Albert Einstein provided significant and powerful confirmation, in 1905, that atoms and molecules really 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 states that a small mass can generate a fair amount of energy, because mass is multiplied by the speed of light 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, electrons are released. This is why Einstein said that light is made up of individual particles of energy called quanta. He theorized that when quanta hit the metal, the energy from it was transferred to the electrons giving the electrons enough energy to escape the nucleus of the atoms in the metal. One of the other things Einstein is known for is his theory of special relativity. Einstein began to wonder how to solve Newton's laws of motion with Maxwell's light equations. He solves this problem by imagining what the world would look like if he could travel at the speed of light. He began to think that if you moved towards a ray of light as it approached you or if you moved away from a ray of light, the ray of light would still move at exactly the same speed no matter what. The ray of light will always move at the speed of light. It doesn't matter if you are moving towards the light or away from the light, the light will meet you at the same time, no matter what. Einstein therefore concluded that time, length and mass depend on the speed with which we move. In other words, the closer you are to the speed of light, the more difference you see in quantities compared to someone moving