The Exploration of Space |
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Pagina 34
This is precisely how the Moon maintains itself in its orbit as it circles the Earth .
And in just the same way the planets revolve round the Sun , prisoners of its
gravitational field yet always maintaining their distance . The speed necessary to
...
This is precisely how the Moon maintains itself in its orbit as it circles the Earth .
And in just the same way the planets revolve round the Sun , prisoners of its
gravitational field yet always maintaining their distance . The speed necessary to
...
Pagina 59
It will , of course , be realized that ships of this type would have to be constructed
in space from components ferried up from Earth and assembled in free orbit . As
exactly similar problems will be considered when we discuss the building of ...
It will , of course , be realized that ships of this type would have to be constructed
in space from components ferried up from Earth and assembled in free orbit . As
exactly similar problems will be considered when we discuss the building of ...
Pagina 157
The disturbing effect of the Sun and Moon , and the attraction of the Earth's own
equatorial bulge , would slowly alter the orbit of a satellite , causing its plane of
rotation to precess or tilt slowly up and down . The effect is very small and in most
...
The disturbing effect of the Sun and Moon , and the attraction of the Earth's own
equatorial bulge , would slowly alter the orbit of a satellite , causing its plane of
rotation to precess or tilt slowly up and down . The effect is very small and in most
...
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Cuprins
The Shaping of the Dream | 1 |
The Earth and Its Neighbors | 9 |
The Rocket | 17 |
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