I find it beneficial to just keep asking why. Sure, the answer is sometimes "because universe", but asking why (not just how) over and over again helps me build

I find it beneficial to just keep asking why. Sure, the answer is sometimes "because universe", but asking why (not just how) over and over again helps me build my mental model. On that topic... Does anyone have any clue how and why magnetism works? I have a A Level Physics test next week :)