The space-time relations for two different coordinate (relative velocity v)
i.e. Lorentz transformation are
where ?=v/c, ?=(1-?)[sup]-1/2[/sup]
The applet try to show the relations with new presentation.
We define ?=sin?, so ?=1/cos?.
The presentation here is different from Minkowski's presentation.
(in Minkowski's presentation ?=tan?)
However, the scale is the same in both coordinate with this new presentation.
Initially, the applet show length contraction between two coordinates.
Please drag blue arrow to see the relations between two coordinate systems.

VIEW or DOWNLOAD ejs xml source
then click to translate strings for selected locale.

Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop.

Your suggestions are highly appreciated!