1994 KHD Building, Cologne Germany
Three groups of figures are permanently moving in a hall of 70 m length in the high rise of the Klöckner-Humboldt-Deutz company. Installed are: two rubber bellows in converse movements up and down. A yellow-white arbor, racked 10 m, folded together 2 x 2 m, making a U-turn when folded and is unfolded afterwards. Ten wings in different height underneath the ceiling with gimballed bedding are put into motion when somebody is walking through the hall.