The Exploration of SpacePocket Books, 1979 - 237 pagini Presents a nonscientific explanation of space exploration and a view of future life on other planets. |
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Pagina 38
... Earth we may wish it had a much smaller value . • Of all natural forces , gravity is the most universal and it dominates any discussion of space - flight . Here on the Earth's surface we can never escape from its influence , and its ...
... Earth we may wish it had a much smaller value . • Of all natural forces , gravity is the most universal and it dominates any discussion of space - flight . Here on the Earth's surface we can never escape from its influence , and its ...
Pagina 89
... Earth , make a reconnaissance of the Moon , and return to the Earth orbit . ( 5 ) The type of ship designed for a lunar land- ing will be flown up from Earth or assembled in free orbit , and after refueling will descend on the Moon ...
... Earth , make a reconnaissance of the Moon , and return to the Earth orbit . ( 5 ) The type of ship designed for a lunar land- ing will be flown up from Earth or assembled in free orbit , and after refueling will descend on the Moon ...
Pagina 187
... Earth so that it would neither rise nor set . An object at a greater distance would move more slowly than the Earth on its axis and so would rise in the east and set in the west , as do all the celestial bodies . Inside this limit of ...
... Earth so that it would neither rise nor set . An object at a greater distance would move more slowly than the Earth on its axis and so would rise in the east and set in the west , as do all the celestial bodies . Inside this limit of ...
Cuprins
Preface to the 1951 Edition | 11 |
Thirty Years Later | 15 |
The Shaping of the Dream | 21 |
Drept de autor | |
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acceleration airless already astronautics astronomers atmo atmosphere body bricks build carry certainly Chapter chemical completely conquest of space consider course crew degrees F difficult direction distance Earth energy enormous escape velocity exist exploration extremely fact Figure fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere Jerry Pournelle journey Jupiter landing large number light light-years lunar Mars and Venus Martian means Mercury meteors miles in diameter million minutes missile Moon Moon's motors never normal observed once oxygen payload perhaps planetary planets Pluto possible pounds pressure probably problem produce propellant propulsion Proxima Centauri radar radio reach reason refueling rocket power satellite Saturn scientific ship Solar System space space-flight space-station space-suits space-travel spaceship speed spin stars stations surface take-off telescope temperature thousand thrust tion trolley voyage weight weightless