Claudius Ptolemy (1 janv. 100 – 1 janv. 165)
Description:
He made the discovery that all planets move around in a circle. He thought that the earth was the center of the universe. Established mathematically that an object and its mirror image must make equal angles to a mirror.Ajouté au bande de temps:
Date:
1 janv. 100
1 janv. 165
~ 65 years