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Revision as of 06:08, 5 February 2002
Both length and velocity are measured in knots; in the former case, it is equivalent to a Nautical mile; in the latter, to a Nautical mile per hour.
A knot may consist of a length of one or more ropes, cord, twine, string, strap or even chain interweaved so as to create in the line the ability to bind to itself or to some other object. Some knots are well adapted to bind to particular objects such as another rope, load, cleat, ring, stake or to constrict an object. Decorative knots usually bind to themselves to produce attractive patterns.
Knots have been the subject of interest both for their ancient history, common use or their mathematical implications.
Knots are essential in many industrial, work, home or recreational activities. Truckers need to tie down a load and will use a Trucker's hitch, gaining a 2-to-1 mechanical advantage. Are you spelunking, having foolishly but voluntarily buried yourself pre-maturely under millions of tons of rock? What ever the activity, on the water sailing or on a cliff-side rock climbing. Learning well tested knots prior to some hazardous activity introduces a critical measure of safety. Even simple activities such as running a load from the hardware store to home can result in disaster if a clumsy twist in a cord passes for a knot.
Besides safety, using the appropriate knot can also save having to cut a line unnecessarily.
The list of knots is extensive but there are some general properties common to the various knot categories. For example, loop knots share the attribute of having some kind of an anchor point tied on the standing end (such as a loop or overhand knot) into which the working end is easily hitched to using a round turn). Constricting knots often rely on friction to cinch down tight on loose bundles.
Knots may span multiple categories of knot:
Some useful terms pertinent to the tieing of knots are standing end, working end, bight, loop and elbow.
Some knots have multiple names. For example the overhand is also known as the thumb knot. The Constrictor Knot, the Bag Knot, the Miller's Knot are all the same knot.
Alphabetical List of knots
The variant knot names should be included in the list with links to the most formal name.
- adjustible bend
- adjustible hitch
- adjustible loop
- albright knot
- alpine butterfly bend
- alpine butterfly loop
- alpine coil
- alternate ring hitching
- anchor bend
- anchor bend
- angler's knot
- angler's loop
- arbor knot
- artillery loop
- asher's equalizer
- ashley's stopper knot
- bachmann knot
- bachmann knot
- bag knot
- bait loop
- bale sling hitch
- barrel knot
- becket hitch
- bimini twist
- binder's knot
- blackwall hitch
- blake's hitch
- blood knot
- blood loop dropper knot
- boa knot
- boas bowline
- boom hitch
- bottle sling
- bow knot
- bowline on bight
- bowline
- bowstring knot
- braid knot
- brummycham bowline
- buffer knot
- builder's knot
- buntline hitch
- butterfly knot
- carrick bend
- carrick mat
- cat's paw
- caver's helical knot
- chain hitch
- chain stitch lashing
- chi-fi knot
- chinese cross knot
- chinese good luck knot
- chinese lanyard knot
- clinging clara
- clove hitch
- constrictor knot
- continuous ring hitching
- cow hitch
- cross-prusik knot
- crossing knot
- diamond hitch
- diamond knot
- double bowline
- double carrick bend
- double chain
- double chain
- double figure eight bend
- double figure eight
- double friction hitch
- double grinner knot
- double harness bend with parallel ends
- double overhand
- double ring hitching
- double sheet bend
- double stopper
- double uni knot
- draw kot
- dropper loop
- duncan loop
- dutch marine bowline
- dutra double loop knot
- englishman's knot
- eskimo bowline
- eye splice
- farmer's knot
- figure eight coil
- figure eight follow through
- figure eight hitch
- figure eight knot
- figure eight loop
- figure eight
- figure-of-eight coil
- fireman's chair knot
- fireman's coil
- fisherman's bend
- fisherman's eye
- fisherman's knot
- flemish bend
- flemish knot
- four-strand braid
- four-strand plait
- french bowline
- french prusik knot
- frost knot
- gaff topsail halyard bend
- good luck knot
- granny knot
- grief knot
- grinner knot
- ground-line hitch
- half blood knot
- half hitching
- half hitch
- halibut knot
- halter hitch
- halyard bend
- handcuff knot
- hangman's noose
- harness bend
- heaving line bend
- heaving line knot
- hedden knot
- hight post hitch
- highwayman's hitch
- hitching tie
- hunter's bend
- icicle hitch
- improved clinch knot
- italian hitch
- jamming hitch
- jansik special
- japanese crown knot
- japanese success knot
- jar sling
- jug sling
- killick hitch
- klemheist knot
- knife lanyard knot
- kreutzklem knot
- lariat loop
- lark's foot
- lark's head
- lineman's loop
- machard tresse
- magnus hitch
- major turle's knot
- marline hitching
- marlinespike hitch
- midshipman's hitch
- miller's knot
- monkey's fist
- mooring hitch
- munster hitch
- munter friction hitch
- nail knot
- orvis knot
- ossel hitch
- ossel knot
- overhand knot
- oysterman's stopper
- painter's hitch
- palomar knot
- perfection loop
- pile hitch
- pitzen
- plank sling
- portuguese bowline
- prusik knot
- racking bend
- reef knot
- ring knot
- ringbolt hitching
- rolling hitch
- round hitch
- round turn
- running knot
- sailor's knot
- savoy knot
- sheep shank
- sheet bend
- sheet bend
- simple chain
- simple noose
- simple simon over
- simple simon under
- single hitch
- single stopper
- slip knot
- slippery hitch
- slippery round hitch
- spanish bowline
- splice
- square knot
- stevedor's knot
- strop bend
- surgeon's end loop
- surgeon's knot
- taut-line knot
- thief knot
- three quarter figure eight loop
- three-strand braid
- thumb knot
- tiller's hitch
- timber hitch
- tom fool's knot
- transom knot
- trilene knot
- triple bowline
- triple figure eight
- trucker's hitch
- true lover's knot
- tug boat hitch
- two half hitches
- two-strand braid
- underhand loop hitching
- uni knot
- valdotain tresse
- water bowline
- water knot
- waterman's knot
- wrapped and reef knotted coil
- yosemite bowline
- zepplin bowline
- zigzag braid
descriptions and tying instructions should be added
See also: Scouting
In knot theory, a knot is an embedding of a circle in 3-D space, considered up to deformations (isotopies). This is basically equivalent to a conventional knot with the ends of the string tied together to prevent it from becoming undone. In higher dimensions, circles are unknotted anyways, so one considers embeddings of spheres and hyperspheres.