The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 15
... surface on the way into space and — much more important — it offers a means of 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 the Earth by the ...
... surface on the way into space and — much more important — it offers a means of 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 the Earth by the ...
Pagina 31
... surface , therefore , as we look up at the planets and wonder how we can reach them , are in rather the same position as people at the bottom of a perfectly smooth pit or funnel 4,000 miles deep , set in the surface of an endless , flat ...
... surface , therefore , as we look up at the planets and wonder how we can reach them , are in rather the same position as people at the bottom of a perfectly smooth pit or funnel 4,000 miles deep , set in the surface of an endless , flat ...
Pagina 76
... surface of the Moon . By the time a landing is attempted we will certainly have large - scale photographs of the lunar plains and will have located numerous relatively flat areas which would provide suitable places for a touch - down ...
... surface of the Moon . By the time a landing is attempted we will certainly have large - scale photographs of the lunar plains and will have located numerous relatively flat areas which would provide suitable places for a touch - down ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
FRONTISPIECE Automatic Rocket Surveying Mars PLATE I HighAltitude ManCarrying Rocket | 4 |
Spaceships Refuelling In Free Orbit | 4 |
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Termeni și expresii frecvente
acceleration already asteroids 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 flywheel free orbit fuel Galaxy giant gravitational field gravity heat Hermann Oberth hundred miles 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 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