The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 13
... limit to the height at which con- ventional aircraft can ever operate . That limit is between 10 and 15 miles — or , roughly speaking , where the THE EARTH AND ITS NEIGHBOURS 13.
... limit to the height at which con- ventional aircraft can ever operate . That limit is between 10 and 15 miles — or , roughly speaking , where the THE EARTH AND ITS NEIGHBOURS 13.
Pagina 15
... limit to the speed we can develop near the Earth's surface on the way into space and — much more important — it offers a means of making a safe landing on the return . This thin blanket of air , without which life as we know it would be ...
... limit to the speed we can develop near the Earth's surface on the way into space and — much more important — it offers a means of making a safe landing on the return . This thin blanket of air , without which life as we know it would be ...
Pagina 40
... 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 return , in Chapter 15 , to some of ...
... 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 return , in Chapter 15 , to some of ...
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