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#veritasium#straycapacitance#poyntingvector

How Wrong Is VERITASIUM? A Lamp and Power Line Story

ElectroBOOM

8.9M subscribers • 3 videos on Hallway

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  • Recommended by 4 people: 4 on Hacker News.
  • Presented by Mehdi Sadaghdar, creator of ElectroBOOM
  • An opinion. It argues one side of a question engineers disagree on.

Intermediate. Assumes working knowledge.

4.3M views4 years ago4 recommendations

HardwareElectronics

Mehdi Sadaghdar analyzes Veritasium's controversial physics puzzle, explaining the role of stray capacitance in the circuit.

Veritasium’s electronic question disturbed the nation! But was he wrong? Visit audible.com/electroboom or in US text electroboom to 500-500 and give yourself the gift of listening. The references in the video: Veritasium’s video: youtu.be/bHIhgxav9LY Science Asylum’s Video: youtu.be/C7tQJ42nGno Professors’ Line Analysis: ve42.co/bigcircuit EEVBLOG’s Channel: youtube.com/c/EevblogDave?sub_confirmation=1 Thanks for your support @ patreon.com/electroboom Post your submissions to: reddit.com/r/electroboom My Facebook: facebook.com/ElectroBOOM My Twitter: twitter.com/electroboomguy My other articles: electroboom.com/ Thanks to CircuitSpecialists.com and keysight.com for proving my essential lab tools and giveaways. Checkout my Amazon picks (my affiliate link): amazon.com/shop/Electroboom Below are my Super Patrons with support to the extreme! Nicholas Moller at usbmemorydirect.com Sam Lutfi Peter Membrey William Spain Enter your school for tools: goo.gl/forms/VAgRre8rLVvA1cEi2 My sponsors and top patrons: electroboom.com/?page_id=727 By: Mehdi Sadaghdar Veritasium’s question and answer, was he right? Short review of Derek’s video Poynting Vector, direction of power flow Detailed analysis of Derek’s question, Transmission Lines WATCH THIS PART! Local Forecast - Slower by Kevin MacLeod Link: incompetech.filmmusic.io/song/3988-local-forecast---slower License: creativecommons.org/licenses/by/4.0/

Why it's here

4 people recommend this, 1 disputes it

What people say. Recommended as the clearest and most practical explanation of the physics behind the Veritasium circuit debate.

jacoboluson Hacker News • Recommends

On “I bought 1000 meters of wire to settle a physics debate [video]”

Controversial is fine to the extent the controversy shows people struggling toward clearer understanding and better explanations, and as long as all parties are operating in good faith (i.e. not being deliberately misleading). Let me highly recommend Mehdi Sadaghdar’s (ElectroBOOM) excellent response video link to this video which does a great job of empirically investigating and theoretically explaining the subtleties involved, in a polite, respectful, and entertaining way. I have similarly enjoyed the exchange between Sadaghdar and Steve Mould about the physics of the “chain fountain”. These kinds of friendly scientific “debates” show viewers (e.g. kids) a bit of how the scientific process and scient…
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afiorion Hacker News • Recommends

On “I bought 1000 meters of wire to settle a physics debate [video]”

…he cable near it is positively charged from the battery and so the upper cable acts as a the negative half of a capacitor) which changes the direction of the poynting vector. In the end it felt like it was telling you that its message was that energy travels via the fields but what it actually said what that switches cause electric interference. * link to this video…
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naaskingon Hacker News • Recommends

On “I bought 1000 meters of wire to settle a physics debate [video]”

You should watch Electroboom's analysis if you want the full details from an electrical engineer: link to this video
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haxiomicon Hacker News • Recommends

On “Electricity Is Magnetism”

The veritasium video didn’t create a clear picture of what’s going on and you shouldn’t feel bad for feeling more confused after watching it ElectroBOOM has a good response link to this video
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Manuel_Don Hacker News • Disputes

On “U.S. Marine Corps Antenna Handbook (1999) [pdf]”

Not really in the intuitive sense: link to this video Someone actually went out and tested this: link The electric field is very tightly constrained around the wire. The amount of energy that reaches the light through the gap is incredibly small, not nearly enough to turn on a real light bulb. The bulk of the energy does indeed have to take the path through the wire. I find that video usually leads people to an even less correct understanding than the marbles-in-a-tube analogy. The Veritasum video can essentially be summarized, "fun fact: two parallel wires act like an antenna, and an extremely small amount of energy reaches the other end before the rest of the energy takes the long path through the…
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tdrdton Hacker News • Mentions

On “I bought 1000 meters of wire to settle a physics debate [video]”

Medhi Sadaghdar (Electroboom) explains this. Medhi says the video is right but starts with a trick question. That's what the controversy is about. link to this video
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Abishek_Muthianon Hacker News • Mentions

On “I bought 1000 meters of wire to settle a physics debate [video]”

> AFAIU, the entire point of the video was to show that electricity travels not through wires but via electric fields ("through the air" so to speak). Only that he doesn't context the video with that, But with a 'trick/googly' question. One of the reasonable constructive criticism I came across for this video is from Mehdi(ElectroBOOM)1 where he explains why the real answer is not in the options offered by Derrick. Personally I like the quality of Veritasium videos, but I lately feel that the barometer has shifted towards sensationalism rather than scientific education. 1 link to this video
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contravarianton Hacker News • Mentions

On “Electricity Is Magnetism”

…the confusion seems to focus itself around the concept of stray capacitance, which makes it doubly confusing when you illustrate it with circuit diagrams where stray capacitance is deliberately left out. See also ElectroBOOM's rebuttal 1 where he illustrates how the situation can be explained by explicitly drawing in the stray capacitance. 1: link to this video…
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aemreunalon Hacker News • Mentions

On “5.5 mm in 1.25 nanoseconds”

Disclaimer: I don't understand nearly enough about the physics of electricity, but this was a popular response video by ElectroBOOM that Veritasium also responded to in the comments: link to this video
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tzson Hacker News • Mentions

On “DC Circuit Water Analogy (1998)”

…n). That was discussed on HN and that discussion contains some very interesting links 5. In particular the link to a talk by Rick Hartley in this subthread is very informative 6. He talks about how most EMI problems in PCB designs are due to people not taking into account the the energy is not in the wires. 1 link 2 link 3 link 4 link to this video 5 link 6 link…
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