How to survive beach rip currents?
Please watch: "UNSWTV: Entertaining your curiosity" https://www.youtube.com/watch?v=bQ7UO8nxiL0 -~-~~-~~~-~~-~- Science of the Surf Playlist: https://www.youtube.com/playlist?list=PL50XnIfJxPDVqjkQ_JJhNPSM3g_8WKr4Q Rip currents are by far the greatest hazard to beach swimmers. This na
From playlist Science of the Surf with Dr Rob Brander
Some video video broadcast equipment
From playlist Teardowns
Yes. I make mistakes ... rarely. http://www.flippingphysics.com
From playlist Miscellaneous
Seek Thermal camera teardown part 1
From playlist Teardowns
An intro to the core protocols of the Internet, including IPv4, TCP, UDP, and HTTP. Part of a larger series teaching programming. See codeschool.org
From playlist The Internet
From playlist Getting Started in Cryo-EM
In this video, you’ll learn about how links function in HTML. We hope you enjoy! To learn more, check out our Basic HTML tutorial here: https://edu.gcfglobal.org/en/basic-html/ #html #links #coding
From playlist HTML
How to Survive Beach Rip Currents - Thai Translation
Please watch: "UNSWTV: Entertaining your curiosity" https://www.youtube.com/watch?v=bQ7UO8nxiL0 -~-~~-~~~-~~-~- Rip currents are the greatest hazards on our beaches. This national award-winning video shows what they are, how to spot them, what to do if you get stuck in one, and the diffe
From playlist Science of the Surf with Dr Rob Brander
Alexander Rolle (8/12/22): Homology inference for the degree-Rips bifiltration
The degree-Rips bifiltration is a density-sensitive construction based on the Vietoris-Rips filtration. I will motivate the "degree" part of the construction, and present a framework for studying homology inference questions. I will also present an example, motivated by experiments in a re
From playlist Vietoris-Rips Seminar
Matthew Zaremsky (5/21/21): Vietoris-Rips complexes and geometric group theory
This talk will serve as an overview of the role Vietoris-Rips complexes play in geometric group theory, and in particular in the study of topological finiteness properties of groups. Most famously, Rips proved that Vietoris-Rips complexes of hyperbolic groups are eventually contractible, w
From playlist Vietoris-Rips Seminar
Michael Lesnick (2/23/2022): Stability of 2-Parameter Persistent Homology
We show that the standard stability results for union-of-balls, Čech, and Rips persistent homology have natural analogues in the 2-parameter setting, formulated in terms of the multicover bifiltration and Sheehy's subdivision bifiltrations. Our results imply that these bifiltrations are r
From playlist AATRN 2022
The Big Rip - A New Fate of the Universe - Marc KamionKowaski
Speaker : Marc KamionKowaski ( California University of Technology ) Date and Time : 30 Jul 2008, 06:30 PM Venue : Chandrashekhar Auditorium, IUCAA, Pune Table of Contents (powered by https://videoken.com) 0:00:00 Weird Gravity?? Phantom Energy and the "Big Rip" 0:02:39 Robert Caldwell
From playlist Public Lectures
Henry Adams (3/12/21): Vietoris-Rips thickenings: Problems for birds and frogs
An artificial distinction is to describe some mathematicians as birds, who from their high vantage point connect disparate areas of mathematics through broad theories, and other mathematicians as frogs, who dig deep into particular problems to solve them one at a time. Neither type of math
From playlist Vietoris-Rips Seminar
Florian Frick (6/4/21): Rips complexes, projective codes, and zeros of odd maps
We will discuss a relation between the topology of Rips complexes (or their metric versions), the size of codes in projective spaces, and structural results for the zero set of odd maps from spheres to Euclidean space. On the one hand, this provides a new topological approach to problems i
From playlist Vietoris-Rips Seminar
Let’s talk about random Cech and Vietoris-Rips complexes [Andrew M. Thomas]
In this tutorial, I introduce you to the behavior of random Cech and Vietoris-Rips complexes and show how a probabilistic approach in TDA can mirror real world phenomena. Even with a relatively simple approach like looking at Betti numbers, probability can give important insights into the
From playlist Tutorial-a-thon 2021 Spring
In this video, I define what it means to rearrange (or reshuffle) a series and show that if a series converges absolutely, then any rearrangement of the series converges to the same limit. Interesting Consequence: https://youtu.be/Mw7ocynGVmw Series Playlist: https://www.youtube.com/play
From playlist Series
Luis Scoccola (12/5/21): Density-sensitive and robust Vietoris-Rips filtrations
The Vietoris-Rips (VR) filtration is 1-Lipschitz with respect to the Gromov-Hausdorff distance. Although useful in many applications, this type of result presents two difficulties: VR cannot distinguish datasets that are metrically similar but whose density structure is significantly diffe
From playlist Vietoris-Rips Seminar