The Exploration of SpaceHarper, 1951 - 199 pagini |
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Pagina 132
... exploration would present no great difficulty , on this score at least , as it would be little hotter than Earth . Over the edge of the planet , on the night side , it would be incredibly cold , for no heat could reach here except by ...
... exploration would present no great difficulty , on this score at least , as it would be little hotter than Earth . Over the edge of the planet , on the night side , it would be incredibly cold , for no heat could reach here except by ...
Pagina 142
... exploration of the planets . This is a point which is often ignored , or hastily by - passed , by writers on astronautics , who no doubt feel that they already have enough to deal with . Yet if our survey of the subject is to have claim ...
... exploration of the planets . This is a point which is often ignored , or hastily by - passed , by writers on astronautics , who no doubt feel that they already have enough to deal with . Yet if our survey of the subject is to have claim ...
Pagina 180
... exploration of the Universe we have to assume voyages lasting many centuries , or even millions of years . Such voyages could be possible only if whole generations were willing to exile themselves in space . This would not neces- sarily ...
... exploration of the Universe we have to assume voyages lasting many centuries , or even millions of years . Such voyages could be possible only if whole generations were willing to exile themselves in space . This would not neces- sarily ...
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