Various square knots, sliding knots, and surgeon's knots in mono- and multifilament suture material of different diameters were tested with respect to knot strength and knot security. Loop holding ...

Now, using algebraic topology, researchers from the UK have developed a scheme for creating optical vortices in propagating laser fields to form knots and links (Nature Phys. 6, 118–121 ...

You can tie as many butterfly knots into a single line of rope as needed, which is especially handy with multiple climbers on a line of rope. But it's not just useful for climbing. The alpine ...

One of the most important safety procedures that one can do before climbing is tying into the rope and anchor system properly. The knot that is most commonly used for tying into a harness is the ...

Every product was carefully curated by an Esquire editor. We may earn a commission from these links. Here’s how we test products and why you should trust us. Of all of menswear’s many recent ...