Aperiodic tiling: Tile infinite surface without gaps

If you don’t feel like regularly recurring patterns when laying tiles, you have a team of professional and amateur mathematicians to thank for a new option. The men from Great Britain, Canada and the USA have found a tile form with which an infinite surface could be laid out without gaps, without a basic pattern being regularly repeated. Experts call this aperiodic tiling. The tile has 13 corners and, with a little imagination, resembles a hat.