Pleated surface

Cylindrical Surfaces

This video defines a cylindrical surface and explains how to graph a cylindrical surface. http://mathispower4u.yolasite.com/

From playlist Quadric, Surfaces, Cylindrical Coordinates and Spherical Coordinates

MATH331: Riemann Surfaces - part 1

We define what a Riemann Surface is. We show that PP^1 is a Riemann surface an then interpret our crazy looking conditions from a previous video about "holomorphicity at infinity" as coming from the definition of a Riemann Surface.

From playlist The Riemann Sphere

Hinged negatively curved surfaces

This is joint work with Geoffrey Irving. All of these surfaces are available from Shapeways at https://www.shapeways.com/shops/henryseg?section=Hinged+Surfaces

From playlist 3D printing

Introduction to Quadric Surfaces

http://mathispower4u.yolasite.com/

From playlist Quadric, Surfaces, Cylindrical Coordinates and Spherical Coordinates

Unwrap torus

From playlist Surface integrals

More general surfaces | Differential Geometry 22 | NJ Wildberger

This video follows on from DiffGeom21: An Introduction to surfaces, starting with ruled surfaces. These were studied by Euler, and Monge gave examples of how such surfaces arose from the study of curves, namely as polar developables. A developable surface is a particularly important and us

From playlist Differential Geometry

Complex surfaces 4: Ruled surfaces

This talk gives an informal survey of ruled surfaces and their role in the Enriques classification. We give a few examples of ruled surfaces, summarize the basic invariants of surfaces, and sketch how one classifies the surfaces of Kodaira dimension minus infinity.

From playlist Algebraic geometry: extra topics

Michael Wolf - Sheared Pleated surfaces and Limiting Configurations for Hitchin's equations

Michael Wolf Sheared Pleated surfaces and Limiting Configurations for Hitchin's equations A recent work by Mazzeo-Swoboda-Weiss-Witt describes a stratum of the frontier of the space of SL(2,C) surface group representations in terms of 'limiting configurations' which solve a degenerate ver

From playlist Maryland Analysis and Geometry Atelier

Sheared Pleated surfaces and Limiting Configurations for Hitchin's equations by Michael Wolf

Surface Group Representations and Geometric Structures DATE: 27 November 2017 to 30 November 2017 VENUE:Ramanujan Lecture Hall, ICTS Bangalore The focus of this discussion meeting will be geometric aspects of the representation spaces of surface groups into semi-simple Lie groups. Classi

From playlist Surface Group Representations and Geometric Structures

Light and Optics 5_1 Refractive Surfaces

The bending of light rays at the interface of refracting surfaces.

From playlist Physics - Light and Optics

What is the difference between convex and concave

👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1

From playlist Classify Polygons

Class 5: Tessellations & Modulars

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 class introduces more examples of origami models that use a variety of techniques and media. At the end of the session, the c

From playlist MIT 6.849 Geometric Folding Algorithms, Fall 2012

The Mathematics of Clothing Design - Etienne Ghys

Public lecture

From playlist Mathematics Research Center

Lecture 9: Pleat Folding

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 introduces the hyperboloic paraboloid, hyparhedra, and the circular pleat. Topics include triangulated folding of the

From playlist MIT 6.849 Geometric Folding Algorithms, Fall 2012

Caltech Science Exchange Presents Conversations on COVID 19: Why Masks Work

Conversations on COVID-19: Why Masks Work Professor Richard Flagan speaks with Caltech science writer Emily Velasco about why and how masks reduce the spread of disease. Professor Flagan uses advanced instruments to study the chemistry and movement of tiny particles and droplets suspend

From playlist Caltech Science Exchange

THE BASICS: Drapery-Cloth Drawing (Long Term) PART TWO

Part Two of Four

From playlist THE BASICS

Class 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 class begins with folded examples produced by TreeMaker and Origamizer. Explanation of the triangulation algorithm, checkerbo

From playlist MIT 6.849 Geometric Folding Algorithms, Fall 2012

How To Wear Facemasks (Properly), Handwashing and More!

Everything you might want to know about whether facemasks are effective or not, and the best hand hygiene guide. Get 1 month free at Curiosity Stream + Nebula at http://curiositystream.com/drawcuriosity Video index with timecodes. 00:00 introduction 02:51 Facemasks 03:18 How do and don'

From playlist Docuriosity

Class 9: Pleat Folding

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 class covers creases in context of smoothness and a proof from the lecture involving Taylor expansion. Algorithms for the num

From playlist MIT 6.849 Geometric Folding Algorithms, Fall 2012

What is a concave polygon

👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1

From playlist Classify Polygons