Panasonic / National in Japan has developed a heating carpet using PTC technology (Positive Temperature Coefficient).
In a nutshell, such technology allows the "carpet" to regulate the temperature of the room and save energy. For example, if you want a constant cozy 26 degree Celsius in you room , the carpet will adapt its temperature accordingly. And as it is totally flexible, you can just place it wherever you want, even on non-flat surfaces, like a stair.
But can you put this central heating in a washing machine?
Via Sorobangeek.