The Exploration of SpaceHarper, 1951 - 199 pagini |
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Pagina 28
... develop more powerful fuels , or evolve new methods of construction . Both these lines of attack will certainly be ... developed . We do this because experience has shown that , though many people can see FUEL OXIDISER ( b ) Figure 8 ...
... develop more powerful fuels , or evolve new methods of construction . Both these lines of attack will certainly be ... developed . We do this because experience has shown that , though many people can see FUEL OXIDISER ( b ) Figure 8 ...
Pagina 35
... developed to the utmost . That ceiling appears to be at about double the values we can achieve today , and some experts would put it considerably lower . Even taking the optimistic view , therefore , it appears that the maximum speed we ...
... developed to the utmost . That ceiling appears to be at about double the values we can achieve today , and some experts would put it considerably lower . Even taking the optimistic view , therefore , it appears that the maximum speed we ...
Pagina 41
... control has been sufficiently highly developed , it should be possible to steer the rocket into an orbit round the planet and to send back informa- tion to Earth . An impression of such a missile is given in the ESCAPING FROM EARTH 41.
... control has been sufficiently highly developed , it should be possible to steer the rocket into an orbit round the planet and to send back informa- tion to Earth . An impression of such a missile is given in the ESCAPING FROM EARTH 41.
Cuprins
The Shaping of the Dream | 1 |
The Earth and Its Neighbours | 7 |
The Rocket | 17 |
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Termeni și expresii frecvente
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