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 49
... important example , is considerably more complicated but also capable of much higher performances . Instead of using solid propellants stored and burned in the same container , it uses liquid fuels which are kept in separate tanks and ...
... important example , is considerably more complicated but also capable of much higher performances . Instead of using solid propellants stored and burned in the same container , it uses liquid fuels which are kept in separate tanks and ...
Pagina 72
... important difference that whereas the shell acquires its velocity in a few feet under an enormous accelera- tion , the spaceship has thousands of miles in which to build up speed at a rate which human passengers could withstand . Still ...
... important difference that whereas the shell acquires its velocity in a few feet under an enormous accelera- tion , the spaceship has thousands of miles in which to build up speed at a rate which human passengers could withstand . Still ...
Pagina 212
... important as one nears the velocity of light , and at that speed the mass of any object would become infinite . This , of course , is merely another way of saying that the velocity of light can be approached as closely as one pleases ...
... important as one nears the velocity of light , and at that speed the mass of any object would become infinite . This , of course , is merely another way of saying that the velocity of light can be approached as closely as one pleases ...
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