See how they cracked the deceptively simple—but brutally tough—problem for 22 "cities." Scientists in Japan have solved a more complex traveling salesman problem than ever before. The previous standard
You may not have realised it, but for a brief time a few days ago, you were no longer inhabiting the Earth. You were actually inhabiting a giant, rapidly spinning sandwich. It all started when 19-year-old
New research shows letting the slowest passengers board first leads to the most efficient boarding overall. Look for the followup study, “How Exasperating Sighs and Eye-Rolling Slow Plane Boarding.” Trying
Understanding math behind knots could lead to some seriously twisted innovation. Color-changing fibers are helping scientists to understand, for the first time, the exact ways some knots hold tighter others.