The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 4
... idea is now quite familiar to us , but Godwin was writing fifty years before Newton discovered the law of gravitation . The idea of lunar voyages was now becoming popular , and in 1640 Bishop Wilkins published a very important book A ...
... idea is now quite familiar to us , but Godwin was writing fifty years before Newton discovered the law of gravitation . The idea of lunar voyages was now becoming popular , and in 1640 Bishop Wilkins published a very important book A ...
Pagina 56
... idea : it is merely sound engineering . Shipbuilders do not try to give the same vessel the characteristics both of ocean greyhound and coastal tug . If we try to do this in spaceship construction , we shall be making our already ...
... idea : it is merely sound engineering . Shipbuilders do not try to give the same vessel the characteristics both of ocean greyhound and coastal tug . If we try to do this in spaceship construction , we shall be making our already ...
Pagina 177
... idea does not involve any mathematical or physical impossibilities , and the feat would not require too enormous amounts of fuel if the total conversion of mass into energy could be achieved . Although , at the moment , we have no idea ...
... idea does not involve any mathematical or physical impossibilities , and the feat would not require too enormous amounts of fuel if the total conversion of mass into energy could be achieved . Although , at the moment , we have no idea ...
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