The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 38
... motors , a payload of 110 pounds could be sent into an orbit round the Earth . The rocket would be a three- step one with a total weight of 150 tons , the first step being powered by a group of seven V.2 motors . ( In addition , a large ...
... motors , a payload of 110 pounds could be sent into an orbit round the Earth . The rocket would be a three- step one with a total weight of 150 tons , the first step being powered by a group of seven V.2 motors . ( In addition , a large ...
Pagina 60
... motors in the other . Although many alternative layouts are possible , this " dumb- bell " arrangement has certain advantages . From the engineering point of view , the sphere is the shape which lends itself most readily to ...
... motors in the other . Although many alternative layouts are possible , this " dumb- bell " arrangement has certain advantages . From the engineering point of view , the sphere is the shape which lends itself most readily to ...
Pagina 75
... motors are aimed at the Moon . Using the rockets to produce a deceleration of one gravity , a speed of fall of 5,000 m.p.h. could be checked in four minutes , during which time the ship would cover a distance of a hundred and sixty ...
... motors are aimed at the Moon . Using the rockets to produce a deceleration of one gravity , a speed of fall of 5,000 m.p.h. could be checked in four minutes , during which time the ship would cover a distance of a hundred and sixty ...
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