84. Explore Sprott’s Fractal Gallery at sprott. physics.wisc.edu/fractals.htm, which features a “Fractal of the Day” and accompanying fractal music. There are various “rooms” in the gallery—including “Iterated Function Systems,” “Natural Fractals” (we particularly like “Broccoli” and “Trees”), and “Publication Quality Attractors” (“SMKBNZQA” is our favorite)— together with PC programs for generating such fractals. What are your favorites, and why?