Overhand knot
Type of knot
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Through Staffordshire
46. The overhand is the simplest of the single-strand stopper knots, and is tied with one end around its own standing part, its purpose being to prevent unreeving.
47. The half knot is a binding knot, being the first movement of the reef or square knot. It is tied with two ends around an object and is used when reefing, furling, and tying up parcels, shoestrings, and the like.
48. The half hitch is tied with one end of a rope which is passed around an object and secured to its own standing part with a single hitch.
Tying
There are a number of ways to tie the Overhand knot.
- Thumb method – create a loop and push the working end through the loop with your thumb.
- Overhand method – create a bight, by twisting the hand over at the wrist and sticking your hand in the hole, pinch the working end with your fingers and pull through the loop.
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Heraldry
In heraldry, the overhand knot is known as a "Stafford knot", owing to a representation of it being used first as a heraldic badge by the Earls of Stafford, and later as a general symbol of Staffordshire.
In nature
As a defensive measure, hagfishes, which resemble eels, produce large volumes of thick slime when disturbed. A hagfish can dislodge large quantities of slime on its skin, which it uses to evade predation, by tying its own body into an overhand knot, then sliding the knot from its head down to the tail. This action scrapes the slime off the fish's body. Hagfish also tie their bodies into overhand knots in order to create leverage to rip off chunks of their prey's flesh, but do so "in reverse" (starting at the tail, and sliding the knot towards the head for mechanical advantage).
Knot theory
If the two loose ends of an overhand knot are joined together (without creating additional crossings), this becomes equivalent to the trefoil knot of mathematical knot theory.
In paper-folding
If a flat ribbon or strip is tightly folded into a flattened overhand knot, it assumes a regular pentagonal shape.