It's because there are three magnets there, not two: pins in the box are ferromagnetics, which can rearrange their magntic field to always "mirror" the external magnetic field and cancel it. So magnets are always attracted to that kind of metal, no matter their polarity. It they weren't, the fridge magnets couldn't work ;-)
dziękuję, tego mi było trzeba
bodziobran 1 year ago
It's because there are three magnets there, not two: pins in the box are ferromagnetics, which can rearrange their magntic field to always "mirror" the external magnetic field and cancel it. So magnets are always attracted to that kind of metal, no matter their polarity. It they weren't, the fridge magnets couldn't work ;-)
Saskachewan 1 year ago