Link: https://www.geogebra.org/m/a72HSgzU
From playlist Geometry: Challenge Problems
Rotation transmission between parallel shafts, one can move. The key factor is: 4 belt branches connecting to the green and blue pulleys must be parallel. It uses rope and flat belts, not V-belts. Inventor files of this video: http://www.mediafire.com/file/92mo39k7kqkgzde/BeltDrive8Inv.z
From playlist Mechanisms
Spring toggle mechanism enables to reach end positions of a lever quickly and holds it there firmly. The pink double crank represents action from outside.
From playlist Mechanisms
It is a constant velocity joint. There is a spherical joint between pink shaft and green one. For each shaft the opposite contact straight lines must be symmetric about the rotary axis and have a common intersection point with it. Angle between the two shafts reaches up to 30 deg. in this
From playlist Mechanisms
Tight or release orange nut for clamping or repositioning green bar.
From playlist Mechanisms
What is the Definition of Congruent Triangles - Congruent Triangles
👉 Learn about congruent triangles theorems. Two or more triangles (or polygons) are said to be congruent if they have the same shape and size. There are many methods to determine whether two triangles are congruent. Some of the methods include: (1) The SSS (Side Side Side) congruency the
From playlist Congruent Triangles
Determining if Two Triangles are Congruent by Plotting Points
👉 Learn how to show whether two triangles are congruent from the coordinate (x-y) plane. Two or more triangles are said to be congruent if they have the same shape and size. To show whether two triangles whose points on the coordinate plane are given we first plot the points on the coordin
From playlist Congruent Triangles
Ellie Baker - Crafts, Math, and the Joy of Turning Things Inside Out - CoM Apr 2021
Infinitely Invertible Infinity paper: http://archive.bridgesmathart.org/2020/bridges2020-83.pdf Invertible Infinity: A Toroidal Fashion Statement paper: http://archive.bridgesmathart.org/2017/bridges2017-49.pdf Trefoil knotted scarf with hidden seams: http://www.ellie-baker.com/shared-st
From playlist Celebration of Mind 2021
Two toggle links (the green and blue ones) can come into toggle by lining up on top of each other rather than as an extension of each other. STEP files of this video: http://www.mediafire.com/file/wip27b251l6d46g/Toggle1bSTEP.zip Inventor files: http://www.mediafire.com/file/7vvezsssvfvkh2
From playlist Mechanisms
Heegaard Floer homology and the knot concordance group - Jennifer Hom
Short Talks by Postdoctoral Members Jennifer Hom - September 22, 2015 http://www.math.ias.edu/calendar/event/88184/1442946600/1442947500 More videos on http://video.ias.edu
From playlist Short Talks by Postdoctoral Members
On Bennequin Type Inequality for Symplectic Caps of (S3,ξstd). - Anubhav Mukherjee
Joint IAS/Princeton University Symplectic Geometry Seminar Topic: On Bennequin Type Inequality for Symplectic Caps of (S3,ξstd) Speaker: Anubhav Mukherjee Affiliation: Princeton University Date: March 06, 2023 In this talk I will discuss a Bennequin type inequality for symplectic caps
From playlist Mathematics
SHOP TIPS #237 Threading W/O a Dial on Atlas/Craftsman 12" Lathe tubalcain
There are 19 videos in this series on the ATLAS/CRAFTSMAN 12" Lathe. Be sure and watch them all. Tips #220 thru #239
From playlist #3 MACHINE SHOP TIPS tubalcain playlist #201 thru #300
Toogle clamp using four bar linkage. Green conrod and pink lever come into toggle by lining up on top of each other. The clamping force is applied to the conrod.
From playlist Mechanisms
MACHINE SHOP TIPS #17 Threading to Shoulder tubalcain
Tubalcain shows how to thread up to the chuck or shoulder the safe way. UPSIDE DOWN. I'm threading white DELRIN plastic to speed things up.
From playlist #1 MACHINE SHOP TIPS tubalcain playlist #1 thru #100
Erica Flapan (9/18/18): Topological and geometric symmetries of molecular structures
How does a chemist know that a molecule that he or she has synthesized has the desired form? Most non-biological molecules are too small to see in a microscope or even with the help of an electron micrograph. So chemists need to collect experimental data as evidence that a synthetic mole
From playlist AATRN 2018
SHOP TIPS #227 Cutting a Metric Thread Atlas Lathe Pt 2 tubalcain
There are 17 videos in this series on the ATLAS/CRAFTSMAN 12" Lathe. Be sure and watch them all. Tips #220 thru #236
From playlist #3 MACHINE SHOP TIPS tubalcain playlist #201 thru #300
Ian Agol, Lecture 1: Volumes of Hyperbolic 3-Manifolds
24th Workshop in Geometric Topology, Calvin College, June 28, 2007
From playlist Ian Agol: 24th Workshop in Geometric Topology
You can see the live demo here https://codepen.io/thebabydino/pen/eGBZeQ/ Pure CSS. Tested and works fully in Chrome, probably in Safari as well (let me know). Firefox doesn't support using calc() in hsl() (meta bug https://bugzilla.mozilla.org/show_bug.cgi?id=1376206), so, while the motio
From playlist CSS 3D
Overview of Knots and Motivation of Quandels by Mohamed Elhamdadi
PROGRAM KNOTS THROUGH WEB (ONLINE) ORGANIZERS: Rama Mishra, Madeti Prabhakar, and Mahender Singh DATE & TIME: 24 August 2020 to 28 August 2020 VENUE: Online Due to the ongoing COVID-19 pandemic, the original program has been canceled. However, the meeting will be conducted through onl
From playlist Knots Through Web (Online)
Mechanical Engineering: Ch 11: Friction (32 of 47) Belt Friction: Ex. 1
Visit http://ilectureonline.com for more math and science lectures! In this video I will find the tensions of the belt wrapped 2 times around a drum when T=1000N is applied to one end of the belt with frictions=0.2, 0.4, 0.8. Next video in this series can be seen at: https://youtu.be/YbI
From playlist MECHANICAL ENGINEERING 11 FRICTION