The Exploration of SpaceHarper, 1951 - 199 pagini |
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Pagina 2
... scientific discussion of the Moon , its physical condition , and the possibility that it might have inhabitants . But Wilkins went further than this , for he concluded that there was no reason why men should not one day invent a means ...
... scientific discussion of the Moon , its physical condition , and the possibility that it might have inhabitants . But Wilkins went further than this , for he concluded that there was no reason why men should not one day invent a means ...
Pagina 18
... scientific in- struments to heights never before imagined.1 It would even be possible , Goddard concluded , to project a sufficient quantity of magnesium powder to the Moon for the flash to be observed by terrestrial telescopes ...
... scientific in- struments to heights never before imagined.1 It would even be possible , Goddard concluded , to project a sufficient quantity of magnesium powder to the Moon for the flash to be observed by terrestrial telescopes ...
Pagina 188
... scientific activity - even in medicine , for the power to heal is also the power to kill . It is , however , certainly more acute for the rocket engineer than anyone else except perhaps the nuclear physicist . He can only hope , if he ...
... scientific activity - even in medicine , for the power to heal is also the power to kill . It is , however , certainly more acute for the rocket engineer than anyone else except perhaps the nuclear physicist . He can only hope , if he ...
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