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What is Einstein's invention??? Einstein's theory There are events in the world that have managed to change the face of history, These occurrences are quite different from the moment they occur; these events are milestones that have changed the face of humankind, altered the human concept of things and transformed their perspective. Since the coming of the world Isaac Newton was able to reach the so-called Newton's laws of movement, which prevailed in the world and in beliefs, whether scientific or colloquial that these laws are governing everything in the universe, but the surprise came when the world came Albert Einstein, This is due to the possession of this world of feat genius, which is not described, what reached this world is great in all respects and levels, and since then to this time scientists have been studying the findings of this giant world and study of what has been caused by His fame is (theory of relativity), also Of the other things that deepen it and analyzed this big world. Theory of Relativity The theory of relativity is considered one of the most important and most prominent of the world by Albert Einstein. This theory has been able to change the balances and concepts in the fundamentals underlying physics, the most prominent of which are the concepts of energy, time, space and mass. And physics and space physics moved from one field to another, and they were able to change and transform all the concepts referred to by the world Isaac Newton. Albert Einstein, through the theory of relativity, concluded that all kinds of movements are relative movements, that time is no longer fixed as it was previously assumed, but that it has become an unlimited variable concept in a certain place. In addition, The moving body, which produced what is known as the contraction of time. In addition, through the theory of relativity Einstein was able to combine the concepts of time and space after they were completely separated from one another. The result of all these things is that the way of dealing with the universe as a whole changed, and the outlook changed. In addition to the change in the concepts of classical physics, physics is no longer the same. Relativity has also greatly helped scientists reach many different applications, Commonly used is the GPS application, as well as other uses in cosmology and astrophysics.