The alpine butterfly knot is more than just a pretty name for an ingenious loop with multiple uses. Here’s how to tie our favorite knot in five quick steps.

The seldom-used alpine butterfly knot has long been considered the gold standard for climbers when tying into the middle of the rope. Prestigious guide services and hallowed tomes like Mountaineering: ...

There’s an old saying: “If you don’t know a knot, tie a lot.” It’s funny advice, really. Outdoor sports enthusiasts should know lots of knots, but we should know how to tie them correctly every time.

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When it comes to climbing, don’t underestimate the power of a well-tied knot. The importance of knots in climbing for both safety and efficiency can’t be overstated. The best climbers are those that ...

Experiments with psychedelic, colour-changing fibres and spaghetti might sound more akin to child's play than to serious scientific research, but a team of mathematicians and engineers at ...