If you buy something using links in our stories, we may earn a commission. Learn more. A few minutes into a 2018 talk at the University of Michigan, Ian Tobasco picked up a large piece of paper and ...

Creatively tiling a bathroom floor isn’t just a stressful task for DIY home renovators. It is also one of the hardest problems in mathematics. For centuries, experts have been studying the special ...

And it all began with a hobbyist “messing about and experimenting with shapes.” An “aperiodic monotile,” or einstein, is a shape that tiles an infinite flat surface in a nonrepeating pattern. The ...