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Physics LibreTexts

15: Special Relativity

The phrase “special” relativity deals with the transformations between reference frames that are moving with respect to each other at constant relative velocities. Reference frames that are accelerating or rotating or moving in any manner other than at constant speed in a straight line are included as part of general relativity and are not considered in this chapter.

Thumbnail: Light cone. Image used with permission (Public Domain; Sakurambo).