The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 10
... planets , we must alter the scale again , making the man sink far below visibility . With a reduction of a million ... planets or " asteroids " , few of which on this scale are much larger than grains of sand . We have to travel 483 ...
... planets , we must alter the scale again , making the man sink far below visibility . With a reduction of a million ... planets or " asteroids " , few of which on this scale are much larger than grains of sand . We have to travel 483 ...
Pagina 43
... planets could be reached with little more trouble than the Moon itself . Before we go on to discuss the building of true , man - carrying spaceships , we must look into this ... planet in order to keep up with it 43 THE ROAD TO THE PLANETS.
... planets could be reached with little more trouble than the Moon itself . Before we go on to discuss the building of true , man - carrying spaceships , we must look into this ... planet in order to keep up with it 43 THE ROAD TO THE PLANETS.
Pagina 120
... planets rather than their dimensions and distances apart - though it is worth looking at Figure again to remind ourselves of these . For reasons which are still unknown , the planets appear to form two quite distinct classes . On the ...
... planets rather than their dimensions and distances apart - though it is worth looking at Figure again to remind ourselves of these . For reasons which are still unknown , the planets appear to form two quite distinct classes . On the ...
Cuprins
THE SHAPING OF THE DREAM | 1 |
THE EARTH AND ITS NEIGHBOURS | 9 |
THE ROCKET | 17 |
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Termeni și expresii frecvente
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