The Exploration of SpaceHarper, 1951 - 199 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
... look at Plates V and IX - but it is the truth . Space - travel is a sufficiently sensational subject to require no additional embellish- ments , and in the long run we can be sure that our wildest flights of fancy will fall far short of ...
... look at Plates V and IX - but it is the truth . Space - travel is a sufficiently sensational subject to require no additional embellish- ments , and in the long run we can be sure that our wildest flights of fancy will fall far short of ...
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 |
The Earth and Its Neighbours | 7 |
The Rocket | 17 |
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acceleration already asteroids astronautics astronomers atmosphere body bricks 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 ionosphere journey Jupiter landing light light-years lunar Mare Imbrium 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 tion trolley Uranus voyage weight