1 control de flotas // 16.12.2011 в 3:13 дп
on the dark side of the earth….
they are placed so that at any given time there are at least 4 satellites ?visible? from any point on earth. small rocket boosters on each satellite keep them properly positioned. the satellites have a lifetime of about 10 years until…
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1 // 16.12.2011 в 3:13 дп
on the dark side of the earth….
they are placed so that at any given time there are at least 4 satellites ?visible? from any point on earth. small rocket boosters on each satellite keep them properly positioned. the satellites have a lifetime of about 10 years until…
Вы должны войти, чтобы оставить комментарий.