Double torus knots and links

74 knot

In mathematical knot theory, 74 is the name of a 7-crossing knot which can be visually depicted in a highly-symmetric form, and so appears in the symbolism and/or artistic ornamentation of various cultures. (Wikipedia).

74 knot
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The Best Guide to Rope Skills

This step by step guide demonstrates tying 15 types: 00:36 Overhand 01:22 Square 02:36 Figure Eight 03:40 Bowline, 05:29 Running 06:19 Half, 07:45 Timber, 09:42 Rolling, 10:43 Clove Hitches 11:30 Cat's Paw 12:58 Single, 14:40 Double Sheet or Becket Bends 15:30 Fisherman's, 17:09 Doubl

From playlist How To Tutorials

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1,701,936 unique knots (and counting) #megafavnumbers

#megafavnumbers Talking about my favorite number over 1,000,000. We currently know about the first 1,701,936 different kinds of knots. There are a lot of math youtubers making high-quality, well-edited videos about their favorite big number. This...might not be one off them. The two times

From playlist MegaFavNumbers

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Awesome Number Pattern 3

A number pattern built from the number 76923

From playlist Number Patterns

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Cut The Knot Action 12!


From playlist Geometry: Challenge Problems

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How to Tie a Taut Line Knot

This knot is very useful for adjusting tie downs quickly and easily. For example, a tarp could be held down by a series of these knots and be made very tight so the wind cannot make it rise, and easily be removed simply by sliding the knots later. A taut line knot is also used to keep larg

From playlist Practical Projects & Skills

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L05 clothdyes

From playlist STAT 503

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FCM 708 HW 3 pt 2

From playlist 708 hw 3

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Available at

From playlist Dice

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Non-Orientable Knot Genus and the Jones Polynomial - Efstratia Kalfagianni

Efstratia Kalfagianni Michigan State University October 20, 2015 The non-orientable genus (a.k.a crosscap number) of a knot is the smallest genus over all non-orientable surfaces spanned by the knot. In this talk, I’ll describe joint

From playlist Geometric Structures on 3-manifolds

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Rebekah Palmer: Totally Geodesic Surfaces in Knot Complements with Small Crossing Number

Rebekah Palmer, Temple University Title: Totally Geodesic Surfaces in Knot Complements with Small Crossing Number Studying totally geodesic surfaces has been essential in understanding the geometry and topology of hyperbolic 3-manifolds. Recently, Bader-Fisher-Miller-Stover showed that con

From playlist 39th Annual Geometric Topology Workshop (Online), June 6-8, 2022

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The Fastest Ship in the U.S. Navy: Boeing Pegasus-Class Hydrofoils

The Boeing built hydrofoils named after Tucumcari, New Mexico, the design basis for the technology used in the subsequent United States Pegasus-class patrol boats and the Jet-foil ferries. Its unique feature was a water-jet propulsion and a computer-controlled fully submerged foil configur

From playlist Mechanical Engineering

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WW2 Submarine Still In Service

The truly remarkable story of the WWII submarine that is still serving in 2018, 74 years after being built! Amazing but true.

From playlist World War I & II U-boats

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Tangles, Bangles and Knots with John Conway [2012]

John Conway is a prolific mathematician who researches the theory of finite groups, knot theory, number theory, combinatorial game theory and coding theory. He has also contributed to many branches of recreational mathematics, notably the invention of the cellular automaton called the Game

From playlist Mathematics

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This the first of 9 videos on the SOUTH BEND 9" LATHE. They are all related to cleaning, inspecting, and lubricating America's favorite lathe. I have many videos regarding SB lathes. Here are a few that are particularly applicable to this video. Making a Belt Guard for a South Bend 9" Lath

From playlist #4 MACHINE SHOP TIPS tubalcain playlist #301 thru #400

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András Stipsicz, Lecture 2: Knot Floer homology

35th Workshop in Geometric Topology, Calvin College, June 15, 2018

From playlist András Stipsicz: 35th Workshop in Geometric Topology

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Numberphile - Still Untitled: The Adam Savage Project - 11/5/19

We have a special guest this week: Brady Haran, creator of the YouTube channel Numberphile! We welcome Brady to the cave and talk about the origin of Numberphile--along with Brady's other channels--his video making process, and some of his favorite Numerphile episodes. Watch Numberphile

From playlist The Adam Savage Project

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EEVblog #211 - IET Decade Resistance Substitution Box

What's inside a $500 commercial decade resistance substitution box from IET Labs? Dave's about to find out.

From playlist Product Reviews & Teardowns

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Knots with cogs

Unofoil with cogs: Trefoil with cogs: Cinquefoil with cogs:

From playlist 3D printing

Related pages

Unicursal hexagram | Knot theory