Analyze the time dilation effect with this simulation. Twin Paradox program displays the effect of time dilation on a moving twin as seen from a stationary twin. In the default scenario the light signals sent from the moving twin are depicted using a spacetime diagram and are shown as seen in the stationary twin's reference frame (the Home Frame). The sliders can be used to change the twin's trip distance and her trip speed relative to the stationary twin.

Requirements:
* Java

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