The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 40
... direction must clearly have some limit : once that limit has been agreed , a country would appear to have no redress if an inquisitive neighbour started making rocket reconnaissances as long as they were at a legal height ! We will ...
... direction must clearly have some limit : once that limit has been agreed , a country would appear to have no redress if an inquisitive neighbour started making rocket reconnaissances as long as they were at a legal height ! We will ...
Pagina 73
... direction of motion - which is itself a quite arbitrary quantity , depending entirely on the viewpoint of the ... direction could have its rotation stopped by a rocket fired against the direction of spin . This method would be ( 11 ) ( 1 ) ...
... direction of motion - which is itself a quite arbitrary quantity , depending entirely on the viewpoint of the ... direction could have its rotation stopped by a rocket fired against the direction of spin . This method would be ( 11 ) ( 1 ) ...
Pagina 83
... 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 pointing in space in ...
... 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 pointing in space in ...
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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Termeni și expresii frecvente
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