Section K Playing with Natural Phenomena The sun, emitting 3.8 x 1026 watts, is our most powerful source of natural light. With the work Your intuitive sky (2000), Olafur Eliasson evokes the appearance of clouds passing by the sun. With the help of online image streams, Hofstetter Kurt brings dawn and dusk from the 12 time zones into the exhibition space. Patrick Raynaud shows a four-part moon with his object Histoire comique des états et empires de la lune [Weird history of the states and empires of the moon] (1992). Thorbjörn Lausten reconstructs a natural phenomenon: the northern lights or aurora borealis, caused by particles from the solar wind. In his observations, Cerith Wyn Evans shifts the speed of light to the forefront, as does Brigitte Kowanz in an even more concrete way. Peter Weibel's Wind (1975) imitates wind's movement.