Even things we’d likely to perceive as nature, like the trees on the street, are carefully planned and managed and no longer nature. However, the wind blowing through its leaves is. Like footsteps in the sand or ripples on the water, there are still a few natural elements left in the urban environment.

Tree, by Simon Heijdens, is projected onto several facades in the city, including dark corners and alleys. The main location has a 3x8 meter drawing of a tree projected onto the facade of a building. The branches and leaves move slightly, with an intensity that depends on actual wind gusts.

Its leaves are sensitive to sound. For example, a shouting passer-by or car horn, will make a leaf break off the branch. When it falls off the tree, the leaf falls down in another part of the city, projected onto the pavement. Depending on the human traf