The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 50
... landing as a glider , slowly shedding its speed by air resistance . This operation ( called " entry by braking ellipses " ) is shown in Figure 11. It is of enormous importance , as it implies that no rocket power need be used for landing ...
... landing as a glider , slowly shedding its speed by air resistance . This operation ( called " entry by braking ellipses " ) is shown in Figure 11. It is of enormous importance , as it implies that no rocket power need be used for landing ...
Pagina 61
... landing by wings or parachutes . ( 3 ) Multistage , manned rockets will enter circular orbits just outside the atmosphere and , after a number of revolutions , will return by rocket - braking and air resistance . ( 4 ) Experiments will ...
... landing by wings or parachutes . ( 3 ) Multistage , manned rockets will enter circular orbits just outside the atmosphere and , after a number of revolutions , will return by rocket - braking and air resistance . ( 4 ) Experiments will ...
Pagina 76
... landing and 1 - g vertical take - off . If the gyroscopes and steering devices can deal with the one case - as they already do in the V.2 rocket - they can deal just as well with the other . What sort of " undercarriage " our lunar ...
... landing and 1 - g vertical take - off . If the gyroscopes and steering devices can deal with the one case - as they already do in the V.2 rocket - they can deal just as well with the other . What sort of " undercarriage " our lunar ...
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