Dalton thought that atoms were indivisible particles, and Thomson's discovery of the electron proved the existence of subatomic particles. ... The positive and negative charges cancel producing a neutral atom. images.tutorvista.com. Later discoveries by Rutherford and others lead to additional revisions to atomic theory.
Hydrogen fuel cells is the answer
I believe its the law of inertia
Valleys, waterfalls, flood plains, meanders, and oxbow lakes