Checked content

File:Relativity of Simultaneity.svg


English: This picture illustrates the relativity of simultaneity in Lorentz transformations. The three colored reference frames are associated to three different observers in relative motion along the x axis. Relative to the green observer, the red one is traveling at +0.28c and the blue one at −0.52c.

Event B is simultaneous with A in the green reference frame, but it occurred before in the blue frame, and will occur later in the red frame.

The upper highlighted area is A's future cone, consisting of the events which will occur after A in any reference frame. The lower highlighted area is A's past cone, consisting of the events which occurred before A in any frame. The interior consists of the events from which a massive particle could have reached A, or which can be reached by a massive particle starting at A. The surface of the light cone: the events which can be reached by a light ray starting at A, or from which a light ray reaching A could have originated. The black areas outside the double cone consist of the events whose temporal ordering with respect to A depends on the frame of reference.
Date 12-20-08
Source Derivative work of en:Image:Relativity_of_simultaneity_(colour).png
Author created the original PNG file; Acdx converted it to SVG.


I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.

w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
  • share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.

You may select the license of your choice.
The following pages on Schools Wikipedia link to this image (list may be incomplete):


Schools Wikipedia and SOS Children

Wikipedia for Schools is designed to make learning fun and easy. SOS Childrens Villages helps more than 2 million people across 133 countries around the world. There are many ways to help with SOS Childrens Villages.