Hiding Images in Plain Sight An Article by Matt Ferraro mattferraro.dev I recently made a physical object that defies all intuition. It's a square of acrylic, smooth on both sides, totally transparent. A tiny window. But it has the magic property that if you shine a flashlight on it, it forms an image. caustics
The versatility of flat surfaces The versatility of flat surfaces is not commonly seen in nature. David Pye, The Nature and Aesthetics of Design Deep InterlockThe works of God