This winter MIR is a guest at the Wageningen Unversity & Research site. Two visual artists will each fulfil a two-month working period; both artists have a link with science. Lenneke van der Goot will make a floor drawing with her homemade green algae chalk. Due to the unstable pigments in the algae; the drawing will discolour over time. Algae from WUR’s AlgaePARC form the basis of Lenneke van der Goot’s home-made chalk. It shows the movement of construction and the inevitable decline. Her chalk objects wear out when making a floor drawing, in which different algae types determine the colors. These pigments are unstable, so  the initial intensity fades with the passage of time. The work in progress is constantly transforming and eventually decays.