The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 34
... build up escape velocity as quickly as possible- and then to cut the rockets and " coast " . A commonplace but accurate analogy is given by the cyclist who builds up enough speed on the level to take him over a hill . To surmount our ...
... build up escape velocity as quickly as possible- and then to cut the rockets and " coast " . A commonplace but accurate analogy is given by the cyclist who builds up enough speed on the level to take him over a hill . To surmount our ...
Pagina 153
... build instru- ments which could measure the diameters of normal - sized stars . It might even become possible to detect planets of the nearer stars , something quite out of the question with earth - based equipment . Since 1945 ...
... build instru- ments which could measure the diameters of normal - sized stars . It might even become possible to detect planets of the nearer stars , something quite out of the question with earth - based equipment . Since 1945 ...
Pagina 190
... build spaceships any more than aeronautical societies , as such , build aircraft . They will be the specialist organisations — the professional bodies of the scientists and engineers doing work in this field . When the time comes to build ...
... build spaceships any more than aeronautical societies , as such , build aircraft . They will be the specialist organisations — the professional bodies of the scientists and engineers doing work in this field . When the time comes to build ...
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