Albert Einstein's work in physics and mathematics advanced both fields in areas of study such as the manipulation of atomic energy, the exploration of outer space and the basic foundation of knowledge on light. His largest achievements included the quantum theory of light, the special theory of relativity, Brownian motion and the relationship between mass and energy.
Brownian movement helped explain the existence of atoms and molecules by describing the zigzag motion of such particles suspended in air.
The quantum theory of light is a theory in which Einstein argued that light is made up of units of energy called "quanta" or "photons" that exhibit the physical traits of both particles and waves. Using this theory, he also discovered the photoelectric effect in which mass can release photons when struck by light. These theories helped create the television years later.
With the special theory of relativity, Einstein claimed that as long as the universe's natural laws and speed of light stay constant, the observer is relative to motion and time.
The last of Einstein's famous discoveries is the relationship between mass and energy. In one paper, Einstein explained his famous equation E=mc?, which refers to energy equaling mass multiplied by the square of the speed of light.