May is almost here, bringing warmer weather and various holidays, such as Mother's Day, Memorial Day and Cinco de Mayo. While Cinco de Mayo is the most popular reason to celebrate May 5, this year, ...

[MindYourDecisions] presents a Babylonian tablet dating back to around 1800 BC that shows that the hypotenuse of a unit square is the square root of two or 1.41421. How did they know that? We don’t ...