The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 68
... extremely cold outside the atmosphere . In fact , the reverse is nearer the truth . Consider the case of a solid body floating in space at the Earth's distance from the Sun. One side will be in shadow , the other in full sunlight . This ...
... extremely cold outside the atmosphere . In fact , the reverse is nearer the truth . Consider the case of a solid body floating in space at the Earth's distance from the Sun. One side will be in shadow , the other in full sunlight . This ...
Pagina 120
... extremely low ( in the case of Saturn , being actually less than that of water ) . We are forced to conclude from this that the four giant planets are partly gaseous or liquid , perhaps possessing solid cores only at great depths below ...
... extremely low ( in the case of Saturn , being actually less than that of water ) . We are forced to conclude from this that the four giant planets are partly gaseous or liquid , perhaps possessing solid cores only at great depths below ...
Pagina 139
... extremely difficult and to some extent a matter of luck . That the Sun can control the movement of bodies far out into interstellar space is proved by the existence of comets . Some of these strange entities travel on extremely ...
... extremely difficult and to some extent a matter of luck . That the Sun can control the movement of bodies far out into interstellar space is proved by the existence of comets . Some of these strange entities travel on extremely ...
Cuprins
Automatic Rocket Surveying Mars | 3 |
The Earth and its Neighbours | 9 |
The Rocket | 17 |
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acceleration already astronautics astronomers atmosphere body bricks British Astronomical Association build carry certainly Chapter chemical completely course crew degrees F difficult direction distance Earth energy enormous escape velocity exploration extremely fact Figure free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar involved ionosphere journey Jupiter landing light light-years lunar Mars and Venus Martian means Mercury meteors million minutes missile Moon Moon's motors never observed oxygen payload perhaps planetary planets Pluto possible pounds pressure pressurised probably problem produce propellant propulsion Proxima Centauri R. A. Smith radar radiation radio reach reason refuelling return to Earth rocket power satellite Saturn scientific ship Solar System space space-flight space-station space-suits space-travel spaceship speed spinning stars stations surface take-off telescope temperature terrestrial thousand thrust trolley Uranus voyage weight