planetary Plate Pluto possible pounds pressure probably problem produce propellant propulsion Proxima Centauri R. A. Smith radar radiation radio reach reason refueling rocket power satellite Saturn scientific ship Solar System space space-flight space-stations space-suits space-travel spaceship speed spinning stars stations structure sunlight surface take-off tanks telescope temperature thousand thrust trolley Uranus vehicle voyage weight weightless