Below the Natural Science Building at NTNU there is an 11 metre high granite column with a glass ball on the top (map). The weather changes are reflected in the ball, and Trondheim city appears to be standing on its head inside the ball. The glass ball is filled with 500 litres of ethanol and the ball functions as a giant lens. When the sun hits the ball, a focal point is formed by the refracted rays on a plate behind it and a pattern etches into the plate.

Eleven such tin plates are mounted on a wall inside the Natural Science Building. One after the other they will be mounted on the column and all will be etched by the sunlight and reveal the impact of the outdoor climate. Gundersen's sculptures are not static, they work slowly, aided by the forces of nature. REALart solprosjekt