The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 56
... close to the truth as , for example , Henson's " Aerial Steam Carriage " and similar nineteenth - century forecasts of heavier - than - air flying machines , we shall be well satisfied . L. } A 6. The Spaceship And these now earthward ...
... close to the truth as , for example , Henson's " Aerial Steam Carriage " and similar nineteenth - century forecasts of heavier - than - air flying machines , we shall be well satisfied . L. } A 6. The Spaceship And these now earthward ...
Pagina 153
... close objects — is thousands of times poorer than that of a pair of cheap opera - glasses . Moreover , because of its size , it is incapable of being moved . Out in space , these limitations could be overcome , for it would be possible ...
... close objects — is thousands of times poorer than that of a pair of cheap opera - glasses . Moreover , because of its size , it is incapable of being moved . Out in space , these limitations could be overcome , for it would be possible ...
Pagina 167
... close together that their gravitational fields distort them into ellipses , the longer axes pointing towards each other . Linking the two stars is a bridge of incandescent hydrogen , which sprays out from the central sun towards its ...
... close together that their gravitational fields distort them into ellipses , the longer axes pointing towards each other . Linking the two stars is a bridge of incandescent hydrogen , which sprays out from the central sun towards its ...
Cuprins
Automatic Rocket Surveying Mars | 3 |
The Earth and its Neighbours | 9 |
The Rocket | 17 |
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Termeni și expresii frecvente
acceleration already astronautics astronomers atmosphere body bricks British Astronomical Association 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 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 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