Relativity is a theorem formulated by Albert Einstein, which states that space and time are relative, and all motion must be relative to a frame of reference. It is a notion that states’ laws of physics are the same everywhere. This theory is simple but hard to understand.
It states:
- There is no absolute reference frame. One can measure velocity if the object or momentum is only in relation to other objects.
- The speed of light is constant irrespective of who measures it or how fast the person measuring it is moving.
Albert Einstein’s Theory of Relativity encompasses two theories: Special Relativity Theory and General Relativity Theory.

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