The Exploration of SpaceTemple Press, 1951 - 198 pagini |
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Pagina 32
... seen pictures of the " Wall of Death ” , a popular circus side - show in which a motor - cyclist drives round the inside of an almost vertical cylinder , centrifugal force allowing him to defy gravity . It will be seen that exactly the ...
... seen pictures of the " Wall of Death ” , a popular circus side - show in which a motor - cyclist drives round the inside of an almost vertical cylinder , centrifugal force allowing him to defy gravity . It will be seen that exactly the ...
Pagina 94
... seen on page 67 , the oxygen consumption is also two pounds per day for man . The water requirements are not so easy to calculate , since the amount of liquid the body needs varies a great deal with circumstances . Moreover , unlike ...
... seen on page 67 , the oxygen consumption is also two pounds per day for man . The water requirements are not so easy to calculate , since the amount of liquid the body needs varies a great deal with circumstances . Moreover , unlike ...
Pagina 187
... seen , the advent of space - travel will produce an expansion of scientific knowledge perhaps unparalleled in history . Now there are a good many people who think that we have already learned more than enough about the Universe in which ...
... seen , the advent of space - travel will produce an expansion of scientific knowledge perhaps unparalleled in history . Now there are a good many people who think that we have already learned more than enough about the Universe in which ...
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