<--- Trimpin Seismophone Musical Sculpture above the cafeteria

According to their website: “Suspended from the Atrium of the Science Museum of Minnesota, within a 45-foot ceiling, this large musical sculpture brings sight and sound experiences of geologic events - seismic activities or earthquakes - at nearly the moment that they occur around the globe.”

Personally I think it sounds a lot like arrhythmic chimes, but of course no one ever said that seismic activity is always rhythmic and predictable.