A team of scientists from the University of Pennsylvania has developed a tiny robot that catapults itself into the air by dissolving its knot-like structure and moves forward by flying with a rotor ...

Federal Trade Commission Chairman Andrew Ferguson has warned that wedding planning site The Knot Worldwide could be violating federal law as it faces allegations of defrauding small business owners, ...

Master the double overhand knot quickly and easily with this simple tutorial. Perfect for paracord projects, camping, or any DIY and outdoor needs. Leavitt fires back at reporter over question on ...

A knowledge and mastery of tying knots is essential for anyone who spends time in the outdoors. And, sure, when faced with certain tasks that require knot-tying, you might be able to get away with ...

The original version of this story appeared in Quanta Magazine. In 1876, Peter Guthrie Tait set out to measure what he called the “beknottedness” of knots. The Scottish mathematician, whose research ...

The improved clinch knot has long been the standard for tying lures to fishing lines. In fact, it's so universal among anglers that it's sometimes called the fisherman's knot. It's easy to learn, ...

Find a string. Really. Do it. Now twist, tie and tangle it as much as you like. Finally, attach the two loose ends of your string together to make a closed loop. (This is a crucial step.) What you ...

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Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Humans are pretty good at guessing whether a towering stack of dishes in the sink will topple over or where a pool ball will go when a cue hits it. We evolved this kind of physical reasoning to ...