The Exploration of SpaceHarper, 1951 - 199 pagini |
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Pagina 38
... rocket would be a three - step one with a total weight of 150 tons , the first step being powered by a group of seven V.2 motors . ( In addition , a large number of solid - fuel booster rockets would be used at take - off . ) The fuel ...
... rocket would be a three - step one with a total weight of 150 tons , the first step being powered by a group of seven V.2 motors . ( In addition , a large number of solid - fuel booster rockets would be used at take - off . ) The fuel ...
Pagina 48
... rockets of this type , using the fuels and motors we may ultimately develop , could be ... rocket mentioned on page 37 , though even with this design much more ... power alone requires just as much effort as to attain it , and as long as ...
... rockets of this type , using the fuels and motors we may ultimately develop , could be ... rocket mentioned on page 37 , though even with this design much more ... power alone requires just as much effort as to attain it , and as long as ...
Pagina 78
... rocket power to adjust the final orbit as necessary . At the end of these manœuvres , which would occupy only a few hours , it would be back in a stable , circular orbit waiting to be refuelled and serviced , and the crew could be taken ...
... rocket power to adjust the final orbit as necessary . At the end of these manœuvres , which would occupy only a few hours , it would be back in a stable , circular orbit waiting to be refuelled and serviced , and the crew could be taken ...
Cuprins
The Shaping of the Dream | 1 |
The Earth and Its Neighbours | 7 |
The Rocket | 17 |
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acceleration already asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical completely course crew degrees F difficult direction distance Earth energy enormous escape velocity exploration extremely fact Figure free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing light light-years lunar Mare Imbrium Mars and Venus Martian means Mercury meteors million minutes missile Moon Moon's motors never observed oxygen payload perhaps planetary planets Pluto possible pounds pressure pressurised probably problem produce propellant propulsion Proxima Centauri R. A. Smith radar radiation radio reach reason refuelling return to Earth rocket power satellite Saturn scientific ship Solar System space space-flight space-station space-suits space-travel spaceship speed spinning stars stations surface take-off telescope temperature terrestrial thousand thrust tion trolley Uranus voyage weight