Pouvoir d'attraction. Le magnétisme.
- il y a 12 ans
Inventé par les chinois deux siècle av J.C, la boussole va longtemps rester inconnue en Europe. C’est en 1150 que des marchands arabe, retour de Chine, l’a font connaître à des marins génois. Au XIIIème siècle, Pierre de Maricourt s’intéresse au magnétisme et énonce une loi fondamental : les pôles identiques se repoussent et les pôles différents s’attirent.
Invented by the Chinese in 2 BC, the compass remained unknown in Europe for a long time afterwards. It was only in 1150, when Arab merchants, returning from China, introduced it to Genovese sailors. In the 13th century, Pierre de Maricourt studied magnetism and discovered a fundamental law - identical poles repel one another and opposite poles attract one another.
Invented by the Chinese in 2 BC, the compass remained unknown in Europe for a long time afterwards. It was only in 1150, when Arab merchants, returning from China, introduced it to Genovese sailors. In the 13th century, Pierre de Maricourt studied magnetism and discovered a fundamental law - identical poles repel one another and opposite poles attract one another.