BILL – Never-ending plane in the sky by Emmanuel Le Cerf

Created by Emmanuel Le Cerf, BILL is a simple paper bill, one piece of material supposed designed to last the long-term, which gets turned into a never ending animation. Originally white, this paper becomes blue when touched by heat. If over-exposed to heat, the paper is totally blue. If a new heat comes close to the blue paper, it lets a white and ephemeral mark.