Library of Subatomic Particles - The Proton

Product Description

All matter is made of atoms and combinations of atoms called molecules. That statement may not seem surprising to you, but as recently as the beginning of the last century, serious scientists were still looking for proof that atoms and molecules existed. Atomic theory explained a lot about chemistry, but is was not until 1905 that Albert Einstein pointed out that the jiggling movement of dust particles in fluids, known as Brownian motion, was exactly what would be expected if tiny gas molecules were constantly bounding off them.