It looks a little like a fedora, and it's what's known as an "Einstein tile." Meaning, unlike other shapes, if it's laid out and slotted together over and over again, it doesn't easily repeat itself.
The same researchers behind the 13-sided "hat" shape have stumbled upon a version that improves upon the original in a very important way. Reading time 2 minutes In March, a group of mathematicians ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results