Can a non-magnetic material be stopped by a
Вставка
- Опубліковано 17 жов 2024
- Lenz's law states that the direction of the electric current induced in a conductor by a changing magnetic field is such that the magnetic field created by the induced current opposes changes in the initial magnetic field. It is named after physicist Emil Lenz, who formulated it in 1834.
👍 LIKE and SUBSCRIBE for more fun science content!
➡️ Follow our channels at linktr.ee/tamu...
#physics #science #fun #reel #learn #short
"AAAHHH! I'm good! But why am I good?" A true scientist right here
The sounds of science
The scientific process, if I recall
Because he is good haha
Half Life scientist.
Frick around- find out! The scientific method.
Dude risked his future generations to teach us Lenzs law. Huge respect!
E
The current in it is Eddy current.
Isn't like he was ever gonna use them..
Risking his grapes there
His whole generation
Man risked his bloodline to educate us on physics. Respect 👏
funie
If he'd been wrong, he could have possibly won a Darwin Award. No one said you have to die to win one, merely remove yourself from the gene pool...
How did he risked his bloodline?
Also not everyone want kids, why do people just assume that everyone want kids?
Magnetic brakes are used as safety devices on roller coasters. When you’re at the end of the track and you feel that strong deceleration, that’s from magnetic brakes. Magnetic brakes are also placed along portions of the track in case it needs to be stopped in an emergency. Here, springs would normally keep the magnets up, but the controls keep it down. If the controls go offline, the brakes will immediately extend and bring the coaster mostly to a stop. Friction brakes will then fully stop it
some coasters are fully friction, some are fully magnetic some are a mix
@@c_corgimagnetic brakes will never fully stop a coaster. coasters do like 20 magnetic brakes then either a drive tire or friction brakes
That’s actually pretty cool. Thank for the fun fact 👍
Same effect that explains the results of dropping a magnet down a copper pipe.
And ball protection
Not just putting his life on the line, he's putting his entire family line on the line
You’re the fifth comment in a row to comment that. Why everyone copying lol
No he doesn't a women can even walk on balls with high heels and u will be fine
@@dowon_btw who found this out?
@@Arman_914fr
@@dowon_btwyou know too much
It's weird flipping through youtube shorts and seeing my college roommate from Freshman year. Keep it up Dawson, you're crushing it!
Bruh
Bru-
Pov:'Dawson' didn't go to college-
I saw my college roommate on Mugshots.
@@blahbadyblah lol
Doctor: “So why your balls all mushed up again?”
Him: “science…”
Doctor: "So um biology or physics"
For your service
AGAIN
@@LaLiTi Wife: Of course!
@@LaLiTi Oops I mean physical
I've known about this for a very long time, but this is the best demonstration of it that I've seen. Good work!!
future children woulda been gone if it werent for science
💀
imagine physics failing right then 😆
Because they rely on genetics, chemistry, biology, and physics to exist?
@@thegreatandterrible4508 That's totally what He meant
@@thegreatandterrible4508 grubby bubby hubby
I had this absolute legend (Dr. Dawson) as my Physics 2 E&M prof at Texas A&M, literally the best professor I’ve ever had
Me too! He was amazing
He sure seems like a legend. Wish he was my professor. Wish I could have gone to college at all 🥲😆 seriously though, this presentation was epic
What is your name? I'll let him know.
I worked at a metal shredder facility years ago, and they have an eddy machine to sort all non magnetic metal from garbage left overs from shredding cars, etc. The end of a conveyor belt has an eddy current going through it and the non magnetic metal will actually FLY off the end of the conveyor belt. It was the coolest thing to see.
Little D "conveyor belt n magnets ..."
now that I can understand
You are watching car carcasses parts being segregated. So brutal.
@@immanueldelcastillo6041 Or CARcasses works. As well 😂
Same with recycling plants. It always fascinated me how non magnetic aluminum cans were magically flung 20' farther then all the other trash into collection bins.
Magnet thing doesn't work...
Man: looks at camera in comical disbelief and passes out.
I wish my physics teacher explained physics this easily.
no problem solving no equations...just basic info. might as well just not go to school if that's how physics are thought. it would be pointless, just saying.
He didn’t actually explain why it works lol
@coffee5330 it would make the class interesting and make people understand a few applications of the law instead of just memorizing it and applying it in numericals which sounds like maths with extra steps not physics
He don't have balls to do this
@@CoffeeMonster01what if this just compliments the usual equation methods of teaching... Not everything has to be black or white, u know
"Oops, forgot to put the magnets back" 💀💀
ballsn't
😂
That's why there's a chunk missing 😂
@@garbearboy838😂😂
@@MelancholyKnight Dude got balls of steel I guess lol
Bro really is putting his life on the line for future generations 💀
he's putting the future generations on the line
His own future generations were on line too
Not for future generation, Musk electeic truck uses this
🗿🍷
"I'm good. But why am I good? I WANT PAINNN"
Fun fact this is basically how rollercoaster brakes work!
Neat! I didn't know that. I think it's also how induction heaters work.
There is a ride called the "Pit Fall" back home. It does this exact thing. Very cool
Truck manufacturer Saurer even experimented with using them as an auxillary brake. Since the eddy currents get stronger when the pendulum moves faster this would be a neat system to keep your speed low on steep slopes, and it won't lock up the wheels. But they eventually concluded that such a system would be too heavy for road use
@@HATECELL Musk could make one work.
@@HATECELLall modern electric vehicles use exactly that effect to engine brake whenever you're going downhill off the accelerator.. Regen braking
2 hanging circles won't hurt their own kind ... 😂
No replies lol😂
2 circles (cylinders actually) vs 2 spherical-ish objects. 😛
@@kaushikdas47akshaully🤓
This is the REAL physics explanation.... lol. Thank goodness we have Occam's Razor.
(I'm not implying Occam's Razor is wrong, but rather, if you don't know how to apply it correctly you can come to some pretty dumb conclusions. This is exactly why MWI of QM is the simplest explanation..)
😂😂😂😂😂😂😂
It's not your life that's on the line, it's the depth of your voice.
Pitch*
@@Bowfinger6383 Nothing changes. Once the voice box has been altered by puberty, it's pitch is set, and removal of testosterone after this makes no difference to its pitch.
@@martinXY This is half true. Your voice’s pitch isn’t technically set after puberty, it can be changed without medical procedures, because it is, above all else, a muscle. However you are right that stopping testosterone after puberty won’t change the pitch at all.
@@elainasynranelt vibration of the vocal folds makes the sounds we produce. The pitch is governed by the thickness of the vocal ligament. General movement is under control of the laryngeal muscles. The vocalist muscle in the larynx fine tunes the pitch.
Did these guys just
Not get the joke
Bro put his cherries on the line swinging a set of bigger ones at himself.
The shape... Where it could've hit...
💀💀💀
Looks like an ICE cream
funie
2 round things and 1 long thing
That's why he said *life* on the line
@@jason-ethanhein8554 a long black chocolate popsicle
My man was ready to sacrifice his future generation for science. Get him a Nobel prize
you mean no'ball' prize?
*Darwin's prize
@@geonheecho590 brilliant
I mean, it takes some balls to risk your balls
@@chuck-norris you mean the no ween
dude not only put his life on the line but his future generations as well.
Some soccer goal keeper should take this note seriously, as I've seen the reference
Jesus loves you!!
@@awesome346hes not real
School ❌
UA-cam Shorts ✅
you learn this in physics at the end of highschool. Its just more in depth than this, so they dont teach it in science, you have to elect for physics for it.
@its_nemby Dr. Dawson is a professor so he teaches this at school too.
Cuz yo ahh don't pay attention
I wish these videos were available when I was in school.
Fr it's sad
why, did you.... forget to put the magnet or something
But you'd not know the difference between brake and break.
This is essentially how Eddy current inspection machines work. You can detect very small discontinuities in various materials by passing a magnetic field through it with an electromagnet, then analyzing the change in current in the electromagnet as you move it over the surface.
That’s very interesting, I never would have thought it could be used like that. Though to detect tiny cracks wouldn’t it have to detect tiny changes in current?
as an NDT technician you sir are correct.
Called "Magnaflux".
i love how even though it will stop he still screams each time it falls
Its just for the video man 🤦♂️
@@dreck250true, but that wasn't very nice.
Love the shape
He was 2 feet away from losing his future kids💀
I like how he elaborates on top where the cuts stop the eddy current from forming the opposite magnetic field, a lot of ppl explain lens law but not often see ppl elaborates on the “what if” part 😊
Dr. Dawson is one of the best professors I had!
Brakes like that are used on rollercoasters as they have minimal maintenance and there's basically nothing to go wrong.
Thank you, I was wondering if they used this for some sort of braking mechanism.
It is also used in many elliptical bikes.
Thank you for using the proper 'version' of brake and not break. 👍
and well, trains
Wait until the roller-coaster's wheels get enough scratches to act like the disc with the cuts.
Magneto watching this video: “BORING! ALREADY KNEW THAT!”
My guy almost lost his natural pendulum
Edit : " Mom, your son's natural pendulum is FAMOUS "
Oh god
so funny
😂😂
💀💀💀
😂😂
"AHHHHHHHHH"
"I'm good"
"But why am I good?"
Very wise words...
*vsauce music*
Sudden raising of an eyebrow
Hey Vsause! Micheal here!
Hey vsause! Michael here
@@Waterplesk Hey Michael! Vsauce here!
imagine if the law didn’t work or he used the wrong magnet or forgot to place a magnet there..
If that happens, bro will fail to extend the number of his family members
"if the law didn't work"
If the law wouldn't have worked he would have got a Nobel prize and created havoc in the entire physics community. And no children too.
no more children
He would’ve obviously tested it before he done that so there isn’t any risks👀
Saving multiple lives, what a hero
bro risked his children right there 💀💀
What children?
@@The-Official-Mantis The ones in baby batter form
@@The-Official-Mantis bro what is your age??
this is the same principle used on roller coasters! most rides use a combination of friction/eddy magnetic braking for trains to come to a safe stop :)
yup. There are a few high speed trains which also incorporate eddy current brakes
To be exact the cuts don't actually prevent the currents completely but rather makes it so they only appear im the smaller areas between the cuts. Therefore the effect is still existent but not nearly as strong as on the full circle.
Still a great video though physics is fun.
Yup, and you can see it starting to break before reaching the other plate
This is also why transformers are made of laminated sheets. It decreases eddy current losses in the core of the transformer by dividing/separating the total surface area.
@@ba2hln14 you mean optimus prime has op breaking systems?
So how do you explain away the rubber scuff marks that line up perfectly with the point on the supposed magnet?
@@HunglikeagrimsmoIt’s easy to make everything a conspiracy when you don’t know how anything works.
It’s a similar idea as to why electric motor stators and rotors use stacked plates to hold the windings. It reduces and disrupts the Eddy Currents. At least that’s from what I understand.
rollercoasters use this for braking. it's the really abrupt but consistent braking at the end as you come up to the start
Okay I was curious if that's how it operates since this is the first real world scenario I could think of
@@NoahHeadglitch Not a use per say, but transformers have segmented cores to stop eddy currents like the cut disc.
Laminated cores*
What happens to all the energy though? Does anybody know that
Eddy currents are how a lot of modern roller coasters brake. This means that they are unable to fail, as the faster they go, the more force is applied
Wow cool!
Fascinating
"unable to fail" is a loaded phrase when safety is involved. We don't want to challenge the universe, just exist as harmoniously humble amongst the infinite number of variables that exist to usurp our absolutes from their thrones.
Cool fact about roller coasters brakes. I wondered once but got distracted and never pursued. 🤙🏼
And the drop towers.
Depends, are the magnets used electromagnets? If they are then it is possible they can fail
"I'm gonna put my life on the line for science and for you" That got me bawling
if you are not sure about the result , it's probably not a sceintific fact.
One could say...balling 👀😂
He aint just risking *his* life... 💀
Bro screamed in horror and cheerfully said "am fine😃"
He risked everything over there
the cuts don't "prevent" eddy currents from forming, they reduce them. same way transformer cores are made, laminated thin sheets have many small eddy currents. if that same core was one solid piece, the sum of that one big current is greater than the many small ones in the laminated core.
this slight correction is needed
but what is an eddy current
@@Iugeer they are kind of like turbulence
turbulence from metal? you need to be more detailed man
@@Iugeerchanging magnetic field creates a potential difference (voltage gradient) all across the material (Faraday’s law) Since the material is conductive, this allows a current to flow (Ohm’s law). That’s the eddy current. The eddy current makes it’s own magnetic field (Amperes law) which opposites the field that created it (Lenz’s law), pulling it back towards the magnet, stopping the motion.
That enough detail?
Corrections: 1.eddy currents are not eliminated, they are rather minimalised by the cuts.
2. The emf in the plates is due a time variant area, and not a time varying magnetic field. This essentially means the same in terms of flux change( magnetic flux is the dot product of magnetic field and area vector in the direction of the field) but it is a considerable difference, physically speaking.
i promise you no one cares
@@goblingoochgobbler5759 well, thank you
@@PXO005 Do you know why in english speaking countries those parasitic currents are usually called Eddy currents? Here in Spain (and in other European countries I think as well) those currents are called Foucault currents. It is quite curious.
@@adriansolis126 oh I have noticed that too, it has 2 names. Foucault actually first discovered these currents but I suppose they're called eddy currents since they're a similar phenomena to swirling eddies in turbulent flow in a fluid (atleast their shape is similar)
@@goblingoochgobbler5759 too many scientific terms for someone named goblin gooch gobbler I guess
Vsauce: your aluminum is safe, or is it?
Regenerative braking in electric and hybrid vehicles works on same principle.
yes but in that case you don’t let the resistance dissipate the energy
Yeah, basically. Except it's with copper, which can be magnetic, after introducing a current.
The regenerative braking happens when the magnets moving through cause an electric field, which causes a current to form, which puts electricity back in the batteries....
Remember, every electric motor is an electric generator, and every electric generator is an electric motor.
Same so for speakers and microphones, and LED lights and solar panels, oddly enough.
Eddy current, is also used to check any cracks in fasteners! Cracks within the flange of the fastener, doesn't allow the current to pass thru along the flange of fastener, similar to the wheel that has cuts in it. Eddy current plays a huge part in why your car doesn't fail when under constant pressure, especially when it comes to suspension fasteners.
True, cracks render the current incomplete.
@@nothingbutpain863 cracks do not make current imcomplete, they reduces the conductor cross section area perpendicular to the direction of eddy cuurent thus increasing the electrical resistance.
Had him for E&M and dude was a baller. One of the only profs I’ve ever had that actually got excited about what he was teaching. Like, I remember he got giddy when he ended the lecture on Maxwell’s equations😂😂
My E&M teacher too! Got me curious enough to look more into maxwells equations and electromagnetic waves after class
"RAHGGHH! I'm good." Got me🤣
"Well, the interesting part is over. Get your pens and paper, we're going to calculate..."
This is how the old school energy meter in your homes worked. The disc which rotates in the meter is because of the eddycurrents✨..Science is amazing
I think EEVBlog has a video about that. There's some interesting physics that goes into dealing with measuring real power versus apparent power in those things.
this is how rollercoasters with magnetic brakes work slow the trains down to the right speed. if no braking is needed, the brake pads get moved out the way of the aluminium slots on the bottom of the train
Wish I had such an enthusiastic teacher
Very cool demonstration. That’s how microscopic cracks are detected using an Eddy Current machine in NDT.
What's an NDT?
Non-Destructive Testing@@Gautam2212
@@Gautam2212non destructive testing. Heavily used in industry where failures can result in loss of life or huge losses. Like Aviation or Civil Engineering
Cool, precision testing of high quality material rockets aircraft
Alright guys, I'm installing magnetic brakes on my car. Wish me luck
Actually, you might be surprised to know high weight semi trailers and passenger trains use magnetic breaks.
also roller coasters!
@@gordonhartman1711not for all the way to a stop. Regen braking is essentially eddy current braking and doesn't work under a certain speed. You need mechanical brakes to actually stop
But it is possible to make it so a magnet can move the car using this as a foundational idea and then have a mechanical break to insure stoppage? Perhaps?
@@DarkAttack14When a brushless motor get shorted it will jam up instantly with only magnetic force. However tho, the stopping force isn’t that great if there is weight behind it.
So happy. Learning about electricity in college literally made this video make sense to me. So glad I’m paying tons of money so I understand electromagnetic force and eddy currents lol. Great short!!
Right brain: AAAAAHH 😫
Left brain: I'm good 👍
Dude deserves a Nobel and an Oscar
Yup everyone deserves them. Equality!
And a Pulitzer, and a Grammy, and a Game of the Year, and an Emmy, and a Medal of Honor, and a Booker Prize.
My man,you can compliment someone without giving them oscars and nobels
@@stylinsandwich you deserve an Oscar for saying that.
@@stylinsandwichWhaaaaatt?!?! REALLY?
I like how he still screams even though he knows that he's going to be safe 🤣
It's called acting.
Modern rollercoasters use the same principle for braking. It's great because it has no moving parts and no friction.
You can also use eddy currents to melt metal.
And significantly less maintenance, which is great cause.... They didn't want to spend that much money on maintenance anyways.
"Im good, but why am i good"
Pretty good unintentional double entendre lol
I recently did an Eddy current weld inspection exam and passed! It’s cool to see this come up as a suggested short
Dude was so confident he was willing to risk it all
I work at a steel mill in Oregon creating rebar, and we use an eddy current device to monitor the metallurgy of the rebar as it’s being produced. Pretty neat stuff!
Cool!
So how it work?
This was an awesome demonstration, thank you.
Love how he knows his contraption works yet he still screams for dear life after letting go
It's called acting...
the fact that physics teachers will risk their future to show you how things work is amazing
you don't see them in many situations, but for very precise balance scales, they use this setup to damp out scale oscillations.
That's the best way to teach science i had ever seen. 👍
God i love magnetic induction, by far my favorite part of physics! Everything made so much sense and everything was connected.
I always wanted to learn use of techniques of minimising resistive eddy current while I learnt this topic in my 12th grade physics...finally saw it thanks😂
Kind of like how electrical transformers work, only backwards. They are layered to make sure the eddy currents go in the right direction, which improves efficiency.
I was in Dr. Dawson's E&M class, and he did actually explain this to us!
"I completely trust in science. AAAAAHHH!!!"
alternate title: steven merchant teaches you about magnets
this is one of the best shorts I have seen: educational, entertaining, amusing, and interesting. Well done!
Best explanation and representation of eddy current I've ever seen🥰🥰🥰🥰🥰
Physics teachers are the best teachers
Wow! This is one example why we still need certified science teachers in primary school
Except he posted non-magnetic when in the technical sense it's not holding a polarized charge like ferromagnetic materials. Aluminum is a paramagnetic material.
YOU GUYS ARE THE ONLY PEOPLE WHO CQN MAKE PHYSICS INSISTING!
Wow
i think you need someone who can make spelling interesting
@@rgxyz1233
Yo Guy's Were in more informed times. We shouldn't judge especially with the lack of sufficient evidence/data😕
beside I used to do the same because I thought that it looked cool and the reason for that was because my mom took me out of school taking what privilege I had and leading me to learn the hard way... like being dumped.
Please consider that we have no clue of the human behind the comment.
@@rgxyz1233
My bad.
I had to check and see if education is considered a privilege
Education was optional, certainly had its benefits, but it was a privilege. You either had to be born into a rich family, or work for it, but you could still live without it. Today, it is a constitutional right, but not necessarily a natural right. Think about the difference between the types of rights.
@@codyanderson7409 this is the biggest r/whoosh moment ive ever seen.
this to me looks like they typed the word with a typo and then autocorrect did its thing and changed the word entirely. my comment was purely a joke, wasnt meant to tell them "omg u have bad spelling go to school now"
60 second demonstration does better than the U.S. education system
Same energy as that physics teacher with the contagious enthusiasm
As a college student for these sorts of things, this makes a lot of sense.
“What do you mean ‘We can’t have kids’?”
“It’s a long story…”
That scream when he dropped it was genuine primal fear 😂
I actually really enjoyed this. Thank you!
This is why Magneto can manipulate any metal, not just iron.
. . . did you not watch the video ?. He can't manipulate it if it isn't moving. And he can't if the shape doesn't allow the Coulomb force to arise.
@@uncletiggermclaren7592 Magneto can create magnetic fields arbitrarily. He can make them move all he wants.
@@TonkarzOfSolSystem that is interesting. I suppose he could indeed induce currents in any conducting material if he had the ability to induce a time varying magnetic field
not real
@@uncletiggermclaren7592 A current is generated by a change in flux. This can either happen from the conductor moving, or the magnetic field moving.
This man put his children on the line to prove a point
bro explained whole eddy current topic in 30 seconds
That “AHHH” was magnificent
This is what they used to make a ‘hoverboard’ on the hacksmith. They recreated the back to the future hoverboard, but of course it only works when above a large sheet of non-magnetic metal. It’s really cool, you should find the video if you haven’t seen it.
link pls??
Would work on multiple surfaces with extremely high voltage. Unfortunately it would be very dangerous also. They should try this still
Two speed fan hubs on trucks work this way. That way, when the fan is off, there is still a little drag trying to turn the hub, but without a friction material needing to be used. Saves fan engagements, thus wear on the clutch
man put his family on risk for just science and us. give this man an award. 🤝🏻
Bro went from terrified to calm and chill
Man that is so awesome why have I never seen this demonstrated before I love this thank you for sharing
Meanwhile in a parallel universe his balls be like:
Why are we here, just to suffer!?
Gogo has been a big improvement
Interesting! Aluminum aircraft structure is checked for cracks with something called an eddy current test.
Every day, I wish my engineering education came from TAM with the way these professors are enthusiastic about the subjects being taught.