The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 71
... the ship would reach the Moon's orbit 116 hours later : starting at 27,000 m.p.h. it would cover this distance in nineteen hours . 71 The reason for these surprisingly drastic reductions may be understood 6 - EOS THE JOURNEY TO THE MOON ༡1.
... the ship would reach the Moon's orbit 116 hours later : starting at 27,000 m.p.h. it would cover this distance in nineteen hours . 71 The reason for these surprisingly drastic reductions may be understood 6 - EOS THE JOURNEY TO THE MOON ༡1.
Pagina 105
... Moon's surface , and the temperature below the crust . Perhaps the best impression of the Moon's geography ( or , if ... Moon if it THE MOON 105 Lunar Formations:
... Moon's surface , and the temperature below the crust . Perhaps the best impression of the Moon's geography ( or , if ... Moon if it THE MOON 105 Lunar Formations:
Pagina 109
... Moon , there would be no trace of them at all and the temperature would be constant at about 30 degrees F. - We have no information at all about the Moon's chemical composition : its density is considerably less than the Earth's , but ...
... Moon , there would be no trace of them at all and the temperature would be constant at about 30 degrees F. - We have no information at all about the Moon's chemical composition : its density is considerably less than the Earth's , but ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
FRONTISPIECE Automatic Rocket Surveying Mars PLATE I HighAltitude ManCarrying Rocket | 4 |
Spaceships Refuelling In Free Orbit | 4 |
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acceleration already asteroids 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 flywheel free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles 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 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