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

A ratio of debt to equity is calculated by dividing total debt by the amount of shareholders' equity, found near the bottom ...

The S&P 500 is highly concentrated in the Mag 7, making diversification beyond Big Tech increasingly attractive for long-term ...

Watch our exclusive subscriber Q&A with leading GP and Daily Mail columnist Dr Martin Scurr. Your browser does not support iframes. Dr Scurr's distinguished career ...

Through a Summer Undergraduate Research Fellowship, Jenny Quan is exploring the mathematical principles behind Rubik's cubes.

It's a well-known fact that quantum calculations are difficult, but one would think that quantum computers would facilitate the process. In most cases, this is true.

The pop star's new album now boasts the biggest opening week for any LP in the modern era. By Hannah Dailey Taylor Swift is taking a bow after outdoing everyone — including herself — on the Billboard ...

The New York Times' latest game, Pips, brings domino fun to your desktop. How to play Pips as well as hints in case you get ...

An MP has demanded Digital IDs be scrapped, warning they will not "solve Britain's immigration crisis", after thousands of Shropshire residents signed a petition opposing plans. More than 4,800 ...

Optical illusion puzzles have been there for centuries and these are fun challenges that are designed to play tricks on our eyes and brains. Optical illusions work on a simple principle where it ...

Ruben Amorim may be fighting to save his job at Old Trafford but the Manchester United boss is nevertheless still planning for the future and even drawing up plans for the next two transfer windows. A ...

Artificial intelligence is helping health-care providers better assess their patients’ discomfort. For years at Orchard Care Homes, a 23‑facility dementia-care chain in northern England, Cheryl Baird ...