In the mathematical theory of knots, a Berge knot (named after mathematician John Berge) or doubly primitive knot is any member of a particular family of knots in the 3-sphere. A Berge knot K is defined by the conditions: 1. * K lies on a genus two Heegaard surface S 2. * in each handlebody bound by S, K meets some meridian disc exactly once. John Berge constructed these knots as a way of creating knots with lens space surgeries and classified all the Berge knots. Cameron Gordon conjectured these were the only knots admitting lens space surgeries. This is now known as the . (Wikipedia).
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
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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
Link: https://www.geogebra.org/m/a72HSgzU
From playlist Geometry: Challenge Problems
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
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
How to Tie the Most Useful Knot in the World (Bowline)
This is a short video to help those who have seen many of my past videos where I use a bowline knot. This is the most useful knot you will ever learn. It will not slip when in use, and comes undone easily even after being tightened under thousands of pounds. #NightHawkInLight -~-~~-~~~-~~
From playlist Practical Projects & Skills
Link: https://www.geogebra.org/m/bd69d6u4
From playlist Geometry: Challenge Problems
Eilenberg-Mac Lane Spaces in HoTT - Daniel Licata
Daniel Licata Carnegie Mellon University; Member, School of Mathematics March 13, 2013
From playlist Mathematics
MIT 8.04 Quantum Physics I, Spring 2016 View the complete course: http://ocw.mit.edu/8-04S16 Instructor: Barton Zwiebach License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 8.04 Quantum Physics I, Spring 2016
Thin Matrix Groups - a brief survey of some aspects - Peter Sarnak
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From playlist Mathematics
Secret Japanese Submarine Mission to German-Occupied France
Discover the thrilling true story of the secret underwater mission made by the Japanese submarine I-30 to Lorient U-boat base, France in 1942, the first time Japanese forces entered Europe. Help support my channel: https://www.paypal.me/markfeltonproduction https://www.patreon.com/markfel
From playlist World War I & II U-boats
December 1944: USS Bergall vs IJN Myōkō and Ushio
In December 1944, a US submarine stumbled upon a Japanese heavy cruiser. The brief battle resulted in epic journeys for both. The History Guy recalls an event where the story was as much in what happened after the battle as it was in the battle itself. This is original content based on r
From playlist Submariners
Oleg Lazarev - Simplifying Weinstein Morse functions
June 29, 2018 - This talk was part of the 2018 RTG mini-conference Low-dimensional topology and its interactions with symplectic geometry
From playlist 2018 RTG mini-conference on low-dimensional topology and its interactions with symplectic geometry II
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
Taut co-oriented foliations - Rachel Roberts
Rachel Roberts, WUSTL 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 academic
From playlist Workshop on Flows, Foliations and Contact Structures
Link: https://www.geogebra.org/m/JEk3MHvc
From playlist Geometry: Challenge Problems
When the USS Kitty Hawk collided with a Soviet submarine.
Join our community of fans and supporters! https://thehistoryguyguild.locals.com/ In 1984, during a period of Cold War tension, a Soviet submarine collided with a United States aircraft carrier. The History Guy remembers the 1984 USS Kitty Hawk Collision. This is original content based on
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Lec 7 | MIT 5.111 Principles of Chemical Science, Fall 2005
Hydrogen Atom Wavefunctions (Prof. Sylvia Ceyer) View the complete course: http://ocw.mit.edu/5-111F05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 5.111 Principles of Chemical Science, Fall 2005
Link: https://www.geogebra.org/m/cjS3b6Zr
From playlist Geometry: Challenge Problems