The Importance of Transparency

We're talking about transparency, and when you put a bunch of atoms together in the material, they form this kind of extended fuzzy cloud of electrons that might block light or not. So whether a photon gets through that depends on its energy. If it has the energy that the electrons in that material like, then it gets it going to get absorbed,. And not go through it. The picture of the energy levels is different from a single atom than with the grid of atoms. We discovered that there are these gaps in the energy levels. It's not like any possible energy level is allowed for an electron in these materials. Those people are probably rich from stealing bang balls and things like that.