The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 5
... space- travel story had run into trouble . Too much was known about the difficulties and objections to interplanetary flight , and science had not yet advanced far enough to suggest how they might be overcome . The invention of the ...
... space- travel story had run into trouble . Too much was known about the difficulties and objections to interplanetary flight , and science had not yet advanced far enough to suggest how they might be overcome . The invention of the ...
Pagina 18
... travel , though it is known that his still unpublished notes ( he died in 1945 ) contain speculations on the subject ... Space . Six years later this was greatly expanded into the work which had become the " bible " of astronautics - The Way ...
... travel , though it is known that his still unpublished notes ( he died in 1945 ) contain speculations on the subject ... Space . Six years later this was greatly expanded into the work which had become the " bible " of astronautics - The Way ...
Pagina 187
... space - travel story shows how deeply this idea is rooted in Man's nature : if there were not a single good " scientific " reason for going to the planets , he would still want to go there , just the same . In fact , as we have seen ...
... space - travel story shows how deeply this idea is rooted in Man's nature : if there were not a single good " scientific " reason for going to the planets , he would still want to go there , just the same . In fact , as we have seen ...
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