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 36
... figure was reached . As we ascend from the Earth's surface , the pressure and density of the air fall steadily , and in Figure 2 an attempt has been made to show this on the correct scale . The greatest height at which men can live ...
... figure was reached . As we ascend from the Earth's surface , the pressure and density of the air fall steadily , and in Figure 2 an attempt has been made to show this on the correct scale . The greatest height at which men can live ...
Pagina 52
... Figure 7 is an attempt to show in diagrammatic form the effect of a rocket's fuel - weight to empty - weight ratio on its performance . In each case the empty - weight has been assumed to be the same one ton . The first rocket Figure 7 ...
... Figure 7 is an attempt to show in diagrammatic form the effect of a rocket's fuel - weight to empty - weight ratio on its performance . In each case the empty - weight has been assumed to be the same one ton . The first rocket Figure 7 ...
Pagina 53
... figure we must either develop more powerful fuels , or evolve new methods of construction . Both these lines of ... Figure 8 , which is a simplified cross - section of a rocket motor . The fuel is injected from the left and FUEL ( a ) ...
... figure we must either develop more powerful fuels , or evolve new methods of construction . Both these lines of ... Figure 8 , which is a simplified cross - section of a rocket motor . The fuel is injected from the left and FUEL ( a ) ...
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