So physics is hard. Not because kids are dumb, but because you're basically asked to look at a formula on a whiteboard and just sort of vibe out what a falling object is doing. That's a big ask. Principium is my attempt at fixing that: a physics lab that lives in your browser, built for Norwegian schools and tied straight to the LK20 curriculum. You drag stuff into a scene, mess with gravity and friction and air resistance, hit play, and then you actually watch the thing happen. Energy, vectors, forces, all of it moving in real time instead of sitting still on a page looking smug.

And because I've sat through enough lessons where setup ate half the class, I made it as painless as I could. No installation, no student logins, no accounts, no GDPR headache for the teacher who just wanted to show one demo before lunch. Open a link, you're in. Teachers can build their own scenarios from scratch or grab something from the ready made library and get on with it. Everything is in Norwegian and follows the actual curriculum, so it slots into the lesson you were already going to teach. Simple as that.