The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 34
... course , a speed far greater than anything ever achieved by man or indeed by any man - made object . But it no longer seems as fantastic as it did even a decade ago . In 1940 , no rocket had ever travelled more than a thousand miles an ...
... course , a speed far greater than anything ever achieved by man or indeed by any man - made object . But it no longer seems as fantastic as it did even a decade ago . In 1940 , no rocket had ever travelled more than a thousand miles an ...
Pagina 85
... course around mid - voyage . The alteration would only be of the order of a degree , but that would produce the required compensation over the distances concerned . We have several times mentioned the use of radio and radar in space ...
... course around mid - voyage . The alteration would only be of the order of a degree , but that would produce the required compensation over the distances concerned . We have several times mentioned the use of radio and radar in space ...
Pagina 170
... course no definite boundaries . As we look out past the thinly scattered stars away from the plane of the Milky Way , we can see , at immense distances , the other galaxies . Some we observe turned full towards us , like great catherine ...
... course no definite boundaries . As we look out past the thinly scattered stars away from the plane of the Milky Way , we can see , at immense distances , the other galaxies . Some we observe turned full towards us , like great catherine ...
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