Constant width | Theorems in plane geometry | Length | Pi

Barbier's theorem

In geometry, Barbier's theorem states that every curve of constant width has perimeter π times its width, regardless of its precise shape. This theorem was first published by Joseph-Émile Barbier in 1860. (Wikipedia).

Barbier's theorem
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C73 Introducing the theorem of Frobenius

The theorem of Frobenius allows us to calculate a solution around a regular singular point.

From playlist Differential Equations

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Estimate π with pasta? Buffon's noodle problem. Why is pi here?

Why can we estimate pi by throwing pasta onto a square grid? Why is pi here? Solution to Buffon's needle by generalizing to Buffon's noodle using only probability theory and no calculus. More links below Links to my follow up videos: * Computer simulations in Python/Google collab: https:/

From playlist Summer of Math Exposition Youtube Videos

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Why are manhole covers round? - Marc Chamberland

View full lesson: http://ed.ted.com/lessons/why-are-manhole-covers-round-marc-chamberland Why are most manhole covers round? Sure it makes them easy to roll, and slide into place in any alignment. But there’s another, more compelling reason, involving a peculiar geometric property of circ

From playlist New TED-Ed Originals

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How Braille was invented | Moments of Vision 9 - Jessica Oreck

View full lesson: http://ed.ted.com/lessons/how-braille-was-invented-moments-of-vision-9-jessica-oreck Today, Braille is the universally accepted system of writing for the blind, translated into almost every language in almost every country across the globe. But it didn’t actually start o

From playlist New TED-Ed Originals

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Viviani’s theorem

This is a short, animated visual proof of Viviani's theorem, which states that the sum of the distances from any interior point to the sides of an equilateral triangle is equal to the length of the triangle's altitude. #math​ #geometry #mtbos​ #manim​ #animation​ #theorem​ #pww​ #proofwith

From playlist MathShorts

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Mathematical and Computational Aspects of Machine Learning - 8 October 2019

http://www.crm.sns.it/event/451/timetable.html#title 9:00- 10:00 Peyré, Gabriel Optimal Transport for Data Science 10:00- 10:30 Coffee break 10:30- 11:30 Barbier, Jean Mean field theory of high-dimensional Bayesian inference 11:30- 12:30 Barbier, Jean Mean field theory of high-dimensi

From playlist Centro di Ricerca Matematica Ennio De Giorgi

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A09 The Hamiltonian

Moving on from Lagrange's equation, I show you how to derive Hamilton's equation.

From playlist Physics ONE

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Viviani's Theorem: "Proof" Without Words

Link: https://www.geogebra.org/m/BXUrfwxj

From playlist Geometry: Challenge Problems

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Ptolemy's theorem and generalizations | Rational Geometry Math Foundations 131 | NJ Wildberger

The other famous classical theorem about cyclic quadrilaterals is due to the great Greek astronomer and mathematician, Claudius Ptolemy. Adopting a rational point of view, we need to rethink this theorem to state it in a purely algebraic way, without resort to `distances' and the correspon

From playlist Math Foundations

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Asymmetric Total Synthesis of Toxicodenane A

An organic chemistry minilecture on the Asymmetric Total Synthesis of Toxicodenane A by Samarium-Iodide-Induced Barbier-Type Cyclization and Its Cell-Protective Effect against Lipotoxicity by Keisuke Nishikawa,* Koki Kikuta, Tomoki Tsuruta, Hitoshi Nakatsukasa, Sho Sugahara, Shinji Kume an

From playlist Total Synthesis

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New Reuleaux Triangle Magic

NEW (Christmas 2019). Two ways to support Mathologer Mathologer Patreon: https://www.patreon.com/mathologer Mathologer PayPal: paypal.me/mathologer (see the Patreon page for details) Today's video is about plane shapes that, just like circles, have the same width in all possible directi

From playlist Recent videos

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Irreducibility and the Schoenemann-Eisenstein criterion | Famous Math Probs 20b | N J Wildberger

In the context of defining and computing the cyclotomic polynumbers (or polynomials), we consider irreducibility. Gauss's lemma connects irreducibility over the integers to irreducibility over the rational numbers. Then we describe T. Schoenemann's irreducibility criterion, which uses some

From playlist Famous Math Problems

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Power BI Dashboard | How To Create A Dashboard In Power BI Desktop | Power BI Tutorial | Edureka

( Power BI Training - https://www.edureka.co/power-bi-certification-training ) This Edureka "Power BI Dashboard" video will help you to understand how to create a Dashboard in Power BI. We have also discussed lots of examples in this session. Below are the topics covered in this tutorial:

From playlist Power BI Tutorial Videos | Edureka

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Viviani's Theorem | Visualization and Proof

A visual proof of Viviani's theorem. For any point inside an equilateral triangle, the sum of its perpendicular distances from the three sides is constant. And, this sum is equal to the length of the triangle's altitude. Follow: https://instagram.com/doubleroot.in Music by CeeaDidIt from

From playlist Summer of Math Exposition Youtube Videos

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Fermat's Last Theorem for rational and irrational exponents

Fermat's Last Theorem states the equation x^n + y^n = z^n has no integer solutions for positive integer exponents greater than 2. However, Fermat's Last Theorem says nothing about exponents that are not positive integers. Note: x, y and z are meant to be positive integers, which I should

From playlist My Maths Videos

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Barbie Was a Sex Toy - Dear Mom

Cristen talks about Barbie's checkered history, what she would look like in real life and whether the most popular doll in the world is bad for girls. Share this on Facebook: http://on.fb.me/1l9McOL Share this on Twitter: http://ctt.ec/d2qE5 Subscribe: http://bit.ly/1l8JXv3 On the web: h

From playlist Stuff Mom Never Told You

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How To Avoid The Next Atlantis

A big thank you to AXA for sponsoring this video. Visit http://www.axa.com/resilience to learn more about their survey on how cities and businesses worldwide are adapting to climate-related challenges. Thanks also to our Patreon patrons: - Today I Found Out - Jeff Straathof - Mark - Maart

From playlist Policy

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Total Synthesis of (±)-11‑O‑Debenzoyltashironin via Palladium-Catalyzed 5-endo Ene-Yne Cyclization

An organic chemistry minilecture on the Total Synthesis of (±)-11‑O‑Debenzoyltashironin via Palladium-Catalyzed 5-endo Ene-Yne Cyclization Enabled trans-5−6 Ring Fusion by Jie Tong, Tianrun Xia, and Bo Wang*. Highlights include a Pd(II)-catalyzed 5-endo ene-yne cyclization and a Ti(III) p

From playlist Total Synthesis

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Calculus - The Fundamental Theorem, Part 2

The Fundamental Theorem of Calculus. A discussion of the antiderivative function and how it relates to the area under a graph.

From playlist Calculus - The Fundamental Theorem of Calculus

Related pages

Perimeter | Body of constant brightness | Reuleaux polygon | Unit sphere | Curve of constant width | Isoperimetric inequality | Surface of revolution | Buffon's noodle | Central angle | Pi | Radius | Diameter | Crofton formula | Reuleaux triangle | Geometry | Blaschke–Lebesgue theorem | Integral geometry | Surface of constant width | Circle