Cutting a bar magnet in half won't get rid of its poles. It'll just produce two magnets, each with a north pole that will be attracted to the other magnet's south pole, and vice versa. It's this ...

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Niron Magnetics aims to use cheap, widely available materials to make magnets for EVs and wind turbines. The motor in your vacuum cleaner and the one in your electric vehicle likely have at least one ...