Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Asking students to explain how they arrived at an answer is a powerful strategy for making a concept more memorable.

As a former councilmember and mayor of the city of San Mateo, I advocated strenuously — and successfully — for an increase in ...

Opinion polls point to a fifth SNP victory - but a lot could change in six months with parties working flat out for votes.

The 2026 NFL Draft will be the source of a lot of hope for a lot of programs. When the order is finalized, several teams will ...

World leaders warned Thursday that time is running short for urgent and decisive action to prevent the worst effects of climate change, and blasted the United ...

DeepMind’s AlphaEvolve helps solve a math puzzle with Terence Tao, showing how AI can now invent new ideas—and prove old ones ...

The tallest man to ever live was Robert Wadlow, who reached a staggering 2.72m. That's equal to a very large male ostrich or Shaquille O'Neal with two bowling pins balanced on his head.

Physics can feel inscrutable to students; this lesson helps them understand a graphing problem by analyzing their own ...

On The Southern Outdoorsman, hosts Andrew Maxwell and Jacob Myers press Dixon on the “why you never see him” problem. Their ...

Streams of liquid form drops thanks to unidentified disturbances. It could be the jiggling of individual molecules.