The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 68
... extremely cold outside the atmosphere . In fact , the reverse is nearer the truth . Consider the case of a solid body floating in space at the Earth's distance from the Sun. One side will be in shadow , the other in full sunlight . This ...
... extremely cold outside the atmosphere . In fact , the reverse is nearer the truth . Consider the case of a solid body floating in space at the Earth's distance from the Sun. One side will be in shadow , the other in full sunlight . This ...
Pagina 109
... extremely hot until the moment of sunset . ) During the long night the temperature drops to about 250 degrees below zero Fahrenheit , a total " daily " range of more than 400 degrees ! For comparison , the highest and lowest ...
... extremely hot until the moment of sunset . ) During the long night the temperature drops to about 250 degrees below zero Fahrenheit , a total " daily " range of more than 400 degrees ! For comparison , the highest and lowest ...
Pagina 139
... extremely difficult and to some extent a matter of luck . That the Sun can control the movement of bodies far out into interstellar space is proved by the existence of comets . Some of these strange entities travel on extremely ...
... extremely difficult and to some extent a matter of luck . That the Sun can control the movement of bodies far out into interstellar space is proved by the existence of comets . Some of these strange entities travel on extremely ...
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