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

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Discover the world of string art with our comprehensive step-by-step guide to creating stunning designs. Whether you're a beginner or a seasoned artist, this video will walk you through the entire ...

An asylum seeker has begged to be sent back to his native Somalia because it is 'not safe' for him to remain in a Midlands town. Nuneaton, in Warwickshire, has become a hotbed of tension after a wave ...

With the energy price cap rising by 2 per cent from October for a typical household, many families will be considering the impact on their finances. Now, a new online calculator has revealed by how ...

This persnickety number determines the strength of magnetic fields. It figures in everything from motors and generators to audio speakers. Oh, and without it we’d live in eternal darkness.

New Jersey’s black bear hunt will continue after a state appeals court rejected a constitutional challenge to the agency that oversees wildlife management. In a decision released Thursday, the ...

As days grow shorter and darker, it’s a good idea to invest in outdoor lights. These popular accessories don’t require any major installation or rewiring, and ...

Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist and mind-body coach in professional sports, and is the author of the book “Practical Solutions for Back ...

But that uncertainty produces others, too: it makes it impossible to calculate an exact age for the universe ... or think of new ways to attack the problem. The Hubble tension, as the discrepancy ...

Air Force planes have to be able to communicate and share data with one another and back to their bases from any environment in the world, including degraded or denied spaces. But that’s just one of ...