In 2001, mathematician Jordan... The multistate Powerball lottery jackpot has swelled to $365 million, ... Is Powerball a Mug’s Game? It all depends on when you play—and what value you put on ...

The mathematical concepts involved, circles and radii, are basic ones that have stood the test of time. However, Johnson’s theorem comes up short in the beauty department in one salient respect.

The Stanford mathematician Tadashi Tokieda demonstrates one of his physics “toys”: the curious higher and lower notes you hear when tapping a coffee mug with a spoon. ... Why Different Parts of a ...