How does the magnetic cannon work? 💥 When a steel ball with low initial velocity impacts a magnet followed by another steel ball, the last ball in the... | By Geomagworld | Facebook
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Chagaz'. et vous?: Magicube : les cubes magnétiques de Geomag
Geomag Mab04 - Magicube - Animaux Du Pole Nord - 8 Cubes - Cdiscount Jeux - Jouets