Reactions to Veritasium's Electricity, Maxwell's Laws & Relativity! PREVIEW of next 12 videos!
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- Опубліковано 4 лип 2024
- Reactions to Veritasium's AC and DC claims, a new way to think of Maxwell's laws and a history of relativity and E=mc^2 all previewed in this informal video!
My website: www.KathyLovesPhysics.com
My book "The Lightning Tamers" on Amazon: amzn.to/3I7N4mq
Patreon: www.patreon.com/user?u=15291200
AudioBook Go Fund Me: gofund.me/87e9391a
Veritasium's Videos:
"Big Misconception about Electricity" • The Big Misconception ...
"How Electricity Actually Works" • How Electricity Actual...
Electroboom
"How Right is Veritasium?" • How Right IS Veritasiu...
GREAT Faraday Video:
"Prelude to Power" • Prelude To Power: 1931...
Schmigadoon
"Talk to Daddy" • Schmigadoon! - Talk to...
Broadway by Ghostlight's review of Episode 1 Season 2 where they talk about "imperfect rhymes" • Schmigadoon! 2X01 BREA...
Transformers Video: • How does a Transformer...
0:00 Why 12 Videos?
0:29 Part 1: Veritasium
3:51 Transformers - Part 1
6:41 AC Current - Part 1
7:35 DC Current - Part 1
8:45 & Physics Song - Part 1
10:20 Part 2: Maxwell's Revisited
10:36 Maxwell's Mistake - Part 2
12:10 Maxwell's Great Idea - Part 2
12:49 Heaviside's Influence - Part 2
14:47 & History of SI Units - Part 2
15:51 Part 3: E=mc^2 - Part 3
16:01 Lorentz's Relativity - Part 3
17:16 E=mc^2 - Part 3
17:47 Meaning of E=mc^2 - Part 3
19:47 Why Relativity is Controversial
20:15 Other Plans
I get a kick out Kathys approach to science. Her ebullience and joy are inspirational and invigorating. Thank you Kathy!
Thank you
Where has she been all my life?
@@Kathy_Loves_PhysicsCan you please answer these 3 questions (thanks in advance):
- What were and are the ramifications of Lorentz's symmetrization of the Heaviside equations in 1892, and the continuing symmetrization of these equations today as the "electrical engineering model"?
- What powers an electrical circuit, or what actually powers the electrical power grid?
- There is the "source charge problem" or "the problem of the association of the fields and potentials and their energy, with their source charges". The charge sits there and pours out observable EM energy in 3-space in all directions, with absolutely no observable EM energy input. Piece of cake to prove that experimentally, anytime, anywhere so it's well-known. Either this "most difficult problem in classical and quantum electrodynamics" must be solved, or else one has totally destroyed the conservation of energy law itself. This is a recognized formidable problem, but very much "swept under the rug" and never discussed in "polite circles". So the question is: how does the energy gets input to a source charge or a source dipole in the first place?
Kathy, one thing immediately came to my mind as I was listening to this. You really need to eat well, get exercise, plenty of sleep, and generally take care of your health because you’re going to need to live a really long time if we are going to get all of the great content mentioned. I for one I am very much looking forward to all of it!
Wonderful advise for a wonderful physicist and historian.
So true. Kathy's presentations are so full of passion that it makes one think they should learn everything she knows!!!!!
This is how a science beef should be handled, not just calling someone out, but breaking down their argument and finding common agreements, and find where you differ and design experiments to try and zero in on actuality... I do hope Derek and Kyle Hill are watching 😀
Thank you and me too 🤣
Looking forward to the videos but I have a question how can you have induction (in transformers) without electric field? Please cover induction and field theory
@@sayanchx I think (I ned to watch Kathy's video to be sure) the electric field sets up a magnetic field that induces an electric field in the second coil....but we will see how Kathy deals with it...
@@Kathy_Loves_Physics will the response video include an explanation for Derrick’s long wire gap question? Or is it the same principle as the transformer?
Knowledge of the subject like she has is a plus 😊
0:08: 🎥 Kathy Joseph previews the next 12 videos she plans to make, which are a response to a video by Derek Muller on misconceptions about electricity.
3:35: 🔌 The electron's kinetic energy does not come from the battery, but rather from the collision within the circuit.
6:42: 🎥 The speaker discusses the transfer of energy in alternating current and how it is similar to the motion of sound.
9:43: 🎵 The speaker discusses a video on electrical power and physics, including imperfect rhymes in the song.
13:10: 📘 Oliver Heaviside's contributions to vector analysis and understanding of Maxwell's equations were impressive and undervalued.
16:39: 📚 The videos discuss the history and concepts related to the aether, Maxwell's displacement current, Michelson-Morley experiment, Lorentz's equations, and the development of E=mc^2.
20:15: 😅 The speaker is feeling stressed and hasn't finished anything due to moving but has done a lot of research and preparation.
Recap by Tammy AI
Thank you Tammy!!
Sounds like exciting times ahead. Can't wait for all these educational videos. 👍👍👍
Engineers are really lucking up. 👍
I love your videos, because if there is a voice who resonate from the history of science, that is yours. I really appreciate the time you invest reading authors original papers, and how you explain all to us. Thank you Kathy.
Thank you for your lovely comment
@@Kathy_Loves_PhysicsI’m really enjoying your content and look forward to what’s coming next. While I purposely avoided Veritasium’s video, as well as Electroboom’s attempt at being cute with the topic, I find your take on the science behind all this electricity “stuff” much more educative and your energy when you present the topics is energizing… gives the desire to learn more. I think Tesla had a belief in the “skin effect” regarding the movement of current. In his presentation to the precursor to the IEEE in Philadelphia, when he lit himself up like a candle and explained that he could make it appear as if he was on fire, were he able to produce higher frequencies, he mentions that he knew the current would not harm him despite the high voltage because it travels outside the conductor. In this case himself. I think he explains it in more depth in the deposition for the Marconi trial if memory serves me right. Good read if you have the time.
@@Kathy_Loves_PhysicsWhat he said. 👍🙂
@@7sArts Well, it isn't! Science history isn't science present! Maxwells equations are just math to work with observation of old science theory and not "Scientific Theory" (Big difference), descriptive of quantifiable forces and energies and their behaviors across the electromagnetic spectrum, AKA "Classical electromagnetism" which although still valid in usability, although to greater precision now, and have been supplemented many times since 1816, and unified with quantum physics and now we have "Quantum-electrodynamics" which is our current "Scientific theory", and Veritasium is correct in all aspects, and he only covered a single topic in that video within the whole grand scheme of things!
If you go to the past to get your world view, when you live in the present, then you may as well join the flat earthers, electric universes, raki masters, astrologers... or something.
@@Ni999😂
Kathy, I am a ham radio operator and former broadcast engineer. I believe it is the "dielectric" that is the medium where the energy is stored and travels within on a transmission line. I use a balanced line to feed my antenna in the shack. It is the space between the two parallel conductors that holds the energy and propagates it down the line from the transmitter to the antenna (load). Same is true in our grid. The only difference is that the grid is a vastly slower frequency of alternation.
There is always inductance and capacitance in every wire and any flow creates eddy currents within, which force the flow to the surface of the wire where it encounters less resistance to the flow. The dielectric is the space between the conductors. That could be two parallel wires like in a lamp cord, or it could also be a much wider separation ie. between the high tension line and the Earth (neutral) below. It could also be the very small gap of space between atoms where the electric fields change position.
We are taught the belief that electric current flows in a wire when we are in grade school, and that it behaves like water. This is where the problem starts.
It isn't until the student gets to M.I.T. or other proper engineering university that it is made clear on a subatomic level that most of the books are outdated and incorrect.
Just my $0.02
Looking forward to your next video. They are always FANTASTIC!
I agree. if you think that electricity travels down the conductor then you are really stuck trying to explain aerials and waveguides. I seem to recall that the electricity that did travel down the conductor accounted for the loss of power, the I²R effect.
Do you find ladder line better than coax? I put up a hustler multiband verticle and use coax,I never tried ladder line before. Thanks.
The problem occurs if the dielectric is the vacuum. That's when you start falling into the virtual particles and vacuum energy quagmire that can't be an aether..
That's bad enough with a 4d-space time that isn't cartesian, without the astronomers then adding in a long term 'expansion/growth' dimension..
@@philipoakley5498 an em field (light) is perfectly happy traveling in a vacuum. How do you think light gets here from the sun or distant stars?
@@dhonors999 It was a response to @WECB640 who 'suggested' (implied) that a dielectric was necessary for transmission, and that is where the energy is 'stored'. But a vacuum is supposed to be 'empty', hence the discussion.
There's also the wave-particle duality 'arguments' (wave folks say that that waves exist 'everywhere', and that particles exist 'nowhere' - they're just points!), so we aren't even sure if the gaps are full or empty. All good fun!
7:15 The classic demonstration that we all do in our Physics classes demonstrating longitudinal waves with a spring, shows how the spring does not go anywhere, but still transfers energy from one end to the other.
But one end of the spring is "physicaly" connected to another. There''s no gap between.
@@shoutitallloud What does that have to do with my description of the demonstration?
When you start a sentence with but, it means you are refuting what I wrote, so please explain the refutation, because what you wrote makes no sense without context.
If I wrote something like I woke up this morning, the sky was blue and the sun was shining brightly, there would be somebody like you who would find a way to dispute what I wrote.
Dear Kathy. Do not forget Mr Poynting and his vector S = E x H ( the cross product of electric field and magnetic field ) that actually transport energy ( per time and area) and that is also what happens outside a wire that transport current. There is a magnetic field and there is also an electric field. And yes if you calculate like this you actually get the same result as you get by multiplying current in the wire with the voltage . So no contradiction. It works nicely transporting energy across a capacitor.
BTW the electric field at the surface of the wire is curved so that some power enters the wire, that is how the wire get warm from the current.
And do not forget that electrons emit an electric field, inside the wire.
Agreed. Her explanation of how energy "flows" from one coil to another in a transformer, is a non-explanation. Not mentioning the fields in that process is a dereliction of duty. Did she watch the Veritasium video?
@@astronomianova797 She says it quite clearly at 4:18. A changing current induces a current on the other coil via "induction". This is the "major" effect when discusses transformers. There are some capacitive effects but these are not as large in inductors. While Veritasium correctly points out Poynting Vectors and also highlights Transmission Theory, The Veritasium video is wrong on many levels regarding basic principles, which he simply negates as never being true, specifically the claim that electrons do not participate in electricity as well as the claim that electricity is not "in" the wire. People need to stop swapping cause and effect. The "cause" of electricity is a moving charge. For induction, You can have an changing magnetic field, but if it doesn't land on a charged particle of some kind, there is no "Electricity". Scientists have demonstrated this many times. For Induction, You need a changing magnetic field and a conductor (with free electrons = charged particle) to result in a current of some kind (or potential if the circuit is incomplete). You can also have electricity via accumulated charges that move. Or via movement of charge via chemical means... it always (AFAIK) requires a moving charge however.
Veritasium is misconstruing small effects of Transmission Theory with the large effects of current flow due to charged particles. It is two different aspects. Transmission theory provides for very very weak transmission of electrical energy which is essentially severely weakened by the distance between two conductors. Electrons mediate electricity by their close proximity in a wire. As they move in the wire, current flows. We see this experimentally... when you disconnect a wire from a circuit in the house, the lights turn off. There is not a "continued" circuit that magically jumps the wires other than microvolts from Transmission Effect. Additionally, this effect is simply mediated by the same principles of charge and induction, just at a far greater distance. Most certainly, the electricity going from the Utility to the house and back, is 99.99% electron mediated. The rest of it may exist, but is too small to be useful for household appliances.
Thanks Dunning & Kruger for your wonderful insight that are proven time and time again in the comments section.
I love your happy energy and your review of things I haven’t thought of for years brings back fond memories. ❤
Sounds GREAT!
Dave! I was going to email you today and suggest that you might like this video and lo and behold you beat me to it.
Dave! It's so cool you're a Kathy fan.
Glad you’re back, looking forward to your new videos and books.
Derek's video is pretty much correct. The energy in a circuit is transferred in the fields. This is clear from calculating the poynting vector field. The circuit is acting as a waveguide, and currents are just a consequence of the fields. It feels like currents are more important than they are bc that's what is easily measurable about a circuit.
Kathy, I think you are the best science teacher I have come across in my 50 years of study. I very much appreciate the texts taken from original papers you show in your videos. So I think audio tapes might be best made simply by using the audio from your videos. People could look up the videos later, thus getting the text references at their convenience later. I'll be trying your audio tapes once they come out, but I'm already v. happy with your videos.
Thank you so much
Wow I think I have hit a jackpot, going through the same chapter in my NCERT and have a question that why flow of charge in a particular direction does change the game when we only care about the energy dissipated , hoping to clear all my doubts with beautiful historical insight, the way that I adore.
Looking forward to all of these! I sometimes feel like Maxwell's Equations are in the past for me. Something I've already studied and learned. But this makes me feel like there is still more to learn from other perspectives that I haven't thought too much about.
I cannot wait. You managed to hit 3 of my favorite things to talk about: where energy is at, the importance of the A field, and the displacement field! Where energy is at is a problem that comes up in almost all areas of physics and can be very confusing. This is also complicated by gauge invariance, in which different people will see a problem completely differently. One person may even see pure energy while another sees pure momentum. (They are of course related through the momentum-energy 4-vector). The vector potential is so wonderful in that almost every advanced theory depends on it and that pesky thing called gauge invariance. I have a feeling that we will disagree about the displacement field though. I understand that believing in aether caused researchers to go down the wrong path but it has the advantage of leading to some very cool results like the Maxwell stress tensor and why it is so similar to polarization current, it also gets rid of that annoying action at a distance thing. Anyway, sorry about this way too long rant. It just means that I am really excited to see your view on these things.
Kathy, I am really looking forward to the new upcoming videos. I appreciate your work!
I didn’t expect this but I’m happy you reacted to it!!!!
Your love and enthusiasm about everything physics is contagious!
So glad I found your channel, please keep it up and all the best!
Oh boy. So very excited for these next videos. Love your teaching style and songs.
Welcome back, Kathy. Looking forward to your new series.
I Love your Videos Kathy. They are loaded with Great information! Please keep them coming.
Keep up the amazing videos Kathy, your channel is a true gem of physics education.
Love your enthusiasm and love these very informative videos. Best wishes from Scotland.
That's great. Your enthusiasm spills over and I'm glad you enjoy doing this as much as we enjoy listening.
Glad to be getting more videos. Welcome back!
Hello Kate, it´s SO nice to see you back on the channel again! :-)
Love your enthusiasm! Its really motivating, thank you!
I am a great admirer of both Heaviside and Maxwell.
Jointly with Newton they are the three greatest Classical theoreticians in the History of Physics.
A pity I am retired from teaching Physics. Your YT videos are of a great assistance to the comprehension and teaching of our beloved Science!
My kind of geeks! :)
What a treat. You do good stuff. But no rush for the next one. The wait always makes it better.
Love all your videos.Looking forward to the new series.
We can't wait!! You're the best!
So excited for this series!
I’m psyched to see your new videos ! Love your work.❤
So excited for all these upcoming videos! Please keep your content going your videos are amazing!!!
Thanks
Looking forward to it Kathy!
Anticipating your videos greatly. Thanks for your efforts
Love your Channel Kathy... Your a great teacher... Can't wait for the new videos
Brava....love watching your breathtaking videos.
Glad to see you back man I missed it a lot.
Great videos Kathy - You Rock
Congratulations on your new home.
I'm eagerly anticipating your next series of videos.
I am very excited by the upcoming videos Kathy.
I just found your channel, I loving the way you describe these scientific principles and the level of detail you go into. I'm excited to get thought your back catalogue and the planned future videos sound awesome!
Awsome,love your work!
OK, already looking forward to these series!
Glad to see you have so much in the pipeline. I've enjoyed and learned a lot from your contributions already.
As always, love your videos.
Moving is very stressful for me, so I'm surprised you were able to be productive so soon after the move. Looking forward to the upcoming series! Love your enthusiasm! If I may humbly make a suggestion, please consider getting a lav mic to improve the audio quality of your talks. I'll have to rewatch some older videos while waiting for the new ones! :)
Nice topics! Looking forward to seeing those videos sometime :D
Looking forward to your lectures 💞
Looking forward to it!
commendable. good work and stimulating line of thought.
Very inspirational insighta.Thanks for these efforts
Always amazing episodes..keep it up
Right on. Thanks for sharing.
You make some of the best videos on the history of physics with a lot of detail. I'm impressed.
Eagerly waiting for your videos.
Love ya Kathy!
Thank you and love this
I am eager for these videos! you have a very envious complexion
So looking forward to seeing this. I am excited!
I look forward to watching the video series. ❤
Can’t wait for this series!
Eagerly waiting 😍
I love your videos. As someone who is an electrical engineer and loves the history of the science your channel is not only informative but also entertaining. Thank you for all the great work!
I love how all that knowledge keeps wanting to escape from you Kathy, you are a true inspiration
Can’t wait!
Gosh...I love you. Such a valid explanation. Simple. Thank you.
Why is it that your videos, intended to bring physics to the masses, to me feels like a master's degree class! I am working on my travel schedule for the next year, trying to coordinate it so I don't miss any of your videos, having a hard time predicting their release. Serious though, you are headed for the Physics Hall of Fame. Keep it up, keep healthy, and don't worry a bit about my travel schedule. I can easily interrupt a visit to the ancient Mayan Ruins at Copan to correct to the internet and watch your video from there.
My goodness, your plans sound fabulous. I wish I could help you with the scheduling but even I cannot coordinate it as they often take far longer than I was expecting. Remember that they stay on the internet, so have fun at Copan and maybe a new video will be waiting for you on your return! :)
Hmm, the great thing about UA-cam is that you can watch anytime after the video is uploaded!
Looking forward to your new content, as always!
I loved James Burke's Connections series. When I discovered Kathy, it was like a continuation of that but with much more detail, and with a focus on electricity. Kathy, I surely look forward to as many more videos as you can find it in yourself to produce!
Very nice thank you,
Glad to see you back, seems you are inspired by the knowledge and sharing with others/ us.
So glad you're back! I missed your energy! And your eeeeelectriicitty, eeeeeleeectricccity
A Good review of Heavyside.
Thanks!
Great! Looking forward to your videos !
7:53 Actually there are extra charges on the surface of the wire. For a good explanation, see e.g. “A semiquantitative treatment of surface charges in DC circuits” Am. J. Phys. 80 (9), September 2012
Looking forward to all those videos.
Wow! Thank you. Discovered a treasure this morning!
Am just as excited to learn from you. Thank you.
Looking forward to the new videos. It has been a long time since I studied Maxwell’s equations. Obtained a BSEE in ‘87; now retired.
I love your stuff!
Kathy's back! Fantastic video as always
Thanks, so happy to be back!
Fantastic! Can't wait for this series. I'll stay tuned!
Thanks! I was going to say that I am excited but I guess that was obvious by the video
@@Kathy_Loves_Physics for sure and it's wonderfully contagious :)
This made my day. Will watch every video.
I enjoyed your book and look forward to your next (and have funds sitting in your audio book go-fund-me) .. Nice to see you back making videos, I'm sure vertasium will be happy to see you comenting on his episode..
I am ready - you are an interesting narrator with topics I find interesting - so thank you for that.
Great preview about your up coming videos, I'm looking forward to them. I'm surprised how much discussion Veritasium's video kicked off. For me it was "oh how does that actually work?"
Another, more visual representation of current would be the analogy of a locomotive coupling to a train of freight cars. Each car only moves a small amount, but you can actually see the shock wave travelling through the train at a fairly high speed.
This was used as an example of waves when I was a kid in UK. Fortunately or unfortunately the braking systems have changed so the wagons don't do this as much now.
I was thinking the water analogy works well still-especially after Kathy reminded me of power alongside voltage and current. So then we get:
• power analogous to the volume of water
• current as the flow of water
• voltage as the pressure of water
• (resistance perhaps analogous to those sprinkler hoses with pinholes poked in them so that a regular hose is analogous to a superconductor of the water)
A step transformer is like when I put my thumb over the end of the hose so that the pressure rises, the flow diminishes but the product of the two (the volume of water) remains constant
I imagine this has been articulated before, but it seemed missing from the presentation in this video.
@@robburns1ne I would agree totally. For explaining the basic concepts these analogies work well for the complete layperson. It is the process of telling them to forget all this, it's just an analogy, when you have to explain further is where the problem starts😊
Waiting impatiently!
Amazing news! Can't wait for all those videos to drop.
Please also do a video on the Ralph Juergen's Electric Sun Model
I’m really looking forward to these videos, as an electrician I love your videos Kathy, Regarding electricity transmission being outside the wires, physicist Paul M Sutter (ask a Spaceman podcast and UA-camr) has also spoken at length about this, also has compelling arguments to agree with the Veratasium view
I Can't wait....
You are amazing!! I can really feel ur love for Physics. Wish I had u as a teacher at university🙏🏾
I can’t wait!!!
Go Kathy!
Hi Kathy... wow! You have set out to do a lot of stuff... I also live in the SF Bay Area, I'm in Hayward... I have a copy of your book too... I enjoy your "energy" and enthusiasm... hope you can get those videos out I really look forward to watching all of them 🙂
Yes! More interesting things coming up!
Looking forward to the next series of videos.
Thanks Kathy. I think you timing is perfect. There were a lot of quick responses to the Veritasium video and think it is a good time for a more thorough response. I think your sound transmission is a great example of how waves can transmit energy.
I love this video and I hope I can enjoy and study the three videos that you are going to offer + the bonus video. Congratulations I like your sympathy.
I. CANNOT. WAIT.