The Exploration of SpaceHarper, 1951 - 199 pagini |
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Pagina 64
... atomic pile , for nuclear reactions liberate something like a million times the energy of chemical reactions . It is now possible to build piles ( employing enriched uranium instead of the element in its nor- mal form ) which are only a ...
... atomic pile , for nuclear reactions liberate something like a million times the energy of chemical reactions . It is now possible to build piles ( employing enriched uranium instead of the element in its nor- mal form ) which are only a ...
Pagina 116
... atomic rocket would provide ample energy to run turbines and generators . There is a good deal to be said for moving the lunar base underground at the earliest opportunity , if it proves possible to excavate the Moon's surface rocks ...
... atomic rocket would provide ample energy to run turbines and generators . There is a good deal to be said for moving the lunar base underground at the earliest opportunity , if it proves possible to excavate the Moon's surface rocks ...
Pagina 188
... atomic energy without atomic bombs . This particular problem is not , of course , peculiar to rocket research : it can be encountered today in every field of scientific activity - even in medicine , for the power to heal is also the ...
... atomic energy without atomic bombs . This particular problem is not , of course , peculiar to rocket research : it can be encountered today in every field of scientific activity - even in medicine , for the power to heal is also the ...
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