Relativity based on symmetry
In this chapter, we will derive the Lorentz transformations without assuming the constancy of the speed of light. We will use only the principle of special relativity and the symmetry associated with it. We will see that this principle allows only Galilean or Lorentz space-time transformations between two inertial systems. In the case of the Lorentz transformations, we obtain the conservation of an interval and a certain speed. From known experiments, this speed iscthe speed of light in a vacuum.
KeywordsRelative Velocity Special Relativity Relativistic Dynamic Inertial System Admissible Velocity
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