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=Theory of relativity.=



The theory of relativity have two parts, the general and special relativity. Both of the theory of relativity is has been build upon speed of light. The general relativity talking about speed of light as absolute limit, and the special relativity is talking about the speed vs space vs time.

General relativity as I said before is about the speed of light as absolut limit. After Einstein start to sell his books he find that his theory was diferent from Newton’s understanding of gravity. Einstein prove that Newton's understanding of gravity was wrong. Newton told that gravity is the force that grab the object and move it down. That mean that if the object will disappear the gravity will also disappear immediately. But if nothing can go faster as light of speed that is mean that the gravity will stay there for a some period of time. As example by Newton's view if the sun will disappear he would say that the earth will lose gravity with the sun immediately and earth will immediately will get out the orbit, but Einstein said that even for light it takes 8 minute that get to the earth the gravity also have to be for a some period of time. That meant that if sun will the earth still will be an his orbit for at least 8 minuts. Einstein excely find that gravity move with exectly at speed of light.

.   Einstein sought about the space in embedding diagram view. Then, he is led to the view that the effect of a mass such as the Sun is to curve spacetime.

The special relativity is about the the changing of speed and how it relay to the space and time. The Einstein asked his self a question why the person who move describe the speed of light the same as for a person who stay steel. He has think for a long time that the speed of light is absolute limit. He understand that if speed stay the same something alls have to change. And he find that if speed goes up time goes slower. Also he find that the place is stretches.The fact that time is not constant for every one was so radical that even Einstein did, agree with his at the begining, but after taking time of thinkng he finaly understand that it is absolutely logical. Einstein said that if anybody rich even 90 percent of speed of light the person how did it will radically stretches and time for it person will go slower. He asked his self a question what would happened he will go faster as speed of light. He find that nothing will happened because nobody can ever do that. At the speed of light the time is stop and any object stretches to none.

Time can be constant for diferent people, and he prove it.

The sites that I has been searching: "Theory of relativity - Wikipedia, the free encyclopedia." __Wikipedia, the free encyclopedia__. 1 Feb. 2009 .

"Theory of special relativity." __Theory of special relativity__. 8 Sep. 2007. 29 Jan. 2009 <[|http://www.youtube.com/watch?v=AZ6N85lNgHY&feature=related]

"Theory of general relativity." __Theory of general relativity__. 13 Oct. 2008. 29 Jan. 2009 . .