The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 27
... effect of this reduction , for a rocket rising vertically , is 20 m.p.h. for every second of climb - or 1,200 m.p.h. for every minute . These two factors may reduce a rocket's final velocity to about 70 per cent . of its theoretical ...
... effect of this reduction , for a rocket rising vertically , is 20 m.p.h. for every second of climb - or 1,200 m.p.h. for every minute . These two factors may reduce a rocket's final velocity to about 70 per cent . of its theoretical ...
Pagina 196
... effects of , 94-6 Air resistance , for landing space- ships , 49 Aircraft , use on planets , 143-4 Asteroids , 134-5 ... effect on radio , 86 Jupiter , 135-6 Kepler , Johannes , 3 Life in universe , 171-2 , 191-2 on Mars , 129 on Moon ...
... effects of , 94-6 Air resistance , for landing space- ships , 49 Aircraft , use on planets , 143-4 Asteroids , 134-5 ... effect on radio , 86 Jupiter , 135-6 Kepler , Johannes , 3 Life in universe , 171-2 , 191-2 on Mars , 129 on Moon ...
Pagina 197
... effect of ionosphere on , 86 position finding by , 82 relaying , by space stations , 156 Refuelling in orbit , 47 , 53-4 , 59 , 155 on Moon , 116-7 on Titan , 137 Relativity , Theory of effects at high speeds , 176-8 , 180 Rockets ...
... effect of ionosphere on , 86 position finding by , 82 relaying , by space stations , 156 Refuelling in orbit , 47 , 53-4 , 59 , 155 on Moon , 116-7 on Titan , 137 Relativity , Theory of effects at high speeds , 176-8 , 180 Rockets ...
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