On average, there are as many prime numbers for which the sum of decimal digits is even as prime numbers for which it is odd. This hypothesis, first made in 1968, has recently been proven by ...

Several years ago, I watched a documentary about the fossil of an early amphibian, once encased in a stone nodule. When it was discovered, in Victorian times, five toes were uncovered on each foot, ...

Happy birthday, Einstein! But this is also Pi Day, and a very special Pi Day at that. Why so special? The date is 3/14/15, the first five digits in the ratio of the circumference of a circle to its ...