The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 15
... Earth's surface on the way into space and much more important - it offers a means of and — much making a safe landing on the return . This thin blanket of air , without which life as we know it would be impossible , is held tightly to ...
... Earth's surface on the way into space and much more important - it offers a means of and — much making a safe landing on the return . This thin blanket of air , without which life as we know it would be impossible , is held tightly to ...
Pagina 33
... Earth . And in just the same way the planets revolve round the Sun , prisoners of its gravitational field yet always maintaining their distance . The speed necessary to move in such an orbit near the bottom of the crater ( i.e. near the ...
... Earth . And in just the same way the planets revolve round the Sun , prisoners of its gravitational field yet always maintaining their distance . The speed necessary to move in such an orbit near the bottom of the crater ( i.e. near the ...
Pagina 151
... Earth so that it would neither rise nor set . An object at a greater distance would move more slowly than the Earth on its axis and so would rise in the east and set in the west , as do all the celestial bodies . Inside this limit of ...
... Earth so that it would neither rise nor set . An object at a greater distance would move more slowly than the Earth on its axis and so would rise in the east and set in the west , as do all the celestial bodies . Inside this limit of ...
Cuprins
Automatic Rocket Surveying Mars | 3 |
The Earth and its Neighbours | 9 |
The Rocket | 17 |
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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