The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 61
... exploration of the planets and will prepare the way for the later and more efficient ships . In the absence of any revolutionary technical development ( and perhaps it would be wise to remind ourselves that this is a somewhat improbable ...
... exploration of the planets and will prepare the way for the later and more efficient ships . In the absence of any revolutionary technical development ( and perhaps it would be wise to remind ourselves that this is a somewhat improbable ...
Pagina 132
... exploration would present no great difficulty , on this score at least , as it would be little hotter than Earth . Over the edge of the planet , on the night side , it would be incredibly cold , for no heat could reach here except by ...
... exploration would present no great difficulty , on this score at least , as it would be little hotter than Earth . Over the edge of the planet , on the night side , it would be incredibly cold , for no heat could reach here except by ...
Pagina 142
... exploration of the planets . This is a point which is often ignored , or hastily by - passed , by writers on astronautics , who no doubt feel that they already have enough to deal with . Yet if our survey of the subject is to have claim ...
... exploration of the planets . This is a point which is often ignored , or hastily by - passed , by writers on astronautics , who no doubt feel that they already have enough to deal with . Yet if our survey of the subject is to have claim ...
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