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Visualizing Electricity

demystifyingscience.com

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Re: Visualizing Electricity

#21

Post by mickfaraday »

acqq wrote: post #18
ly wrote: post #8

In case the author of the video reads this: I tried to watch it but after 2 minutes I just had to turn it off as I couldn’t handle that music anymore. It’s extremely distracting when you try to listen to what the narrator is explaining. It’s not that I don’t like background music in explanatory videos, but this music is way too loud and complex to not distract. Also, considering the video is uploaded to YouTube, I wo…

> It’s not that I don’t like background music in explanatory videos And I'm totally against it. It is always distracting to me. If I'd want to have background music I could play it myself, and it would match my choice. The only videos that should have background music is where the music is in any way an important element of the story, e.g. if the topic is the work of an artist or composer. Otherwise, it is distractin…

noted.

Re: Visualizing Electricity

#23

Post by centimeter »

mickfaraday wrote: post #6
centimeter wrote: post #5

I’m not sure how this visualization is better than the hydrodynamic visualization, but it’s worse in one very important way - it uses “rotation” as a metaphor when angular momentum and spin are already very important. It would be hopelessly confusing to learn this metaphor (which has nothing to do with spin) and then try to disentangle it from your mental model when learning about spin later on.

spin for electrons is actually approximated by spherical rotation: https://www.physics.mcmaster.ca/phys3mm3/notes/whatisspin.pd...

Spin and angular momentum are the same physical quantity - their sum is conserved, but not each on its own. Spin just seems to occur in SU(2) rather than SO(3) if I remember correctly.

Re: Visualizing Electricity

#24

Post by nixpulvis »

nixpulvis wrote: post #19

For a post about visualization, there are surprisingly few graphics in the article. Perhaps they want us to read and visualize, but I was disappointed to be frank.

The video was decent, but lacks depth.

How do electrons with different occupied shells interact, how does this mesh with our existing model?

What analogy fits this model for resistance? Capacitance? Are these electrons spinning on an axis with friction, or something?

How does this model play with RF electrodynamics? Are there similar constructs for the orthogonal magnetic plane?

The list of questions surely goes on...

Re: Visualizing Electricity

#25

Post by nixpulvis »

mickfaraday wrote: post #22
nixpulvis wrote: post #19

For a post about visualization, there are surprisingly few graphics in the article. Perhaps they want us to read and visualize, but I was disappointed to be frank.

yeah, you have to read too. that's a visual process though. did u watch the entire vid?

Yep, sorry. Read my second comment under this thread.

Re: Visualizing Electricity

#26

Post by nixpulvis »

nixpulvis wrote: post #24
nixpulvis wrote: post #19

For a post about visualization, there are surprisingly few graphics in the article. Perhaps they want us to read and visualize, but I was disappointed to be frank.

The video was decent, but lacks depth. How do electrons with different occupied shells interact, how does this mesh with our existing model? What analogy fits this model for resistance? Capacitance? Are these electrons spinning on an axis with friction, or something? How does this model play with RF electrodynamics? Are there similar constructs for the orthogonal magnetic plane? The list of questions surely goes on..…

> Each pair of polar surfaces within an orbital is able to productively contact neighboring atoms.

I have no idea what to visualize for "productively" contacting neighbors in this model.

Re: Visualizing Electricity

#27

Post by mickfaraday »

nixpulvis wrote: post #24
nixpulvis wrote: post #19

For a post about visualization, there are surprisingly few graphics in the article. Perhaps they want us to read and visualize, but I was disappointed to be frank.

The video was decent, but lacks depth. How do electrons with different occupied shells interact, how does this mesh with our existing model? What analogy fits this model for resistance? Capacitance? Are these electrons spinning on an axis with friction, or something? How does this model play with RF electrodynamics? Are there similar constructs for the orthogonal magnetic plane? The list of questions surely goes on..…

Thanks. Yes I think those are great questions that the model (shell-shell contact momentum transfer) can address. All aspects of the existing mathematical description can be built into the shell-contact model but will require serious updates to our animation skills. That being said, I hope we can accomplish those details later. Magnetism, light, and gravity are next on the list, however.

Resistance is inability to conduct; so orbitals are not charged (with a CW or CCW cohesion) on balance. Electricity acting on these non-polarized surfaces leads to heat.

Capacitance has to do with the induction of voltage during separation by an insulator.

Electron spinning is a bit of a simplification; the real concept is angular momentum. In reality it is impossible to deconvolve the contribution of speed and trajectory from momentum. Ideally instead of fast rotating shells as charged, we should animate cohesive motion as well as speed, but that is beyond our present abilities.

RF will come with videos on light later.

Thank you for the comments! Stay tuned.

Re: Visualizing Electricity

#28

Post by mickfaraday »

nixpulvis wrote: post #26
nixpulvis wrote: post #24

Earlier quoted context omitted.

The video was decent, but lacks depth. How do electrons with different occupied shells interact, how does this mesh with our existing model? What analogy fits this model for resistance? Capacitance? Are these electrons spinning on an axis with friction, or something? How does this model play with RF electrodynamics? Are there similar constructs for the orthogonal magnetic plane? The list of questions surely goes on..…

> Each pair of polar surfaces within an orbital is able to productively contact neighboring atoms. I have no idea what to visualize for "productively" contacting neighbors in this model.

imagine your car's gear box when you put the thing into drive.

Re: Visualizing Electricity

#29

Post by mickfaraday »

centimeter wrote: post #23
mickfaraday wrote: post #6

Earlier quoted context omitted.

spin for electrons is actually approximated by spherical rotation: https://www.physics.mcmaster.ca/phys3mm3/notes/whatisspin.pd...

Spin and angular momentum are the same physical quantity - their sum is conserved, but not each on its own. Spin just seems to occur in SU(2) rather than SO(3) if I remember correctly.

it is impossible to deconvolve speed/direction in terms of momentum of the electron, so we simplified the idea with rotation speed. Ideally, the high charge atoms would be more cohesive as well as faster.

Re: Visualizing Electricity

#30

Post by nixpulvis »

mickfaraday wrote: post #29
centimeter wrote: post #23

Earlier quoted context omitted.

Spin and angular momentum are the same physical quantity - their sum is conserved, but not each on its own. Spin just seems to occur in SU(2) rather than SO(3) if I remember correctly.

it is impossible to deconvolve speed/direction in terms of momentum of the electron, so we simplified the idea with rotation speed. Ideally, the high charge atoms would be more cohesive as well as faster.

I'm out of my depth now, but wouldn't this have the same issues in a rotating frame of reference? Surely, if position/direction is conflated, then rotation is too, no?

Or am I way off base?

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