Science & Technology Museum, University of Patras Campus, Greece
It consists of a shaft on a base and four circular magnets with a hole at the center.
It is used to understand the attraction and repulsion of magnets.
When two magnets are placed close to each other with the same poles (eg, north to north or south to south), a repulsive force will be created between them.
When a north pole and a south pole are placed close to each other, they exert attractive forces on each other.
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