The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 27
... effect of this reduction , for a rocket rising vertically , is 20 m.p.h. for every second of climb or 1,200 m.p.h. for every minute . These two factors may reduce a rocket's final velocity to about 70 per cent . of its theoretical value ...
... effect of this reduction , for a rocket rising vertically , is 20 m.p.h. for every second of climb or 1,200 m.p.h. for every minute . These two factors may reduce a rocket's final velocity to about 70 per cent . of its theoretical value ...
Pagina 176
... effects which concern us here involve the mass of an interstellar spaceship , and the " time - scale ” of its occupants . The mass of a body increases with its speed . The effect is immeasurably small at ordinary velocities , and is ...
... effects which concern us here involve the mass of an interstellar spaceship , and the " time - scale ” of its occupants . The mass of a body increases with its speed . The effect is immeasurably small at ordinary velocities , and is ...
Pagina 197
... effect of ionosphere on , 86 position finding by , 82 relaying , by space stations , 156 Refuelling in orbit , 47 , 53-4 , 59 , 155 on Moon , 116-7 on Titan , 137 Relativity , Theory of effects at high speeds , 176-8 , 180 Rockets ...
... effect of ionosphere on , 86 position finding by , 82 relaying , by space stations , 156 Refuelling in orbit , 47 , 53-4 , 59 , 155 on Moon , 116-7 on Titan , 137 Relativity , Theory of effects at high speeds , 176-8 , 180 Rockets ...
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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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