The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 4
... 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 was now becoming popular , and in 1640 Bishop Wilkins published a very important book , A ...
... 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 was now becoming popular , and in 1640 Bishop Wilkins published a very important book , A ...
Pagina 54
... idea : it is merely sound engineering . Shipbuilders do not try to give the same vessel the characteristics both of ocean greyhound and coastal tug . If we try to do this in spaceship construction , we shall be making our already ...
... idea : it is merely sound engineering . Shipbuilders do not try to give the same vessel the characteristics both of ocean greyhound and coastal tug . If we try to do this in spaceship construction , we shall be making our already ...
Pagina 172
... idea does not involve any mathematical or physical impossibilities , and the feat would not require too enormous amounts of fuel if the total con- version of mass into energy could be achieved . Although , at the moment , we have no idea ...
... idea does not involve any mathematical or physical impossibilities , and the feat would not require too enormous amounts of fuel if the total con- version of mass into energy could be achieved . Although , at the moment , we have no idea ...
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