It’s Just a Matter of Time Interactive Tracebox employs software designed to detect the presence of visitors in proximity to the object. The software tracks the motion and speed of the visitors, and generates shapes that correspond to known particles. Those are projected upon a cube filled with hints of fog. The patterns that appear are influenced not only by the visitors’ movement but also by the density of the fog and the motion of the air inside the cube. To facilitate this, a fan is located inside the wooden box underneath the cube. The visibility of the traces varies according to the viewpoint of the observer.