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 76
... fall down than can the Moon . This is where the Earth's atmosphere - which was a nuisance on the way up - proves to be an advantage . Suppose the ship still has a little fuel , and suppose that by some means ( see page 103 ) it is ...
... fall down than can the Moon . This is where the Earth's atmosphere - which was a nuisance on the way up - proves to be an advantage . Suppose the ship still has a little fuel , and suppose that by some means ( see page 103 ) it is ...
Pagina 78
... fall back to Earth along a line extending eastwards from the launching site , the actual points of impact depending on the height of release and the velocities at separation . In extreme cases , the last step but one might go almost ...
... fall back to Earth along a line extending eastwards from the launching site , the actual points of impact depending on the height of release and the velocities at separation . In extreme cases , the last step but one might go almost ...
Pagina 80
... fall " is " free orbit . " In this state , which would begin at the moment the rockets were turned off , the ship and its occupants would have no weight whatsoever . This condition would last even when the ship entered another ...
... fall " is " free orbit . " In this state , which would begin at the moment the rockets were turned off , the ship and its occupants would have no weight whatsoever . This condition would last even when the ship entered another ...
Cuprins
Preface to the 1951 Edition | 11 |
Thirty Years Later | 15 |
The Shaping of the Dream | 21 |
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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