Astrolabe (1 janv. 1050 – 1 janv. 2020)
Description:
1. Elaborate inclinometer
2. Used to make astronomical measurements
3. Calculates latitude
4. Has a disk with the edge marked in degrees and a pivotal pointer
5. Measures the altitude of celestial bodies
Ajouté au bande de temps:
Date:
Les images:
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