The Exploration of SpaceTemple Press, 1951 - 198 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 6
... scientific principles . Verne did not take the easy way out and invent , as so many writers before and since have done , some mysterious method of propulsion or a substance which would defy gravity . He knew that if a body could be ...
... scientific principles . Verne did not take the easy way out and invent , as so many writers before and since have done , some mysterious method of propulsion or a substance which would defy gravity . He knew that if a body could be ...
Pagina 18
... scientific instruments 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 . Goddard ...
... scientific instruments 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 . Goddard ...
Cuprins
Automatic Rocket Surveying Mars | 3 |
The Earth and its Neighbours | 9 |
The Rocket | 17 |
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acceleration already astronautics astronomers atmosphere body bricks British Astronomical Association 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 involved ionosphere journey Jupiter landing light light-years lunar 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 trolley Uranus voyage weight