The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 83
... course in speed , direction , or both , to correct for this . We have already pointed out , on page 73 , that the actual orientation or attitude of a spaceship has nothing to do with its direction of motion : it could be spinning or ...
... course in speed , direction , or both , to correct for this . We have already pointed out , on page 73 , that the actual orientation or attitude of a spaceship has nothing to do with its direction of motion : it could be spinning or ...
Pagina 110
... course , that the Earth must remain fixed in the lunar sky , never rising or setting . Owing to a slight " wobble " of the Moon as it travels in its orbit , the Earth would appear to move in a small circle around its average position ...
... course , that the Earth must remain fixed in the lunar sky , never rising or setting . Owing to a slight " wobble " of the Moon as it travels in its orbit , the Earth would appear to move in a small circle around its average position ...
Pagina 170
... course no definite boundaries . As we look out past the thinly scattered stars away from the plane of the Milky Way , we can see , at immense distances , the other galaxies . Some we observe turned full towards us , like great catherine ...
... course no definite boundaries . As we look out past the thinly scattered stars away from the plane of the Milky Way , we can see , at immense distances , the other galaxies . Some we observe turned full towards us , like great catherine ...
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