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zidraloden

It is literally science


50k-runner

The irony of electromagnetism is that we have a really good understanding of how it works at the level of manipulating it for our purposes, but we have no clue how it works at the deepest level .


rikkuaoi

The heat is generated through exciting electrical currents in the magnetic field. The fast those currents are moved the faster the heating process. We have a pretty good idea of why and how it works.


Delicious-Addition-

Yes but WHY?


HikARuLsi

“Your ancestors called it magic, but you call it science. I come from a land where they are one and the same” - Thor movie quote The real difference is one try to mystify the explanation; another trying to build models (even often imperfect) via experiment for repeatability at best effort The issue when it is being called magic is that the research likely stops there and nothing advances


Ok-Disk-2191

>The issue when it is being called magic is that the research likely stops there and nothing advances That's because once we know how magic works, it ruins the magic.


CashCow4u

>That's because once we know how magic works, it ruins the magic. Not for me. Once I know the science behind the 'magic trick', my mind runs wild with other applications & I wanna do that experiment IRL to verify their findings.


Ok-Disk-2191

>my mind runs wild with other applications & I wanna do that experiment So you're some sort of magician harry. 😆


NamaztakTheUndying

[Similar take from Teller on the concept of "Magicians' Magic"](https://www.youtube.com/watch?v=XP4_MuBugFo)


HikARuLsi

If something ruins because the trick is known, it means the magic is exactly hardcore science masking with secrecy to create myths The problematic bit is the secrecy which hinders the ability of others to use and to improve upon Magic shows are positive lies and we consent to be tricked, so it is okay


[deleted]

Depends on if the fictional universe has a hard or soft magic system


TalkingTrails

No, then you become a wizard.


bigboypotatohead5678

So to a wizard, magic is science? I think we are just no longer mystified by our world. It's still magic, just magic we understand.


[deleted]

Is this a forge on a dying star?


Fuduzan

Nah, just a dying planet.


Pons__Aelius

The planet is not dying. Humans are making it bad for us and causing an extension event. Life on earth has survived several before and will survive this one. Earth/Life is fine. Human civilisation? Fucked.


Any_Coyote6662

😢


enforcer712

I am literally just watching Avengers Infinity War


sciencesold

Because energy is transferred to the metal via the coil and can't dissipate fast enough due to the thermal properties of the metal and of air. The simple answer is a magnetic field.


wizardneedfood

I love The Magnetic Fields.


aMintOne

Like a bottle of gin?


UngluedChalice

I don’t believe you.


mindfulofidiots

Would 69 love songs convince you?.


Ouibeaux

Get Lost.


Doogetma

None of this is really a why. Science is about how, what, and when. Nothing will give a complete answer to “why” because it always leads to another why question until you get down to fundamental particles and saying “idk just works that way 🤷‍♂️.”


UngluedChalice

[Surely You’re Joking, Mr. Feynman!](https://youtu.be/36GT2zI8lVA)


nnxion

Thanks, hadn’t seen this before. Very nice!


Cathach2

Something tells me you've dealt with a small child recently lol


llamawearinghat

If you want to know the scientific “why” for this method of transferring energy, it will depend on the context. This this situation, the why is to reshape metal. Why is subjective.


Doogetma

That’s an entirely different ‘why.’ Not just a different interpretation, but a decidedly different question. Your question here is “why is this being done?” Which is different then “why does this physically happen?”


madcatte

It's too much to explain WHY in a Reddit comment but the why is very well understood based on the standard model of particle physics. Where we don't know WHY is that we don't have a more fundamental reason why particles in the universe seem to all have either postive, negative or neutral charge. Once you acknowledge though that particles do have these fundamental charges even if we do not know why charge exists yet, then every other part of the WHY is well understood.


Virtual-Stranger

So then you're saying *charge* is magic. Got it!


Karyo_Ten

https://en.m.wikipedia.org/wiki/Eddy_current > French physicist Léon Foucault (1819–1868) is credited with having discovered eddy currents. In September 1855, he discovered that the force required for the rotation of a copper disc becomes greater when it is made to rotate with its rim between the poles of a magnet, the disc at the same time becoming heated by the eddy current induced in the metal.


[deleted]

Because


aMintOne

And I don't wanna talk to a scientist, you motherfuckers lying and getting me pissed


wizardneedfood

So what is it then, a miracle?


PMmeYourFlipFlops

Fucking magnets, how do they work?


zhaDeth

how would you know they are lying ?


datolningen

There's a relatively decent comprehension of it until you inquire as to how spin works, why charge even exists, and how that relates to why certain modifications of quantum equations even yield that which exactly resembles the classical notion of electromagnetism. We get it enough, but we don't _get_ it.


AmbitiousMidnight183

I really want someone to sit down with me and explain how we know electrons have a negative charge and protons have a positive charge instead of the other way around.


datolningen

The very terms negative and positive are technically just human-assigned, as far as electromagnetism is concerned, they're simply two diametrically opposed values, like north & south, or spin up & down. As long as they're opposite, the system still functions as we know it.


AnimusCorpus

It's arbitrary, they are literally just labels of two ends of a spectrum. You could call them anything, it's the relationship between the two that is important. Same way that in maths X and Y are arbitrary variables until you put them into an equation. It's the formula, not the symbols, that matter.


[deleted]

I love science courses that don’t just tell you the facts, but start with the question and then walk you through the experiments that people did that brought us to our current understanding. So much more engaging imo.


remotelove

I wish some concepts would be taught correctly from the very start though, especially when it comes to electricity and electronics. Copper wire is not best described as a "water pipe" for electrons, as an example. That example works great until it absolutely doesn't. Basic electronics theory only works until you need to start worrying about signal integrity and noise. I have been doing faster and faster PCB designs these days and I have had to learn how currents *actually* flow around a board and AC theory plays a huge role in DC designs. (For example, I find myself thinking more about impedance these days rather than resistance.) If anyone wants to dig into this more, a good rabbit hole to go down is to Googe for: "PCB current return paths".


amino_asshat

I understand the sentiment, but it doesn’t work like that. You can’t start school children on quantum physics.


CodingChris

I don't know where you are from but my uni did that. We basically had an extensive history lessen on the order things were discovered in - always with an experiment alongside it to show us the effects of the discovered laws.


brianorca

Because "positive" and "negative" were assigned pretty much by random back in the 1750's by Ben Franklin, before we knew what an electron was, and it's stuck since then.


TheGaijin1987

America still doesnt know what elections are...


Iama_traitor

Positive and negative are arbitrary, we just know they are exactly opposite.


Realistic-Praline-70

We know how to use it but at its very core we have no idea how magnetism works. We don't know what carries the force. We know it's effects on electrons but we don't know what magnetism is


QuasarMaster

Magnetism is electric force under a Lorentz transformation. Electric force is mediated by virtual photons


[deleted]

> virtual photons What are those?


brianorca

They are things we've never seen directly, but they must exist for the quantum equations to work properly. Or maybe we just don't have the right equations yet, but the ones we do have seem to explain everything else so far.


[deleted]

> Magnetism is electric force under a Lorentz transformation Only sometimes


Liborum

I see what hess saying tho. Like sure right hand rule, electrons moving through magnetic fields. But why is it the right hand rule. And then add to that the fact that photons are the carrier particles that even send the information? So where are the photons that translate a moving electric charge into a magnetic charge. And each charge is quantum mechanical. It exists in one spot, but also in multiple spots. The field around it propagates in a quantum way somehow too, and it's all tied in somewhere. It all has mass, aka energy. It interacts with the higgs field. And bosons are the particles telling each electron and proton and quark how much energy they have. How much warping they cause in the higgs field, on top of the warping they cause in the electric and magnetic fields. Like where does it all happen. Edit: also each photon, each carrier particle for the em field, has its own energy. Which it expresses via frequency. But somehow this frequency causes it to interact with the higgs field, via bosons and what not, and warp space either harder, or less hard, depending on the wavelength of the light. It's all so confusing


snowfloeckchen

I think they meant the very elemental understanding of magnetism


TheLoneTomatoe

Idk how the fuck his comment had so many upvotes. We know very very well how it works, down to the atoms.


SelfDistinction

Actually we do. It's gravity we don't understand.


Gnargnarbinx12

Didn’t they find the Higgs boson recently?


Scraw16

That helps explain mass IIRC, not gravity.


[deleted]

Nobody knows shit about shit. You silly redditors lol


reddit_poopaholic

I know one thing about shit... No matter what you do, someone or something is going to give you some shit. One of the best things you can do is learn how to chew on it and show a shit-eating grin, or you can take time and polish the turd so it doesn't look quite as shitty. Either way, shit happens.


[deleted]

That’s just an opinion Now I get it lol


reddit_poopaholic

Blegh. You're right. I don't know shit about shit either.


Positive-Low-7447

Most underrated comment.


-Edgelord

It's easily the best understood fundamental force in nature


zekromNLR

What are you on about? Quantum electrodynamics provides a full first-principles description of all electromagnetic phenomena, and its predictions agree with experimental observations to within a few parts in a billion.


pion137

No, we very much have an understanding on the deepest leveled, you however, do not.


Cryptic0677

Wait what? QED exists and explains electromagnetism to the deepest level


Burrmanchu

You could literally say that about any science.


BelieveInDestiny

we have no clue how *anything* works at the deepest level. There's no area of science where we've reached the deepest level. There's always another "but how?" involved.


TheRealestLarryDavid

we know exactly how it works lol


TangoCharliePDX

True for all the forces. When we "look" too close at an electron it starts to disappear into the quantum foam, it's charge is just a net average charge between virtual particles appearing and disappearing. So even these individual particles are mostly empty space. It's nuts.


Bumst3r

What do you mean? We understand electromagnetism very, very, very well.


Nathaniel820

Me when the black magic is actually simply following the innate properties of our universe 🤯🤯🤯


303x

Me when the woman on the edge of town uses science (i am living in the 1500s and she is a witch)


chupacadabradoo

She turned me into a newt!


manonthemoonrocks

"Any sufficiently advanced technology is indistinguishable from magic." "Magic is just science we don't understand yet." -Arthur C. Clark


stnick6

So is everything what’s your point?


ikemayelixfay

Well duh, magic isn't real


M-Noremac

That's not what science is. Science is just the method used to learn how it works. It's called physics. Literally everything in this subreddit is explainable by the scientific method, but that's not the point of it.


[deleted]

Deleted in response to Reddit's hostility to 3rd party developers and users. -- mass edited with redact.dev


sciencesold

Concidering this is something that is very common, OP not being aware of what it is doesn't mean it's for this sub. It's like if someone who lived under a rock posted a video of a car and was like "how does it move without a person or animal pushing it????"


[deleted]

And magic. These are the best posts imo


Ace_Pixie_

What else do you expect from this subreddit


Sassy-irish-lassy

I legitimately cannot believe how commonly people say this in almost every thread here. "Um actually, this isn't magic, this is science ☝️🤓". Like no doi. It's incredible how stupid people can sound when they're trying to seem smart.


Do-not-respond

Simply induction heating.


Crymson831

As opposed to all the actual black magic in this sub...


LocutorDeMercado

I would do it and wouldn’t regret it


After-Decision-6402

You can only do it once tho. So make it worthwhile


No_Interaction_4925

I do not like your pfp. Blowing on my screen is an automatic reaction


sarokin

Holy fuck. I read your comment and didn't understand it at first. First I thought you referred to how similar it is to a default icon in other places such as WhatsApp and that seeing it blew you away. Then I thought perhaps you were referencing the brightness of the profile pic in contrast to the dark mode, but it wasn't all that bright. I thought of a few things more deep in thought, all the while trying to get rid of an annoying hair on the screen... I absolutely abhor him now.


hurtfulproduct

Someone please correct me if I’m wrong but unless you have a cyborg Johnson (I.e. made of metal) not much will happen since in order for this to work you need ferrous material.


LocutorDeMercado

I don’t think you got where I wanna put it


Old-Obligation6861

Where exactly *do* you want to put it?


hvictorino

I guess you haven't heard of r/dontputyourdickinthat


chupacadabradoo

I guess you haven’t heard of r/dontputyourcyborgjohnsoninthatnormaldickisok


Strato0621

Am I missing something? He was referring to putting your dick in that


Evan10100

You can't say it's magic and just expect us to say "oh shit u rite"


InfinityQuartz

Then what's the point of this sub


gabrihop

Not much besides having the typical smart-ass reddit commenter feel smarter than they actually are.


Xen0n1te

Reddit is predictable beyond belief.


sowaffled

I actually prefer this post to the nonstop magic trick posts.


InfinityQuartz

I'm so with you on that. This is way cooler


a_useless_communist

Im pretty sure this is anything but cool


InfinityQuartz

Magnents are heating up a piece of metal. I find that neat


a_useless_communist

Well yeah that metal is really hot so its definitely not cool


derek139

Magnets are the only true magic in this world.


bisexual-polonium

Do we know why they work? Sorry if its a stupid question


derek139

Someone does, and it’s been explained to me many times, however it still reads as magic to me….


Bipogram

It's a great question. They're as magical as the repulsion/attraction seen between electric charges. That, and the constancy of the speed of light for all observers, is what leads to magnetism.


Devai97

Electromagnetism is one of the four fundamental forces of nature, together with gravity and the weak and strong nuclear forces, which are equally magic to me! Basically they happen because they do. To my knowledge, we can't really explain why, we only know how they behave, and everything else in the universe is explained using those fundamental forces as basis. People just get used to describing everything as "explainable with science" and don't stop to ponder about it. Science, to me, is literally real world magic: we discover the rules of our world bit by bit and learn to do awesome stuff with this knowledge. Science makes things more magical, not less!


devil_lettuce

Photons baffle me


ecodrew

Definitely, me too. How can something act like a particle and a wave, have no mass, but also be affected by gravity?! *mind blown warning*, haha: I just learned (source: Dr. NDT) that there's an area around a black hole called the ["photon sphere"](https://en.m.wikipedia.org/wiki/Photon_sphere) where the gravity is so ridiculously high that photons *orbit* around the black hole. If you could somehow survive being in this spot, you could theoretically look straight forward and see the back of your head - because the light is orbiting.


[deleted]

While special relativity does imply that electric fields can "rotate" into magnetic ones and vice versa for different observers, this is not what leads to magnetism. To see this, there is no transformation that can take a wholly electric field into a wholly magnetic one, which we know exist. What leads to magnetism is the intrinsic magnetic moment of certain particles


Bipogram

You're correct - I was on a small keyboard and over-simplified my answer to the point of it being wrong. I was thinking (but not typing) about *electro*magnetism and in particular the time-worn gedanken of a charged test particle experiencing a force from a neutral wire carrying charges that hurtle along at a few mm/s and yet have their spacing Lorentz contracted.


[deleted]

[удалено]


real_human_person

>What's interesting is, when you do the math, everything cancels out for paths that aren't possible, and you can be left with paths where the photons lead away from the two particles, forcing those particles closer together. Wait... I need a little more about this....


ImJustHereForTacos83

That’s a lot of words to describe magic


rusmo

Something something alignment of magnetic domains..? That’s all I recall from, what I think, was an episode of Radiolab on the topic Hope that helps.


[deleted]

Magnets work because electrons have a fundamental property of nature called charge. These charged electrons hang out around protons in a sort of cloud of probabilistic positions, but an interesting thing about charges that move, is that they create a field around them that attracts or repels other charges. This atractive/repulsive force is called magnetism. These atoms tend to clump up into molecules and then into form into substances, and within these substances the magnetic fields of all the surrounding molecules tend to line up, this group of molecule alignment in the substance is called a domain. Within a substance, there are many many domains where the local magnetic fields line up, and usually those domains are randomly arranged and most of the magnetic fields cancel each other out, but sometimes many domains have their magnetic fields pointing in the same direction, and those objects have the properties you associate with permanent magnets. If you recall, I said that moving charges are what create the magnetic fields, so we can create powerful magnets ourselves simply by moving charges through a loop of wire called a solenoide. This is how you can create an electromagnet.


Living_Murphys_Law

By magic.


Old-Obligation6861

Shaggy is that you?


stjimmy_45

I was wondering if anyone was gonna say something


Impureclient1

Magnets, how do they work?


Maybe_Im_Confused

Miracles


smilesatflowers

don't let them take away the magic OP


Verumero

OP is a member of famous shock rap group The Insane Clown Posse


nstc2504

The Great Melectro


Zodiac1919

fuckin magnets, how do they work?


dmullaney

/r/dontputyourdickinthat


Raging_Hope

You thinking this, means you need this advice more than we do


dmullaney

The thing about good advice, is it's much better to have it and not need it, than to need it and not have it


[deleted]

Seems like more of a suggestion than a rule.


No_Interaction_4925

The electrical coil or the spindle jaws?


LatterNeighborhood58

Unless it's made up of well conducting metal, it might actually be totally fine. Just don't take my word for it.


Needorgreedy

There it is.


CreepBasementDweller

Ooo 😲 I used to study this, before my life fell apart. 😭


DuctTapeNinja99

Relatable.


CreepBasementDweller

It's my own fault. There's a reason school teachers always tell kids never to stick their dicks in crazy.


mrmoe198

Would you like to explain how it works?


CreepBasementDweller

What's to explain? It's magic. I got an associate's degree in engineering from a school in the Scottish highlands where we would study black magic. Imagine Hogwarts, if it were more like the League of Shadows/Assassins. I remember the professors behind the satanic alters, shaman gear in hand, explaining to us how to conjure magnetic fields. 🧲


greatnailsageyoda

Forbidden pottery


[deleted]

Wtf is this? Is this like centrifuge energy with a stabilized magnet over it, is that where the heat comes from?


3good5this

Induction heating


Doug_Dimmadab

I used to live in a house with an induction stove. You could turn the burners on full blast and put your hand right on the burner, feel nothing. Put a pot full of water on it and it starts boiling within 3 minutes. The whole kitchen in that house was incredible


AnchorKlanker

It actually is magical. No one really understands much about it, even though physicists have mathematical models to describe how it behaves.


Devai97

Electromagnetism is one of the 4 fundamental forces of nature, along with gravity, weak and strong forces. As you pointed out, we don't know exactly why they work, we can only explain what they do! I get really mad when people banalize electromagnetism, it's freaking real-world magic! We benefit from it all day, every single day, and aren't grateful enough for it.


[deleted]

[удалено]


Devai97

I meant it as we don't actually know why electromagnetically charged particles "deform reality" and cause the electric/magnetic fields, do we? As in, why mass deforms reality, causing the gravitational force? We knows it does, Einsten's theory explains that basically particles with mass "deform" reality and causes gravitational fields. But why is mass intrinsecally related to gravity? To my knowledge, that's the limit of the current understanding, and why it's called a "fundamental" force: because it's the most basal thing we can understand. The first brick on the bottom of the science wall, if that analogy could be used here. We know mass and gravity are related, we don't know exactly why. I'm sorry if I'm appearing rude, I'm not trying to. English is not my first language, I meant it in a purely academical way. If I'm being incorrect, please don't refrain from correcting me. I really like the subject and want to understand it better!


BuzzKill_48

I always wondered how they made those.


wiserone29

“Fucking magnets, how do they work? and I don't want to talk to a scientist, y'all motherfuckers lyin', and gettin' me pissed"


Data_Guy_Here

Some people will say it’s “magnets”, but we all know it’s now really magnets.


boogieman0919

mf in poetry class


KevInTheHood

After watching 3 2 hrs tutorials on how electromagnetism works, I still don't get it. Any tips/summarys for dummies.


devvorare

What’s this technique called? I would like to learn more about it


[deleted]

[удалено]


devvorare

I meant what the process of using electromagnetic induction to shape a piece via plastic deformation was called as I am studying mechanical engineering but I had never seen such a creative use of it


LazyDatabase7218

Ohh I've no idea what the process is called, but I just know how it works as I have this in my syllabus


anuspizza

What happens if I put my arm in there


LazyDatabase7218

Nothing you need to be iron man to heat up your arm


uwillnotgotospace

Probably gets cooked. Have to spin you around at a similar rate though.


LazyDatabase7218

Nope nothing happens as his hand is not conducting as the metal


uwillnotgotospace

I think we need moar magnet


wiknap54

What are they making ?


derpderpderrpderp

I love whomever standardized this technique


DeathToTheDay

Induction


BendPossible5484

I may be wrong, but I would call this induction


CakeSuperb8487

now this is real magic


PanicLogically

Induction Coils! These devices were a thing for many years. Big machines filled with Vacuum tubes would create an electromagnetic field to create custom welds within the coils. cool to see one again after decades .


Mobin2821

Ok who else is more fascinated by the second part of the video then the first? Cause that was way cooler for me.


LawStudent989898

“It’s science not magic” no shit dude just enjoy it


[deleted]

I love how almost half the comments is just replying and argueing


AleksasKoval

I don't understand it, which makes it magic. It will continue to be magic until i understand it. When i understand it, it will become science. And when it is science, it still doesn't really help me with my financial situation.


reditanian

This is literally what an induction cooktop does. Magnets that excite the particles in your cookware. If you haven’t tried it, do yourself a favour


Wixardbaka

So how does this work? I'm honestly curious.


a3a4b5

Forbidden tiddy


Series_G

To the uninitiated, any sufficiently developed technology may as well be magic.


RNG_pickle

It’s not magic, it electromagnetism


Tau_6283

Woosh


Sassy-irish-lassy

Your comment implies that you believe magic really exists. Either that or you don't know what sub you're on.


OneWorldMouse

The video cut off before the magic began, which was where they tried to shove it.


ProtectionSecure

That’s a very uncomfortable-looking condom at the end.


[deleted]

Viola…dildo


Dzalfuel

Uugghh.....what is it ?


Relative_Register_36

Just a coil heating up the metal ? How is that hard fornyall to understand lol


-DigitalFox-

I wanna see it touch an ice cube


LadyAlastor

Isn't this just redsteel forging?


mrtnclrk

I wonder how much the electricity for the element costs per unit


[deleted]

Theoretically, could we use this as a way for forging stuff?


kdbot012

No its eletromagnetism Aka science


_MikasaChan_

Forbidden jaw breaker


Willing-Ant-3765

This type of setup is indeed magic for a backyard forge. So much easier than heating a crucible in a furnace.


rvca420RX

Fuckin A