The Exploration of Space |
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Pagina 33
The speed necessary to move in such an orbit near the bottom of the crater ( i.e , near the Earth's surface ( e ) ) is 18,000 m.p.h. , and this is called “ circular velocity ” . Other similar orbits are shown at ( f ) and ( g ) .
The speed necessary to move in such an orbit near the bottom of the crater ( i.e , near the Earth's surface ( e ) ) is 18,000 m.p.h. , and this is called “ circular velocity ” . Other similar orbits are shown at ( f ) and ( g ) .
Pagina 60
An “ outrigger " near the forepart of the ship carries the equipment necessary for visual and radar observation of the approach to the Moon . This apparatus has to be kept clear of the rocket jet , which would not only produce such an ...
An “ outrigger " near the forepart of the ship carries the equipment necessary for visual and radar observation of the approach to the Moon . This apparatus has to be kept clear of the rocket jet , which would not only produce such an ...
Pagina 78
a air - resistance braking — as described on page 49 — and the use of a small amount of rocket power to adjust the final orbit as necessary . At the end of these manoeuvres , which would occupy only a few hours , it would be back in a ...
a air - resistance braking — as described on page 49 — and the use of a small amount of rocket power to adjust the final orbit as necessary . At the end of these manoeuvres , which would occupy only a few hours , it would be back in a ...
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Cuprins
THE SHAPING OF THE DREAM | 1 |
THE EARTH AND ITS NEIGHBOURS | 9 |
THE ROCKET | 17 |
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