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What are your thoughts on this presentation on the concepts of electricity?

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Hazel1919

Sun Jul 29 2012, 01:15PM

Registered Member #1376 Joined: Wed Mar 05 2008, 08:31AM
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Posts: 49

Dear all, I am interested in your opinions on the following video.

I thought it was very interesting, regarding the history of the subject and how these ideas were formulated.

On a side note, does anyone know how I can get hold of 'A History of the Theories of Aether and Electricity' by E.T. Whittaker? I have checked Ebay and scribed and amazon.

Avalanche

Sun Jul 29 2012, 06:09PM

Registered Member #103 Joined: Thu Feb 09 2006, 08:16PM
Location: Derby, UK
Posts: 845

Haven't watched the video, but you got me searching for the book because I hadn't heard of it, there's a PDF here -

Mattski

Sun Jul 29 2012, 06:55PM

Registered Member #1792 Joined: Fri Oct 31 2008, 08:12PM
Location: University of California
Posts: 527

At 4 hours long you won't find many (if any) people here willing to watch the video. Dollard seems to be your run of the mill pseudo-scientist who thinks that there are problems with accepted classical electromagnetic theory but doesn't have any data to prove it =/

Chip Fixes

Sun Jul 29 2012, 09:36PM

Registered Member #3781 Joined: Sat Mar 26 2011, 02:25AM
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Posts: 701

you might try searching on google books

Hazel1919

Mon Jul 30 2012, 07:51AM

Registered Member #1376 Joined: Wed Mar 05 2008, 08:31AM
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Posts: 49

Avalanche and Camp Badger, thank you so much. It turns out that Google books has it! This is apparently an important book for anyone who want's to gain a deeper understanding of the electrical phenomena because it details all the experiments and observations from the time of Plato to the first quarter of the 20th century, now that is a broad scope! You can see how they went about there observations and experiments too.

Mattski, do you feel there are no problems with accepted classical electromagnetism?

One of the points I gleaned from this presentation is that 'electricity' flows, not through wires or metals, but between the two wires, where the magnetic lines of force form concentric circles around the wires and the electric lines of force terminate on points on the wire (what you would call protons and electrons).

,r:12,s:79,i:43

Steve Conner

Mon Jul 30 2012, 09:32AM

Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706

Plasma wrote ...

One of the points I gleaned from this presentation is that 'electricity' flows, not through wires or metals, but between the two wires, where the magnetic lines of force form concentric circles around the wires and the electric lines of force terminate on points on the wire (what you would call protons and electrons).

This is correct, if by "electricity" you mean electric power. It's all in Maxwell's equations and the Poynting vector.

Classical electromagnetism has well-known shortcomings, but none of them is apparent with energy levels achievable in the home

The problems are in how it fits together, or fails to, with quantum mechanics and gravity.

Uspring

Mon Jul 30 2012, 03:34PM

Registered Member #3988 Joined: Thu Jul 07 2011, 03:25PM
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Posts: 711

Classical electromagnetism has well-known shortcomings, but none of them is apparent with energy levels achievable in the home The problems are in how it fits together, or fails to, with quantum mechanics and gravity.

Classical electromagnetism and quantum theory are quite happily married together in quantum electrodynamics, which is probably the most successful and accurate theory in physics altogether. One might have some issues with renormalisation.

Steve Conner

Mon Jul 30 2012, 04:01PM

Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706

I have an issue with renormalisation: it's ugly

However I'm no physicist and wouldn't know where to start coming up with something better.

Mattski

Mon Jul 30 2012, 04:36PM

Registered Member #1792 Joined: Fri Oct 31 2008, 08:12PM
Location: University of California
Posts: 527

Plasma wrote ...

Mattski, do you feel there are no problems with accepted classical electromagnetism?

Much like classical mechanics, classical electromagnetism seems to be the correct model for phenomena which do not fall into the quantum or relativistic domains. Actually magnetism is consistent with special relativity applied to electrostatics but there may still be other relativistic effects on EM. Perhaps someday these domains will all be unified, but even if/when they are classical analysis will likely still dominate as it works fine for most problems.

I skimmed over various articles by and about Dollard which explain his ideas on "dielectricity", scalar waves, and longitudinal waves, and attempt to apply these to Tesla coils and wireless energy. I didn't notice anything which explained a phenomenon that classical electromagnetism couldn't explain but Dollard's theories could. Perhaps you could present or refer us to an example?

Uspring

Mon Jul 30 2012, 06:31PM

Registered Member #3988 Joined: Thu Jul 07 2011, 03:25PM
Location:
Posts: 711

I have an issue with renormalisation: it's ugly However I'm no physicist and wouldn't know where to start coming up with something better.

If you're an engineer you shouldn't have an issue with a well working kludge

Mattski wrote:

Much like classical mechanics, classical electromagnetism seems to be the correct model for phenomena which do not fall into the quantum or relativistic domains.

I suppose you don't refer to Maxwells equations by "classical electromagnetism". The Maxwell equations are covariant and conform to special relativity.

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