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 74
... reasons for believing that , in time , we will be able to harness atomic energy for rocket propulsion . This would ... reason why there should not be . " Orbital refueling , " as it has been christened , is the key to interplanetary ...
... reasons for believing that , in time , we will be able to harness atomic energy for rocket propulsion . This would ... reason why there should not be . " Orbital refueling , " as it has been christened , is the key to interplanetary ...
Pagina 142
... reason this is often called the " dark side , " but of course it would receive just as much sunlight as the rest of the Moon - nor is there the slightest reason to suppose that it will be very different in any other way . When they ...
... reason this is often called the " dark side , " but of course it would receive just as much sunlight as the rest of the Moon - nor is there the slightest reason to suppose that it will be very different in any other way . When they ...
Pagina 172
... reason it has never been officially named and the " Nautical Al- manac , " the arbiter in such matters , always refers to it long - windedly as " the satellite of Neptune . " Perhaps the discovery of little Nereid in 1949 may expedite ...
... reason it has never been officially named and the " Nautical Al- manac , " the arbiter in such matters , always refers to it long - windedly as " the satellite of Neptune . " Perhaps the discovery of little Nereid in 1949 may expedite ...
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