Mar 31, 2023
"Einstein Tile" mystery solved: amateur mathematician discovers unique 13-sided "hat" Mathematicians have long wondered if there was an "einstein tile" – a tile that could be used only to make a non-repeating pattern on an infinite surface. An amateur mathematician named David Smith recently developed a 13-sided tile, nicknamed "the hat," that fits the bill. — Read the rest https://boingboing.net/2023/03/31/einstein-tile-mystery-solved-amateur-mathematician-discovers-unique-13-sided-hat.html