The Exploration of SpaceTemple Press, 1951 - 198 pagini |
Din interiorul cărții
Rezultatele 1 - 3 din 15
Pagina 29
... rocket and its method of operation before us , we can now go on to discuss the magnitude of the task confronting it , if it is to be used to lift us away from the Earth . 4. Escaping from Earth " Now , here , you THE ROCKET 29.
... rocket and its method of operation before us , we can now go on to discuss the magnitude of the task confronting it , if it is to be used to lift us away from the Earth . 4. Escaping from Earth " Now , here , you THE ROCKET 29.
Pagina 50
... operation ( called " entry by braking ellipses " ) is shown in Figure 11. It is of enormous importance , as it implies that no rocket power need be used for landing on a planet with a reasonably dense atmosphere , such as Earth , Venus ...
... operation ( called " entry by braking ellipses " ) is shown in Figure 11. It is of enormous importance , as it implies that no rocket power need be used for landing on a planet with a reasonably dense atmosphere , such as Earth , Venus ...
Pagina 54
... operation would be exactly similar to that of flight refuelling in the air - the actual speeds of the aircraft being of no importance as long as they are equal . In the case of orbital refuelling , the problem of contact should be ...
... operation would be exactly similar to that of flight refuelling in the air - the actual speeds of the aircraft being of no importance as long as they are equal . In the case of orbital refuelling , the problem of contact should be ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
Automatic Rocket Surveying Mars | 4 |
THE EARTH AND ITS NEIGHBOURS | 9 |
Drept de autor | |
22 alte secțiuni nu sunt arătate
Alte ediții - Afișează-le pe toate
Termeni și expresii frecvente
acceleration already astronautics astronomers atmosphere atomic rockets 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 gravitational field gravity heat Hermann Oberth hundred miles idea imagine important interplanetary flight interplanetary travel interstellar ionosphere journey Jupiter landing light light-years lunar Mars and Venus Martian means Mercury meteors 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