The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 60
... exploration of the Moon is proceeding by the use of such ships and techniques , attempts will be made to refuel rockets for the journeys to Mars and Venus . Although the power requirements are not much greater than for the lunar voyage ...
... exploration of the Moon is proceeding by the use of such ships and techniques , attempts will be made to refuel rockets for the journeys to Mars and Venus . Although the power requirements are not much greater than for the lunar voyage ...
Pagina 140
... exploration of the planets . This is a point which is often ignored , or hastily by - passed , by writers on astronautics , who no doubt feel that they already have enough to deal with . Yet if our survey of the subject is to have claim ...
... exploration of the planets . This is a point which is often ignored , or hastily by - passed , by writers on astronautics , who no doubt feel that they already have enough to deal with . Yet if our survey of the subject is to have claim ...
Pagina 193
... exploration of , 133 gravity , 134 life present on , 133 moons , 10 , 122 , 131 , 133 , 134 , 146 orbit , 12 radio noise , 122 rotation , 119 , 133 size , 118 surface , 133 temperatures , 133 travel to , 135 Kepler , Johannes , Somnium ...
... exploration of , 133 gravity , 134 life present on , 133 moons , 10 , 122 , 131 , 133 , 134 , 146 orbit , 12 radio noise , 122 rotation , 119 , 133 size , 118 surface , 133 temperatures , 133 travel to , 135 Kepler , Johannes , Somnium ...
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