Intervall by etezak from germany

Seven lampshades in different materials yet in the same shape interact with each other as comparable elements. They include cast bronze, porcelain and clay; metal-spinned copper, aluminium and brass; and hand-blown glass. By switching the lamp on or off one sets the lampshades in swaying motion, which causes a chime. Each shade behaves differently according to its weight and its ability to oscillate. The light fades on and out by sensoring the individual movement of the lamps.