George Hart Sculptor/Mathematician Ontario, Canada george@georgehart.com http://georgehart.com As a mathematician and sculptor, I try to show people the fun and creative sides of mathematics. Warped-Grid Jigsaw Puzzles 4:56 2020 https://www.youtube.com/watch?v=Enk4LCnOWiQ A new kind of laser-cut jigsaw puzzles, based on warped grids.