Study the relative motion effect with this simulation. Simultaneous Events program displays the effect of relative motion on the relative ordering of events in special relativity. In the default scenario two simultaneous events are observed in a stationary reference frame (the Other Frame) and the spacetime diagram of the observation of these events is depicted in another reference frame (the Home Frame). The slider can be used to change the relative speed between the two frames.

Requirements:
* Java

The license of this software is Freeware, you can free download and free use this graphing software.