Topology | Properties of topological spaces

Menger space

In mathematics, a Menger space is a topological space that satisfies a certain basic selection principle that generalizes σ-compactness. A Menger space is a space in which for every sequence of open covers of the space there are finite sets such that the family covers the space. (Wikipedia).

Video thumbnail

What Does Space Really Look Like?

When you see the beautiful pictures from the Hubble Space Telescope, you're looking at a lie. They're specially colored images, done for science. But what does space really look like? More stories at: http://www.universetoday.com/ Follow us on Twitter: @universetoday Follow us on Tumblr:

From playlist Guide to Space

Video thumbnail

若田宇宙飛行士のISSツアー

国際宇宙ステーション(ISS)に長期滞在中の若田光一宇宙飛行士が、ISS内を紹介します。(2009年4月4日撮影)(C)NASA/JAXA

From playlist Living in Space - Jaxa

Video thumbnail

A01 An introduction to a series on space medicine

A new series on space medicine.

From playlist Space Medicine

Video thumbnail

Hubble Dazzling First Light Images in HD

Watch this and other space videos at http://SpaceRip.com Spectacular new images from distant space that you must see to believe. The revolutionary Hubble Space Telescope will continue to open our eyes to the universe.

From playlist Frontiers of Deep Space

Video thumbnail

What Are Wormholes? Connecting Two Points in Spacetime

In science fiction, wormholes are a method often used to travel great distances across space. Are these magic bridges really possible? Support us at: http://www.patreon.com/universetoday More stories at: http://www.universetoday.com/ Follow us on Twitter: @universetoday Follow us on Tumblr

From playlist Space Exploration

Video thumbnail

Star Trek Transporter: Method of Travel or Suicide Booth?

Guide to Space Extra: Is Star Trek's Transporter a quick method of traveling, or is it really a death machine? Friends of Guide to Space give us their opinions! Like what you see? Subscribe to UniverseToday! Support us at: http://www.patreon.com/universetoday More stories at: http://www.u

From playlist Guide to Space

Video thumbnail

Cong He: Right-angled Coxeter Groups with Menger Curve Boundary

Cong He, University of Wisconsin Milwaukee Title: Right-angled Coxeter Groups with Menger Curve Boundary Hyperbolic Coxeter groups with Sierpinski carpet boundary was investigated by {\'S}wi{\c{a}}tkowski. And hyperbolic right-angled Coxeter group with Gromov boundary as Menger curve was s

From playlist 39th Annual Geometric Topology Workshop (Online), June 6-8, 2022

Video thumbnail

What is space?

What exactly is space? Brian Greene explains what the "stuff" around us is. Subscribe to our YouTube Channel for all the latest from World Science U. Visit our Website: http://www.worldscienceu.com/ Like us on Facebook: https://www.facebook.com/worldscienceu Follow us on Twitter: https:

From playlist Science Unplugged: Physics

Video thumbnail

野口宇宙飛行士のISS紹介

野口宇宙飛行士が、国際宇宙ステーション(ISS)の「きぼう」日本実験棟や、STS-130(20A)ミッションで取り付けられた「トランクウィリティー」(第3結合部)、キューポラを紹介します。

From playlist Living in Space - Jaxa

Video thumbnail

GCSE Maths: Volume of 3D Shapes Livestream

The third of six livestreams happening every Friday at 4pm (GMT +1) discussing the topics of the Tom Rocks Maths Appeal GCSE Maths series. The topic this week is the Volume of 3D shapes (Cubes, Cuboids, Prisms and Cylinders) - full list of questions discussed (with timestamps) below. How

From playlist Tom Rocks GCSE Maths Appeal

Video thumbnail

Commutative algebra 55: Dimension of local rings

This lecture is part of an online course on commutative algebra, following the book "Commutative algebra with a view toward algebraic geometry" by David Eisenbud. We give 4 definitions of the dimension of a Noetherian local ring: Brouwer-Menger-Urysohn dimension, Krull dimension, degree o

From playlist Commutative algebra

Video thumbnail

Mandelbulbs: the search for a 3D Mandelbrot Fractal

Follow Tom on his journey to Delft in the Netherlands in his quest to find a 3D Mandelbrot Set, otherwise known as a 'Mandelbulb'. We begin with a discussion of the definition of a fractal, with examples from the natural world, as well as generating our very own in the form of the Koch Sn

From playlist Director's Cut

Video thumbnail

Recognising Fractals from a reasonable distance - Linear Distance Estimation Edition!

Welcome to the second part of the series on recognising fractals from a reasonable distance! This is the Linear Distance Estimation Edition, featuring the following fractals: Amazing box - Mod 2 Abox - Mod Kali-V3 Abox - SurfBox Generalized Fold Box - Octahedron Generalized Fold Box - Oc

From playlist Nerdy Rodent Uploads!

Video thumbnail

Coding Challenge #2: Menger Sponge Fractal

In this coding challenge, I attempt to code the Menger Sponge (fractals) using Processing. Code: https://thecodingtrain.com/challenges/2-menger-sponge 🕹️ p5.js Web Editor Sketch: https://editor.p5js.org/codingtrain/sketches/5kcBUriAy 🎥 Previous video: https://youtu.be/17WoOqgXsRM?list=PL

From playlist Coding Challenges

Video thumbnail

NuSTAR in Space

NASA's newest X-ray telescope will have a lengthy structure that unfolds in space, allowing it to see high-energy objects like feeding black holes.

From playlist NuSTAR

Video thumbnail

Live Stream #31: Shape Morphing and Menger Sponge in Processing

Live from sfpc.io! In this video, using Processing, I take on two chat submitted challenges: Shape morphing and the Menger sponge (fractals). 15:07 - Challenge #1: Shape Morphing 44:30 - Preparation for the 2nd challenge 53:14 - Challenge #2: Menger Sponge 1:17:40 - Picking up after tec

From playlist Live Stream Archive

Video thumbnail

Lecture 20 - Trees and Connectivity

This is Lecture 20 of the CSE547 (Discrete Mathematics) taught by Professor Steven Skiena [http://www.cs.sunysb.edu/~skiena/] at Stony Brook University in 1999. The lecture slides are available at: http://www.cs.sunysb.edu/~algorith/math-video/slides/Lecture%2020.pdf More information may

From playlist CSE547 - Discrete Mathematics - 1999 SBU

Video thumbnail

Intro to Menger's Theorem | Graph Theory, Connectivity

Menger's theorem tells us that for any two nonadjacent vertices, u and v, in a graph G, the minimum number of vertices in a u-v separating set is equal to the maximum number of internally disjoint u-v paths in G. The Proof of Menger's Theorem: https://youtu.be/2rbbq-Mk-YE Remember that

From playlist Graph Theory

Video thumbnail

Interstellar flight: 10 Hard Facts

We can build powerful rockets able to carry people and machines into orbit, or even vault them to the moon. But our fastest spacecraft don't hold a candle to the distances that define Interstellar Flight. So what's on the drawing boards? What futuristic designs and fuel options promise to

From playlist Spaceten

Video thumbnail

Menger's tunnel

Menger's tunnel recipe: Take a Menger 4D Cube (or 3D, if you prefer). Duplicate it. Rotate yourself 90 degrees. Mix your cube with a Benesi - Mag transform and a T-DIFS Box. Rotate at your leisure. (Also, I'm, playing with my new LUTs. Yeah, I know, right? Colours are ACE!) Anyway, what

From playlist Nerdy Rodent Uploads!

Related pages

Topological space | Selection principle | Cichoń's diagram | Baire space | Lindelöf space | Σ-compact space