Thanks very helpful, the angles being signatures to help determine what forced/objects are involved makes a lot more sense to me now. That's always been something I've struggled with in biology/chemistry and physics is the higher level abstractions used to infer smaller phenomenons that are not as easily observable.

I'm too used to compsci where it's more explicit and every "but why?" doesn't lead you down a Wikipedia rabbit hole.

Edit: that cloud chamber video is very cool!