Relativity is a physical theory that fundamentally implies that space and time are one. This is absolutely counterintuitive compared to classical physics which considers the two entities to be completely different. Relativity can be divided into two fundamental concepts: special and general relativity. Within Relativity the fundamental concept above all else is that space and time are intertwined together in the universe as a fabric called space-time. Simply put, Special Relativity deals with the laws of Physics when observers all move uniformly relative to each other, while General Relativity expands the idea to include gravitation and acceleration. (Lieber, Lillian R. The Einstein Theory of Relativity. Philadelphia: Paul Dry, 2008. Print. p.95-99) Einstein's theory of special relativity can be divided into two parts: first, it states that the laws of physics are true no matter what reference point you are looking from and secondly the speed of light is constant no matter what reference point you measure it from. This first postulate of Einstein's theory essentially means that the laws of physics do not change depending on the reference point from which they are observed. For example, if you measure how long an object is, it will be the same length whether you are flying on a plane or standing still. (http://science.howstuffworks.com/science-vs-myth/everyday-myths/relativity6.htm) The reason why the speed of light is constant is actually quite simple. Imagine two cars traveling in the same direction at the same speed, the driver of car A has a slingshot while the driver of car B has a laser pointer. At the same time they both fire in the direction of travel. If I were to measure the speed of the projectile that was... in the center of the paper... Ein's Theory of Relativity would radically change our perspective of the universe. It has had a profound impact on the scientific community and has had an everlasting effect on science itself. All the properties of his theories define and shape the world around us, and without them we would have negligible understanding of our universe. Albert Einstein once said, “Any intelligent fool can make things bigger and more complex… It takes a touch of genius and a lot of courage to move in the opposite direction.” This is exactly what he did when the first thoughts about Relativity came to him in a patent office in Switzerland many years ago. Works Cited Lieber, Lillian R. Einstein's Theory of Relativity. Philadelphia: Paul Dry, 2008. Print. Einstein, Albert and Robert W. Lawson. Relativity; the special and general theory. New York: H. Holt e, 1920. 21-25. Press