Spacetime Diagram

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A spacetime diagram (or Minkowski diagram) is a combination of two coordinate systems: one in which an observer is at rest relative to certain events, and another for an observer in relative motion to the first. In such a diagram, light rays always follow paths with a 45° slope. The time of an event is indicated by its intersection with the appropriate time axis.

Contributed by: Kenny F. Stephens II (March 2011)
Open content licensed under CC BY-NC-SA


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