The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 45
... reason why the routes shown in Figure 10 are the easiest is not hard to see : the rocket has to " take off " and " land " , if one can extend these phrases to cover such a case , in the directions in which the planets are already moving ...
... reason why the routes shown in Figure 10 are the easiest is not hard to see : the rocket has to " take off " and " land " , if one can extend these phrases to cover such a case , in the directions in which the planets are already moving ...
Pagina 47
... reasons for believing that , in time , we will be able to harness atomic energy for rocket propulsion . This would ... reason why there should not be . " Orbital refuelling " , as it has been christened , is the key to interplanetary ...
... reasons for believing that , in time , we will be able to harness atomic energy for rocket propulsion . This would ... reason why there should not be . " Orbital refuelling " , as it has been christened , is the key to interplanetary ...
Pagina 98
... reason are deprived of the use of these organs do not seem to suffer ill effects . They can also orientate them- selves correctly even under water , when there is no sensation of weight to give any assistance . This is because vision ...
... reason are deprived of the use of these organs do not seem to suffer ill effects . They can also orientate them- selves correctly even under water , when there is no sensation of weight to give any assistance . This is because vision ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
Automatic Rocket Surveying Mars | 4 |
THE EARTH AND ITS NEIGHBOURS | 9 |
Drept de autor | |
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acceleration already astronautics astronomers atmosphere atomic rockets 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 gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing light light-years lunar Mars and Venus Martian means Mercury meteors 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