David Gay: Trisections diagrams and surgery operations on embedded surfaces​
Abstract: Various surgery operations on dimension four begin with a 4-manifold X and an embedded surface S, then remove a neighborhood of S and replace it with something else to produce an interesting new 4-manifold. In a few standard surgery constructions, especially the Gluck twist opera
From playlist Topology
It is used in car steering system. The worm is connected to a steering wheel. The roller reduces friction at contact place. A globoid worm gives better performance than ordinary one. STEP files of this video: http://www.mediafire.com/file/sd5z40fge5pdkpt/GloboidWormRollerSTEP.zip/file In
From playlist Mechanisms
Spinning ring puts surprising twist on familiar physics
Differences in drag cause the ring to switch directions as it wobbles around. Read more http://scim.ag/1FJbRe3
From playlist Materials and technology
A variation on an Ulam Spiral: a Sacks Spiral
Simplicity making complexity. In one word: Emergence. Using the same process as my Ulam Spiral video, https://youtu.be/JjBnLz0SF3A but this time in a Sacks Spiral, https://youtu.be/iFuR97YcSLM?t=6m3s Enjoy. Animation made with FMS Logo.
From playlist Artsy things
Determining clockwise vs counter clockwise rotations
👉 Learn how to rotate a figure and different points about a fixed point. Most often that point or rotation will be the original but it is important to understand that it does not always have to be at the origin. When rotating it is also important to understand the direction that you will
From playlist Transformations
What is the difference between rotating clockwise and counter clockwise
👉 Learn how to rotate a figure and different points about a fixed point. Most often that point or rotation will be the original but it is important to understand that it does not always have to be at the origin. When rotating it is also important to understand the direction that you will
From playlist Transformations
Strata 2012: Jonathan Gluck, "Winner of the Second Heritage Health Progress Prize"
Strata 2012: Jonathan Gluck, "Winner of the Second Heritage Health Progress Prize"
From playlist Strata SC 2012
AWESOME Bicycle wheel gyroscope (science experiments)
Physics (la physique)(science experiments)
From playlist MECHANICS
Hunting Dr. Evil - Hans Kammler: Hitler's Secret Weapons Chief
Hans Kammler was in the every sense the true Dr. Evil - he ran the concentration camp system and was in charge of the special weapons projects, including jet aircraft and V-2 missiles. At war's end, he simply disappeared - did he kill himself, escape or did he work for the Americans? Dr.
From playlist Battle of Germany 1944-45
A 3D animation showing how a Glock 19 firearm works. Cinema 4D was used to create each individual part, as well as animating everything. Substance Painter was used to create the main textures. Corona renderer was used to render everything. My website: https://bit.ly/37D0kNR Voiceover: ht
From playlist How Things Work
Developments in 4-manifold topology arising from a theorem of Donaldson's - John Morgan [2017]
slides for this talk: https://drive.google.com/file/d/1_wHviPab9klzwE4UkCOvVecyopxDsZA3/view?usp=sharing Name: John Morgan Event: Workshop: Geometry of Manifolds Event URL: view webpage Title: Developments in 4-manifold topology arising from a theorem of Donaldson's Date: 2017-10-23 @9:3
From playlist Mathematics
Looking at Euler flows through a contact mirror: Universality, Turing… - Eva Miranda
Workshop on the h-principle and beyond Topic: Looking at Euler flows through a contact mirror: Universality, Turing completeness and undecidability Speaker: Eva Miranda Affiliation: Universitat Politècnica de Catalunya Date: November 1, 2021 The dynamics of an inviscid and incompressible
From playlist Mathematics
Insights into DNA – protamines self-assembly by Yves Lansac
Collective Dynamics of-, on- and around Filaments in Living Cells: Motors, MAPs, TIPs and Tracks DATE: 28 October 2017 to 02 November 2017 VENUE: Ramanujan Lecture Hall, ICTS Bangalore Our knowledge of cytoskeletal filaments, nucleic acid filaments (DNA and RNA) as well as their associat
From playlist Collective Dynamics of-, on- and around Filaments in Living Cells: Motors, MAPs, TIPs and Tracks
ISPS Health at Yale: Improving Healthcare Delivery in America
Jacob Hacker, Zack Cooper, Nina Russell, and Abbe Gluck discuss ISPS Health at Yale, a program of the Institution for Social and Policy Studies. The new initiative draws on faculty from across Yale to carry out policy-relevant research to improve the quality of health care in America.
From playlist The Institution for Social and Policy Studies (ISPS)
B. Rémy - Génération de groupes topologiques simples
Les groupes finis simples sont connus pour être engendrés par des paires d’éléments bien choisies. On peut se poser la même question avec des groupes topologiques : que peut-on espérer comme partie engendrant un sous-groupe dense ? Évidemment, la réponse dépend des groupes considérés ; on
From playlist 70 ans des Annales de l'institut Fourier
How to rotate a triangle counter clockwise 180 degrees
👉 Learn how to rotate a figure and different points about a fixed point. Most often that point or rotation will be the original but it is important to understand that it does not always have to be at the origin. When rotating it is also important to understand the direction that you will
From playlist Transformations
Nancy Blachman - COVID Misinformation Spreads Because People Don't Understand Math - G4G14 Apr 2022
Until recently, the general public could get by without understanding probability and statistics. But that changed with COVID. Now hundreds of thousands of people haven’t gotten vaccinated and are dying because they don’t understand what they hear or read and social media spreads misinform
From playlist G4G14 Videos
Konrad Polthier (7/27/22): Boundary-sensitive Hodge decompositions
Abstract: We provide a theoretical framework for discrete Hodge-type decomposition theorems of piecewise constant vector fields on simplicial surfaces with boundary that is structurally consistent with decomposition results for differential forms on smooth manifolds with boundary. In parti
From playlist Applied Geometry for Data Sciences 2022
Add me on facebook: (Click the LIKE button on facebook to add me) https://www.facebook.com/pages/Brusspup/158773774166995 Gyroscopes are just so cool. The device in this video can be found on science websites. If you've never played with a gyroscope, it's worth buying one. Even when y
From playlist Cool Science Tricks