Astrolabe (1 janv. 1050 – 1 janv. 2020)
Description:
1. Elaborate inclinometer2. 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:
1 janv. 1050
1 janv. 2020
~ 970 years