The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 36
... exploration . If one man , by his own efforts , could only carry enough provisions for a journey of a hundred miles , it is possible to extend this range by starting with a large number of men who turn back at some point , after handing ...
... exploration . If one man , by his own efforts , could only carry enough provisions for a journey of a hundred miles , it is possible to extend this range by starting with a large number of men who turn back at some point , after handing ...
Pagina 61
... exploration of the planets and will prepare way for the later and more efficient ships . the In the absence of any revolutionary technical development ( and perhaps it would be wise to remind ourselves that this is a somewhat improbable ...
... exploration of the planets and will prepare way for the later and more efficient ships . the In the absence of any revolutionary technical development ( and perhaps it would be wise to remind ourselves that this is a somewhat improbable ...
Pagina 132
... exploration would present no great difficulty , on this score at least , as it would be little hotter than Earth . Over the edge of the planet , on the night side , it would be incredibly cold , for no heat could reach here except by ...
... exploration would present no great difficulty , on this score at least , as it would be little hotter than Earth . Over the edge of the planet , on the night side , it would be incredibly cold , for no heat could reach here except by ...
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