Trying to See Rotating Magnetic Fields

[@ElectroBOOM]

Hey hey! If you like to see me rolling, I uploaded the full 3-Phase Dream in my second channel Mehditation you can all MEHDITATE to!! kzbin.info/www/bejne/g5itqn2tpLKfopY

[@proloycodes]

1 mins ago!

[@HarnaiDigital]

Sup

[@richardbarker7623]

Wouldn't the rotation of the field be perpendicular to the axis of rotation?

[@tharii314]

Watched it!

[@tharii314]

Which Animation Software do you use, sir?

[@PracticalEngineeringChannel]

Well I found my new screensaver

[@pvic6959]

as did I lol. Also Grady, I recently had the opportunity to tell a lot of people about your channel! I did the whole "hey do you know about that channel Practical Engineering? Its really good!" I hope they get to spread your videos too!

[@stv_iostream]

we all need 10 hours of 3-phase Mehdi Also - Grady - why in your videos when you show examples of something there are a lot of russian video fragments? especially in road construction videos?

[@squelchstuff]

Ask and you shall receive. Just try a little Mehditation. kzbin.info/www/bejne/g5itqn2tpLKfopY

[@Caesar512]

You make great dam videos

[@the_flying_fox]

Good to see you here. Engineers assemble.

[@AtAGlimpse_UB]

"This piece of SHEET" Loved that! HAHA

[@idanshemesh3905]

Oh thank god I looked for that that comment He cought me off guard

[@AlexandrBorschchev]

one time in a class presentation i pronounced "ice sheet" as "ice shit"

[@AtAGlimpse_UB]

@@AlexandrBorschchev how did the teacher react? XD

[@Godslayer303]

Yes

[@lonegrumpy4416]

Same

[@masteradvance]

3-phase Mehdi is a must for the Wallpaper Engine!

[@DipFF_Youtube]

👀

[@Rockworksbyashish]

Wait a minute who are you 🤣🤣

[@peterlustig2048]

Le dot

[@Rockworksbyashish]

@@peterlustig2048 😒

i can make, but if i do, someone will download? 😂

[@fudgesauce]

Mrs ElectroBOOM: "Mehdi, why are you squatting up and down like that?" Mehdi: "Oh, this? Don't worry, it's just a phase I'm going through."

[@ExcelonTheFourthAvalonHeirs]

I want to make pun but I can't come out with anything. Here, have my like and comment.

[@fudgesauce]

@@ExcelonTheFourthAvalonHeirs -- I'll avoid the obvious puns on electrical terms and stick to phase jokes. How about this: Mehdi is so smart he has 360 degrees. Or: when his daughter buys her first car, Mehdi will have to cosine for the loan. Or: Mehdi, that is really rad! Or: There goes Mehdi again, using circular reasoning

[@charlestaylor3195]

Now that was funny.

[@saritaswaraj2002]

Speechless

[@tarunnarain4545]

This is funny 😂

[@JeffGeerling]

There is a lot of SHEET in this video.

[@johnnykitty2024]

🤔🤔🤔

[@ikannunaplays]

But it's good SHEET

[@LabCoatz_Science]

Great video Mehdi! My best guess is that the film takes too long to "decay" between its magnetized and non-magnetized states, so you can't see the changes. Love the LED demo, that was an excellent visualization!

[@ziginox]

It's possible, the film is basically tiny capsules of gel with flakes of ferrous material floating inside, applied to one side of the plastic film. I have a theory that the particles also just align themselves with the magnetic field based on shape, and are stable in either 180 degree orientation and don't need to actually move to stay stable when the polarity reverses, if that makes sense? Not 100% sore if it's at all correct, but I have a sheet if you can think of a way to test.

[@andiszile]

That sheet works in such way that it's dark when field lines are perpendicular to it and light when they are parallel. For proof you concept, could simply rotate/move permanent magnets to see if those can be seen on film or at what speed film can't trace them anymore.

[@Yora21]

Yeah, I immediately thought that the oscillations would be way too fast to see.

[@MikeEngelmanGermain]

Agreed. That "piece of sheet" is more like "e-ink", very slow. A 2 Hz waveform would do better.

[@phaolo6]

@@andiszile Uh.. isn't it what Mehdi did at 1:14 ? 🤔

[@hamizchokhandiwala5209]

The way he says "oh now it's on fire" so calmly is like it's an everyday thing for him 😂😂

[@videomentaryproductionschannel]

It is an everyday thing for Electro BOOM lol

[@flowerpt]

you must be new here. :)

[@LulfsBloodbag]

Did you forget what channel we are watching? Of course it's an every day thing, just watch his heated seat video lmao

[@brycechryson5686]

@@LulfsBloodbag u can see his hot ass... literally

[@JeffWeselyan]

@@LulfsBloodbag I did so funny

[@StardomSeeker]

0:12 I’m now convinced this is precisely how all motors work

[@Kj16V]

8:00 This weird freaky thing is actually the most helpful 3 phase explanation I've ever seen. Up until now, I could never quite get my head around how the 3 phases worked together to make the motor turn.

[@PlasmaChannel]

I see you've got acrylic fever, Mehdi? :D The only known cure is MoRe AcRyLiC! Absolutely epic ending.

[@Cyberlord_Blaze]

I agree, the ending was nicely edited.

[@karolpradzynski2932]

Hi Jay 👋🏻

[@johnnykitty2024]

YAAAAAAASSSSSSSSSS

[@Miata822]

$3,000 worth of fancy power supplies make the LEDs go "Blink." Lovely

[@DipFF_Youtube]

👀

[@elektrodatv]

it's pretty much overkill ;) but for visualize negative part of sine wave you can connect parallel green LED in opposite direction to red LED. BTW maybe iron filings on paper sheet works better than this magnetic sheet?

[@maxine_q]

At too fast of a frequency for us to see without slow motion.

[@colbicolbiWTF]

god knows our education system would never fork out a dime for this kinda stuff, thankful for medhi!

[@idontwantahandlethough]

@@colbicolbiWTF Ugh, you're very right. I wish we funded the school system more.. it would help with literally all of this country's problems (simply by virtue of having a populace that's better able to analyze scientific literature AND thing critically. Right now we are... severely lacking [to put it lightly] in that regard :/) . It just sucks so hard to watch Republican's destroy, defund, and restrict the public school system all so they can later point at it and say "see? it doesn't work!". Like... yeah, of course it doesn't work.. you purposefully broke it. Idk why I went on this tangent, buy hey maybe somebody will read it lol. I just genuinely think that besides gerrymandering and lobbying (or other forms of money in gov't), reforming our education system is literally the most important issue right now. We are not going to do very well [as a country] in this new data-saturated world if none of us are capable of determining the truth value of a given piece of that data. Honestly, it scares the crap out of me.

[@yuvalkaroly4362]

I work at a super high precision brushless motor company and have been having a lot of fun watching your videos on rotating magnetic fields! Let me know if you'd ever like a sample maybe I can convince my boss to send you one HA

[@ShayBlez]

if this happens I am 100% here for it, wish you could notify commenters of happenings, should they take place, wholesome of you to think of helping. :)

[@Prop-A]

Please make motors for micro drones. 0802 and up 🙏 there is a big market for high precission prime quality brushless motors for drones.

[@moestietabarnak]

@@Prop-A are you sure ? It feel like asking for high-end multi-core CPUs to do real-time when a $0.25 microcontroler at 16 MHz can do the job if the 'real' time precision is in the milliseconds ..real time is not about speed, but time constraint. just saying, many people don't think about these things correctly

[@austin5060]

Which one are you at?

[@gabrieldayan9860]

It’s kind of like the lights at the entrance of the theaters - like how lines go around but it’s just light bulbs turning on and off at the right times that gives it that illusion

[@Geniusinventor]

The most important part of the video 7:50 . It's healing me psychologically

[@among-us-99999]

I think 45 Hz is too fast for the magnetic viewing film, the nanoparticles don’t have time to change their orientation. Maybe try 1Hz

[@TheChemicalWorkshop]

same thought...

[@Starter61]

I agree with "go away" (funny name btw)

[@universal69]

At 0:44 he says his power supply can only provide from 45 Hz to 1000 Hz u didn't hear?

[@elektrodatv]

Maybe iron filings on paper sheet will be better than this magnetic sheet?

[@Starter61]

@@universal69 Yes we heard that. But 1 Hz can be easily done by hand using some ...aligator clips, for example. It will not be sinusoidal, but it will clearly demonstrate the rotating field for the purpose of the video.

[@1chriswu2]

The last 10 seconds of this video were seriously the coolest trippy thing I've ever seen!!! Keep up the good work man!!!

[@SreenikethanI]

See the top pinned comment for the longer/extended/loopable version!

[@DonnyW13]

Hey Mehdi, I was thinking 🤔, instead of wrapping the film around the motor, what if you cut a hole the size of the motor in the film then poked it through? That way maybe you could see the field lines in cross section.

[@lyaeusv3828]

Make sense

[@elektrodatv]

Maybe ferrofluid on front of stator will be better?

[@sivansharma5027]

The problem is that the two poles appear the same and also that they always occur at the same locations. We don't see the magnetic fields move on the magnetic film because the magnetic fields are not moving around! They're always in the same spots, either 'moving forwards' or switching and 'moving backwards', both of which show up as a dark spot. During the transition though, when there is no field, I think the film needs more time to dissipate. Similar to how iron filings somewhat retain their shape even after the magnetic field has been removed. I would guess that you'd need less than 1hz, but again, all you'd see is the dark squares flashing on the same spot.

[@ElectroBOOM]

not a bad idea! I may give it a try

[@GLnoG420]

Yeah thats what i thought. Though im not sure if the magnetic fields would be strong enough to print something in the SSSSSHHHHH E E T. You usually put the magnets directly attached to the sheet to see its magnetic field, maybe they are designed to work only in that way bcuz only there the magnetic fields can affect the material. Idk.

[@MohamedWaheedAtef]

@3:24 "this piece of sheet" 😂

[@mickblock]

FYI I was perfectly happy with the psychodelic kettle drum visualization. And it was apparent that you really put yourself into it.

[@Pfh3dk]

That ending was glorious!

[@tylermcnally8232]

I loved Home Improvement and Tool Time when i was a kid, now i get to enjoy it as an adult, Keep up the good work Tim.

[@jincyquones]

*weird barking noise that boomers thought was the funniest thing*

[@Nabeelco]

The song during the blinking LEDs at 6:55 is Follow Me by Andrew Langdon

[@InvaderX32]

Holy shit thank you, I've been wanting to know what that song was ever since Mehdi first used it in his videos.

[@mouse3355]

7:44 Hypnotic.....and very educational...way....to understand.........the pattern... Genius!

[@Graham_Wideman]

Mehdi -- I think you're right at 3:15 about both North and South appearing as solid dark. However, you might be able to "bias" the field seen by the sheet. For example, if you positioned North poles on the other side of the sheet (at some adjustable distance), than at the sheet's location you might get either strong field lines, or minimal field lines, and thus dark or light pattern on the sheet. But also the rate of change (rotation) probably needs to be far slower than 45 Hz.

[@Breadman-MIA]

Love the emphasis on the sheet

[@GodFlameTheIronChest]

I love how he slowly went from "piece of sheet" to "piece of shiz" as he's getting more irritated

[@nortyfiner]

"Oh. It's on fire." Said so casually, you'd think he was reciting an accounting report. Only Medhi. LOL

[@dionh70]

It was almost a full-bridge recti-FIRE

[@youdontknowme5969]

just another day at the office LOL

[@Plasma.Prince]

And Styropyro hahaha

[@darksidderz8390]

Maybe you can visualise the rotating magnetic field with the following setup. Small reservoir with a tube big enough for the stator to fit inside. Fill the reservoir up with mineral oil and add some iron dust around the tube with the stator inside. If you then connect the stator and turn your power supplies on, you might see the rotating fields. A less viscous liquid or water, may be better for higher speeds.

[@espedro5129]

electroboom is life thanks for make good videos and make more science

[@Jezee213]

Haha Mehdi, I swear, your videos are a rollercoaster of emotions man. One minute I'm alert and learning, next I'm laughing my head off, then back to serious, then fascination at some of the great experiments. Keep doing what you do my friend! Best wishes to you and the family.

[@GogiRegion]

He knows how to be stupid in a safe way, which is a great quality to have if you want to have that mad scientist energy like the channel name implies!

[@xenon4698]

between the crossover with the old motor, the LED magnetic field, and the dance of equilibrum, this vid hits different, keep doing this mehdi

[@HarnaiDigital]

1:09 "Piece of Sheet" Honestly I thought he will swear and I'll hear Bleep until he said *sheet* 😂

[@ChetanDrive]

Laughed way too hard at 07:25 You're a genius Mehdi !!

[@gl1tterbeam157]

I used to be a rotating electromagnetic field sceptic but you sir have opened my eyes to the truth!

[@kreynolds1123]

To effectively see current flow in two different directions, you can do the same except use two different colored diodes on each leg of the wye with one diode connected in reverse of the other. Maybe red could represent north, and blue represent south.

[@laurenzkofler9317]

7:44 is my 2nd favorite clip of Mehdi now! Right after the Right Hand Rule Dance

[@majesticllama1405]

I love how hes so casual about it being on fire. Lol 😆

[@NVAfilm]

well at this point in his life he is just happy they didn't shock him.

[@wallacemonteiro3824]

A huge shutout from Angola/Africa. Love your videos!

[@ArizonaJewell]

Seeing the homemade motor start turning was so cool!! Great video as always Mehdi!

[@jdmjesus6103]

Instead of that magnetic film (looks far too slow to react) use an old CRT monitor or TV, I think that should give the effect you're looking for. The only hard part is finding one...

[@luvinsanity1]

It's hypnotic!

[@stopcam.iso_1]

Its been 3 years mehdi made his videos so informative and interesting that i learned so much from him (I edited this bcz some people dont want this line Love from india )

[@shinydumpling9847]

Bas india boldo comment section bhar jaega😂👍🏾❤

[@stopcam.iso_1]

@@shinydumpling9847 rehne de bhai

[@stopcam.iso_1]

@@shinydumpling9847 tu shayad believe na kre 2 saalo se jitna school main physics nhi sikha wo iss bande ne sijha diya

[@pchris]

7:44 should be your new outro I love it so much

[@DarthChastaelena]

Neat Quantum illustration at the end! 😊

[@carmispicer9440]

PLEASE keep going with this visualization. The magnet paper would be so awesome to see. Can you just slow down the frequency to like 1hz? Also, if you can show the lag, that would be incredible. Perhaps instead of the paper you could put a sheet the field can penetrate with a punch of metal shavings on top?

[@johnschewe6358]

None of those would work because each point is always a magnetic extent where the shavings would collect but simply change in intensity both positive and negative. So the shavings would never move away once they are at that point. It may be possible to collect the magnetic power using an inductor coil to power an led. But that wouldn't really be any different than just removing the motor and showing the phase with LEDs like he already did.

[@TacoStanMan]

That animation does such an amazing job explaining this while being one of the most legendary things I've seen. Wow.

[@darklight2.1]

"That's underwhelming..oh, now it's on fire.." Sounds like my typical workday.

[@some_haqr]

00:12 with the bangra too 🤣 Absolutely genius man

[@tyutoole2071]

This is the most SHOCKING channel ever I love it

[@jccx88]

I really like this piece of sheet.

[@KalamHathiyar]

Piece of sh*t🤣🥴

[@absolutelyproprietary6896]

Reminds me datash*t

[@draeath]

We have an automatic transfer switch at work that has a bank of 6 LEDs on the side, basically showing the same thing (except the extra LEDs are for the negative voltages). I used my phone to capture this in slow-motion once and you can definitely see the rotation. I think the idea of having the indicators is as a quick way to see if one of the phases is gone or misbehaving.

[@taliakuznetsova7092]

Think you can post the video?

[@draeath]

@@taliakuznetsova7092 I'll have to re-record it *and* get back to the office, so it'll be a couple of days. Car's in the shop.

[@go1988]

2:18 "Really a short circuit, eh?" Mehdi being Canadian confirmed

[@m3chanist]

The excellence of that end sequence can not be overstated. I rank it as a solid three walk shorts with bonus 6 sox

[@andreasrivera3516]

Me as an EE physics student, this was a great way to get a better understanding of this concept

[@bigul_siwach]

Love it when he says- "Piece of *SHEEEET* " 🤣

[@bigul_siwach]

Yeah actually 😂

[@Xonida_NcTroller]

@@bigul_siwach Bro agreed with himself

[@bigul_siwach]

@@Xonida_NcTroller yup

[@innovationtalk3734]

5:40 ,“when this baby hits 88 mph you're gonna see some serious shit.”

[@stevenspmd]

You said it yourself. This piece of SHEET doesn't work. Nice demo though :-)

[@DipFF_Youtube]

👀

[@BIGRIP87]

keep doing stuff related to 3 phase and magnetics thankyou 👍

[@X19-x5f]

A typical ElectroBOOM video. I laughed and I learned. Thanks!

[@mrex5769]

Have you tried running it at a much lower frequency like 1Hz so you can at least see the magnetic poles getting stronger and weaker as the voltage level changes?

[@RimoCreedeZz]

This is me, Always: " Sees an ElectroBOOM upload, clicks on the video and before even watching the video, clicks the like button " ✌🏽💯 Always great content Mehdi ✌🏽

[@0xTJ]

I'd have loved to see the LED demo with blue and red LEDs in anti-parallel (with seperate resistors for each). We could have seen the north and south as the seperate colours.

[@nemtudom5074]

7:46 okay, that animation is pretty damn sick

[@OvyWanKenobi]

Your rotating field animation will forever be stuck in my mind

[@eduardososa843]

0:52 Safety man

[@cauhxmilloy7670]

I have 2 suggestions to (maybe) make your original visualization work with the magnetic viewer film. The main issue is that fields running in either direction (north or south poles) look the same on the film. To address that, I was thinking that you could make them look different by changing the strength/magnitude depending on the field direction. The first suggestion isn't changing the circuit at all, just adding a constant field in addition to the dynamic field by the motors (putting a stationary uniform magnet near the film). When the dynamic field aligns with the constant field, they constructively make a darker region on the film. When they oppose, the region is lighter. This would still be, at best, a very greyscale animation; and I'm not sure how contrasted the regions would be. Worth a try? An alternative approach would be to actually modify the circuit to achieve the same effect. Adding a diode on each coil (e.g. zener, or Schottky + resistor in parallel) would make it so each coil produces a stronger field in one direction than the other. This should be able to be seen on the film, and thus visualize the changing magnetic fields. I suppose either of these approaches look the same as a field changing strength (and not direction), but whatever.. constant values on graphs are silly. :P

[@ivanvishniakou3385]

6:21 this looks like flux capacitor

[@michaelward3366]

Most excellent outro. I would loop this as a screen saver. :D

[@dmdeemer]

Ideas to get a better rotating visual with the magnetic-sensitive paper: 1) Slow down the rotation to 1-5Hz range, so no slow-mo is needed. Part of the problem may be that the response time of the paper itself is too slow. 2) Place the paper flat perpendicular to the motor axis, rather than wrapped parallel to it. 3) Use a motor with just two or four poles (3 or 6 coils) instead of that one, which is an 8-pole motor (12 coils).

[@MrSwekkerBoy]

Formooolas 7:23

[@PaperWasp100]

never stop making videos you legend

[@stevenwatson2666]

You are a very entertaining teacher/idea man!!! I really enjoy the way you think! Cheers my friend!

[@jeffryblackmon4846]

I MUST watch more of your entertaining and enlightening videos. THANK YOU.

[@R.U.anExpert]

Your channel became my all-time favorite. Much knowledge + much entertainment.

[@sayanchoudhury3190]

Really thanks for the video... Finally able to see this legendary thing

[@LokiScarletWasHere]

3 Phase Mehdi is hilarious. You should do stuff like that more often.

[@lolman3722]

Love that video keep it up man💯❤

[@TechnicalDhruva]

6:57 this is a great illustration

[@ZSchrink]

Amazing episode and visualization!

[@PigeonLaughter01]

Medhi! You should turn that sweet mesmerizing video at the end into an nfts for a fundraiser.

[@rokushou]

As someone with only surface level knowledge of hobby grade brushless motors, I always wondered why they had 3 wires and needed a ESC despite being DC. Never knew they actually ran on 3 phase AC.

[@Ktulu789]

I bet that his fingers are paramagnetic from all the zaps he got in his life and those are the shadows we see in the "peez of git" Mehdi is showing at 1:20. His blocking the magnet's magnetic field with his bare fingers! That's awesome! THANKS MEHDI! SEEING IS BELIEVING, REALLY!

[@nadirsalim7419]

Another great presentation. Thank you :)

[@satyampandey8799]

I really learnt something new, thanks electroboom!

[@jenisdas9685]

Thankyou for explaining us, Love from India❤️

[@zookster144]

Aaah psychedelia how I love thee. Much thank Mr BOOM

[@SrikantLive]

Outro is Dope and Next level Mehdi 😊🔥🔥

[@k06blocked45]

Whenever this dude says “ooo I have an idea” my heart skips a beat

[@DarkRedHorse]

As a followup to the last demo, I suggest replacing your safe and boring single-colour LEDs with bicolour LEDs and removing the central ground connection to allow and visualize the current flowing in both directions as the polarity between phases flips. So pretty.

[@vimalsobhee]

i watched it all the way to the end...soo mesmerising 0_0

[@1992ceaser]

actually you helped me increase my studies. thank you

[@Mikej1592]

OH! I see you have a new studio to record in, I like it, looks fantastic! Last vid I saw from you I remember you saying you were going to be moving to a new recording space, been a while since I got notified of your videos so this is my first time seeing it. love the look. Those are gorgeous sound foams on your wall.

[@3qwii]

Nice channel, good luck bro

[@CZghost]

Not a single video where he doesn't shock himself. Never fails to amaze me :D

[@flamencoprof]

Thanks for an admirable combination of theory, physicality and humour.

[@jasonfalcon7821]

I love your definition on the deference between brushless and brushed! 😂

[@supermegajaime]

That animation is so rad!

[@tasmedic]

I think a wonderful way of showing field rotation might be to set up the spinning soft iron egg display that Tesla himself designed and introduced at one of his exhibitions. You could put LED's across the field coils which would light up on the positive half of the cycle, and see that the egg, starting from a stationary position, gradually begins to turn and then catch up with the lights. Even better is that when it spins at full speed, it stands on it's end while spinning! Just a thought!

[@panndaacookies213]

1:08 I'm dead , " I also bought this piece of sheet " lololol 😁😂😆 sounds similar to something else