The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 63
... 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 , however , in which it can be used directly to provide a ...
... 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 , however , in which it can be used directly to provide a ...
Pagina 68
... heat waves . In the extreme case of a completely black body , the temperature at the parts directly facing the Sun ... heat and so be quite cool . The dark ( or night ) side of the body would be cold in any case , since it is continually ...
... heat waves . In the extreme case of a completely black body , the temperature at the parts directly facing the Sun ... heat and so be quite cool . The dark ( or night ) side of the body would be cold in any case , since it is continually ...
Pagina 147
... heat needed to keep an encampment warm even on Pluto . Heat is the one commodity which atomic power can already supply in unlimited amounts . It would be when one attempted to explore these planets , either in space - suits or vehicles ...
... heat needed to keep an encampment warm even on Pluto . Heat is the one commodity which atomic power can already supply in unlimited amounts . It would be when one attempted to explore these planets , either in space - suits or vehicles ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
THE EARTH AND ITS NEIGHBOURS | 9 |
THE ROCKET | 17 |
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able acceleration actual already appear astronautics astronomers atmosphere atomic become body build carry certainly Chapter close completely consider considerable course deal developed difficult direction discovered discuss distance Earth effect energy escape exist exploration extremely fact fall field Figure fuel give given gravity greater heat human hundred idea imagine important impossible increase interesting interplanetary involved journey known landing least less light limit live look lunar Mars material matter means miles minutes Moon motors necessary never observed once orbit oxygen perhaps period planets Plate possible practical present pressure probably problem produce purely radio reach reason relatively remain rocket round satellite scientific seems seen ship shown simple Solar space spaceship speed stars stations structure surface telescope temperature thousand Universe velocity Venus weight whole