The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 15
... later , it sets a 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 ...
... later , it sets a 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 ...
Pagina 35
... later , the birth of flight was preceded by a similar chorus of Cassandras -most famous of whom was the great American astronomer Simon Newcomb . ( In 1903 Newcomb wrote a paper which should have convinced the Wrights , had they read it ...
... later , the birth of flight was preceded by a similar chorus of Cassandras -most famous of whom was the great American astronomer Simon Newcomb . ( In 1903 Newcomb wrote a paper which should have convinced the Wrights , had they read it ...
Pagina 195
... later , was to echo the thunder of the first rockets climbing towards space . The power that was released on that day can take us to the stars , or it can send us to join the great reptiles and Nature's other unsuccessful experiments ...
... later , was to echo the thunder of the first rockets climbing towards space . The power that was released on that day can take us to the stars , or it can send us to join the great reptiles and Nature's other unsuccessful experiments ...
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