Paper folding | Discrete geometry

Napkin folding problem

The napkin folding problem is a problem in geometry and the mathematics of paper folding that explores whether folding a square or a rectangular napkin can increase its perimeter. The problem is known under several names, including the Margulis napkin problem, suggesting it is due to Grigory Margulis, and the Arnold's rouble problem referring to Vladimir Arnold and the folding of a Russian ruble bank note. Some versions of the problem were solved by Robert J. Lang, , , and . One form of the problem remains open. (Wikipedia).

Napkin folding problem
Video thumbnail

Google Sheets: Modifying Cells

In this video, you’ll learn more about modifying rows, columns, and cells in Google Sheets. Visit https://edu.gcfglobal.org/en/googlespreadsheets/modifying-columns-rows-and-cells/1/ for our text-based lesson. This video includes information on: • Modifying columns, rows, and cells • Inser

From playlist Google Sheets

Video thumbnail

Ex 1: Solve a System of Equations by Graphing

This video provides an example of how to solve of system of linear equations by graphing. Complete Library: http://www.mathispower4u.com Search by Topic: http://www.mathispower4u.wordpress.com

From playlist Solving Systems of Equations by Graphing

Video thumbnail

Obtsructive jaundice

In today's video we take a look at the common causes of obstructive jaundice and how you should go about investigating these patients.

From playlist Let's talk Surgery

Video thumbnail

Learn To Make A Coin APPEAR INSIDE A Glass!!

Spidey's Channel: https://www.youtube.com/channel/UCLESI66b8Efqw9EjFteMbbg Today, my friend Spidey will be teach you a cool impromptu miracle using borrowed items! Enjoy! 1000's of PUZZLES Available here: http://www.puzzlemaster.ca/?a=681162 ___ INSTAGRAM: https://www.instagram.com/chr

From playlist Tutorials

Video thumbnail

Ex 2: Solve a System of Equations by Graphing

This video provides an example of how to solve of system of linear equations by graphing. Complete Library: http://www.mathispower4u.com Search by Topic: http://www.mathispower4u.wordpress.com

From playlist Solving Systems of Equations by Graphing

Video thumbnail

How to Layout a Website

The vast majority of questions I receive boil down to How to Layout a Website! While I'm not going to say it is easy to make a website. It takes time! However, I think anyone can learn to layout a website if they grasp some core concepts. In my next series of videos I'm going to focus on

From playlist How to Layout a Website

Video thumbnail

System of Linear Inequalities

http://mathispower4u.wordpress.com/

From playlist Systems of Equations and Inequalities

Video thumbnail

PowerPoint: Tables

In this video, you’ll learn the basics of working with tables in PowerPoint 2019, PowerPoint 2016, and Office 365. Visit https://edu.gcfglobal.org/en/powerpoint/tables/1/ for our text-based lesson. This video includes information on: • Resizing and deleting tables • Modifying tables with

From playlist Microsoft PowerPoint

Video thumbnail

Remembering John Conway - Part 5

Bay Area Artists and Mathematicians - BAAM! with Gathering 4 Gardner - G4G present Remembering John Conway Mathematician John Horton Conway died of COVID-19 on April 11, 2020. On April 25th, the Bay Area Artists and Mathematicians (BAAM!) hosted an informal Zoom session to share memories

From playlist Tributes & Commemorations

Video thumbnail

10 Amazing Bets You Will Always Win - (Ep 11)

Grid bet: https://quirkologyblog.wordpress.com/free-downloads/ Visit http://www.quirkology.com Buy the book UK: https://goo.gl/BKadJg Buy the book US: https://goo.gl/XLTErW Music: https://cameronwattmusic.wordpress.com

From playlist 10 bets you will always win

Video thumbnail

10 super simple party stunts

Visit http://www.quirkology.com Buy the book UK: https://goo.gl/BKadJg Buy the book US: https://goo.gl/XLTErW Music: https://cameronwattmusic.wordpress.com

From playlist Jokes & Tricks

Video thumbnail

We May Have Figured Out Why Neptune and Uranus Are So Different

I wrote a foreword for this awesome Sci-Fi book here: https://amzn.to/3aGrg0I Get a Wonderful Person shirt: https://teespring.com/stores/whatdamath Alternatively, PayPal donations can be sent here: paypal.me/whatdamath Hello and welcome! My name is Anton and in this video, we will talk ab

From playlist Solar System

Video thumbnail

TEDxCaltech - Jordan Theriot - The Pleasure of Finding Things Out

Jordan Theriot is a third-year undergraduate majoring in chemistry at Caltech. Jordan is working in the lab of Professor Robert Grubbs designing and synthesizing new metathesis catalysts, which are important for the formation of new carbon-carbon bonds. Shortly after Hurricane Katrina, she

From playlist TEDxCaltech - 1/14/11

Video thumbnail

The Infinity Puzzle: Quantum Field Theory and the Hunt for an Orderly Universe

40 years ago, a group of scientists made breakthroughs which later inspired the construction of the Large Hadron Collider. Speculation is rife that by 2012 the elusive Higgs boson (God particle) will be found, if found, the Higgs boson would help explain why everything has mass. But thereΓ

From playlist Quantum Field Theory

Video thumbnail

Discrete Math - 10.1.1 Introduction to Graphs

A brief introduction to graphs including some terminology and discussion of types of graphs and their properties. Textbook: Rosen, Discrete Mathematics and Its Applications, 7e Playlist: https://www.youtube.com/playlist?list=PLl-gb0E4MII28GykmtuBXNUNoej-vY5Rz

From playlist Discrete Math I (Entire Course)

Video thumbnail

10 Amazing Bets That You Never Lose (Episode 10)

Visit http://www.quirkology.com Buy the book UK: https://goo.gl/BKadJg Buy the book US: https://goo.gl/XLTErW Music: https://cameronwattmusic.wordpress.com

From playlist 10 bets you will always win

Video thumbnail

Eleftherios Pavlides & Thomas Banchoff - Hinge Elastegrities Shape Shifting - G4G12 April 2016

Named by analogy to tensegrity, maintaining form integrity through tension alone, hinge-elastegrity, maintaining form integrity with elastic hinges, is created by folding and weaving a shape-memory membrane, into a network of rigid members suspended with elastic hinges. The shape-shifting

From playlist G4G12 Videos

Video thumbnail

How to Fix an Excel Table that’s Slow to Scroll or Respond

Sign up for our Excel webinar, times added weekly: https://www.excelcampus.com/blueprint-registration/ In this video, I demonstrate how to resolve a performance issue caused by whole column references in Excel Tables. If your sheets that contain tables are slow to scroll and lag a bit, th

From playlist Excel Tables Tutorials

Video thumbnail

Lecture 4: Efficient Origami Design

MIT 6.849 Geometric Folding Algorithms: Linkages, Origami, Polyhedra, Fall 2012 View the complete course: http://ocw.mit.edu/6-849F12 Instructor: Erik Demaine This lecture continues to discuss the tree method and characterizing a uniaxial base. Another algorithm, Origamizer, is presented

From playlist MIT 6.849 Geometric Folding Algorithms, Fall 2012

Video thumbnail

Graph the linear inequality when you have slope as a fraction

👉 Learn how to graph linear inequalities written in slope-intercept form. Linear inequalities are graphed the same way as linear equations, the only difference being that one side of the line that satisfies the inequality is shaded. Also broken line (dashes) is used when the linear inequal

From playlist Graph Linear Inequalities in Two Variables

Related pages

Vladimir Arnold | Rectangle | Origami | Perimeter | Mathematics of paper folding | Geometry | Rigid origami | Pureland origami