The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 18
... carry scientific instruments a hundred miles vertically , then it could carry explosives a considerably greater distance horizontally . All Goddard's initial pioneering work was financed by a grant of some $ 11,000 , but the German ...
... carry scientific instruments a hundred miles vertically , then it could carry explosives a considerably greater distance horizontally . All Goddard's initial pioneering work was financed by a grant of some $ 11,000 , but the German ...
Pagina 25
... carry their oxygen , of course , but in this case it is already combined chemic- ally in whatever explosive is ... carrying vehicle for high THE ROCKET 25.
... carry their oxygen , of course , but in this case it is already combined chemic- ally in whatever explosive is ... carrying vehicle for high THE ROCKET 25.
Pagina 36
... carry a payload of 400 tons and give it a certain speed , which could not be greatly increased even if we cut the payload down to one ton and made the remaining 399 tons into fuel . The three - step rocket , on the other hand , could ...
... carry a payload of 400 tons and give it a certain speed , which could not be greatly increased even if we cut the payload down to one ton and made the remaining 399 tons into fuel . The three - step rocket , on the other hand , could ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
THE EARTH AND ITS NEIGHBOURS | 9 |
THE ROCKET | 17 |
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Termeni și expresii frecvente
able acceleration actual already appear astronautics astronomers atmosphere atomic become body build carry certainly Chapter close completely consider considerable course deal developed difficult direction discovered discuss distance Earth effect energy escape exist exploration extremely fact fall field Figure fuel give given gravity greater heat human hundred idea imagine important impossible increase interesting interplanetary involved journey known landing least less light limit live look lunar Mars material matter means miles minutes Moon motors necessary never observed once orbit oxygen perhaps period planets Plate possible practical present pressure probably problem produce purely radio reach reason relatively remain rocket round satellite scientific seems seen ship shown simple Solar space spaceship speed stars stations structure surface telescope temperature thousand Universe velocity Venus weight whole