
While I was away, my parents bought a bag of strong ball magnets. There's a lot you can do with these. For example, you can peel off a string of magnets and roll it up into a cylinder, or a cone. Or make a pattern. But there's more going on than what you can see. Magnets have a North and South pole, and when they arrange into a string, opposite poles align. If you join two strings parallel, the attraction between then will not be as strong... There's a lot one can think up here. Kind of like ochem.
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