In knot theory, a branch of mathematics, a knot or link in the 3-dimensional sphere is called fibered or fibred (sometimes Neuwirth knot in older texts, after ) if there is a 1-parameter family of Seifert surfaces for , where the parameter runs through the points of the unit circle , such that if is not equal to then the intersection of and is exactly . (Wikipedia).
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
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
Unofoil with cogs: http://shpws.me/wk7u Trefoil with cogs: http://shpws.me/wk7H Cinquefoil with cogs: http://shpws.me/wk7t
From playlist 3D printing
This shows some 3d prints of mathematical sculptures I produced using shapeways.com. Knotted cogs of different sizes are available at http://shpws.me/1mTf, http://shpws.me/2LE2, http://shpws.me/Om2 and http://shpws.me/16vT
From playlist 3D printing
Scientists tie tightest knot ever
New molecular knots like this one could mean stronger, more flexible polymers. Learn more: http://scim.ag/2jvPqz5
From playlist Materials and technology
Hello Everyone, today i am going to show you how to crochet this beautiful and easy Braided Stitch. Great for Blankets, Scarfs and Potsholders. Have a great time crocheting ! * Used Yarn : https://www.lovecrafts.com/de-de/p/king-cole-riot-chunky?utm_medium=affiliate&a_aid=a5e26781 * Cro
From playlist Crochet!
Untangling the beautiful math of KNOTS
Visit ► https://brilliant.org/TreforBazett/ to help you learn STEM topics for free, and the first 200 people will get 20% off an annual premium subscription. Check out my MATH MERCH line in collaboration with Beautiful Equations ►https://www.beautifulequation.com/pages/trefor Suppose yo
From playlist Cool Math Series
What's a knot? Geometry Terms and Definitions
A mathematical definition of a knot. Geometer: Louise McCartney Artwork: Kelly Vivanco Director: Michael Harrison Written & Produced by Kimberly Hatch Harrison and Michael Harrison ♦♦♦♦♦♦♦♦♦♦ Ways to support our channel: ► Join our Patreon : https://www.patreon.com/socratica ► Mak
From playlist Socratica: The Geometry Glossary Series
"Illustrating Geometry" exhibition: Artist's talk by Saul Schleimer: "Minimal and Seifert Surfaces"
Slides: http://homepages.warwick.ac.uk/~masgar/Talks/minimal_and_seifert_surfaces.pdf This video is also available at the Simons Center website, at http://scgp.stonybrook.edu/archives/11540 Thanks to Josh Klein for filming and editing.
From playlist 3D printing
Link: https://www.geogebra.org/m/bd69d6u4
From playlist Geometry: Challenge Problems
Kimihiko Motegi: L-space knots in twist families and satellite L-space knots
Abstract: Twisting a knot K in S3 along a disjoint unknot c produces a twist family of knots {Kn} indexed by the integers. Comparing the behaviors of the Seifert genus g(Kn) and the slice genus g4(Kn) under twistings, we prove that if g(Kn)−g4(Kn) [is less than] C for some constant C for i
From playlist Topology
Patrick Popescu Pampu: A proof of Neumann-Wahl Milnor fibre Conjecture via logarithmic...- Lecture 1
HYBRID EVENT Recorded during the meeting "Milnor Fibrations, Degenerations and Deformations from Modern Perspectives" the September 06, 2021 by the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent Find this video and other talks given
From playlist Algebraic and Complex Geometry
Patrick Popescu Pampu: A proof of Neumann-Wahl Milnor fibre Conjecture via logarithmic...- Lecture 2
HYBRID EVENT Recorded during the meeting "Milnor Fibrations, Degenerations and Deformations from Modern Perspectives" the September 07, 2021 by the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent Find this video and other talks given
From playlist Algebraic and Complex Geometry
Patrick Popescu Pampu: A proof of Neumann-Wahl Milnor fibre Conjecture via logarithmic...- Lecture 3
HYBRID EVENT Recorded during the meeting "Milnor Fibrations, Degenerations and Deformations from Modern Perspectives" the September 09, 2021 by the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent Find this video and other talks given
From playlist Algebraic and Complex Geometry
Parallel session 10 by Darren Long
Geometry Topology and Dynamics in Negative Curvature URL: https://www.icts.res.in/program/gtdnc DATES: Monday 02 Aug, 2010 - Saturday 07 Aug, 2010 VENUE : Raman Research Institute, Bangalore DESCRIPTION: This is An ICM Satellite Conference. The conference intends to bring together ma
From playlist Geometry Topology and Dynamics in Negative Curvature
Knot contact homology and partially wrapped Floer homology - Lenhard Ng
Workshop on Homological Mirror Symmetry: Methods and Structures Speaker:Lenhard Ng Title: Knot contact homology and partially wrapped Floer homology Affilation: Duke Date: November 7, 2016 For more vide, visit http://video.ias.edu
From playlist Workshop on Homological Mirror Symmetry: Methods and Structures
Kai Smith: Character Varieties of Tangles and Singular Instanton Homology
Kai Smith, Indiana University Title: Character Varieties of Tangles and Singular Instanton Homology Singular Instanton Homology ($I^\natural$) is a knot homology theory defined by Kronheimer and Mrowka which has been instrumental in proving fundamental facts about Khovanov homology. Unfort
From playlist 39th Annual Geometric Topology Workshop (Online), June 6-8, 2022
Taut foliations and cyclic branched covers - Cameron Gordon
Cameron Gordon, Univ Texas Workshop on Flows, Foliations and Contact Structures 2015-2016 Monday, December 7, 2015 - 08:00 to Friday, December 11, 2015 - 12:00 This workshop is part of the topical program "Geometric Structures on 3-Manifolds" which will take place during the 2015-2016 aca
From playlist Workshop on Flows, Foliations and Contact Structures
Matthew Hedden - Irreducible homology S1xS2's which aren't zero surgeries on a knot
June 20, 2018 - This talk was part of the 2018 RTG mini-conference Low-dimensional topology and its interactions with symplectic geometry I'll discuss constructions of manifolds with the homology of S^1xS^2 which don't arise as Dehn surgery on a knot in S^3. Our examples have weight one
From playlist 2018 RTG mini-conference on low-dimensional topology and its interactions with symplectic geometry I
An embodiment of Oldham coupling. Axial dimenssion is reduced. Cylindrical joints are used instead of prismatic ones. It looks like Cardano coupling but it is not. Inventor files of this video: http://www.mediafire.com/file/vl8yn5h94jvo2ra/OldhamCoupling3Inv.zip STEP files: http://www.med
From playlist Mechanisms