The Exploration of SpaceHarper, 1951 - 199 pagini |
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Pagina 76
... 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 spaceship would need is an interesting problem which cannot , perhaps , be completely ...
... 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 spaceship would need is an interesting problem which cannot , perhaps , be completely ...
Pagina 121
... deal about her . Actually , we know practically nothing - not even the funda- mental fact of her rotation period , which we know for all the other planets except remote and tiny Pluto . The resemblance between our world and Venus ...
... deal about her . Actually , we know practically nothing - not even the funda- mental fact of her rotation period , which we know for all the other planets except remote and tiny Pluto . The resemblance between our world and Venus ...
Pagina 180
... deal larger — and would have incomparably greater facilities in every respect - than the State of Athens , in which small area , it may be remembered , a surprising number of men led remarkably fruitful lives . It is , perhaps , worth ...
... deal larger — and would have incomparably greater facilities in every respect - than the State of Athens , in which small area , it may be remembered , a surprising number of men led remarkably fruitful lives . It is , perhaps , worth ...
Cuprins
The Shaping of the Dream | 1 |
The Earth and Its Neighbours | 7 |
The Rocket | 17 |
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acceleration already asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical completely course crew degrees F difficult direction distance Earth energy enormous escape velocity exploration extremely fact Figure free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing light light-years lunar Mare Imbrium 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 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 tion trolley Uranus voyage weight