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
If you have to do tedious work If you have to stand somewhere doing tedious work, at least make it interesting. Bill Mollison, Introduction to Permaculture Useless work on useful things beautyworkboredom