magnets melting metal?

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ElectroBOOM : Wow, are the eddy currents in that coin that strong to create that much heat? Impressive!

USWaterRockets : Would a strong enough magnetic field be able to melt the copper into liquid or maybe a plasma? This would make a cool explanation for how "energy shields" work on all the TV shows/movies/etc.

Benrob0329 : You're going to try to melt the bullet aren't you?

ֆהტϣ : Last video: "Melting a penny is illegal" This video: *Melting a penny*

Mik : you basically made an induction heater, right?

bexpi : Well that's one way to solder 😂

Cory Ory : How to solder without a soldering iron...

Robert Leitch : Cody made the world's noisiest soldering iron

SandPox : Wow damn, I didn't even know this was possible

Jerry Rupprecht : Looks like Cody’s making a new furnace.

Arno nümuss : Nice, you made a mechanical induction furnace :D

Strongest Avenger : Video idea: Use noble gasses instead of regular air in a bicycle's tires and see how to works when you ride it.

Peter Houle : haha literally demonetized

Peter Juncker : Real men would hold the penny in their hands.

Drew's Page : My mate Eddy Current seems to be at work here....

Daniel Bolan : Hook this up to an exercise bike and you've got a human powered induction heater!

Erzgebirge erleben : Long awnser short. Bullet stopping is not going to happen... Nice demo, thanks!

John Possum : A new way to solder. Unfortunately the lister engine/generator is not exactly portable.

NewtSniper : You're really trying to stop a bullet with magnets aren't you Cody?

Damian Reloaded : I wonder what kind of electromagnetic process would take away heat from the coin ?

Franz Goerlich : Hey Cody I was thinking about grafting a tomato plant to a potato one. Theoretically it should work because the have the similar least worth trying :))

WikiTool : Cody you should try and make a Sterling engine out of something preposterous like a soda can.

Eric Juen : Were you using the heat generated trough induction of changeing magtic fields?

10mintwo : It's cool but you just know half the comments are going to be moronic "bu bu buh itz from muh friction when it scrapes!". maybe put a thin piece of plastic between or something?

Super User : How's this even possible?

ChemLab : What kind of magnets are those??

Austin Randolph : Magnetic induction! The moving magnetic fields induce a current in the metal, which heats it up! I wonder if this effect is exacerbated by the fact that the penny is a combination of zinc and copper.

Krzysztof Mazurkiewicz : Mythbusters tried the magbet thing and it failed... buuuut i think i see a contraption that uses alternating magnetic field to melt metal... I would love to see it :D PS if you would have some metal underneath it just close enough to the magnets.... would it melt? Would a "mechanical furnace" be possible?

PsychoLucario : liquid nitrogen chilled bullets sound like an exploded bullet

AaronTheBlackDragon : I´ve seen something similar to this a long while back.

Justin O'Brien : !

Bryan Roberts : Can you melt the bullet fast enough?

Erik Stinson : It would be more definitive if you managed to hold the penny still at a set distance from the flywheel. I'm not convinced that the frictional energy didn't have a significant impact on the increase in heat of the penny. You had it touching quite a bit, I'm also curious how fast the belt was moving, you mentioned it's not as fast as a bullet but I'm still interested. Great video though, I'm excited to see what you come up with!

gertoh : it is really cool but it isn't persay the magnets that melt it as much as the electricity that the magnets generate

Eric Holden : Cool, just really cool. You should scale this up and see what you can do with it

ChemLab : would you be able to heat up iron like that?

T Saurus : 10,000% Mr Cody won't see this

ChemLab : wot

dontlikemath -.- : Nice.

JBroMCMXCI : Could this be used for a free energy device?

FarmCraft101 : Curiosity question: Was there a lateral force on the penny during this? It seems that if the penny was just sitting there, rather than being held in place by your pliers, the magnets would have had the effect of pushing the penny laterally, like what occurs in an induction motor. So in that sense, was the heat generated not only by the movement of the magnets, but also equally by your resistance to movement of the penny through the pliers?

Kevin : Don't you mean electro magnet?

Lagger Onesixfour : Welp, makes sense. Basically generating electricity in a conductor until it melts.

jopomeister : "Back in the day we all thought the end of the world was to be brought about by world leaders setting off nukes, but little did we know it was a humble backyard scientist who would bring our demise"

SD18 : Did the copper melt, or did it just change colors?

Nerys : You goddamn tease showing us that little bit and then stopping :-) that was pretty cool

Ian Farquharson : Can you use a heavier bullet and less powder? I'm in England and apart from pull back the hammer/slide,point and squeeze, I have little knowledge about how firearms/amunition. ThankQ. TkEZ»UK

Mikee Vee : Neat

Douggernaut84 : Get out! No friggin way! That is very intriguing..

Jamie Kawabata : This got me to thinking, how does the force and energy change with speed? I have a hard time thinking about relative eddy currents, so let me assume it's similar enough to consider a generator with a low-resistance short circuit acting as a brake. Twice the speed produces twice the voltage and (for a fixed resistance) twice the current, for four times the power dissipated in the resistor. Four times the power loss at twice the speed means twice the energy loss per rotation, so the braking force is greater at higher speeds. I'm not sure what you mean when you say force increases asymptotically and the difference isn't all that great. It seems to me the force increases linearly with speed. I think this means the stopping distance is also linear with speed (unlike a constant brake which is quadratic with speed). This relationship is something that can be checked experimentally.