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 112
... spaceships would attain , and it would be very difficult to measure it accurately . A much more practical method would involve the use of radio stations on the planets . To take a simple case , suppose the spaceship were near the Earth ...
... spaceships would attain , and it would be very difficult to measure it accurately . A much more practical method would involve the use of radio stations on the planets . To take a simple case , suppose the spaceship were near the Earth ...
Pagina 113
... spaceship has noth- ing to do with its direction of motion : it could be spinning or pointing in space in any manner without affecting its velocity . To alter this , the rockets have to be used in the manner shown in Figure 14 . A- ( a ) ...
... spaceship has noth- ing to do with its direction of motion : it could be spinning or pointing in space in any manner without affecting its velocity . To alter this , the rockets have to be used in the manner shown in Figure 14 . A- ( a ) ...
Pagina 114
... spaceship to use ? The answer is purely a matter of practical conve- nience . A spaceship leaving the Earth is primarily inter- ested , at least during the first few hours of flight , in its speed with respect to the Earth and would use ...
... spaceship to use ? The answer is purely a matter of practical conve- nience . A spaceship leaving the Earth is primarily inter- ested , at least during the first few hours of flight , in its speed with respect to the Earth and would use ...
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