Thermobakken / Thermoboxes
Insulated boxes are attached at the outside of a building on this single location where the sun shines. They catch the solar radiation.As the temperatures in the boxes increase, the warm air rises along the funnel into the box above. Several digital thermometers show the developments and changes in temperatures on displays.
2001 / Cityjam #2, Hooghuis in Arnhem, NL