The Exploration of SpaceHarper, 1951 - 199 pagini |
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Pagina 184
... human race can do : history is full of examples , from the Pyramids to the Manhattan Project , 2 of achievements whose difficulty and magnitude were so great that very few people would have considered them possible . The important ...
... human race can do : history is full of examples , from the Pyramids to the Manhattan Project , 2 of achievements whose difficulty and magnitude were so great that very few people would have considered them possible . The important ...
Pagina 186
... human character , thought and artistic creativeness . These things are the great imponderables of astronautics : in the long run they may be of far more importance than its purely material benefits , considerable though these will un ...
... human character , thought and artistic creativeness . These things are the great imponderables of astronautics : in the long run they may be of far more importance than its purely material benefits , considerable though these will un ...
Pagina 191
... human nature . One wonders if they would have asked Pheidias , when he was starting work on the Parthenon frieze , why he was not engaged on something useful like rebuilding the Athenian slums . If he had kept his temper , the artist ...
... human nature . One wonders if they would have asked Pheidias , when he was starting work on the Parthenon frieze , why he was not engaged on something useful like rebuilding the Athenian slums . If he had kept his temper , the artist ...
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