The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 34
... course , a speed far greater than anything ever achieved by man or indeed by any man - made object . But it no longer seems as fantastic as it did even a decade ago . In 1940 , no rocket had ever travelled more than a thousand miles an ...
... course , a speed far greater than anything ever achieved by man or indeed by any man - made object . But it no longer seems as fantastic as it did even a decade ago . In 1940 , no rocket had ever travelled more than a thousand miles an ...
Pagina 85
... course around mid - voyage . The alteration would only be of the order of a degree , but that would produce the required compensation over the distances concerned . We have several times mentioned the use of radio and radar in space ...
... course around mid - voyage . The alteration would only be of the order of a degree , but that would produce the required compensation over the distances concerned . We have several times mentioned the use of radio and radar in space ...
Pagina 170
... course no definite boundaries . As we look out past the thinly scattered stars away from the plane of the Milky Way , we can see , at immense distances , the other galaxies . Some we observe turned full towards us , like great catherine ...
... course no definite boundaries . As we look out past the thinly scattered stars away from the plane of the Milky Way , we can see , at immense distances , the other galaxies . Some we observe turned full towards us , like great catherine ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
THE EARTH AND ITS NEIGHBOURS | 9 |
THE ROCKET | 17 |
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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