The Exploration of Space |
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Pagina 20
Then both Newton's Third Law and common sense tell us that whatever speed the man has given himself in jumping to the right will be exactly equal to the speed with which the trolley rolls off to the left .
Then both Newton's Third Law and common sense tell us that whatever speed the man has given himself in jumping to the right will be exactly equal to the speed with which the trolley rolls off to the left .
Pagina 41
A striking example of this is given by the fact that though A an initial speed of 25,000 m.p.h. is needed for a rocket to reach the Moon ( closest distance 240,000 miles ) a rocket launched in the correct direction at 26,000 m.p.h. ...
A striking example of this is given by the fact that though A an initial speed of 25,000 m.p.h. is needed for a rocket to reach the Moon ( closest distance 240,000 miles ) a rocket launched in the correct direction at 26,000 m.p.h. ...
Pagina 105
Perhaps the best impression of the Moon's geography ( or , if one wishes to be pedantic , selenography ) is given by Plate VI ( a ) , which shows the general distribution of the craters and mountain ranges . It should be explained that ...
Perhaps the best impression of the Moon's geography ( or , if one wishes to be pedantic , selenography ) is given by Plate VI ( a ) , which shows the general distribution of the craters and mountain ranges . It should be explained that ...
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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 moving 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 seems seen ship shown simple Solar space spaceship speed stars stations structure surface telescope temperature thousand Universe velocity Venus weight whole
Informații bibliografice
| Titlu | The Exploration of Space |
| Autor | Arthur Charles Clarke |
| Editor | Temple Press, 1951 |
| Exemplar original de la | Universitatea din Michigan |
| Scanată la | 14 Dec 2007 |
| Lungime | 198 pagini |
| Exportă citatul | BiBTeX EndNote RefMan |