The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 7
... later of Oberth had focused attention on the rocket , and even before the modern era of large - scale experimental work had proved the accuracy of these men's predictions , the rocket had been accepted as the motive power for spaceships ...
... later of Oberth had focused attention on the rocket , and even before the modern era of large - scale experimental work had proved the accuracy of these men's predictions , the rocket had been accepted as the motive power for spaceships ...
Pagina 70
... later . This , of course , gives the pilot a very wide range of control , though the timing for take - off must be exact . For the ship to reach the Moon's orbit , it must leave the vicinity of the Earth at a little less than full ...
... later . This , of course , gives the pilot a very wide range of control , though the timing for take - off must be exact . For the ship to reach the Moon's orbit , it must leave the vicinity of the Earth at a little less than full ...
Pagina 189
... later , was to echo the thunder of the first rockets climbing towards space . The power that was released on that day can take us to the stars , or it can send us to join the great reptiles and Nature's other unsuccessful experiments ...
... later , was to echo the thunder of the first rockets climbing towards space . The power that was released on that day can take us to the stars , or it can send us to join the great reptiles and Nature's other unsuccessful experiments ...
Cuprins
The Shaping of the Dream | 1 |
Navigation and Communication in Space | 78 |
1 | 118 |
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acceleration airless asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical completely course crew diameter difficult distance Earth energy engineering enormous escape velocity exploration extremely fact Figure free orbit fuel Galaxy gases gravitational field gravity heat hundred hydrogen imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing LEWIS CARROLL light light-years lunar Mars and Venus Martian means Mercury meteors miles million minutes missiles Moon Moon's motors never normal observed orbit oxygen payload perhaps planetary Plate Pluto possible pounds pressure probably problem produce propellant propulsion Proxima Centauri R. A. Smith radar radiation radio reach reason refueling rocket power satellite Saturn scientific ship Solar System space space-flight space-stations space-suits space-travel spaceship speed spinning stars stations structure sunlight surface take-off tanks telescope temperature thousand thrust trolley Uranus vehicle voyage weight weightless