Astrolabe
The astrolabe is an ancient astronomical instrument, dating back more than 2,000 years, used to observe the positions of the stars. With modifications it has also been used for time-keeping,...
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Astrolabe
The astrolabe is an astronomical instrument used to observe the positions of the stars. With modifications it has also been used for timekeeping, navigation, and surveying. The most common t...
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Astrolabe
Astrolabe