The Universe and Its Constraints

We've come a long way from thinking that the universe and everything in it is made out of four things like earth, wind and fire and water to basically chop up the entire matter of the universe into smaller and smaller bits. And over the last 50 years or so, we have pulled apart matter to reveal its basic constituents. We know that you are made of molecules which are made of atoms which are built out of electrons, protons and neutrons. But there are also weird things that the universe can do, things that don't last for very long, so they take special conditions to reveal them.