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
FRONTISPIECE Automatic Rocket Surveying Mars PLATE I HighAltitude ManCarrying Rocket | 3 |
Spaceships Refuelling In Free Orbit | 4 |
The Earth and its Neighbours | 9 |
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acceleration already asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical climb completely course crew degrees F difficult direction distance Earth energy enormous escape velocity exploration extremely fact Figure flywheel free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles imagine important interplanetary flight interplanetary travel interstellar involved ionosphere journey Jupiter landing light light-years lunar Mars and Venus Martian means Mercury meteors million minutes missile Moon Moon's motors never observed oxygen payload perhaps planetary planets Pluto possible pounds pressure pressurised probably problem produce propellant Propontis propulsion Proxima Centauri R. A. Smith radar radiation radio reach reason refuelling return to Earth rocket power satellite Saturn scientific ship Solar System space space-flight space-station space-suits space-travel spaceship speed spinning stars stations surface take-off telescope temperature terrestrial thousand thrust trolley Uranus voyage weight