The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 149
... structure in a permanent , stable orbit , this view is certainly correct , for there is no doubt that instrument ... structures could be established in space , it was quickly seen that they would be useful for so many scientific purposes ...
... structure in a permanent , stable orbit , this view is certainly correct , for there is no doubt that instrument ... structures could be established in space , it was quickly seen that they would be useful for so many scientific purposes ...
Pagina 153
... structure need have only enough strength to maintain its stiffness . Indeed , the optical elements might be miles apart , if need be , with no physical connexion at all . This would make it possible , for the first time , to build ...
... structure need have only enough strength to maintain its stiffness . Indeed , the optical elements might be miles apart , if need be , with no physical connexion at all . This would make it possible , for the first time , to build ...
Pagina 168
... structure of the universe through the screen of stars which hid them from the rest of space . As will be seen from the examples in Plate XIII , stars vary greatly among themselves in physical structure , as well as in size and ...
... structure of the universe through the screen of stars which hid them from the rest of space . As will be seen from the examples in Plate XIII , stars vary greatly among themselves in physical structure , as well as in size and ...
Cuprins
FRONTISPIECE Automatic Rocket Surveying Mars PLATE I HighAltitude ManCarrying Rocket | 3 |
Spaceships Refuelling In Free Orbit | 4 |
The Earth and its Neighbours | 9 |
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Termeni și expresii frecvente
acceleration already asteroids astronautics astronomers atmosphere body bricks build carry certainly Chapter chemical climb completely course crew degrees F difficult direction distance Earth energy enormous escape velocity exploration extremely fact Figure flywheel free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles 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 Propontis 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