But, they don't.
Here's a great quotation from one of my favorite authors, Bill Bryson, from "A Short History of Nearly Everything" about the mysteries of the atomic world: There was also the problem of of how protons, with their positive charges, could bundle together inside the nucleus without blowing themselves and the rest of the atom apart. Clearly, whatever was going on down there in the world of the very small was not governed by the laws that applied in the macro world..."
Scientists finally discovered two new forces, the strong and the weak nuclear forces, that explained atomic behavior. But, the more that was discovered, the quirkier the atomic world became. Soon, there would be two sets of laws, one for the world where Newton's laws (like gravity and inertia) govern, and another for the the teeny-tiny universe of the atom. And, they don't play together nicely.
I find this fascinating. Every time we (as in our collective knowledge) think we've figured things out, we just find one more layer of mystery in our world. Our universe is infinitely more complex and puzzling than what our wildest imaginations can conjure. God in His Heaven must be enjoying this!
Paul writes in Colossians 1:17: