Hi, I've been doing rotational mechanics at school and at the end of the chapter,the parallel and perpendicular axis theorems appear to have sprung out of nowhere! The proofs are given in the book but somehow, they don't make any sense. I can't understand their implications in the real physical world,their origin,their logical meaning. I mean,there must be something more to these theorems rather than only their mathematical proofs! Please would someone guide me?