The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 49
... atmosphere were made at the correct angle , there would be no danger of the ship becoming incandescent : it would ... ATMOSPHERE FIRST CONTACT WITH ATMOSPHERE On its first contact , the ship would stay inside. Figure 11. Returning to ...
... atmosphere were made at the correct angle , there would be no danger of the ship becoming incandescent : it would ... ATMOSPHERE FIRST CONTACT WITH ATMOSPHERE On its first contact , the ship would stay inside. Figure 11. Returning to ...
Pagina 50
... atmosphere . It could then make a landing as a glider , slowly shedding its speed by air resistance . This operation ( called " entry by braking ellipses " ) is shown in Figure 11. It is of enormous importance , as it implies that no ...
... atmosphere . It could then make a landing as a glider , slowly shedding its speed by air resistance . This operation ( called " entry by braking ellipses " ) is shown in Figure 11. It is of enormous importance , as it implies that no ...
Pagina 144
... atmospheres of these planets , but as we are looking at least fifty years ahead it is reasonable to suppose that by then nuclear power plants for aircraft will have been perfected , and the surrounding atmosphere will be used merely as ...
... atmospheres of these planets , but as we are looking at least fifty years ahead it is reasonable to suppose that by then nuclear power plants for aircraft will have been perfected , and the surrounding atmosphere will be used merely as ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
Automatic Rocket Surveying Mars | 4 |
THE EARTH AND ITS NEIGHBOURS | 9 |
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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