The Theory of Relativity is made up of two theories: The Theory of General Relativity and the Theory of Special Relativity. The Theory of Special Relativity explains that it is impossible to determine whether you are moving or not without looking at an object. The Theory of General Relativity is the theory that changed the laws of gravity. It states that it is impossible to find a difference between gravity and the force of inertia of a object in movement.

Have you known that? Are you interested in Einstein's studies? Or do you know any interesting facts about him and his career? Share with us in the comments below!

More Info: www.kidsastronomy.com