Okay, so I've been reading about energy and no source seems to make it clear what energy really is. I understand how energy relates to objects in the real world like with moving objects and heated objects, but other forms of energy are more confusing. Firstly, what is electrical energy? I know that electrical energy is carried in an electrical field, but what is it made of? I don't see how energy can be carried by something that isn't really real. Is it waves? If so, where do these waves come from, and where do these waves travel? If the electrical field stretches to infinity, then is the energy stored in an infinitely large place? Also, in nuclear fission, where exactly does the energy come from? I get the whole thing about mass turning into energy, but what part of the atom turns to energy? When a neutron collides with an atom, the products have the same atomic mass as the reactants, so what mass is actually being turned into energy? It's clearly not the protons or neutrons, since those all remain with the fission products, so then is it the electrons being turned into energy?