Lie groups | Discrete groups | Combinatorics on words | Lemmas in group theory
In mathematics, the ping-pong lemma, or table-tennis lemma, is any of several mathematical statements that ensure that several elements in a group acting on a set freely generates a free subgroup of that group. (Wikipedia).
THE 1994 SINGLE TAKEN FROM THE ALBUM MARS AUDIAC QUINTET
From playlist the absolute best of stereolab
A water-filled ping pong ball collides with a water balloon at approximately 25 m/s. The inelastic collision dramatically deforms the water balloon. The ping pong ball weighs 0.033 kg and is propelled by a Toro leaf blower; the water balloon is 3.36 kg and is suspended by a single string.
From playlist Newtonian Mechanics
PHYS 101 | Trajectories 3 - Intro Beer Pong
From playlist Trajectories
Discrete groups in complex hyperbolic geometry (Lecture - 2) by Pierre Will
Geometry, Groups and Dynamics (GGD) - 2017 DATE: 06 November 2017 to 24 November 2017 VENUE: Ramanujan Lecture Hall, ICTS, Bengaluru The program focuses on geometry, dynamical systems and group actions. Topics are chosen to cover the modern aspects of these areas in which research has b
From playlist Geometry, Groups and Dynamics (GGD) - 2017
Ian Runnels: Effectively Generating RAAGs in MCGs
Abstract : Given a (mostly arbitrary) collection of mapping classes on a surface S, we find an explicit constant N such that their Nth powers generate a right-angled Artin subgroup of the mapping class group MCG(S). CIRM VIRTUAL EVENT Recorded during the meeting"Virtual Geometric Group
From playlist Virtual Conference
How to fix a ping pong table tennis ball and remove the dent
How to fix the dent in a pingpong ball. Simply put the ball in a glass of hot water for 10 seconds.
From playlist Fun Science Episodes
From playlist Communications & Network Systems
Robot hand moves a ping pong ball
Stanford researchers developed the skin-like touch sensors that enable this robotic hand to deliver just the right amount of pressure to lift and move a ping pong ball without crushing it. In this demonstration they programmed the hand. One day they hope to create control systems to enable
From playlist Engineering in Action
Anosov groups: local mixing, counting, and equidistribution - Minju Lee
Arithmetic Groups Topic: Anosov groups: local mixing, counting, and equidistribution Speaker: Minju Lee Affiliation: Member, School of Mathematics Date: February 16, 2022 This is joint work with Samuel Edwards and Hee Oh. Let G be a connected semisimple real algebraic group, and Γ less t
From playlist Mathematics
Kathryn Mann: Orderability and groups of homeomorphisms of the circle
Abstract: As a counterpart to Deroin's minicourse, we discuss actions of groups on the circle in the C0 setting. Here, many dynamical properties of an action can be encoded by the algebraic data of a left-invariant circular order on the group. I will highlight rigidity and flexibility phen
From playlist Dynamical Systems and Ordinary Differential Equations
Thin Matrix Groups - a brief survey of some aspects - Peter Sarnak
Speaker: Peter Sarnak (Princeton/IAS) Title: Thin Matrix Groups - a brief survey of some aspects More videos on http://video.ias.edu
From playlist Mathematics
How many ping-pong balls would it take to lift the Titanic?
Lifting the Titanic with ping pong balls was a real suggestion put forward in the 1970's that needless to say did not happen. Let's pretend it is possible and work out how many we would need using Archimedes Principle... This is the latest question from Tom Rocks Maths and I Love Mathemat
From playlist I Love Mathematics
Destroying a Soda Can with a Ping Pong Ball!
Kishore and Norm are joined by Zeke Kossover from San Francisco's Exploratorium science museum to show how you can destroy a soda can with a ping pong ball moving at almost the speed of sound! Thanks to the Exploratorium for sharing with us these experiments. Visit them at http://www.exp
From playlist Tested Builds
Help my 64 years old mother get better at ping pong / table tennis
Hey everyone. My table tennis table has been sitting in the garage for a while. I watched some Adam Bobrow Youtube videos recently and that inspired me to take out the table and play a few games. I started playing since quite young. I mainly played tennis growing up and I've only had a pi
From playlist Table Tennis
Acylindrically hyperbolic structures on groups - Balasubramanya
Women and Mathematics Title: Acylindrically hyperbolic structures on groups Speaker: Sahana Hassan Balasubramanya Affiliation: Vanderbilt University Date: May 23, 2017 For more videos, please visit http://video.ias.edu
From playlist Mathematics
The Spangler Effect - Ping Pong Popper Season 01 Episode 16
The Spangler Effect series was created by Steve Spangler in partnership with YouTube’s Original Content Creator Project. © 2012 Steve Spangler, Inc. All Rights Reserved Steve Spangler is a bestselling author, STEM educator and Emmy award-winning television personality with more than 1,500
From playlist Collaborations
Hack a leaf blower to make a ping pong ball cannon | Make Science Fun
How to make a ping pong ball cannon from a leaf blower | Make Science Fun Science Projects to Make at Home | Playlist https://www.youtube.com/watch?v=7s-JmXToY24&list=PLvVIP8r65WapbTeRl27qZUaVuCefoPW4s Subscribe to Make Science Fun http://www.youtube.com/subscription_center?add_user=Make
From playlist Science Projects to make at Home