Concrete that Changes Colour

Chronos Chromos is concrete which is capable of changing colour. It can be used for displaying information on walls or the floor. The information can dynamically be changed as needed to give readouts, time or what ever takes your fancy. The product is not quite available yet, but you can register your interest over at ChromaStone.

I like the idea of concrete with some kind of feature that can change its colour. Hopefully something will come of this idea.