No, the theory of electromagnetism and by extension physics in general is knowing how it works. How to use it is engineering, a different set of knowledge which we also have some of.
I think they mean more the difference between what rules it follows and why it follows those rules. It sounds like we know more about the “what” but not much about the “why” for magnets (or any of the fundamental forces).
That’s knowing how to use it, not how it works.
No, the theory of electromagnetism and by extension physics in general is knowing how it works. How to use it is engineering, a different set of knowledge which we also have some of.
I think they mean more the difference between what rules it follows and why it follows those rules. It sounds like we know more about the “what” but not much about the “why” for magnets (or any of the fundamental forces).