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

One day in August 1917, after Indian troops had fought long and loyally in Mesopotamia against the Turks—Mohammedans against Mohammedans—and in France against the Germans—Aryans against ...

We aren’t sure if [Looking Glass Universe] didn’t trust the accepted number for Planck’s constant, or just wanted the experience of measuring it herself. Either way, she took some LEDs and worked out ...

This story is from Manual, GQ’s flagship newsletter offering useful advice on style, health, and more, four days a week. Sign up here to get it in your inbox. Most runners take pride in detailed ...

It all started one summer lunchtime in 1992 on the terrace outside the CERN cafeteria. If you had happened to be there at the physics research lab near Geneva at the time, you might have overheard ...

Real-time oscilloscopes capture a signal in a single pass, while sampling oscilloscopes, sometimes called digital communication analyzers or equivalent-time sampling oscilloscopes, take multiple ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

A perceived ‘lack of time’ is consistently the most commonly reported barrier to exercise. However, the term fails to capture the multifaceted nature of time-related factors. Recognising the need for ...

Hurricane Melissa strengthens to Category 5, expected to make landfall in Jamaica DHS in Hot Water After Posting Doctored Clip LSU fires coach Brian Kelly in the 4th season of his 10-year, $100 ...

The Fresno Council of Governments (FresnoCOG) Policy Board tabled a contract with an attorney to implement Measure C, Fresno County’s half-cent transportation tax that is currently undergoing a ...

Abstract: Although the time-domain approach to electromagnetic interference evaluation offers numerous advantages, including shorter test duration and multichannel acquisition, its practical adoption ...

The Democratic National Committee (DNC) announced on Thursday that it will help support California’s redistricting ballot measure by directing their organizing team toward mobilization efforts ahead ...