The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 63
... atomic energy has been released only in the forms of radiation and heat . It can be produced at all power levels from that needed to boil a cup of water in five minutes to that required to smash a city in a few seconds . There is no way ...
... atomic energy has been released only in the forms of radiation and heat . It can be produced at all power levels from that needed to boil a cup of water in five minutes to that required to smash a city in a few seconds . There is no way ...
Pagina 64
... atomic pile , for nuclear reactions liberate something like a million times the energy of chemical reactions . It is now possible to build piles ( employing enriched uranium instead of the element in its normal form ) which are only a ...
... atomic pile , for nuclear reactions liberate something like a million times the energy of chemical reactions . It is now possible to build piles ( employing enriched uranium instead of the element in its normal form ) which are only a ...
Pagina 175
... atomic rockets will come the electric , or ion , rocket — a device whose outlines can be foreseen even today . It is possible , by appropriate electric and magnetic fields , to accelerate charged particles ( ions ) to velocities near ...
... atomic rockets will come the electric , or ion , rocket — a device whose outlines can be foreseen even today . It is possible , by appropriate electric and magnetic fields , to accelerate charged particles ( ions ) to velocities near ...
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