by Higgsy » Sun Mar 01, 2020 10:03 am
crawler wrote: ↑Sun Mar 01, 2020 2:56 am
Higgsy wrote: ↑Sun Mar 01, 2020 1:26 am
crawler wrote: ↑Fri Feb 28, 2020 8:35 pm
Higgsy wrote: ↑Fri Feb 28, 2020 2:25 pmcrawler wrote: ↑Thu Feb 27, 2020 8:44 pmI see that that article says that Faraday & Maxwell were the fathers of electricity. But they did not understand their child. Electricity was later better explained by Heaviside & by Ivor Catt.
Which one?
Heaviside was the first to say that the energy was outside the obstructer (rather than a flow of electrons inside the conductor). Ivor Catt in perhaps the 1970's added that there was no such thing as static charge in a capacitor, & explained faux-IAAAD in circuits.
Heaviside reformulated Maxwell's equations in vector calculus as we use them today and Catt has a completely eccentric EM theory that isn't accepted by anyone. They don't agree. So which one?
Heaviside mentions that an electric current is actually a slab of E by H energy current propagating along at the speed of light in the medium (eg insulation) covering the obstructer (conductor).
Well, that's not quite what Heaviside's work on transmission lines says. You need to distinguish between electric current and what he calls energy current. Heaviside never said that there is no flow of electrons in the conductor. In any case, there is no controversy about Heaviside's analysis of transmission lines. See, for example Matar and Welti, Surface charges and J H Poynting's disquisitions on energy transfer in electrical circuits, Eur. J. Phys. 38, 065201
And Ivor Catt agrees, & Forrest Bishop & many others agree, & i agree.
Who is Forrest Bishop? As I say, no-one accepts Catt's eccentric theory.
So, which one?
[quote=crawler post_id=1165 time=1583031363 user_id=30412]
[quote=Higgsy post_id=1162 time=1583025991 user_id=30122]
[quote=crawler post_id=1135 time=1582922118 user_id=30412]
[quote=Higgsy post_id=1129 time=1582899946 user_id=30122][quote=crawler post_id=1113 time=1582836281 user_id=30412]I see that that article says that Faraday & Maxwell were the fathers of electricity. But they did not understand their child. Electricity was later better explained by Heaviside & by Ivor Catt.[/quote]Which one?[/quote]Heaviside was the first to say that the energy was outside the obstructer (rather than a flow of electrons inside the conductor). Ivor Catt in perhaps the 1970's added that there was no such thing as static charge in a capacitor, & explained faux-IAAAD in circuits.
[/quote]Heaviside reformulated Maxwell's equations in vector calculus as we use them today and Catt has a completely eccentric EM theory that isn't accepted by anyone. They don't agree. So which one?[/quote]Heaviside mentions that an electric current is actually a slab of E by H energy current propagating along at the speed of light in the medium (eg insulation) covering the obstructer (conductor).[/quote]Well, that's not quite what Heaviside's work on transmission lines says. You need to distinguish between electric current and what he calls energy current. Heaviside never said that there is no flow of electrons in the conductor. In any case, there is no controversy about Heaviside's analysis of transmission lines. See, for example Matar and Welti, Surface charges and J H Poynting's disquisitions on energy transfer in electrical circuits, Eur. J. Phys. 38, 065201
[quote] And Ivor Catt agrees, & Forrest Bishop & many others agree, & i agree.
[/quote]Who is Forrest Bishop? As I say, no-one accepts Catt's eccentric theory.
So, which one?