Photons, electrons, atoms, molecules, and so on all have microscopic properties that can be explained by the principles of quantum mechanics. It deals with microscopic particles. It is based on the Schrodinger equation.
There is electricity everywhere. Most of our daily activities need the use of this device. Nevertheless, we probably don't give the folks who made this possible much thought. While Thomas Edison gets credit for developing the light bulb, Nikola Tesla is often credited with actually turning it on. Whose innovations garnered him almost 300 patents.