The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 15
Arthur Charles Clarke. from the Earth lengthens into the thousands of miles , the reduc- tion becomes substantial : twelve thousand miles up , a one - pound weight would weigh only an ounce . It follows , therefore , that the farther ...
Arthur Charles Clarke. from the Earth lengthens into the thousands of miles , the reduc- tion becomes substantial : twelve thousand miles up , a one - pound weight would weigh only an ounce . It follows , therefore , that the farther ...
Pagina 43
... thousand times as great . Once again it should be emphasized that , to travel from one planet to another , rocket ... thousands of miles in which to build up speed at a rate which human passengers could withstand . Still , this distance ...
... thousand times as great . Once again it should be emphasized that , to travel from one planet to another , rocket ... thousands of miles in which to build up speed at a rate which human passengers could withstand . Still , this distance ...
Pagina 133
... thousands of them exist , they cannot constitute a " menace to navigation , " as has sometimes been suggested . The gulf between Mars and Jupiter is too enormous for a few thousand , or even a few million , asteroids to go very far to ...
... thousands of them exist , they cannot constitute a " menace to navigation , " as has sometimes been suggested . The gulf between Mars and Jupiter is too enormous for a few thousand , or even a few million , asteroids to go very far to ...
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