Molten Iron Vs. HUGE Magnet

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Have you ever wondered what happens when you bring a magnet near 5000 degree molten Iron? Does it attract? Or repel? Maybe it create cool shapes. But most importantly... DOES IT EXPLODE?!
I set off thermite over a very large and expensive magnet to finally find out for myself what happens when molten metal meets a magnet.
I learned that molten iron is not responsive to a magnetic field until it falls below 1400 fahrenheit, the curie temperature. By then it's solid!
PS Check out my video on GoPro's channel!
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↳ / thebackyards. .
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[@MichaelReznoR]

I don't know why the grass even still wants to grow in his backyard.

[@theinternet6313]

Life, uh, finds a way

[@disgusted2704]

@@theinternet6313 probably evolved to be resistant towards chemicals

[@neurotocksin3403]

dIsGusTeD his entire backyard is both a biohazard and a warzone

[@Dizpiz569]

@@neurotocksin3403 soon enough ants are gonna create chemical warfare against the other nests maybe a few micro nukes

[@neurotocksin3403]

@@Dizpiz569 nice

[@ZombieCakeHD]

0:35 The dog's taking a massive shit

[@mysticpoodle8568]

XD he is

[@mysticpoodle8568]

S/he*

[@carsandclimbing]

hahahahaha

[@Darkangelofak]

Lmfao! Ty so much for that crack up man! 👍👍😁😂😂😂

[@bmallory]

made my day

[@PuppetBoy.]

_"I don't wanna destroy my magnet."_ *_*proceeds to destroy magnet*_*

[@jacobbowman7852]

Look at the size of the first magnet that he was holding and the size of the second magnet he destroyed by pouring the molten metal on.

[@mortzon5681]

Yea, its not even the same magnet

[@bompi3572]

I Breathe Musicals not the same magnet..😂

[@meusprojetosdesoftware1488]

He fooled you!

[@lukewarm_meatballs5335]

Unus Annus

[@JollyPeanut]

He used a different smaller magnet on final experiment, i guess he didn't want to destroy the big magnet...

[@ghostdawg3310]

Well ya those are expensive I think

[@fieldsfamilyfarm4125]

I know he did have the same magnet

[@bradbradleys6091]

They are expensive af

[@Fiernin]

He also said he didnt want to destroy the magnet.

[@jonthornton8758]

Yep. Cheter

[@nickvanwhatt]

iron is non magnetic when its hot. its common practice to use a magnet tell if your hot enough to heat treat tool steel

[@ionut5350]

This guy knows what's up

[@laithrawashdeh254]

THANK YOU!!!

[@43RattleSnake]

Beat me to it

[@philm5380]

Duh. I don't know why he even tried.

[@koloth5139]

It does make me wonder how many people familiar with heat treating clicked on this wondering why this was even done. When he first asks "what will happen" I immediately answered "nothing".

[@KaienSander10Official]

0:35 The dog was taking a shit xD

[@Thebongosusetobethicc]

You got good eyes

[@gameingking8971]

Lol

[@SuperJuneM]

OhhhmyyyygoddddwhyXD

[@MeinCtutWichG]

wahahahah yes!

[@AloisMahdal]

the dog's poo is a molten metal and the lawn is a magnet obvsl

[@10whiten99]

He got a different magnet...

[@JOAT2003]

Its a 800 IBS Pull magnet Those things aren't cheap you know

[@heartattack2953]

Ya I agree

[@samarthtiwari5532]

@@JOAT2003 a kid in my class destroyed my teachers 400 pounds neodymium magnet. lol

[@amiriking9761]

Rip magnet

[@razorprime8454]

@@amiriking9761 Rip student*

[@katx9697]

I was told Iron loses it Magneticity when it reaches a certain temperature. And yet I cannot explain the earth's magnetic field.

[@JohnDoe-qz1ql]

VERY good question. Ya know, many things aren't established fact, even though they're treated as such.👍

[@andreasmanique113]

ever heard of a dynamo? moving current generates a magnetfield

[@RideAcrossTheRiver]

@@JohnDoe-qz1ql Scientific facts are based on observations, so quit using lies to sow dissent and discord. Our planet has a magnetic field. Figure it out or go back to a cave.

[@JohnDoe-qz1ql]

@@RideAcrossTheRiver Actually, some are theories BASED on observations. Looking back at my post I Did lie, they Are established fact. Keyword ESTABLISHED.

[@RideAcrossTheRiver]

@@JohnDoe-qz1ql "some are theories BASED on observations" No, ALL scientific theories are based solely on observations. Have another beer

[@DANGJOS]

Above the Curie temperature, the magnetic moments in iron are randomized by thermal motion. It is no longer ferromagnet, but a weak magnet called a paramagnet, who's spin only aligns in a magnetic field.

[@Nate-9797]

I thought you'd know molten metal wouldn't be magnetic. Although maybe you did and just thought it'd be interesting to demonstrate it like this.

[@HealthyFamilyVarietyChannel]

Yes, *THIS!*

[@zefamousmitch]

Absolutely! Iron lose its magnetic properties when it's molten... His magnet has only influence on iron during cooling process, that's all... And a heated magnet lose its propeties too... It's a useless experiment!

[@alehax27]

He explained it in the video

[@MaxVonTroubador]

Did you watch to the end?

[@Macatho]

Lots of kids watching this and they might not know. But yeah I stopped watching before he did the experiment too.

[@maxk4324]

Prediction before watching: The magnet will have no effect on the molten metal as it is waaaaaay above the curie temperature for iron (not to mention the atoms aren't even in a solid lattice). Now lets see how I did.... Edit: Yup, I was right.

[@maxk4324]

@Bennet Olander I was simply making a game out of it for fun and commented so that I might see if others had different pre-watching predictions they'd like to share. I was not trying to boast or sound condescending, but my apologies if it came off that way.

[@Mamaw_TvPRD]

It's common knowledge specially when you have knowledge on blacksmithing.

[@delux7500]

Weird flex but ok

[@maxk4324]

@@delux7500 twas a game my dude. Read my earlier response to @Bennet Olander

[@delux7500]

Max K It’s okay bro I am just kidding

[@WinterisUnstable]

This is an old blacksmithing trick. When metal hits a certain tempature, (usually before molten) it becomes non magnetic. This is why it wasn't affected

[@noncalamari]

Yup. en.wikipedia.org/wiki/Curie_temperature

[@Jobey_99]

"the Curie point for Iron as 768 °C and it's melting point as 1538 °C, so no, liquid Iron is not magnetic." One google search would have avoided this experiment.

[@electronus97]

He says this.

[@llizardcz6230]

I thought that molten iron isn't attracted to magnets.

[@Jobey_99]

electronkidus97 Then why continue with the experiment.

[@TheRealTakaoAoki]

Oh geez. What a bore your life must be

[@TheRealTakaoAoki]

How about you go and be a bitch somewhere else

[@TheAmazingKraken]

Did anybody else come here wondering "what is a magnet going to do to metal when it's too hot to be magnetic?"

[@FurryEskimo]

He was clearly ignorant to the fact that this happens. :/ Makes me kind of scared as he's not doing any research before handling these materials.

[@TheAmazingKraken]

He mentioned it in the video... the "curie" point But he still went through with it, which doesn't make any sense

[@RonaldSutherland]

800,000 views says it made tons of cents.. *cough*

[@FurryEskimo]

He mentions that property After he performed the experiment. He looked it up after.

[@TheAmazingKraken]

Oh shit, good point! haha And 800,000 people don't know about that characteristic of iron. And you're looking for "sense" not "cents"

[@jadianradiator2761]

0:15 Nate and Kally over at The King of Random have shown that melting a magnet permanently negates its magnetic properties. So I'm interested to see how it goes the other way around.

[@hawar_jesser]

Am I the only one who wants to know were he got the magnet?

[@captainkilroy7878]

no

[@tywilliamson2472]

BanjoBox i want 1

[@royalblues5485]

Probably the same place you're watching this video. The internet.

[@dalassyorkston3192]

I think i am the only one that cant afford it LOLOLOLOLOLOLOLOLOLOLOL

[@nikobellic5655]

NOPE

[@Dafoodmaster]

at high heat iron doesn't react to magnets anymore. it's actually a benchmark of heat treatment used by some knife/swordsmiths

[@hogquaffer4741]

Dafoodmaster yeah I'm surprised he didn't know

[@squach6239]

Dafoodmaster Was just gonna say that!!!

[@Dafoodmaster]

if he knew, why did he go through the effort and seem genuinely surprised at the end?

[@xsto01]

He didnt look at it he switched the magnet for something smaller... Is he now a liar?

[@vercingetorix6950]

Dafoodmaster Because it is fun

[@DanMan5000]

Understandable why he didn't use the same magnet for the last one

[@TheBackyardScientist]

+Daniel McDonough haha you notice! I bought a 4 inch and 2 inch but I just couldn't part with the 4 incher!

[@dvpttt7430]

+TheBackyardScientist yeah ive loved magnets since I was a kid and it scared me when he said he was going to ruin it

[@mitchhamilton64]

yeah. i know what its like to not want to part with a four incher. hoho, penis jokes! ...........wait.

[@winkyshy2]

gunna take more than that to unsubscribe. i got a few 1 inchers about the diam. of a quarter 80 lb lift, and they were not cheap. not to mention i given myself a few blood blisters playing with those. so do be careful pplz

[@kirkw6027]

I noticed that he used a smaller magnet for the last experiment.

[@RickyVall3y]

He genuinely seemed sad after his magnet got ruined

[@dahuaba9558]

0:25 The moment he blinks and moves his eyebrows because the muffintray gets attracted to the magnet through his hand 😂😂

[@MrCheker34]

Isnt molten iron like, non-magnetic and shit?

[@jimgohner966]

Aren't you like non educated and shit?

[@etourdie]

Yes because heat stops ferromagnetism from working.

[@Ivar_Mennes_]

And shit? Just use a dot don't end with: and shit

[@MrCheker34]

Clorox Bleach Read the Comment of E Mcclellan.

[@TheEthanEdge]

i was thinking that, im sure it looses magnetism under extreme heat.

[@ratamacue0320]

Putting your hand between metal and such a strong magnet was not too swift.

[@wainboes7898]

ratamacue0 Eh it seemed to be a pretty safe move it wasn't big, falling, or too strong of magnet. Can't really see the mistake, other than maybe bad for future, stronger magnets. Unless you're talking about when he cut himself, which wasn't very swift lol!

[@bucky13]

Yea, I was face palming so hard. He got a false sense of security from picking up the little pieces of iron. The bigger the chunk of metal, the stronger the pull. If he were to do that with a 20lb steel plate or another strong magnet he would have lost some fingers. It's common sense! You don't restrict 800lb pull magnets with your own flesh.

[@reyaazasmal2218]

ratamacue0

[@bucky13]

+Starstriple Could you please explain?

[@tenacious645]

bucky13 lol He has NO clue. Any adult with half a brain knows exactly why it's moronic to buffer that powerful of a magnet and magnetic metals. You will crush your hand accidentally if that's a common practice of yours.

[@Dunkle0steus]

One of the ways blacksmiths can tell if their metal is hot enough to quench is that steel and iron stop being attracted to magnets at high temperatures. I don't think molten iron reacts much at all to magnetic fields.

[@cash5648]

Finally a KZbinr that I can actually watch for learning purposes and fun!

[@austinthegamest7424]

Cash Morgan try mark Rober too!

[@shprough1678]

THAT'S NOT THE FUCKING SAME MAGNET DUDE! 3:47 It's much smaller

[@srirajcha988]

The other parts of the magnet probably cracked away or melted into the iron...

[@bananen115]

Noticed that too

[@glowshroomfrfx8992]

EXACTLY

[@marciolimas]

I think he saved his magnet. anyways this magnet behavior was expected.

[@crosstross]

3:40 its the size of his hand 3:50 before the molten iron its much smaller.

[@popeyethepirate5473]

I'm a blacksmith and when I saw you where trying to get molten iron to be magnetized I knew nothing would happen.

[@Abrexas90]

I actually felt a bit dumb when I was surprised that nothing happened. I thought it was ubiquitous knowledge that magnetism was lost at high temperatures. But I guess this surprised me because I'm used to thinking of this is the sense of heating up a magnet itself, and not heating up a magnetic material. I'm jealous of your trade though. Something I would love to hobby in at some point.

[@pepperspray7386]

I guess the part of the title "scientist" is used ironically.

[@Abrexas90]

Pepper Spray iron-ically I see what you did there ^_^

[@Cyber_Nomad01]

Bring it up to just above non-magnetic and quench.

[@mrjspeed]

I'm a regular guy and I learned something today

[@caiodollis6159]

When iron passes a certain temperature, its ferrite structure becomes austenite, an iron allotropic form that is non magnetic. Magnetism is not inherent to the element, but to the atomic structure. Fun fact: Most of the stainless steel are non magnetic because the ferrite was transformed into austenite and the nickel content stabilizes it at room temperature

[@richardthomas4910]

Good job copy and pasting this from the internet

[@caiodollis6159]

@@richardthomas4910 lol thanks, but I learned this on college. Have a good day

[@user-qe8bq1ml1z]

unfortunately iron and steel loses its magnetic properties after reaching a certain temperature, in fact using magnets is a common way blacksmith's figure out if a piece of steel has reached a certain temperature.

[@ShubhamBhushanCC]

Now backyard arsonist, if you'd just known the concept of Curie Temperature this experiment wouldn't have to be performed in the first place. Iron is only attracted because of something called Ferromagnetic Domains and at high temperature those domains get destroyed and iron turns paramagnetic .

[@oopssry3536]

Nerd

[@ShubhamBhushanCC]

Pot calling the kettle black, eh?

[@luarangalaxy5652]

+Asia Man rude c,mon you didn't know that!?! haha!!!

[@TheFABULOUSAssassin]

He talks about that watch the video before commenting smartass.

[@KainYusanagi]

TBF, he talks about the curie temperature for magnets to demagnetize them, not about the iron itself, nor the ferromagnetic domains.

[@timalphadog2]

The amount of metal shards in your backyard must make mowing interesting........and slightly dangerous.

[@daemonCaptrix]

Metal isn't just attracted to magnets. It's how the electrons are rearranged by magnetic forces that causes the attraction. In a molten state, the atoms are vibrating all over the place so they can't be rearranged so easily and they won't get attracted.

[@TheChipmunk2008]

[pause video] prediction: you won't get pretty shapes because the melting (or even plastic) point of the iron is WAY above the curie point....

[@TheChipmunk2008]

A few mins later... I called the curie point thing, but the loss of magnetism of what is basically a ceramic, i didn't even consider. Cool demonstration :)

[@HungrysitesRu]

Yeah... basically it's like some of the stupidest mythbusters myths that are just scientifically impossible)) They don't bother to check it on paper - they build a spaceport for that. A good demo though, yeah.

[@legoshaakti]

I was about to comment the same thing. As a scientist, he should have realized that the melting point of iron is above the curie point.

[@faxezu]

You are right, it's going from ferromagnetism to paramagnetism over the curie-temperature. But paramagnets are attracted in a magnetic field ( e.g. your magnet sticks to your fridge )too. So at least something could have happened.

[@fredlllll]

thats what happens if you dont listen in school.

[@TylerSwan11]

Defenantly not the same magnet (the one he destroyed)

[@Darksinne]

yep saw that too

[@lagstername3659]

ya

[@prettipcservices]

that is like a $200 magnet, the little one closer to $30. which would you rather destroy for the internets?

[@Darksinne]

that's not the point... He could have just acknowledged that its a different magnet and we'd all be fine... but he implied that its the same magnet...

[@brothyr]

he did say he didn't want to destroy his magnet. The one he put in the bowl is fairly small.

[@The_Gabinator]

The metal didn't attract to the magnet while molten, because once iron gets around glowing hot, it just isn't magnetic. That's what blacksmiths use to tell when the metal is hot enough to heat treat it, once a magnet doesn't stick to it, they stick it in to the water or oil.

[@psykology9299]

With my limited blacksmithing knowledge i know a good sign for quenching temp is once your blade is no longer magnetic

[@theabhominal8131]

the magnet at the end was not the 800 lbs. magnet it was much smaller....

[@SleebyRise]

Melted

[@stablefriction1155]

What he meant was that it has the force to carry something 800 lbs.

[@blunttime420]

+SilentDarkness Attack before he poured anything on it. you see the scene before the magnet is almost as big as his hand. the magnet in the shot after is a lot smaller.

[@ap7k533]

+SilentDarkness Attack no but see when he bearly puts it in the try it looks much smaller in his hands than the other one

[@mentalrere1958]

+Stable Friction he used a diffrent magnet for that so he didn't break his expensive one

[@Boobashoob]

Yeah... before I even clicked on this video, I thought, "Isnt molten Iron non-magnetic?"

[@kevthomas1179]

" oooh that really hurt" ....wear the damn protective equipment

[@LivenrightHalo2]

I'm all for a different magnet. Just sounded like he was trying to say he destroyed "the" magnet. All Gucci, I just like transparency.

[@chimkinNuggz]

didnt you learn anything from crazy russian hacker? "sefty is nuhmba wan prioety"

[@glowshroomfrfx8992]

hhaaaahaha

[@cuthon3574]

I dunt dink he got it der

[@TallOldOak]

I've tried to watch his videos multiple times but I always bail after that line. Just sounds so incredibly lame. That intro would only work if he was obviously being sarcastic.

[@michaelcoleman9276]

Hahaha

[@algunnomegracioso6310]

boom how cool is it

[@CoolKoon]

Yep, Curie point is a beeeach.........anyway I haven't seen 5000 degrees anywhere in the video. Where was it supposed to be?

[@TheBackyardScientist]

+CoolKoon the thermite

[@CoolKoon]

+TheBackyardScientist Uhm.....does this mean that it would even work for producing pure chronium?

[@FlameThrower851]

+TheBackyardScientist rainbow six seige?

[@Fuetre]

+Clorox Bleach (UltimateShogun) your a real ash-hole ;)

[@badascan8910]

orrrr....he could be teaching folks that don't know....I hate science snobs. You're the reason more folks aren't into science

[@kopriva007]

Too bad for the magnet, but we all learned someting new.....and you got new subscriber. 😁

[@cardboardbox3259]

For everyone bullcrapping about this video, respect that he put time, effort and money into it. It’s not only for you. Do it urself and stop complaining!

[@MrTheblackopsdude]

Did anyone else realise he used a different magnet at the end, or am I mistaken?

[@lisnjay]

You aren't mistaken.

[@ShadowaOsu]

I realized it too, I wouldn't destroy that kind of a magnet either :D

[@NoorquackerInd]

Lol yep

[@woahhnich2628]

yes your not mistaken

[@Lohk81]

Your correct. Was the first thing I noticed.

[@peteroflynn6039]

Considering scientist is in your name I would have thought that you would have kown that when iron reaches a certain temperature (Before its a liquid) it becomes non-magnetic. I know this because testing iron with a magnet is the common procedure for checking if iron is ready for heat treatment when i'm forging tools

[@wellingtongrayiii2327]

he did know he explains it at 3minutes

[@christophernelson9891]

A scientist is NOT someone who just has a certain set of knowledge!! Gahh I am irrationally frustrated with people who post such comments.

[@texasdeeslinglead2401]

exactly

[@mkauf84]

Science was the process of discovering metals loose their magnetism after reaching a certain temperature.

[@mkauf84]

Why are you saying you're irrationality frustrated? You gave a clearly understandable rational reason. Why are you being irrational in thinking you're irrationally frustrated?

[@the_turnip_king3346]

umm you do know that metal loses its magnetism at melting temperature

[@richcampoverde]

He did say multiple 🙄🙄

[@jamesleatherwood5125]

Before conclusion. Paused at thermite burning. So. As someone with amateur blacksmithing experience, iron demagnetizes before it even melts. Its actually a target temperature to the point of most blacksmiths having a magnet close by while smithing to check for that very demagnetization. So, theoretically, because the iron is demagnetized (or mabey thats the wrong word... has become non magnetic?...maybe) it should not respond to the magnets field no matter how strong it is.

[@birthdaycow4258]

Let me just put my hand between a powerful magnet and metal, what could possibly go wrong?

[@redfreckle2044]

Yeah, also don't play around with neodynium magnets with no pants on. A friend of a friend of mine had a terribly painful accident.

[@birthdaycow4258]

***** but it did and he wasn't

[@DaffyDaffyDaffy33322]

you willing to bet losing a hand on that?

[@thegrumpley1266]

*Bubsy flashbacks intensify*

[@ChristopherKing288]

Don't worry, it was just recently solidified molten iron. I don't see what the problem is.

[@azreal289]

Okay man, lets go through some basic metallurgy. I forgive you for trying this. I came just to watch the thermite because I knew after reading the title it wouldn't work. As you are aware, blacksmiths heat up metal so that it becomes soft enough to pound into shapes in a way that doesn't ruin the structural integrity of the crystals. The science here is that when iron heats to a point that it is easily shapeable, it looses its magnetic properties. A common trick for new blacksmiths that don't have a thermometer and don't have enough experience to visually observe when metal is ready to work, is to use a magnet on a stick. When the magnet does not stick to the work piece, you know you are in business. The molten metal is an even higher temperature than what blacksmiths work on. The magnet can not possibly stick.

[@dealwitit6563]

Did you watch the video? He says why it didn't work IN the video.

[@nickjones337]

John Grubb he said that in the video

[@S41t4r4]

he didn't, he only explained why the magnet stopped working .

[@katrinarose2210]

the magnet was working fine, he literally explains why magnetic materials stop working at high tempuratures at 2:53, at that point in the video the magnet still worked fine... I've seen so many comments like this one, like obviously some people either didn't watch the video or didn't pay attention too well lol

[@S41t4r4]

You was the one who didn't watched the video at 2:53 he literally destroyed his magnet and then he explains why. it is also the reason why liquid metal has no magnetism. In regards of the target group of this channel the explanation coud be better formulated.

[@dank4661]

I like the unmentioned magnet change after "I dont want to destroy my magnet" Haha. It only got 1/3 of the size in the transition... :D

[@RemedialRob]

Anyone else notice that the magnet he used in the last experiment (right after he held the original and larger magnet he used for all previous experiments and said "I don't want to destroy my magnet) was a smaller, different magnet than the one in the rest of the video? You can tell almost immediately how much smaller it is. In fact since we never saw that second magnet attract anything we don't even know for sure it was a magnet. Not that I'm doubting the results. The science is already settled on this. But that was clearly a different "thing" in the last experiment than the larger magnet used in the rest of the video. He really didn't want to destroy his magnet.

[@doggofv]

fill your pool with melted chocholate then put liquid nitrogen on it :D

[@alexanderfeldman1230]

YESSSSSSSS

[@keshavlokheeram7784]

yeeeeeeeeeeeees

[@alexanderfeldman1230]

Just get a bunch of chocolate in the pool on a hot summer day :)

[@keshavlokheeram7784]

XenoGamer it was for fun

[@xenomaniac4875]

just making things clear here

[@Sander_Datema]

My bet: the magnet dies and the molten iron doesn't do anything special...

[@luhdooce]

10 years later, Kevin renames his channel from "Backyard Scientist" to "Scientist"

[@TheGeocacheHunter]

Neodymium magnets actually have a curie point of 80*C (~170*F) unless they are specifically made to handle higher temperatures, but those are weaker compared to the similar size and grade and only go up to ~200*C

[@AureliusR]

You do realize that molten metal has completely different magnetic properties? Once past the Curie point of the metal, you change its intrinsic magnetization, without attracting or repelling it.

[@AureliusR]

Oh wait, you addressed this in the video :)

[@jnbaker7422]

+Aurelius R I yeah I commented about that to not just you bruh.

[@Justin.Franks]

I was about to post the exact same thing, but waited, and was happy to see that it was addressed later on in the video. But this really is something he should have already known, and his comments in the beginning about hoping to get ferrofluid-like iron sculptures makes it seem like he did not.

[@lemmonsinmyeyes]

Metal turns nonmagnetic after it reaches a certain temperature. They use magnets to know when steel has reached the correct annealing temperature.

[@lemmonsinmyeyes]

EDIT: if you knew that metal wasn't magnetic after a point why the hell did you make the excuse of trying to make ferro fluid in shape? You'd been better off trying to suspend iron fragments in a resin and curing it attached to a magnet.

[@Jobey_99]

Yep the Curie point for Iron as 768 °C and melting point is over double, stupid experiment a google search would have saved 5 minutes of my life.

[@wellingtongrayiii2327]

+josh green This guy also explained in his comment that the backyard scientist knew. Stop hating for no reason

[@Jobey_99]

Wellington Gray III Who said I'm hating i'm pointing out this wasn't needed.

[@nielswalinga5804]

why is he so dumb?? He didn't do any research apparently

[@sn0wchyld]

'this thing has 300lb of pull force' proceeds to put his hand between it and a large chunk of iron...

[@bigpyne9361]

If nothing else, a really good example of Electronic Thermal Breakdown.

[@MisterCuddlez]

When in molten form, metals aren't magnetic. I didn't go to college, but even I knew that. C'mon, man.

[@goldbyrd3667]

Now we have a video showing just that

[@goldfishking5465]

yeah he never watched bill Nye the science guy

[@13roses49]

+Ps4 all the way yeah

[@13roses49]

I won't say disappointed

[@jarnellkabore9505]

HES BEEN EXPOSED BY XPLIOT

[@jakedg4870]

why the hell did he put his hand between the magnet and the iron? hahaha :')

[@martind.5257]

That's what I wondered. He is so awfuly uncareful in every of his videos

[@jakedg4870]

i guess he gotta fall on his nose hard before he gets some common sense

[@devoltar]

No doubt, this guy is poster-child for "Don't try this at home". You *never* put your hand between a rare earth magnet and anything it will attract, esp if you aren't certain of the iron content. Even two small rare earth magnets can snap together and crush finger bones - an 800lb magnet with a big enough piece of metal can crush pretty much any part of your body. He only made it out with so little injury because the items that snapped to his hand didn't have enough metal to generate that level of attractive force (low saturation). Of course I think he realizes the limits he pushes, but I do kind of wish he'd remind people, because some of the folks who watch these videos aren't savvy to the science or the risks. Braniac75 has some great videos for showing just how dangerous big rare earth magnets are.

[@byby488]

because it would have been very difficult to remove all the microscopical iron bits from the magnet. That thing is pretty strong.

[@devoltar]

You use a board for that, not your hand.

[@nothin1456]

I knew. I knew you where going to magnet something to your hand right away lollllll.. Lolll

[@gongoozleriam9783]

This is the first time I've seen you actually get hurt doing this crazy stuff you do lol I'm surprised it didn't happen sooner lol poor hand :(

[@stanimir4197]

try it with 2 N52 magnets of decent size smashing into each other and make sure you have no body parts in between. (Hint they shatter)

[@dots5641]

Never EVER. Put your hand between a strong magnet and a magnetic material. Ppl have lost their hands from that before

[@KeirTheDouche]

I thought metal (when heated high enough) lost magnetism.

[@Cloruro]

It does

[@KeirTheDouche]

Ohhhh I'm smart as shit lol

[@KeirTheDouche]

Nah jk I watch a lot of KZbin is all

[@eduardoschiavon5652]

It does, it's called the Curie Temperature or Curie point.

[@thatguy7742]

Congrats, you guys payed attention to the video.

[@CentralVAProductions]

This man’s backyard has probably been more bombarded by toxicity and death than all nuclear explosions sites on earth

[@BennoWitter]

I was terrible at physics in school, but even I remember that you can demagnetize magnets with heat.

[@zsedc4]

These videos make me want to fill a pool with jello and toss solid sodium in it just to see what happens.

[@CarterColeisInfamous]

as soon as it gets hot it will destroy the domains and not be magnetic any more

[@suhasdara3040]

I like how he uses a wooden board to separate the magnet from something burning at 4000F xD

[@katrinarose2210]

still protected the magnet tho

[@YouGotNo_maidens]

What was he meant to use? Metal? It’s a magnet, it’s Gonna be stuck to the metal forever

[@lordnile6657]

​@@YouGotNo_maidensceramics

[@epiphone5696]

I think it has something to do with the metal becoming hot and losing the magnetic field? i dont know much about it but you do it when heat treating knifes, you test it with a magnet to see when it's ready. Sorry if i'm wrong. Edit: okay you explained it in the end, lol. Sorry!

[@simplyshady880]

The reason for it not being magnetic is because the melting point for iron is much higher then something called the Curie Temperature which is 770 ˚C. and the melting point for iron is 2,800°F or 1,538°C

[@r1w3d]

haha i like how he went from the giant magnet to a smaller one for direct contact with molten metal as to nit ruin the large one. i have many magnets and the one that size that i have is called the death magnet by the company.

[@pinzgauernorcal]

the magnet got allot smaller i dont think it was the same magnet

[@krap101]

sneaky

[@tyronethechef4606]

it broke

[@chieftain20]

A $150 magnet is cheaper to destroy than the $500 one.

[@krap101]

+chieftain200880 ya don't say

[@quanghoahong]

what a phony

[@tux9656]

I wonder what would happen if you got a magnet like this extremely cold using liquid nitrogen.

[@davemwangi05]

Meissner effect. But anyway, these guys work best at lower temperatures, eg Low temperature superconductors. eg niobium tin.

[@davemwangi05]

superconductor magnets.

[@nikolaiorr8383]

Ever heard of a mobius strip

[@tio4973]

A magnet would lose its magnet ivory if it got too hot or too cold

[@pragatiswain6914]

I literally enjoyed the video not because I randomly approaches but because I search for it and I got here.

[@traceybartolome1782]

It became small

[@TheBackyardScientist]

+RickTGM I'm saving the big one for something else!

[@Galshaer]

You should be a magician or a sleight of hand artist

[@mog3317]

+kush Lol

[@tacdriver22mk2]

lmao i was wondering if anyone else noticed

[@kwintin1000]

Don't believe the ads, there's no way to make it bigger.

[@DavidJensen66]

3:46 DID ANYONE ELSE CATCH THIS??? HE SWITCHED MAGNETS FOR A SMALLER ONE!@!!

[@stephenyang7666]

He didn't;t want to break the real magnet he said that

[@lightspeed2014]

SilverSearcher I

[@xibidit]

he sure did my friend :) just scrolled down to say the same thing

[@strangerbynight]

Ur stuipid listen to him

[@strangerbynight]

SilverSearcher y

[@ThoracJunaut]

the problem with this was the Ferro-fluid thing was never gonna work, because almost all metals i think can be heated to a point where they actually lose their Attraction to metal, and in molten state, the iron would never go to the magnet sadly

[@mushmello526]

What I missed in this video was molten iron next to a magnet and watching when it gets cold enough to pull towards the magnet

[@michaels.5721]

iron becomes non magnetic after a certain tempature

[@misaalanshori]

did you even watch the video?

[@itskermit8352]

It does?

[@NormalizeHQ]

I think he's guessing what would happen before he saw

[@Electroblud]

Yep. That's the Curie point. I'm surprised that not more comments are about this. EDIT: just watched the Video, never mind.

[@michaels.5721]

ElectroBlood yea, i commented before watching the rest as well lol

[@TheBertjeT]

You destroyed a different magnet. Not the one you showed at the start. You don't have to be sneaky about it.

[@GrantHigby]

that is a strong magnet and when i saw that pan get stuck to it through your finger i could not even imagine the pain because those magnets can HURT!

[@kaisersose5549]

When ferrous metals are heated enough to open their crystalline lattice, they lose magnetism. That's how blacksmiths check to see when steel is ready to add carbon to.

[@bobcat224]

I thought molten iron was nonmagnetic.

[@mitchh8389]

It is

[@XeninaCalifornia]

Yes. It is. Thus there was no reason to destroy his magnet.

[@Patrick-sq2ek]

He switched magnets anyway

[@longshot7601]

Yep. The 'scientist' title part of this channel's name is a misnomer.

[@schizophrenicenthusiast]

+longshot7601 Not really, you could say he did his part as a scientist by doing the experiment and ended up confirming that things don't act as magnets when they're molten.

[@lemonke8132]

Isn't it common knowledge that really hot/molten metal isn't magnetic? I'm going into my sophomore year of high school and even i knew that haha

[@TheBackyardScientist]

+Definitely Not B8ing I must've missed that lesson but I was thinking spinning molten metal makes a magnetic field so...

[@MisterCoolman29]

+TheBackyardScientist it's because of the elemental magnets inside of ferromagnetic metals, when heated up, the elemental magnets start moving quickly and getting out of order which causes the metal to not be magnetic for the time it's molten

[@PYROHIAN89]

youtube tought me that

[@Mrkevi123]

It's not common knowledge since probably 99% of the population don't understand how magnetic fields work. I'm an in Engineer and I remember bot even learning it in physics but in manufacturing engineering class.

[@peterawesomeness1]

I'm sure he knew that. The point of this video was to prove that point through experimentation.

[@no-fy2go]

this guy is single-handedly driving up home insurance for the whole neighborhood

[@cloudvariable9910]

I know everybody else is saying this, but you should research the Curie point. It is the point where ferromagnetic materials lose magnetism, and they don’t stick to a magnet. An interesting example is gadolinium, which sticks to a magnet when cooled below its Curie point, and falls off when above its Curie point. This experiment doesn’t work because it has been heated past the Curie point.

[@brucegriffin1404]

3:55 a cool magnet goes to waste :(

[@brucegriffin1404]

i was right :( sheeit

[@bassisku]

He used a cheaper magnet, it's not the same.

[@louisangelogarcia1774]

+bassisku yeah he thinks we dont know it it looks so small tho

[@cesdog27]

+bassisku good observation I noticed that as well. And it's definitely not a neodymium magnet because it would be extremely expensive and much more magnetic.

[@fredrickgoodwill285]

Now it's a hot magnet!

[@Arelias95]

Picking up stuff with a neodymium magnet with your hand in the way? Isn't it like... dangerous?

[@TheBackyardScientist]

+Arelias yes it is, but you quickly learn what is OK to pickup, what to avoid, and how large the magnetic field is. 800 lbs is the force on a flat metal surface, those iron bits only had a force of like 1lb

[@soulreaper6568]

+TheBackyardScientist can you shoot aluminium bullets in a fish tank vs molten salt bullets in your next video

[@Ausogiea]

Also, magnetic fields are subject to the inverse-square rule; double the distance from the source, and you experience only a quarter of the force. By the same token, halving your distance from the source quadruples the amount of force or energy you receive (this same law applies to any kind of field that expands outward evenly in three dimensions from a single point, like gravity, or heat, light and sound energy). My point is, with the distance his hand created between the magnet and the metal bits, the force would not have been 800 lb even with a flat sheet of metal... the magnet would have to be actually touching the metal to see its maximum strength.

[@soulreaper6568]

+Ausogiea fare point

[@squidcaps4308]

Was looking the same, a bit careless handling of dangerous objects.. We use them for dent removal on brass instruments and there is no way i trust that my hand is keeping the right distance every single time.. You need to handle them like explosives, really really think every move you make as it is really easy to forget, they are just a lump of metal in your hand. harmless, feels inert and the inverse square law makes it feel safe. Accidents happen on these in a microsecond and never when you are actually working.. They happens when you are not looking, just finished your job and you check the finished work and boom: fingers between a vice and magnet... Right at the beginning there sis a clip where magnet was used unsighted, under a plank without prior inspection of loose metal objects.. yeah, kids, don't do this, do't take your eyes off from it, check with smaller magnets if there are loose bolts, nails etc. before putting your hand in there with the death machine.. Mr backyard scientist needs to seriously learn how to handle large rare earth magnets or he will lose something. They really, really are not a joke and thinking that they will explode is a good trick (they won't but they will shatter quite easy)... It is good that he got nicked at the end as that lesson really was overdue. This guy is brilliant and makes awesome videos, don't want something as stupid as this to stop it. He will will loose a finger or two unless he checks his protocol.

[@user-lo7xo1oh8t]

It's not going to do anything because Thermal energy makes the steel atoms jiggle back and forth, disturbing their magnetic alignment. When the vibration of the atoms becomes too great, the atomic magnets do not line up as well, and the steel loses its magnetism. But I love your channel and I've watched almost every one of your videos :D

[@georgenelson6490]

Paused video before "On the magnet" I believe that it will make no difference for the thermite, but the magnet will at least be partially demagnetized. Blacksmiths find that when iron gets hot enough to work, it does not respond to a magnet. well before the liquid metal stage, and since you are producing a lump of Iron and Aluminum Oxide, this is just going to ruin the magnet... at least partially.

[@G87]

Thebackyardscientist is that crazy cool science teacher we all wish we haf

[@G87]

Had

[@13roses49]

yeah

[@hectortapia2676]

Not really, I don't want a teacher who gets his information from Wikipedia.

[@alastairward2774]

+Hector Tapia well, i spotted my doctor consulting Wikipedia...

[@redeemiced8968]

An Kyle hill (because science)

[@pirobot668beta]

But... if you pass a strong electric current through the liquid metal, then you could influence the melt with a magnet. Some molten metals can be pumped in this manner.

[@OhhGeee]

The magnet that he poured the thermite onto was alot smaller than the one he used for the previous tests. Seems like he switched them because he truly did not want to lose the bigger magnet. lol.

[@Syclone0044]

I was cringing the whole time he was handling that magnet. It's a miracle he still has all his fingers. I've been painfully pinched by magnets much smaller than that!

[@MitchBurns]

You know you could have used that magnet to turn that molten iron into a magnet when it cooled right? All you have to do is melt the iron, and then put it into a magnetic field as it cools. I think two magnets would have worked better, but still. That is how most magnets are made, although usually it is done with an electromagnetic field.

[@nickfrazier817]

steel and iron loose their magnetism attraction at about 1800 degrees Fahrenheit

[@nickfrazier817]

Ok yeah he explained that after I said that^ so yeah

[@HealthyFamilyVarietyChannel]

But yeah, I remember that from junior high science......so, being super smart, he just did the experiment to ???teach us again??? For those of us that slept through class? **His pool on fire vid was much better.

[@JDReC100]

R.I.P magnet. Your life was used for entertaining scientific research. May you never be forgotten. Also, that finger cut...ouch.

[@prismglider5922]

I feel like he should have known that heated iron does not attract to magnets from the beginning. One of my favorite experiments is levitating a paper clip on a string with a magnet and then heating it to get it to fall.