Exact solutions in general relativity

Electrovacuum solution

In general relativity, an electrovacuum solution (electrovacuum) is an exact solution of the Einstein field equation in which the only nongravitational mass–energy present is the field energy of an electromagnetic field, which must satisfy the (curved-spacetime) source-free Maxwell equations appropriate to the given geometry. For this reason, electrovacuums are sometimes called (source-free) Einstein–Maxwell solutions. (Wikipedia).

Video thumbnail

Electromagnets! How Do They Work?

In this video i show and explained the power of electromagnets!!!

From playlist ELECTROMAGNETISM

Video thumbnail

Solution Chemistry and Net Ionic Equations

What are electrolytes? Yes, they're what plants crave. But they are also ionic solids dissociated in solution, such that they can conduct electrical current. Learn about solutions! Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem More AP Chemistry review material

From playlist General Chemistry

Video thumbnail

How to Make Electrolytic Capacitors

How to make a simple electrolytic capacitor using aluminum from a soda can, distilled water and baking soda, or sodium bicarbonate. I start out explaining what an electrolytic capacitor is, how it's one where the dielectric is a very thin layer of aluminum oxide. The plates are really the

From playlist Electronics Projects

Video thumbnail

Extraction Of Aluminium Using Electrolysis | Environmental Chemistry | FuseSchool

Extraction Of Aluminium Using Electrolysis | Environmental Chemistry | FuseSchool Aluminium is the most abundant metal on Earth. However, it is expensive because a lot of electricity is used to extract it. Aluminium conducts heat and electricity well, has a low density and does not corrod

From playlist CHEMISTRY: Environmental Chemistry

Video thumbnail

20 AWESOME Electromagnetic induction in laboratory!!!

This videos shoe and describes about the Electromagnetic Induction, Faraday's observation.It also describes about the magnitude and direction of induced e.m.f, Faraday’s Laws of Electromagnetic Induction and the Lenz’s Law.

From playlist ELECTROMAGNETISM

Video thumbnail

Solar power monitoring and logging solution - Part 1

I put together a "cheap" solution to monitor and log power from my test solar system.

From playlist Electronic Measurement Equipment

Video thumbnail

Conductivity of Solutions

We look at the electrical conductivity of several solutions. Substances include tap water, distilled water, sodium chloride, hydrochloric acid, sodium hydroxide, sugar, vinegar, ethanol, and barium sulfate. The solutions are mixed to approximately the same ratios. The tester is a pair of s

From playlist Electricity and Magnetism

Video thumbnail

Passivation of Titanium Metal

A quick video on titanium and passivation electrochemistry that makes it a bad anode if used without further treatment.

From playlist Electrochemistry

Video thumbnail

Physics - E&M: Maxwell's Equations (1 of 30) What are the Maxwell equations? Introduction

Visit http://ilectureonline.com for more math and science lectures! In this video I will introduction to Maxwell's equations.

From playlist PHYSICS - ELECTRICITY AND MAGNETISM 3

Video thumbnail

Mod-04 Lec-15 Well-posedness and Examples of IVP

Ordinary Differential Equations and Applications by A. K. Nandakumaran,P. S. Datti & Raju K. George,Department of Mathematics,IISc Bangalore.For more details on NPTEL visit http://nptel.ac.in.

From playlist IISc Bangalore: Ordinary Differential Equations and Applications | CosmoLearning.org Mathematics

Video thumbnail

Mod-03 Lec-13 Second Order Linear Equations Continued I

Ordinary Differential Equations and Applications by A. K. Nandakumaran,P. S. Datti & Raju K. George,Department of Mathematics,IISc Bangalore.For more details on NPTEL visit http://nptel.ac.in.

From playlist IISc Bangalore: Ordinary Differential Equations and Applications | CosmoLearning.org Mathematics

Video thumbnail

Molarity, Molality, Volume & Mass Percent, Mole Fraction & Density - Solution Concentration Problems

This video explains how to calculate the concentration of the solution in forms such as Molarity, Molality, Volume Percent, Mass Percent, and Mole Fraction. It also explains how to calculate the Molarity of the solution given mass percent and density. Access The Full 1 Hour 20 Minute Vid

From playlist New AP & General Chemistry Video Playlist

Video thumbnail

19 - Homogeneous vs. non homogeneous systems

Algebra 1M - international Course no. 104016 Dr. Aviv Censor Technion - International school of engineering

From playlist Algebra 1M

Video thumbnail

Linear Systems of Differential Equations | The Great Courses Plus

Linear algebra isn't a big deal, unless you want to have a top-ranking website on search engines or recoverable coded data, or to maximize your budget or your diet. Dust off your high school calculator and decode the universe. Presented by Robert L. Devaney Learn more about mathematics at

From playlist Math and Statistics

Video thumbnail

Mod-04 Lec-22 Continuation of Solutions

Ordinary Differential Equations and Applications by A. K. Nandakumaran,P. S. Datti & Raju K. George,Department of Mathematics,IISc Bangalore.For more details on NPTEL visit http://nptel.ac.in.

From playlist IISc Bangalore: Ordinary Differential Equations and Applications | CosmoLearning.org Mathematics

Video thumbnail

Panagiota Daskalopoulos: 1/3 Ancient Solutions to Geometric Flows [2017]

Ancient Solutions to Geometric Flows Speaker: Panagiota Daskalopoulos, Columbia University Date and Time: Tuesday, October 3, 2017 - 4:30pm to 5:30pm Location: Fields Institute, Room 230 Abstract: Some of the most important problems in geometricgeometric flowsflows are related to the un

From playlist Mathematics

Video thumbnail

Separable Differential Equations

Differential Calculus lecture focusing on Separable Differential Equations.

From playlist Anti-differentiation & Differential Equations

Video thumbnail

V. Guedj - Quasi-psh envelopes and supersolutions

Using and extending an approximation process due to Berman, we show that the quasi-psh envelope of a viscosity super-solution is a pluripotential super-solution of a given complex Monge-Ampère equation. We apply these ideas to Kahler-Einstein geometry (joint work with H.C.Lu and A.Zeriahi)

From playlist Complex analytic and differential geometry - a conference in honor of Jean-Pierre Demailly - 6-9 juin 2017

Video thumbnail

Worldwide Calculus: Separable Differential Equations

Lecture on 'Separable Differential Equations' from 'Worldwide Differential Calculus' and 'Worldwide AP Calculus'. For more lecture videos and $10 digital textbooks, visit www.centerofmath.org.

From playlist Worldwide Single-Variable Calculus for AP®

Video thumbnail

How to electropolish aluminum

I show a basic electropolishing technique that requires no special equipment and has proven to work well on aluminum (aluminium).

From playlist Chemistry and Materials

Related pages

Classification of electromagnetic fields | Lie group | Metric tensor | Exact solutions in general relativity | Characteristic polynomial | Kerr–Newman metric | Monochromatic electromagnetic plane wave | Vacuum solution (general relativity) | Reissner–Nordström metric | Trace (linear algebra) | Stress–energy tensor | Maxwell's equations in curved spacetime | Einstein tensor | Electromagnetic tensor | Lorentz group | Newton's identities