The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 145
... structure can therefore be held to a rigid shape , and will carry considerable loads , if the pressure excess between inside and out is even a very small fraction of an atmosphere . Probably the largest gas - supported structure yet ...
... structure can therefore be held to a rigid shape , and will carry considerable loads , if the pressure excess between inside and out is even a very small fraction of an atmosphere . Probably the largest gas - supported structure yet ...
Pagina 153
... structure need have only enough strength to maintain its stiffness . Indeed , the optical elements might be miles apart , if need be , with no physical connexion at all . This would make it possible , for the first time , to build ...
... structure need have only enough strength to maintain its stiffness . Indeed , the optical elements might be miles apart , if need be , with no physical connexion at all . This would make it possible , for the first time , to build ...
Pagina 159
... structural materials and would simply " dump " their cargoes in space until they were needed . The assembling would of course be enormously simplified by the absence of gravity , and the first structure to be built would probably be a ...
... structural materials and would simply " dump " their cargoes in space until they were needed . The assembling would of course be enormously simplified by the absence of gravity , and the first structure to be built would probably be a ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
Automatic Rocket Surveying Mars | 4 |
THE EARTH AND ITS NEIGHBOURS | 9 |
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acceleration already astronautics astronomers atmosphere atomic rockets 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 gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing light light-years lunar Mars and Venus Martian means Mercury meteors 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