This was my entire ferromagnetic class that you explained in just 6 mins... That's the power of a good teacher... Thanks and keep going! ❤️👍🏻

@sillicon8227

Жыл бұрын

Wow, are you joking, or is this video enough as notes for ferromagnetic class

@ankurraj6560

Жыл бұрын

@@sillicon8227 well I'm a visual learner so doesn't depends on notes....

@westonding8953

Жыл бұрын

@@ankurraj6560 At some point, some things cannot be visualized.

@ankurraj6560

Жыл бұрын

@@westonding8953 i don't want to go to that point.... Better I'll push to learn visually as far as possible!

@westonding8953

Жыл бұрын

@@ankurraj6560 Sounds reasonable. Higher dimensional math cannot be visualized at a point. Still worth learning if it interests you.

Awesome demonstration of the domains snapping into place - I will definitly integrate that experiment it into my curriculum. :) Thank you!

This channel is spectacular. I was told about the noise from magnetic domains 20 years ago from a physics teacher. This is the first time I've ever seen it demonstrated. Thank you!

So this also explains why iron peices become a tiny bit of magnetic after you put a magnet to it. If even just a small part of all the magnetic domains in the iron get pointed into the same direction, it creates enough of a magnetic field to be noticeable. Thank you for making me finally understand this.

@jhoughjr1

Жыл бұрын

You can magnetize a nail by stroking it in the same direction with another magnet similarly

@jhoughjr1

Жыл бұрын

You can magnetize a nail by stroking it in the same direction with another magnet similarly

Although i knew all this stuff beforehand, your teaching capability made me smile throughout the video

@priyeolise

Жыл бұрын

Great explanation

@ianmcninch8070

Жыл бұрын

Humble brag ;)

@satvikvarun6386

Жыл бұрын

How'd you know this beforehand?

@totallyaccuratechannel

Жыл бұрын

@@satvikvarun6386 school probably

@ZsOtherBrother

Жыл бұрын

@@totallyaccuratechannel ...or KZread :)

You are an excellent experimenter! Rocks with digging deeper in the subject. Very important vedeo indeed!

Sick, these uploads are the only time that I enjoy someone teaching me something

The thought of hearing changing magnetic field never once crossed my mind , it blew my mind that the thing was always simple as even highschool level study can explain but I never tried

I did not know that the Barkhausen effect added to the fast heating of iron but it makes sense! I further did not know that the Curie temperature reduced the effect!

Great follow up on your induction heating '"series"! This is essentially the same thing what happens when you put your superconductor in an (induction heater) AC field. Though the specific physics in play are somewhat different in nature, they are quite similar in practise.

Man... The demos on this channel are some of the best out there.

@volvo09

Жыл бұрын

yeah, this one was really cool!

Wow this was incredibly informative, clear and visually demonstrated what is going on in the science really well. Good work!

Thank you for sharing this demonstration!

Incredible demonstration. Being able to hear the microscopic flips of magnetic domains inside of a ferromagnetic metal. You've outdone yourself once again !

Excellent demonstration, thanks!

this is by far the most interesting video about the Barkhausen Effect ever watched

That coil part with the amp was explained very well! Its similar to how guitar pickups work.

I am fascinated by this! Thank you for sharing!

your vids are the best man!

It feels awesome to be 1 minute and 42 likes early on one of your videos man but I just want to let you know that I’ve been a supporter for a couple years now,and that I love your videos, they are are very informational, creative, and inspiring.

Wow that was so well explained thank you!!

dude, this channel is really amazing! thank you so much!

Wow you did it again, explaining something that I've been wondering about for years. Keep it up!

This was a really good demonstration. I particularly liked the demonstration of how it totally breaks down past the Curie point :) 👍

You can hear changing magnetic domains. So cool when you put it that way.

You are an outstanding communicator!! Congratulations! Thank you very much!

WOW! What a great demonstration. I never would have guessed that'd happen.

@jasonharrison25

Жыл бұрын

missed opportunity to say: I never would have gaussed that'd happen. get it? Gauss-ed

Wow, fantastic video! Very good explanation.

literally my 12th grade Moving charges and Magnetism chapter in 1 video. Very useful practical demonstration. Will show my friends this video.

Good Explanation!

Thank you, it was wonderful explaination

I Love your content and am blown away often by the information you put out. But even more are blown away by how you even know all of this lol

Very nice experiment!

@The Action Lab Wow thank you! I'd like to believe this was inspired by my question. Thanks for the answer; it was very interesting!

This is one of the best demonstration.

It's precisely my comment on you last video about induction heating, hope I participated to pick this subject!

Great video 👍

that was a really good experiment!

2:50 *This is how they made Music Disc 13 in Minecraft.*

I guess I have learned this in school somewhat years ago, induction wasn’t that big in the kitchens yet… I never have seen this visualized in such a cool way! 👌👌😎

What a great teacher.

you always have the coolest/funniest shirts

This is probably the best video that you've ever uploaded.

The lack of noise at high temperature is propably caused by crossing the Curie point of iron, which causes material to loss magnetic properties

wow, I am not a science student and even I am blown away by the this and the way you've explained!

Hard-core Nice experiments ... Keep it up

This is incredible!

Great vid as always. Thanks for clarifying this so well. Great detail. Man, can I use some subscriptions. Free (or almost) stuff is nice when I'm already making videos to share to show others how to save things from the dump or recycling heap.

hmm....never new about that effect. Nice video!

Very good analysis

today had a conversation with my father about induction heat plates for cooking being more energy efficient and now I know why thanks

Very interesting video!

Thanks!

So amazing!!

Amazing loved it

I've never seen an induction cooktop in person, but I don't think that I would put my hand on it soon after removing a heated pot or pan. I think the surface would still be hot from being in contact with the utensil.

@SylviaRustyFae

Жыл бұрын

Its not hot, its a little warm at most and you wudnt be able to keep your hand on it for a long time, but a couple seconds wudnt feel hot... At least not to hands of those of me or the cooks ive learned from; but ofc we may have higher heat tolerance there, tho ill add weatherwise my heat tolerance is to like 80f/27c, but i can usually stick my finger in a hot sauce and pull it out and taste the sauce without it burnin me in any way

@SylviaRustyFae

Жыл бұрын

Officially, this is what folks who review induction stoves say about it... "There might be some residual heat from the cookware if you’ve just cooked something on it. This residual heat usually dissipated quickly but is still something to keep in mind. So it’s best to not touch the cooking zone right after using it (it only takes a few seconds to cool down though)" So like, yea its still slightly hot when youve just finished cookin, but shockingly not so hot its likely to burn unless you rly quickly put your hand down and are sensitive to heat.

Good quality sound from the fender amp

Brilliant video

such a great channel

This is amazing!!! 🤯🤯

Best demo of ferromagnetism I ever saw. I need to remember that.

This has almost nothing to do with the video itself, but just thought of leaving it here in case someone is thinking of buying an induction cooktop - don't be careful only about the material your pots and pans are made of - the other very important often overlooked thing is how flat they are in the bottom area that is going to make contact with the induction cooktop. Preferably, just buy sets of pots and pans that are specifically made for induction cooktops, so you have some guarantee that the material and shape is optimized for it. From experience - I use induction cooktops, and I have bought once and have seen a whole ton of cases of generic frying pans and pots being sold as "works with induction cooktops" with it not actually being recommended by the manufacturer. What happens sometimes is that it actually won't work or will work very poorly because the material (usually some sort of alloy) isn't great for it, or because the bottom of them have weird inlays, detailed working, shapes and whatnot that makes them not align properly with the induction coils. Check the bottom and see if it's flat and doesn't have a lot of indents and detailed engravings.

been learnin this shyt in school recently and you explained it alot better than mah teach.

Which causes more heat: the eddy currents induced when the iron domains shift, or is it the friction resulting from hysteresis when the domains shift?

This guy can never make an uninteresting video, especially when magnets are involved

I find it funny how the process of recording the sound goes through multiple coils of wire. Wire on the spool -> Coil in the speaker -> Coil in the microphone.

You have Just connected some stuff i knew together for this video, i am Always leraning Something new from you

Idk if you can even calculate this but I’m curious about skipping stones on water like what is the maximum amount you can skip with the most ideal rock and water condition

So cool! I wish I had nothing to do... I'd be your official fulltime camera man and editor just to be around this awesome stuff and help out.

Idk why this amuses me so much. Like a signal tracer from the old days

I'm glad I clicked this video. It was always confusing to me the difference of stoves. Note to self, get an induction oven!

Hello, could you share a link to where you bought that induction heater? I'm looking for something similar! Thanks

Can you use this and electromagnetics to make these random pieces of iron into various strengths of magnets?

That is really cool

Would it be possible to make iron that lacked the impurities which cause the snapping, or is that an unavoidable property of iron?

@manpreet9766

Жыл бұрын

I guess it could be possible but incredibly difficult. Basically you would have to grow a single crystal of iron. You can do it for other elements like diamond with very low number of defects.

@DrDeuteron

Жыл бұрын

@@manpreet9766 and a defect is a misalignment or, well, defect, in the crystal lattice. It is not an impurity, unless you call "nothing" impure. I.e, you want: Fe Fe Fe Fe Fe. ... but your get Fe Fe Fe Fe....

@manpreet9766

Жыл бұрын

@@DrDeuteron yes I know. Thanks for bringing that up. I should have mentioned in the comment but left that out just due to laziness.

@DrDeuteron

Жыл бұрын

@@manpreet9766 I know you know, but OP: maybe not?

Idea: show how a tension force can extend infinitely if you pull perpendicular on a rope. For example taking a rope tied to a tree then tying that to a car/truck and pulling perpendicular from the center of the rope and showing how easy it is pull the vehicle.

valance electron spin direction. That’s what makes iron special in terms of magnetism

What frequency does the induction heating coil power supply put out? According to the Wikipedia article on induction stoves, most of them work at 24 KHz to 40 KHz, but "all-metal" units have been made that work at 60 KHz to 120 KHz.

Hey, hope you're doing well today Mr. Action Lab

Fun fact: you can also heat or melt chopper with inducction heating, but you require a very fine tuned machine with a coil that can manage the current

Great demonstration but what if you put the iron bar in liquid nitrogen? Would the sound be louder?

Science is so cool!

If you heat the iron bar red hot and then quench it in water real fast the flipping of the magnet trick won't work anymore. This is because you have hardened the iron thus locking the molecules into one position and they don't want to be changed/flipped.

I wasn't following your explanation until you placed the iron core in the coil of copper, magnetized the core slightly and demonstrated how the noise was not present... then flipped the magnet and it was present. Great explanation. The one thing I don't quite understand is why doesn't the rapidly oscillating magnetic field of the induction heater cause a 60 ? hz signal in the speaker?

@u1zha

Жыл бұрын

The signal at 4:48? It's there, the loud buzz. He could've done a control demonstration for better understanding, putting the copper coil near the operating induction heater but without iron, so the 60 Hz would be heard pure, without the raspy frequencies.

You could make some sick electronic music with magnets.

I would love to see what austenitic stainless would react like.

Really cool demo, such cool sounds also very inetestng.

Since steel is at the correct temp for tempering when it loses it's magnetism. I wonder how that effect is related in the tempering of steel, like in knife making?

Now I want to make my own guitar pickups

This was a very interesting experiment! Just to know, would this work with other ferromagnetic metals? Like cobalt and nickel?

@frantisekvrana3902

Жыл бұрын

It should.

Can we do a hardening process induction heating a metal that is already inside a cold water?

*Experiment idea:* Connect 2 "balls" (or other shapes) of various density/materials and "connect" them via a "stick" of various materials (conductive and non-conductive) and drop them in a vacuum chamber! If you do, please use a camera with a high FPS-rate, slow it down and try to get a close shot from a short distance. 🙂👍

"without the iron you don't hear it" speaker proceeds to make noise...

So I should probably take a magnet to the kitchen shop next time

Good for blacksmith furnace

lololol that red line with no information attached to give context killed me. Ooooooo red line go up.

Fantastic 🤞🤞

So, is there a recognizable change on Time/Temperature curve which shows that domain shifting stopped contributing to heating?

@the_ALchannel

Жыл бұрын

Of course, that's why on low power induction heaters you can heat up the iron to red glow really fast, but then it just sort of sits there without getting much hotter

I would really like to hear the sound of that ring of magnets on the motor spinning up as it caused noise from flipping the domains 3:55. I really wanna know what that would sound like.

I almost feel like I was neglected in regards to maybe using something DIY audio or other spectrum analyzer to show the actually frequencies of the RF coil (induction heater_... I guess not so much inside differences.