The Exploration of SpaceHarper, 1959 - 200 pagini |
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Pagina 5
... scientific . No doubt the great engineering achievements of the Victorian age had produced a feeling of optimism : so much had already been accom- plished that perhaps even the bridging of space was no longer a totally impossible dream ...
... scientific . No doubt the great engineering achievements of the Victorian age had produced a feeling of optimism : so much had already been accom- plished that perhaps even the bridging of space was no longer a totally impossible dream ...
Pagina 6
... scientific principles . Verne did not take the easy way out and in- vent , as so many writers before and since have done , some mys- terious method of propulsion or a substance which would defy gravity . He knew that if a body could be ...
... scientific principles . Verne did not take the easy way out and in- vent , as so many writers before and since have done , some mys- terious method of propulsion or a substance which would defy gravity . He knew that if a body could be ...
Pagina 18
... scientific instruments to heights never before imagined . It would even be possible , Goddard concluded , to pro- ject a sufficient quantity of magnesium powder to the Moon for the flash to be observed by terrestrial telescopes ...
... scientific instruments to heights never before imagined . It would even be possible , Goddard concluded , to pro- ject a sufficient quantity of magnesium powder to the Moon for the flash to be observed by terrestrial telescopes ...
Cuprins
The Shaping of the Dream | 1 |
The Earth and Its Neighbors | 9 |
The Rocket | 17 |
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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 satellites 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