Complex surfaces | Algebraic surfaces

Barth surface

In algebraic geometry, a Barth surface is one of the complex nodal surfaces in 3 dimensions with large numbers of double points found by Wolf Barth. Two examples are the Barth sextic of degree 6 with 65 double points, and the Barth decic of degree 10 with 345 double points. For degree 6 surfaces in P3, David Jaffe and Daniel Ruberman showed that 65 is the maximum number of double points possible.The Barth sextic is a counterexample to an incorrect claim by Francesco Severi in 1946 that 52 is the maximum number of double points possible. (Wikipedia).

Barth surface
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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

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Surface Morphing

http://demonstrations.wolfram.com/SurfaceMorphing/ The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. Continuous morphing between two parametric surfaces in 3D By Yu-Sung Chang

From playlist Wolfram Demonstrations Project

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Elliptic Paraboloid

http://demonstrations.wolfram.com/EllipticParaboloid/ The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. An elliptic paraboloid is a quadratic surface given by x^2/a^2+y^2/b^2=cz. By Jeff Bryant

From playlist Wolfram Demonstrations Project

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Linear Desface

Here we show a quick way to set up a face in desmos using domain and range restrictions along with sliders. @shaunteaches

From playlist desmos

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Ellipsoid

http://demonstrations.wolfram.com/Ellipsoid/ The Wolfram Demonstration Project contains thousands of free interactive visualizations with new entries added daily. An ellipsoid is a quadratic surface given by a^2/x^2+b^2/y^2+c^2/z^2=1 Contributed by Jeff Bryant

From playlist Wolfram Demonstrations Project

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11. John Barth, Lost in the Funhouse

The American Novel Since 1945 (ENGL 291) In her lecture on John Barth's collection of stories Lost in the Funhouse, Professor Amy Hungerford delves beyond the superficial pleasures and frustrations of Barth's oft-cited metafictional masterwork to illuminate the profound commitment to la

From playlist The American Novel Since 1945 with Amy Hungerford

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Show and Tell: Adam Savage's 2001: A Space Odyssey Space Suit!

Friend of Tested aerospace enthusiast and engineer Andrew Barth visits Adam in the cave, which gives Adam the chance to show and share his 2001: A Space Odyssey space suit he made for Comic-Con 2015! It's the first "reverse" Show and Tell in which Adam gets to introduce new visitors to the

From playlist Inside Adam's Cave

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3D Printing Objects With Caustics | Two Minute Papers #38

What are caustics? A caustic is a beautiful phenomenon in nature where curved surfaces reflect or refract light, thereby concentrating it to a relatively small area. This technique makes it possible to essentially imagine any kind of caustic pattern, for instance, this brain pattern, and i

From playlist 3D Printing / 3D Fabrication

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24. Students' Choice Novel: Jonathan Safran Foer, Everything is Illuminated

The American Novel Since 1945 (ENGL 291) In this first of two lectures on the students' choice end-of-semester novel, Jonathan Safran Foer's Everything is Illuminated (2002), Professor Hungerford models several methods for approaching and evaluating a new work of fiction. She shows how

From playlist The American Novel Since 1945 with Amy Hungerford

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Thomas Courtade : Information Theoretic Perspective on Brascamp -Lieb- Barthe Inequalities

Recording during the thematic meeting : "Geometrical and Topological Structures of Information" the August 28, 2017 at the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent

From playlist Geometry

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Adam Savage’s One Day Builds: Project Egress Apollo Hatch!

To commemorate the 50th anniversary of the moon landing, Adam Savage and the Smithsonian Institution collaborated on Project Egress, a plan to create a LIFE-SIZE replica of the Apollo 11 command module hatch! The build entailed hours of planning, scanning and organizing the 40-plus artists

From playlist Adam Savage's One Day Builds

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A new robot that prints buildings

Scientists have built the world’s most capable construction robot--it can 3D print foam domes and work with local materials like gravel or even ice. Learn more: http://scim.ag/2q94nxP Read the research: http://scim.ag/2q7LX0B

From playlist Robots, AI, and human-machine interfaces

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13. Toni Morrison, The Bluest Eye

The American Novel Since 1945 (ENGL 291) Professor Hungerford draws a contrast between Toni Morrison and most of the writers studied up to this point in the course by pointing out how, for an African-American woman writer in particular, language is a site of violence. For all of her pow

From playlist The American Novel Since 1945 with Amy Hungerford

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Arts and Letters of the Harlem Renaissance: Crash Course Black American History #26

The Harlem Renaissance was one of the richest, most vibrant, and most culturally generative artistic periods in American history and the work that emerged from that period continues to shape the landscape of American arts and letters today. In this episode, we’re going to explore some of

From playlist Back to School - Expanded

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QTV #12 - Barth STG600 / STG650 CAN Mini PLC

Please support my content creation by using my Amazon Store: http://astore.amazon.com/m0711-20 Or anything on Amazon: http://www.amazon.com/?_encoding=UTF8&camp=212353&creative=380557&linkCode=sb1&tag=m0711-20 ------------------------------ Click "Show more" -------------------------------

From playlist Quick Tech Videos - QTV!

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12. Thomas Pynchon, The Crying of Lot 49

The American Novel Since 1945 (ENGL 291) Professor Hungerford introduces this lecture by reviewing the ways that authors on the syllabus up to this point have dealt with the relationship between language and life, that collection of elusive or obvious things that for literary critics fa

From playlist The American Novel Since 1945 with Amy Hungerford

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What's a plane? Geometry Terms and Definitions

Points, lines and planes are some of the fundamental objects in Euclidean geometry. Learn about the plane and its essential properties. Geometer: Louise McCartney Artwork: Kelly Vivanco Director: Michael Harrison Written & Produced by Kimberly Hatch Harrison and Michael Harrison ♦♦♦♦♦♦

From playlist Socratica: The Geometry Glossary Series

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Desmos Marbleslides & Open Middle Mashup

Spatial reasoning, graphing, @Desmos Marbleslides, & Open Middle all merged together. A start with more to come: https://teacher.desmos.com/activitybuilder/custom/6053fcc4144aa1448a8f6c3f

From playlist Desmos Activities, Illustrations, and How-To's

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T4D #117 - HemaVision Kickstarter...and other Bits and Bobs.

Please support my content creation by using my Amazon Store: http://astore.amazon.com/m0711-20 ------------------------------ Click "Show more" ------------------------------------------- In this video: * HemaVision: Smart thermal imaging with computer vision Kickstarter - https://www.kic

From playlist Tip or Thought for the Day!

Related pages

Endrass surface | Sarti surface | Icosidodecahedron | Francesco Severi | Nodal surface | Algebraic geometry | Regular dodecahedron | Togliatti surface | Tetrahedron