The Exploration of SpaceHarper, 1951 - 199 pagini |
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Pagina 2
... discovered that its pull was much weaker , so that one could jump to great heights . This idea is now quite familiar to us , but Godwin was writing fifty years before Newton discovered the law of gravitation . The idea of lunar voyages ...
... discovered that its pull was much weaker , so that one could jump to great heights . This idea is now quite familiar to us , but Godwin was writing fifty years before Newton discovered the law of gravitation . The idea of lunar voyages ...
Pagina 124
Arthur Charles Clarke. waves which , as we ourselves have only just discovered , come from the Milky Way . If our ... discovery of this strange source of radiation so close at hand . That it was relatively close they would have realised ...
Arthur Charles Clarke. waves which , as we ourselves have only just discovered , come from the Milky Way . If our ... discovery of this strange source of radiation so close at hand . That it was relatively close they would have realised ...
Pagina 138
... discovery of little Nereid in 1949 may expedite the formal christening of its big brother . Until 1930 , Neptune's orbit marked the frontier of the Solar System . In that year Pluto was discovered as a result of a long search by the ...
... discovery of little Nereid in 1949 may expedite the formal christening of its big brother . Until 1930 , Neptune's orbit marked the frontier of the Solar System . In that year Pluto was discovered as a result of a long search by the ...
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