The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 2
... suggested that colonies might be planted there , a proposal which , needless to say , caused some foreign writers to make rude remarks about British imperialism . During the next two centuries , there was a steady trickle of books about ...
... suggested that colonies might be planted there , a proposal which , needless to say , caused some foreign writers to make rude remarks about British imperialism . During the next two centuries , there was a steady trickle of books about ...
Pagina 132
... suggested that on Mercury will be both the coldest and the hottest points in the Solar System : the night temperature may be as low as -450 degrees F. - not far short of the absolute zero . The surface of Mercury is probably very ...
... suggested that on Mercury will be both the coldest and the hottest points in the Solar System : the night temperature may be as low as -450 degrees F. - not far short of the absolute zero . The surface of Mercury is probably very ...
Pagina 135
... suggested . The gulf between Mars and Jupiter is too enormous for a few thousand , or even a few million , asteroids to go very far towards filling it . It is convenient to treat Jupiter , Saturn , Uranus and Neptune together , for they ...
... suggested . The gulf between Mars and Jupiter is too enormous for a few thousand , or even a few million , asteroids to go very far towards filling it . It is convenient to treat Jupiter , Saturn , Uranus and Neptune together , for they ...
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