Tuesday, September 24, 2024

Maxwell's equations describe charges in conducting objects?

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In our September 18, 2024 blog post we had a negatively charged cylinder, and an electron e- moving close to it. We encountered a paradox: t...
Friday, September 20, 2024

Poynting vector in a coaxial system

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Let us look at the problem which we recognized in the previous blog post.        ----------------------------- -  outer cylinder wall       ...
Wednesday, September 18, 2024

Biot-Savart derived from Coulomb's force

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UPDATE September 23, 2024: Electromagnetism is not  "linear" if we take into account the field energy. If electric fields E₁ = -E₂...
Friday, September 13, 2024

Lorentz covariance of electromagnetism

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In the summer of 2023 we suspected that Lorentz covariance does not work correctly in electromagnetism. Let us return to this question. http...

Zile and Overduin: Biot-Savart law from special relativity and Coulomb's law

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On December 17, 2023 we claimed that we can derive the Biot-Savart law from Coulomb's force and a few additional assumptions. But the as...
Wednesday, September 11, 2024

Electromagnetic lagrangian: correcting it with special relativity

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Our August 28, 2024 post suggests that the electromagnetic lagrangian (or action) does not understand the kinetic energy of two overlapping ...
Tuesday, September 10, 2024

Special relativity and moving pressure

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In our August 28, 2024 blog post we were confused about if the horizontal Maxwell stress tensor pressure in the sum field E + E' "m...