But until that lesson, I had never actually thought about why ice cubes are shaped that way. Is everyone secretly building ...

Going out on a limb, I’m betting that you don’t know what the Hasse–Minkowski local-global principle for quadratic forms is. Don’t worry. That makes four of us—you three who read this ...

Because even ice has a backstory—and this one will send a chill down your spine (literally). Here's what you need to know.

#49 Squares and cubes. Set by Howard Williams. Take two positive whole numbers that are both less than 20. The difference in the squares of these numbers is a perfect cube and the difference in ...

If your knowledge of cubing begins and ends with the classic 3-square x 3-square Rubik’s cube, you’d be amazed to discover the array of cube types on the market.