The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 40
... ranges required have been only two hundred miles or so , but interplanetary ranges would be available with special techni ... range out in world - circling orbits with a complete indifference to the geography beneath them . The extent to ...
... ranges required have been only two hundred miles or so , but interplanetary ranges would be available with special techni ... range out in world - circling orbits with a complete indifference to the geography beneath them . The extent to ...
Pagina 87
... range without putting up power . It is reasonable to suppose that a spaceship could carry such a collector , folded up like an umbrella , with an effective area of a square yard or more . Very much larger mirrors could be employed at ...
... range without putting up power . It is reasonable to suppose that a spaceship could carry such a collector , folded up like an umbrella , with an effective area of a square yard or more . Very much larger mirrors could be employed at ...
Pagina 113
... range would be rather short and the service somewhat erratic owing to the Moon's rugged nature and near horizon - only two miles away for a man six feet high . One of the first tasks of the expedition would probably be to erect as tall ...
... range would be rather short and the service somewhat erratic owing to the Moon's rugged nature and near horizon - only two miles away for a man six feet high . One of the first tasks of the expedition would probably be to erect as tall ...
Cuprins
FRONTISPIECE Automatic Rocket Surveying Mars PLATE I HighAltitude ManCarrying Rocket | 3 |
Spaceships Refuelling In Free Orbit | 4 |
The Earth and its Neighbours | 9 |
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acceleration already asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical climb completely course crew degrees F difficult direction distance Earth energy enormous escape velocity exploration extremely fact Figure flywheel free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles 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 Propontis 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