The pleasure of watching this experiment is that it is pure physics in action. One of the wonders of the natural world is how chaos coalesces into ordered patterns. On the human plane, especially for entrepreneurs and developers, the lesson here is that you have to understand where the viable niches are—where you idea can stabilize at a sustainable frequency—and tune your product into them. The video below not only shows another way to make sound frequency visible, but also how being just off the beat can create an illusion of movement.