The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 61
... exploration of the planets and will prepare the way for the later and more efficient ships . 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 the way for the later and more efficient ships . 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 ...
Pagina 142
... exploration of the planets . This is a point which is often ignored , or hastily by - passed , by writers on astronautics , who no doubt feel that they already have enough to deal with . Yet if our survey of the subject is to have claim ...
... exploration of the planets . This is a point which is often ignored , or hastily by - passed , by writers on astronautics , who no doubt feel that they already have enough to deal with . Yet if our survey of the subject is to have claim ...
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