293 Ways to Make Change for a Dollar

The Pythagorean Theorem and its Consequences

Rubik's Snake - Our New Favorite Puzzle

In 1981, Ernő Rubik, hot on the heels of his 1977 smash-hit the Rubik's Cube, invented and released the Rubik's Snake, a very different kind of puzzle. The Snake consists of 24 isosceles triangular prisms, connected by spring bolts. The prisms can't be separated, but they can be twisted, allowing one to form the snake into many different shapes.

National Poetry Month & Mathematics and Statistics Awareness Month

April is not only Mathematics and Statistics Awareness Month, it's also National Poetry Month! To celebrate this union of art and science, the Smithsonian Magazine published [an article](https://www.smithsonianmag.com/science-nature/how-poetry-and-math-intersect-180968869/) all about poets and mathematicians who have brought the two disciplines...