The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 6
... adventurous — and also much more readable , for his First Men in the Moon is one of the very few interplanetary romances which is also a work of literary art . On the purely technical side , it 6 THE EXPLORATION OF SPACE.
... adventurous — and also much more readable , for his First Men in the Moon is one of the very few interplanetary romances which is also a work of literary art . On the purely technical side , it 6 THE EXPLORATION OF SPACE.
Pagina 26
... purely automatic - and thus expendable . The " exhaust speed " of modern liquid - fuelled rockets is of the order of 5,000 m.p.h. or even higher . Reverting to our earlier example of the trolley - load of bricks , it follows that a ...
... purely automatic - and thus expendable . The " exhaust speed " of modern liquid - fuelled rockets is of the order of 5,000 m.p.h. or even higher . Reverting to our earlier example of the trolley - load of bricks , it follows that a ...
Pagina 155
... take - off from the Earth . The orbital space - ports may therefore expect a long period of useful service before they become technologically obsolete . On a purely commercial basis , the greatest value of STATIONS IN SPACE 155.
... take - off from the Earth . The orbital space - ports may therefore expect a long period of useful service before they become technologically obsolete . On a purely commercial basis , the greatest value of STATIONS IN SPACE 155.
Cuprins
FRONTISPIECE Automatic Rocket Surveying Mars PLATE I HighAltitude ManCarrying Rocket | 3 |
Spaceships Refuelling In Free Orbit | 4 |
The Earth and its Neighbours | 9 |
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acceleration already asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical climb completely course crew degrees F difficult direction distance Earth energy enormous escape velocity exploration extremely fact Figure flywheel free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles 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 Propontis 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