The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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... look like ? " , " What may we expect to find on the planets ? " , and , above all , " What will we do when we get there ? " Very obviously , any such replies must at present be based on a most meagre foundation of exact knowledge , and ...
... look like ? " , " What may we expect to find on the planets ? " , and , above all , " What will we do when we get there ? " Very obviously , any such replies must at present be based on a most meagre foundation of exact knowledge , and ...
Pagina 165
... look towards the Milky Way , we are looking along the major axis of the Galaxy so that we see the stars packed in endless ranks as far as the eye , or even the telescope , can see . When we look in other directions , however , our gaze ...
... look towards the Milky Way , we are looking along the major axis of the Galaxy so that we see the stars packed in endless ranks as far as the eye , or even the telescope , can see . When we look in other directions , however , our gaze ...
Pagina 170
... look past the street - lamps of his suburb to the lights of another city , many miles away . The Andromeda Galaxy is the nearest of the other universes , 2 and it is about 700,000 light - years away . In whatever direction we look ...
... look past the street - lamps of his suburb to the lights of another city , many miles away . The Andromeda Galaxy is the nearest of the other universes , 2 and it is about 700,000 light - years away . In whatever direction we look ...
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