The Polder tensor is a tensor introduced by Dirk Polder for the description of magnetic permeability of ferrites. The tensor notation needs to be used because ferrimagnetic materials become anisotropic in the presence of magnetizing field. The tensor is described mathematically as: where: and [kHz/(A/m)] is a gyromagnetic ratio and g is a factor between 1.9-2.4 depending on ferrite material. Magnetizing frequency (f) is expressed as , H0 is a bias field, M is magnetization and is magnetic permeability of free space. (Wikipedia).
What is General Relativity? Lesson 68: The Einstein Tensor
What is General Relativity? Lesson 68: The Einstein Tensor The Einstein tensor defined! Using the Ricci tensor and the curvature scalar we can calculate the curvature scalar of a slice of a manifold using the Einstein tensor. Please consider supporting this channel via Patreon: https:/
From playlist What is General Relativity?
Connections part 5: Riemannian Curvature Tensor and Faraday Tensor
This video was hacked together. Apologies.
From playlist Connections, Curvature and Covariant Derivatives
Calculus 3: Tensors (1 of 28) What is a Tensor?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what is a tensor. A tensor is a mathematical representation of a scalar (tensor of rank 0), a vector (tensor of rank 1), a dyad (tensor of rank 2), a triad (tensor or rank 3). Next video in t
From playlist CALCULUS 3 CH 10 TENSORS
Lek-Heng Lim: "What is a tensor? (Part 1/2)"
Watch part 2/2 here: https://youtu.be/Lkpmd5-mpHY Tensor Methods and Emerging Applications to the Physical and Data Sciences Tutorials 2021 "What is a tensor? (Part 1/2)" Lek-Heng Lim - University of Chicago, Statistics Abstract: We discuss the three best-known definitions of a tensor:
From playlist Tensor Methods and Emerging Applications to the Physical and Data Sciences 2021
What is a Tensor? Lesson 11: The metric tensor
What is a Tensor 11: The Metric Tensor
From playlist What is a Tensor?
What is a Tensor? Lesson 29: Transformations of tensors and p-forms (part review)
What is a Tensor? Lesson 29: Tensor and N-form Transformations This long lesson begins with a review of tensor product spaces and the relationship between coordinate transformations on spacetime and basis transformations of tensor fields. Then we do a full example to introduce the idea th
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As sea levels rise, Bangladeshi islanders must decide between keeping the water out—or letting it in
In flood-prone Bangladesh, resilience can mean letting water have its way. Learn more: http://scim.ag/2HXnFMW producer/editor/script/animator/narrator Nguyên Khôi Nguyên supervising producer/script Sarah Crespi original story/interviewee Warren Cornwall photo editor Bill Douthitt phot
From playlist News Features
Why is the Netherlands disappearing underwater?
Here’s why the Netherlands may have disappeared a long time ago if it wasn’t for their clever engineering. Because the majority of the Netherlands lies below sea level, they have spent years constructing large-scale sea defenses to push back water and protect themselves from calamities. T
From playlist Radical Innovations
Explore an 18th century windmill with a modern day Dutch miller. NOVA Facebook: https://www.facebook.com/NOVAonline NOVA Twitter: https://www.twitter.com/novapbs PRODUCTION CREDITS Produced, Written, and Directed by Miles O'Brien Additional Producing Cameron Hickey and Suzi Tobias Ed
From playlist Original shorts
Modeling the Quantum Bounces of Atomic Systems
We consider an atomic system (hydrogen) where we want to observe interference fringes. To do that, we use a small mirror in which the atoms will perform quantum bounces (due to the confinement between gravity and Casimir–Polder potential). We use Mathematica to implement quantum bounces. S
From playlist Wolfram Technology Conference 2021
Physics - E&M: Ch 41.3 Ohm's Law & Resistor Circuit Understood(20 of 42) What are Kirchhoff's Rules?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain Kifchhoff's Rule. 1) The sum of the currents entering a branch point equals the sum of the current leaving that branch point. 2) The sum the the voltage drops and the voltage rises around a cl
From playlist PHYSICS 41.3 OHM'S LAW AND RESISTORS UNDERSTOOD
What is a Tensor? Lesson 17: The covariant derivative (elementary pedagogy)
What is a Tensor? Lesson 17: The covariant derivative (elementary pedagogy)
From playlist What is a Tensor?
Electrical Engineering: Ch 14 Magnetic Coupling (4 of 55) What is Mutual Inductance - Part 2
Visit http://ilectureonline.com for more math and science lectures! In this video I will continue to explain the mutual inductance is the inductance between 2 coils of the 2 circuits via the equations. Part 2 http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 Ne
From playlist ELECTRICAL ENGINEERING 14 MAGNETIC COUPLING
Lek-Heng Lim: "What is a tensor? (Part 2/2)"
Watch part 1/2 here: https://youtu.be/MkYEh0UJKcE Tensor Methods and Emerging Applications to the Physical and Data Sciences Tutorials 2021 "What is a tensor? (Part 2/2)" Lek-Heng Lim - University of Chicago, Statistics Abstract: We discuss the three best-known definitions of a tensor:
From playlist Tensor Methods and Emerging Applications to the Physical and Data Sciences 2021
The TRUTH about TENSORS, Part 9: Vector Bundles
In this video we define vector bundles in full abstraction, of which tangent bundles are a special case.
From playlist The TRUTH about TENSORS
Tristan Bereau: "Physics in and out of machine learning for molecular simulations: priors and pr..."
Machine Learning for Physics and the Physics of Learning 2019 Workshop II: Interpretable Learning in Physical Sciences "Physics in and out of machine learning for molecular simulations: priors and predictive constraints" Tristan Bereau - Max Planck Institute for Polymer Research, Theory G
From playlist Machine Learning for Physics and the Physics of Learning 2019
"Das Mädchen mit den Taschenrechnern"
Prof. Günter M. Ziegler (FU Berlin) stellte am 3. Juni 2015 auf Einladung des Hausdorff Centers in der Bundeskunsthalle Bonn Auszüge aus seinem neuen Buch "Mathematik - Das ist doch keine Kunst!" vor und erläuterte dabei die Mathematik hinter einigen weltberühmten Kunstwerken.
From playlist Hausdorff Center goes public
Structure of group rings and the group of units of integral group rings (Lecture 3) by Eric Jespers
PROGRAM GROUP ALGEBRAS, REPRESENTATIONS AND COMPUTATION ORGANIZERS: Gurmeet Kaur Bakshi, Manoj Kumar and Pooja Singla DATE: 14 October 2019 to 23 October 2019 VENUE: Ramanujan Lecture Hall, ICTS Bangalore Determining explicit algebraic structures of semisimple group algebras is a fund
From playlist Group Algebras, Representations And Computation
Prealgebra 4.4a - Fractions - Example Problems 1 - 2
Two example problems involving fractions: 1. Doug stocked the grocery store shelf with 35 half gallons of orange juice. Write the total number of gallons of orange juice as a mixed number. 2. One of the largest dogs in the world is an English Mastiff. A full grown English Mastiff can
From playlist Prealgebra Chapter 4 (Complete chapter)
Simple intro to the curl of a vector field and how to calculate it. The curl is one of the basic operations of vector calculus.
From playlist Engineering Mathematics