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Animated Knots by Grog

TIE KNOTS THE FUN AND EASY WAY

Better to know a knot and not need it, than need a knot and not know it.

Animated Knots by Grog™

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New Knots Added: Recently we have we added several new knots including: The Stevedore Stopper Knot, The Siberian (Evenk) Hitch, the Soft Shackle and a Better Soft Shackle, Stopper Knot for Dyneema, and a New Rope Sling.

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Research Paper: Our paper showing the Constrictor is the best Surgical Ligature1 has been published. The new Surgical Knots Section shows the technique and also shows standard surgical knots tied from the surgeon's viewpoint.

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Arborist Section: After years of requests from Arborists and other Tree-Climbers, we are pleased to introduce our new Arborist Knots Section – devoted to the essential tree-climbing knots.

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New Download: The January 2014 Desktop Version is available now. Updated to include the new Surgical Knots section, it is fast, advertisement-free, has large-size animation windows, and runs with no internet connection.

Napkins Site

Associated Napkins Website: We are proud to introduce our new sister website Animated Napkins by Grog, which uses our successful animation technique. For the perfect wedding, a formal dinner, or a casual lunch, fold napkins with ease.


Try an interactive demo of our mobile app!


Caution

Safety: Handling rope can be dangerous. Wrongly handled or tied, rope can kill, maim, or burn – maybe you!  Handle rope with care, inspect and test any knot you tie. Respect heavily loaded ropes, e.g., a rope controlling a large sail, a mooring rope when you are docking or berthing, and especially your own climbing rope.

Rope Coil

Control: Beware using your bare hands. Control rope by taking two or more turns round a winch, cleat, or post. Use appropriate equipment for fishing line. The danger associated with heavily loaded lines is too often learned by experience – often very painful and occasionally lethal.

Breaking Rope

Knots Weaken Rope: Angles, kinks, and knots, stress the fibers unevenly and weaken rope. If this concerns you, use stronger rope. Some knots in some ropes have been claimed to only weaken a rope to about 80% of its rated strength; other knots can weaken some rope to as little as 40%. For safety, therefore, assume that even brand new rope will perform at no more than 50% of its rated breaking strength. And, if the rope is old, worn, or damaged by sunlight or chemicals - expect considerably less. For some useful test results visit Tom Moyer's website for: High Strength Cord Testing, Euro Death-Knot Testing, and Rope Gear and Testing.


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This is a free service. If you are you a fire department, rescue group, company, yacht club, school, or scout troop interested in teaching knot tying, the students that you are teaching can see your logo above this website. Visit these pages to see Examples and Instructions.

Reference:
1 Taylor H, Grogono AW. The constrictor knot is the best ligature. Ann R Coll Surg Engl. 2014 (96): 101-105.



RootBizzle Tie Club

Disclaimer: Any activity that involves ropes is potentially hazardous. Lives may be at risk - possibly your own. Considerable attention and effort have been made to ensure that these descriptions are accurate. However, many critical factors cannot be controlled, including: the choice of materials; the age, size, and condition of ropes; and the accuracy with which these descriptions have been followed. No responsibility is accepted for incidents arising from the use of this material.

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Updated March 8, 2014

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