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

The Washington Office of Superintendent of Public Instruction is pushing back against a recent commentary piece by ...

Designed to provide point-level detection in powders and bulk solids, VRX series vibrating-probe, level sensors feature an ...

And before long, Xu was hearing from hikers and climbers using ... he thought the measure’s most practical application might ...

The Hechinger Report covers one topic: education. Sign up for our newsletters to have stories delivered to your inbox. Consider becoming a member to support our nonprofit journalism. It’s become the ...

Walk back tuning ensures that your bow with stack arrows on the same vertical plane from 5 yards to as far as you care to shoot. Here's how it's done. In the last installment of this series, we got ...

Computer Science and Engineering Ph.D. student Nayan Bhatia demonstrates Pulse-Fi, technology that uses WiFi signals to measure a person's heart rate. Heart rate is one of the most basic and important ...

High school seniors had the worst reading scores since 1992 on a national test, a loss probably related to increases in screen time and the pandemic. Their math scores fell as well. By Dana Goldstein ...

In the world of privately held businesses, success is often measured by growth in revenue, profitability, or market share. While these metrics are important, they don’t always tell the full story of ...

Southwest Airlines on Friday began flying its first jetliner built with a secondary flight deck barrier designed to prevent intrusions in a design change that's been ...