In mathematics, a toroid is a surface of revolution with a hole in the middle. The axis of revolution passes through the hole and so does not intersect the surface. For example, when a rectangle is rotated around an axis parallel to one of its edges, then a hollow rectangle-section ring is produced. If the revolved figure is a circle, then the object is called a torus. The term toroid is also used to describe a toroidal polyhedron. In this context a toroid need not be circular and may have any number of holes. A g-holed toroid can be seen as approximating the surface of a torus having a topological genus, g, of 1 or greater. The Euler characteristic χ of a g holed toroid is 2(1-g). The torus is an example of a toroid, which is the surface of a doughnut. Doughnuts are an example of a solid torus created by rotating a disk, and should not be confused with toroids. (Wikipedia).
Ellipse Definition: Dynamic and Modifiable Illustrator
GeoGebra Links: https://www.geogebra.org/m/hy5zj7Dx https://www.geogebra.org/m/CrVpc8pP https://www.geogebra.org/m/v9ndC8W7
From playlist PreCalculus: Dynamic Interactives!
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
Area of a Rhombus: Without Words
GeoGebra Resource Link: https://www.geogebra.org/m/acfbyxaw
From playlist Geometry: Dynamic Interactives!
What's an Octagon? Geometry Terms and Definitions
An introduction to the octagon, a fundamental geometric shape. Geometer: Louise McCartney Artwork: Kelly Vivanco Director: Michael Harrison Written & Produced by Kimberly Hatch Harrison and Michael Harrison ♦♦♦♦♦♦♦♦♦♦ Ways to support our channel: ► Join our Patreon : https://www.patre
From playlist Socratica: The Geometry Glossary Series
Inspired by http://www.youtube.com/watch?v=PQOjkuJtBfM
From playlist Projects & Installations
Projection of One Vector onto Another Vector
Link: https://www.geogebra.org/m/wjG2RjjZ
From playlist Trigonometry: Dynamic Interactives!
Field-Tunable Toroidal Moment in a Chiral-Lattice Magnet by Harald O. Jeschke
PROGRAM FRUSTRATED METALS AND INSULATORS (HYBRID) ORGANIZERS: Federico Becca (University of Trieste, Italy), Subhro Bhattacharjee (ICTS-TIFR, India), Yasir Iqbal (IIT Madras, India), Bella Lake (Helmholtz-Zentrum Berlin für Materialien und Energie, Germany), Yogesh Singh (IISER Mohali, In
From playlist FRUSTRATED METALS AND INSULATORS (HYBRID, 2022)
Adding Vectors Geometrically: Dynamic Illustration
Link: https://www.geogebra.org/m/tsBer5An
From playlist Trigonometry: Dynamic Interactives!
Dynamo theory and its application to the Sun by Arnab Rai Choudhuri
Turbulence from Angstroms to light years DATE:20 January 2018 to 25 January 2018 VENUE:Ramanujan Lecture Hall, ICTS, Bangalore The study of turbulent fluid flow has always been of immense scientific appeal to engineers, physicists and mathematicians because it plays an important role acr
From playlist Turbulence from Angstroms to light years
Summary Talk of the day & Discussion
Extragalactic Relativistic Jets: Cause and Effect PROGRAM LINK: www.icts.res.in/program/ERG2015 DATES: Monday 12 Oct, 2015 - Tuesday 20 Oct, 2015 VENUE: Ramanujan Lecture Hall, ICTS Bangalore DESCRIPTION : Active Galactic Nuclei (AGN) are the luminous centers of galaxies that are belie
From playlist Extragalactic Relativistic Jets: Cause and Effect
The mysterious magnetic personality of our Sun by Arnab Rai Choudhary
Sunday, 13 May 2018 One day RAD@home Astronomy Workshop Prof. Ananda Hota UM-DAE CEBS & RAD@home, India Title: How Any BSc/BE Can Do citizen-science research (#ABCDresearch ) using GMRT telescope sitting @home anywhere in India. Timings: 10:00 - 10:20 Prof. Ananda Hota UM-DAE C
From playlist One Day Rad@home Astronomy Workshop (Odraw)
GeoGebra 3D Calculator: When to Use?
GeoGebra 3D Calculator is one of the five apps in Calculator Suite. https://www.geogebra.org/calculator
From playlist GeoGebra Apps Intro: Which to USE?
From playlist PHYS 102 | Faraday's Law
Stanford Seminar: A Topologically Optimal Internet
EE380: Computer Systems Colloquium A Topologically Optimal Internet Speaker: Alan Huang, Ph.D, Terabit Corporation Current packet backbone networks are based on telephone, railroad, or highway networks. They were designed to minimize the total link length. Packet switched networks are d
From playlist Stanford EE380-Colloquium on Computer Systems - Seminar Series
PHYS 102 | Solenoids 4 - Magnetic Fields of a Toroid
Here we introduce toroids and calculate the magnetic field inside. -----Magnetic Sources playlist - https://www.youtube.com/playlist?list=PL9_sR6Qqqcyn_1GziKPi9noqXziphFih6 -----Use the channel, or take the courses at edX - https://www.edx.org/course?search_query=hafner+ricex -----This m
From playlist PHYS 102 | Magnetic Sources
Physics - E&M: Inductance (20 of 20) Toroidal Solenoid: Non-Uniform Magnetic Field
Visit http://ilectureonline.com for more math and science lectures! In this video I will take an in-depth look at the uniformity of the magnetic field inside a toroidal solenoid.
From playlist PHYSICS E&M 5: INDUCTANCE, MUTUAL INDUCTANCE, RC RL AND RCL CIRCUITS
https://www.math.ias.edu/files/media/agenda.pdf More videos on http://video.ias.edu
From playlist Mathematics
Two Properties of Logarithms: Without Words
Link: https://www.geogebra.org/m/puEbQtBY
From playlist PreCalculus: Dynamic Interactives!