This "simple" nail puzzle has kept me amused for hours

I was at Maker Faire Bay Area this weekend. One of my favorite things was a collection of simple handmade puzzles sitting on a table under an umbrella, away from the action. A Russian woman named Tatiana Ginzburg told me that the puzzles were part of some kind of mind enlightenment group she started. When … Continue reading This “simple” nail puzzle has kept me amused for hours