The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 43
... chapter , we touched on the subject of interplanetary orbits as opposed to " mere " circumnavigations of the Moon — and the somewhat surprising statement was made that , under favourable conditions , the planets could be reached with ...
... chapter , we touched on the subject of interplanetary orbits as opposed to " mere " circumnavigations of the Moon — and the somewhat surprising statement was made that , under favourable conditions , the planets could be reached with ...
Pagina 51
... Chapter 15 , the minimum height might be five hundred or even a thousand miles . ) The lower steps of the rocket , discarded during its climb out of the atmosphere , would fall back to earth along a line extending eastwards from the ...
... Chapter 15 , the minimum height might be five hundred or even a thousand miles . ) The lower steps of the rocket , discarded during its climb out of the atmosphere , would fall back to earth along a line extending eastwards from the ...
Pagina 149
... chapter . Indeed , many believe that the building of the space - station may be the first task of astronautics , antedating even the journey to the Moon . If one uses the word " space - station " to describe any artificial structure in ...
... chapter . Indeed , many believe that the building of the space - station may be the first task of astronautics , antedating even the journey to the Moon . If one uses the word " space - station " to describe any artificial structure in ...
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