Albert Einstein provided significant and powerful confirmation in 1905 that atoms and molecules actually exist through his analysis of Brownian motion. One of Albert Einstein's best-known contributions is the mass energy equivalent equation. The energy equivalence equation is E = MC2 or Energy = Mass x (speed of light)2. This equation indicates that a small mass can generate quite a bit of energy, because the mass is multiplied by the speed of light which is squared. The speed of light in a vacuum is 300,000 kilometers per second. Einstein also contributed greatly to the photoelectric effect. He saw that if you shine a light on a metal, it releases electrons. This is why Einstein said that light is made up of individual particles of energy called quanta. He hypothesized that when the quanta hit the metal, their energy was transferred to the electrons, giving the electrons enough energy to escape from the core of the metal's atoms. One of the other things Einstein is known for is Einstein's theory of special relativity. Einstein began to wonder how to solve Newton's laws of motion with Maxwell's equations of light. He solves this problem by imagining what the world would be like if he could travel at the speed of light. He began to think that if you move toward a ray of light as it approaches you or if you move away from a ray of light, the ray of light would still move at exactly the same speed, no matter what. 'he's coming. The light ray will always travel at the speed of light. It doesn't matter whether you move toward the light or move away from it, the light will meet you at the same time no matter what. Einstein then concluded that time, length and mass depend on the speed at which we move. In other words, the closer you are to the speed of light, the greater the difference you see in quantities compared to someone moving.