"Humanity has been using knots for thousands of years. They're not that complicated—they're just some string tangled up. Yet you can show people real pictures of knots and ask them for any judgment ...

Engineers at Duke University have successfully manipulated laser beams to create intricate 3D patterns known as 'optical ...

An curved arrow pointing right. Science has shown that your iPhone headphones are conspiring against you to tangle into an impossible knot. There are some preventative measures you can take ...