W hen most people think of shapes, they imagine a triangle, a rectangle, or maybe even a fancier- sounding rhombus or ...

Now, more than 122 years after it was first proposed, Kamata and two other mathematicians have finally proved that a solution ...

At least if your family likes jigsaw puzzles. The idea is very simple, laminate a photograph ... that let you customize the piece count and shapes, and then download the result as an SVG image.