A version of this puzzle originally appeared in the October 1960 issue of Scientific American.

William J. Johnson, currently executive director of high schools, will become assistant superintendent of teaching and ...

Somewhere at the edge of mathematics lurks a number so large that it breaks the very foundations of our understanding - and ...

While sign-ups are above 2024, some states are concerned about higher terminations, fewer new enrollees and more consumer calls for help. If Congress fails again to extend enhanced subsidies in ...

The U.S. government has signed health deals with at least nine African countries, part of its new approach to global health ...

Ancient pottery reveals early farmers were using math thousands of years before numbers, embedding geometry and patterns into ...