Special relativity

In physics, special relativity (SR, also known as the special theory of relativity or STR) is the generally accepted and experimentally well-confirmed physical theory regarding the relationship between space and time. In Albert Einstein's original pedagogical treatment, it is based on two postulates: 1. * The laws of physics are invariant (i.e. identical) in all inertial systems (non-accelerating frames of reference). 2. * The speed of light in a vacuum is the same for all observers, regardless of the motion of the light source.

Special relativity

In physics, special relativity (SR, also known as the special theory of relativity or STR) is the generally accepted and experimentally well-confirmed physical theory regarding the relationship between space and time. In Albert Einstein's original pedagogical treatment, it is based on two postulates: 1. * The laws of physics are invariant (i.e. identical) in all inertial systems (non-accelerating frames of reference). 2. * The speed of light in a vacuum is the same for all observers, regardless of the motion of the light source.