[freeqaz]

There was an old Stanford site with some basic interactive tools to visualize "electromagnetic particles". In one of them you would just sling electrons around a neutron and watch their orbits.

I credit it for being one of the reasons I learned to code because it made me think about how cool it was that somebody built that. (I was ~9 years old.)

Now I think I'll have to go finally reimplement that site from memory! I'm sure I can brute force the math with the help of Copilot :P