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"Veritasium" (YT) - "The Big Misconception About Electricity" ?
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nixxon:
Yes. He brings the peace pipe. And he admits he should have paid more attention to the details. I am pleased to see that he made this video. Dave will be somewhat surprised by that.
Sredni:

--- Quote from: bsfeechannel on April 28, 2022, 07:22:35 pm ---
--- Quote from: EEVblog on April 28, 2022, 01:15:16 pm ---FYI, Derek has done his follow up video, it's on his Patreon account for early access so I won't link to it here.
It's very good and adds lots of new detailing while admitting the lumped circuit model is the easy and obvious way to analyse it.
Although no mention of quantum electrodynamics, but I can understand how that might derail the video.

--- End quote ---
I haven't seen the video yet. But the lumped circuit model as an easy and obvious way to analyze it was never the subject of his video or this thread.

--- End quote ---

I just watched the video. And by saying that the transmission line model (which uses lumped circuit elements) offers "another way of talking about the effect the electric field that the bottom wire has on the top wire" he went into the wrong. Because while the effect can be seen "expanding out at roughly the speed of light", the phenomenon taking place in the first capacitors across the lamp is - exactly because those capacitors are lumped elements - istantaneous. Something we discussed in this thread.


--- Quote ---I'm looking forward to seeing his video and I hope it helps to interrupt this trend, among some so called engineering "influencers" at least, of attacking the ones who manage to bring profound concepts to the masses and dissipate misconceptions even among engineers.

--- End quote ---

Nah, it was a social special operation.
Admitting to some alleged 'errors' in order not to alienate viewers from other channels (like the 1/c trivia, or the lack of deeper explanation and apparently saying the the transmission line model is fine - no it isn't as Rick Hartley snippets points out at the end of the video).
But from the comments one can see it works a charm: now everybody is claiming victory - they were all right all along.

bsfeechannel:

--- Quote from: Sredni on April 29, 2022, 05:53:20 pm ---Nah, it was a social special operation.
Admitting to some alleged 'errors' in order not to alienate viewers from other channels (like the 1/c trivia, or the lack of deeper explanation and apparently saying the the transmission line model is fine - no it isn't as Rick Hartley snippets points out at the end of the video).
But from the comments one can see it works a charm: now everybody is claiming victory - they were all right all along.

--- End quote ---

For sure and saying to his audience to watch the videos of the other "influencers" that called him outright wrong is a witty but classy retort.

However he confirms two things that restored my faith in humanity: the energy is in the fields and that the lumped model induces misconceptions. And this undermines the idea that engineers created a bunch of "alternative" theories to explain the phenomena with which they routinely deal.

Thank you Derek. Now we can witch-hunt those engineers. Gentlemen, grab your torches and pitchforks!

aetherist:
We see the scope screen showing the green input pulse V & the yellow induced V traces for about 26 seconds.
Derek duznt show us where the 3.3 ns can be seen on the screen.
Derek duznt explain any/all of the rises & falls & variations in the V's.
Derek duznt tell us details of the (very fast) scope, ie how fast.  Why didn’t they use the fastest mode?
Nor any detail of the input pulse, apart from it being 18V. It was supposed to be a lead acid battery & a switch.

I saw about 100 mistakes & shortcomings, in about 23 minutes – that’s about one per 14 seconds.
But otherwise Derek makes a goodish explanation of the (failed) old electricity explanation, or at least of the Poynting Vector version (however the standard Poynting Vector explanation is wrong)(all of the energy aint in the fields)(most of it is in my elektons).
Derek duz a goodish job of explaining that the drifting electron version of the old electricity explanation is wrong.

Very disappointing.  I can see that they steered clear of doing a detailed examination/explanation (koz there is too much weird stuff going on).
And, AlphaPhoenix will also steer clear, when he duz his Pt2. Remember, he said his brain melted.
It looks like it will be up to me myself to explain Veritasium's screen. I will be back.
YurkshireLad:

--- Quote from: aetherist on April 29, 2022, 11:18:10 pm ---We see the scope screen showing the green input pulse V trace & the yellow induced V trace for about 26 seconds.
Derek duznt show us where the 3.3 ns can be seen on the screen.
Derek duznt explain any/all of the rises & falls & variations in the V's.
Derek duznt tell us details of the (very fast) scope, ie how fast.  Why didn’t they use the fastest mode?
Nor any detail of the input pulse, apart from it being 18V. It was supposed to be a lead acid battery & a switch.

I saw about 100 mistakes & shortcomings, in about 23 minutes – that’s about one per 14 seconds.
But otherwise Derek makes a goodish explanation of the (failed) old electricity explanation, or at least of the Poynting Vector version (however the standard Poynting Vector explanation is wrong)(all of the energy aint in the fields)(most of it is in my electons).
Derek duz a goodish job of explaining that the drifting electron version of the old electricity explanation is wrong.

Very disappointing.  I can see that they steered clear of doing a detailed examination/explanation. And, so will AlphaPhoenix, when he duz his Pt2. It looks like it will be up to me myself to explain. I will be back.

--- End quote ---

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