Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to PBS using one of the services below. You've just tried to add this ...

John Conway’s Game of Life, a famous cellular automaton, has been found to have periodic patterns of every possible length. In 1969, the British mathematician John Conway devised a beguilingly simple ...

Here’s a simple number game to play on a rainy day, or while sheltering in place. You and I take turns crossing out numbers from the list {1, 2, 3, …, 9}. The winner is the last person to cross out a ...

During family dinner, we have a tradition. Everyone has to summarize their day by describing three good events and, if necessary, one bad event. When my turn arrived at a recent dinner, I turned to my ...