Several of you have pointed out that, at 3:08, my magnetic field doesn't include the return arrows that exist within the bar magnet shown at 2:52. I'm well aware of this. The animation glitched whenever I tried to include them and they weren't important for the point I was making. The video was _already_ a week late and it wasn't worth trying to get it to work when I could just leave a black space in the field instead.
@@dangriff12 From Wikipedia: "neodymium magnet (also known as NdFeB, NIB or Neo magnet), the most widely used[1] type of rare-earth magnet, is a permanent magnet made from an alloy of neodymium, iron and boron to form the Nd2Fe14B tetragonal crystalline structure." So neodymium magnets are not just neodymium, they are an alloy that forms a crystal that is magnetic.
I'm going to take the narcissistic crazy high road - If I didn't notice it it's not worth noticing. Now, back to normal - I really appreciate all your work. Thank you.
5 years of Engineering studies, 4 semesters to painfully understand these concepts and you did the job in 7 minutes ! Superb video and nice conclusion.
@hama prgasc I know Electromagnetism but my enthousiasm came from the way Nick explain them so briefly and straigth to the point. I am impressed you study Electromagnetism in high school. But in my memories, classical electromagnetism need prior a solid knowledge in calculus and I didn't find it so easy to understand at the time...
No man I am in just 12th and I understood these concepts very well the need is just learning your textbooks carefully . No doubt for peoples with no background of science this is the best channel ever 👍👍👍👍 and oh yeah this is my mom's gmail account ok
This video has done a better job concisely explaining magnetism in low-level detail than any other video on the subject that I have ever watched. You are seriously the most underrated science CZcamsr on this whole website!
You are, without a doubt, my top favourite CZcams video producer. Magnetism is my nemesis, but I've definitely learnt something new today. Thank you Capt Crazy!
Wow. Your “all magnets are electromagnets” explanation was absolutely stellar. I feel like when I got my best maths teacher to date after almost failing end of year exams, and then suddenly getting 90% tests, because the lady actually took the time to explain things.
Hello! I've always struggled with physics until a friend introduced me to your channel. I'm currently studying for the physics part of the medicine entry exam and you're the only reason why I'm managing to get more then 2-3 points at a time. Thank you so much, I love your content and please keep it up! You're amazing :)
Glad I could help!! 🤓 I used to teach university-level intro physics courses (in the U.S.) where quite a few students were preparing for the MCAT. It was part of my job to prepare them for the physics stuff.
6:21 You can also expose the material to a very powerful electromagnet to convince it to line up it's atomic domains. Fun fact, if you want to demagnetize a metal that was made into a magnet this way, just hit it really hard or expose it to rapidly alternating magnetic fields.
This guy never takes anything for granted. He always gets to the root of it and makes it practically relatable. Even when the concepts are hypothetical and mathematical, he discusses them while pointing to the relevance they hold to everyday reality.. Unlike in most schools where every lesson begins with an unquestionable assumption and ends with an irrefutable conclusion.
"yes, in a lifetime of millions of years, the last stage takes days" what I never see is a video, even a simple one, describing this timeline of the life of a star.... I hope you'll do one someday. Other channels... guided me here, but yet you seem like a friend from university explaining things at the pub, without saying lies or omitting things... GOOD WORK NICK!
Feynman got very angry when asked on magnetism , but did not think us mere mortals could grasp the electron's spin and so witheld his answer , yet the Asylum gave a nice though short answer which I hope can be amplified . Great video .
Interesting video, as always. I wonder why you didn’t mention something regarding magnetism that really blew my mind when I found out: the fact that magnetism can actually be regarded as a consequence of applying special relativity to a moving electrostatic charge.
Cant thank you enough for this Nick! I was a physics dunce at school... sitting at a hard bench sleeping on my elbows while a husk of a teacher tried to explain with no diagrams etc etc - I now rule the electromagnetic universe and all in a few easy to follow steps!!! Still in my PJs with hair standing on end... Now wearing the badge!!!
Wow I have a really tough week but tomorrow I don't have to learn a lot, so I thought it would be awsome to watch a great physics video, and than I've noticed that you and Space Time uploaded😍
Love your work so much! I go in to so many videos thinking I understand the underlying science but after seeing your video I realize how hazy it really was and your video made more of a clear picture.
Excellent :) I Really Enjoyed This Video ..... And The One Before This ...... And The One Before That ...... And The One Before Them ...... :D Short Version .... All Of Them :)
You are doing what my high school, college, degree teachers couldnt do. They just tell u to byheart the stuff(especially math) so that u can pass in the exams. Sir you have my Respect...
That was also a short video with density of info, ☺️excellently explained on the crucial points. A great short review of science on a topic. Greatly helpful and interesting thanks
You are my idol sir . Thanks from my heart concept is now crystal clear . I wanna change your title of this video that - " Who heck has disliked this video !"
Wish i could like more than once to support you! Please don´t ever stop making videos! You are better than all teachers I have had so far. Keep spreading the knowledge!
I remember watching Feynman explaining once, that the force we feel when trying to push opposite sides of two magnets together, is the same force that we feel when we try to push our finger through the table. But because of atom alignment we feel this force sooner in magnets. Is this accurate?
Technically, yes, the electric force (finger on the table) and the magnetic force are really just the same type of force: the "electromagnetic force." The problem I have with that explanation is that non-physicists don't think of those things as the same, so it can be a bit misleading without further explanation.
Hi from Italy! I really appreciate your sense of humor and the way you let us “crazies” to approach the unveiled secrets of science. Your channel is very “attractive”, in a permanent way. Can you give an explanation on how come when we “scratch” a magnet 🧲 onto an iron bar we can “transfer” to it magnetic properties? Sorry for my bad english.
Not really. Neutron doesn't have electric charge, but it generates a magnetic field. Magnetism is about the alignment of spin/magnetic moment in a current or in a particle...
Cameron McHenry Yes, but their electric charges cancel eachother out - just like magnetic moments of electron pairs on a single orbital. What matters, is the magnetic moment (spin) of neutron, as a whole particle and not the spins or electric charges of quarks within it. Besides electrons in an orbital don't create electric currents. Their momentums and locations are undetermined, until they are being measured, so it's not right to apply the Right Hand Rule or EM induction... And one more thing: magnetic fields in motion, create electric currents, just like electric currents produce magnetic fields. Both, electric and magnetic fields are equivalent in the EM induction - and it's wrong to say, that electric charge is the SOURCE of magnetism in matter The only valid understanding of EM, is to see the difference between electric charge and quantum spin - which are two, different properties of subatomic particles. Electric and magnetic fields don't interact with eachother in their static forms - what shows, that those forces are not just "two sides of one coin", but completely different aspects of matter. The only proper explanation of the source of magnetism, is to include the alignment of spins/magnetic moments of particles in a current or in atoms, which make a magnetic domain. Magnetic fields are all about alignment - just as on the quantum scale, so for the Universe at macroscales. In galactic magnetic fields, all star systems are more or less aligned. In stellar magnetic fields, planets are magnetically aligned with the central star(s). In a pernament magnet, all the magnetic domains are aligned. In a magnetic domain, all the atoms are magnetically aligned. AND SO in an electric current, all electrons are aligned perpendicullary to the electric moment - and this is why, currents of particles create magnetic fields... This way is MUCH more simple to understand and to connect it with the other forces... Electromagnetism (EM induction) is the result of moving fields: both, electric and magnetic ones.
After "hold onto your butts" we laughed so hard our sides ached (and the girlie's **ts went smickity-smack) so good thing you showed us Felix The Wonderful Cat.
You explain things in ways easy to understand and also go deeper in some ways than some other sources I've watched and read into why stuff is the way it is. Bravo.
Some months ago, I saw this video. Today, my 9yo nephew asked me "How do magnets work?", and thanks to remembering parts of your video I managed to explain the basic stuff with a piece of string (wire) and a bowl of tomatoes (Fe atoms). This has to count as some sort of success on your part as well! Keep up the great work :-)
I have never heard a physicist say anything but: “If we are to be honest with ourselves we don’t know what a magnet is.” You will also hear: “mathematically it has been proven that a permanent monopole magnet can and should exist, although one has never been found.”
Nick, I always get a charge out of your videos (pun intended), and if you take a pole (pun intended), all responses will be positive (again, pun intended). Thanks for keeping us crazies informed and entertained!
I'm still trying to rap my head around what the hell all those electrons are doing in my guitar amp... Not to mention AC and DC both running through the same wire at the same time. Sheesh... Mind bogglingly crazy! Great video!
@@ScienceAsylum KOO! You are a champ my friend! Sometimes it takes a quantum physicist to explain wire it's doing that, and watt the resistance to understand it is all about. Thanks again ohms, always a pleasure watching your videos. Can't get enough of your crazy stuff. ;)
But then what is this thing with motion that it is serving as a link between electricity and magnetism.....I mean why moving charges have magnetic properties......and also does relativity come into play, like does moving with charge effect my measurement of the strength of magnetism(my intuition is that it should not but kindly explain) Thanks for existing.
My understanding is that relativity has everything to do with why moving charges generate the magnetic force. Imagine two conducting wires lying parallel to each other. They are composed of positively charged protons in their nuclei and and equal number of negatively charged electrons surrounding the nuclei. As there are an equal number of electrons and protons in these wires there is no net electric charge and therefore no force between the wires. Now start a current in both wires moving in opposite directions. Imagine that you are an electron in one of the wires. From your “point of view” you are standing still as are all the electrons in your wire. If you look over to the flow of electrons in the other wire you see them moving, therefore, per relativity, the distances between these moving particles would be measured by you to be contracted in the direction of their motion. This makes the total negative electric charge in the neighboring wire appear to be denser and therefore you and all your fellow electrons in your wire would experience a repulsive electric force. The electrons in the other wire experience the same thing and the two wires are pushed apart. We call this force, a result of their relative motion, “magnetism” but it is still just the electrostatic force of particles with an electric charge. Note that you, as an electron, would also see the distance between the positively charged protons contract but since they are, from you viewpoint, contracting the same in both wires they contribute no net large scale effect. Now imagine the currents flowing in the same direction. Now the electrons in the other wire are traveling the same as you and therefore appear stationary and there is no contraction between them from your viewpoint and no “magnetic” force. On the other hand, the protons see the electrons in the opposite wire moving and therefore contracted with an accompanying “densification” of negative charge which causes them to be attracted. The two wires will now move towards each other. It was a revelation to me when I first learned that magnetism is a result of moving charges. There is an often told story in biographies about Einstein that when he was a small boy his father gave him a magnetic compass 🧭 and that he was utterly fascinated by the mysterious invisible force that could move something without being in direct physical contact and that he was determined to find an explanation. I think it is absolutely marvelous that although his primary goal in developing special relativity was not to explain magnetism it nonetheless happened to fulfill his childhood dream by also solving that riddle.
I accidentally pressed the back button just right before the "... and until next time, remember, it's okay to be a little crazy". I couldn't stand living on like this, so, well, here I am. Great video!
My favorite magnet story involves a coworker from Jamaica and an electro magnet. We finished a roofing job and I borrowed an electro magnet from a friend to pick up nails. My coworker had no idea what it was. So I told him to hold out his hand, and I opened the circuit and the nails dropped into his hand. I will never forget the look on his face.
What is Magnetism?.....Nobody knows. What is Gravity?.......Nobody knows. What is Energy?.......Nobody knows. What is Matter?.......Nobody knows. What is Reality?.......Nobody knows. We are not even close enough to act smug. Thank you for these videos and also for not portraying a "know it all" like some do.
I think this video is the answer we are looking for when when someone asks "how do magnets work". Most answers are too vague this video has just the right amount of detail to not leave anything to "magic" but not so much that it turns into another topic altogether.
"Sort of." Spin is weird. It shows up as an angular momentum, and in normal situations we typically define (angular) momentum as the (angular) velocity multiplied by the mass. Yet the spin is neither generated by (real) movement nor is it related to the mass of the particles -- an electron and its cousin the tau particle have exactly the same spin even though the tau is like 3000x more massive. Nobody knows how the hell that works -- spin is one gigantic mystery in general -- but its the way the universe works. We can measure it with insane accuracy and even use it in our devices, but we're totally stumped in terms of actually understanding the "why" questions.
You don’t have it quite right. It’s not the movement of charges. It’s more accurate to say it’s due to the momentum of the charges (electrons). The property of spin is not really movement, but it is momentum.
@@cjheaford That's exactly my point. It registers as an angular momentum, but our (normal) definition of angular momentum is based on movement and rotation -- two things that spin isn't, and mass -- which spin isn't tied to. That is, we have absolutely no intuitive / macroscopic way of relating to spin. Surre we can measure it. We know what units it shows up as in the equations. We just have absolutely no idea _why_ it has those units.
The other 2 commenters have it right but would just like to add in, it is not a charge such as electric charge to power something. You can not hook up a wire to each end like a battery. But like a battery when it gets over heated you can also kill the angular momentum by heat. This creates a random structure to the atoms instead of a uniform direction. Thus allowing the magnet to lose its "charge".
| V=IR, V is directly proportional to i. And, I=Q/T V directly proportional to Q But,from V =W/Q V =1/Q >>>>> So, V is inversely proportional to charge Q. it is has some contradiction. _ IN potential due to a point charge Derivation V proportional To Q. And in capacitance Q=CV .Same as above proportionality. I don't understand why V=1/Q.
At least part of your problem is equating all that Q's to each other. They're not all the same. Remember, during an interaction, there are _two_ charges: one affecting the field and one affected by the field.
Nick, your videos are beyond expression. I'm a huge fan of your work and thoroughly appreciate all the effort you put into each clip. Keep it going man!
I've a question for you. I"m working as an electrician in a car workshop, and for as long as I remember, I magnetized my screwdrivers and other tools by wrapping a copper wire around them, and shorting the wires on a car battery. It doesn't actually short, because the winding increases the resistance enough to prevent what they call "explosive decomposition" but what I want to know, is what actually happens on the quantum scale of this little experiment I've been doing.
The current in the wire generates a magnetic field (1:14) that you use to line up the magnetic domains (5:58) in the steel. Basically, you're using an electromagnet to create a permanent magnet, which is exactly how permanent magnets are manufactured (just using much stronger electromagnets).
Magnets rule the world! And those made of rare earth elements are truly amazing. It's how Tesla can make a monster motor with the power of a moderate gas engine for well under $1000. Or those micro motors inside the cell phone for the vibration option. The magnets used in my home speakers for the woofers are so powerful, if two stuck together, one needs a crowbar to separate them. Unreal...GFB if your hand got in between them...
we all had toy magnets and a compass when we were kids and found them fascinating. i worked at a power company for 40 yrs with power lines and transformers and still find electricity and magnetism interesting. we have in harvard, massachusetts a place called magnetic hill where you can back up your car uphill in neutral or at least it appears that you can.
For anybody interested the way a strong neodymium magnets is form goes as such. The neodymium metal is heated and a very strong electromagnetic is next to it in the correct orientation and then the neodymium is quickly cooled and the released from the electromagnetic force. This is done a few times to strengthen the orientation of the new magnet.
I'm so facinated by eletromagnetism, eletrical engeneering and stuff! Lately i'm getting used to quantum-eletrodynamics, could you do a video about it? i would love it!
I love the crazy left to right, to left, back to right again location changes occurring at every cutscene. It is as if someone rapidly turned on and off an electromagnet flippantly.
I still can't believe magnets are real and i'm 38. the strength of old hard drive magnets just blows my my mind and has split my skin open once or twice!
Several of you have pointed out that, at 3:08, my magnetic field doesn't include the return arrows that exist within the bar magnet shown at 2:52. I'm well aware of this. The animation glitched whenever I tried to include them and they weren't important for the point I was making. The video was _already_ a week late and it wasn't worth trying to get it to work when I could just leave a black space in the field instead.
What about neodymium magnets? Aren't they magnetic at room temperature?
@@dangriff12 From Wikipedia: "neodymium magnet (also known as NdFeB, NIB or Neo magnet), the most widely used[1] type of rare-earth magnet, is a permanent magnet made from an alloy of neodymium, iron and boron to form the Nd2Fe14B tetragonal crystalline structure."
So neodymium magnets are not just neodymium, they are an alloy that forms a crystal that is magnetic.
I'm going to take the narcissistic crazy high road - If I didn't notice it it's not worth noticing. Now, back to normal - I really appreciate all your work. Thank you.
The sense of humor is British . Great. And the scientific content is presented verrrryyy good.
Animation hates quantum mechanics,lol. XD
5 years of Engineering studies, 4 semesters to painfully understand these concepts and you did the job in 7 minutes ! Superb video and nice conclusion.
@hama prgasc I know Electromagnetism but my enthousiasm came from the way Nick explain them so briefly and straigth to the point. I am impressed you study Electromagnetism in high school. But in my memories, classical electromagnetism need prior a solid knowledge in calculus and I didn't find it so easy to understand at the time...
No man I am in just 12th and I understood these concepts very well the need is just learning your textbooks carefully . No doubt for peoples with no background of science this is the best channel ever 👍👍👍👍 and oh yeah this is my mom's gmail account ok
Magnetism was always a weird one for me. I never had a pretty clear understanding until recently and this video just puts it together so nice!
@hama prgasc lol..we study these in kindergarten...
@@unemployed756 Are you serious, I always thought this was common knowledge that everyone is born with.
Nick your videos are just so good...
Thanks Jade! What brings you to my magnet video?
One of my patrons asked how magnets worked and I linked them over here n_n
Cool thanks!
The best there is!
@@DimljenaRiba Yes, after PBS Space-time.
"Don't ever jump to conclusions in Quantum Mechanics..." stay in superposition.
wohw 😮
You have to stay in your energy level. Otherwise, you might jump to some pretty tall conclusions.
Quality is outstanding Nick. Partially glad you made us wait for it. You made Electrodynamics
wait for it
Attractive.
This joke is the best one I've heard in weeks dude xD
Slow clap.....👏🏿👏🏿 beautiful
But it truly is attractive, everyone else make it look unattractive and boring
This video has done a better job concisely explaining magnetism in low-level detail than any other video on the subject that I have ever watched. You are seriously the most underrated science CZcamsr on this whole website!
You are, without a doubt, my top favourite CZcams video producer. Magnetism is my nemesis, but I've definitely learnt something new today. Thank you Capt Crazy!
Wow. Your “all magnets are electromagnets” explanation was absolutely stellar. I feel like when I got my best maths teacher to date after almost failing end of year exams, and then suddenly getting 90% tests, because the lady actually took the time to explain things.
Love the "we have no idea" answer at the end. It gets not enough credit
Like an electromagnet changing directions on its own. Hard to pinpoint.
Wow, clicked this first before PBS Spacetime when I had a clear choice, lol
Yeah lol I'm watching Space-time's video next.
I share this preference.
same
The PBS spacetime guy is too boring and tries to sound toooooo fancy...
I love both, the more science I can get in my diet the happier I am. Yummy yummy science!
"Quantum mechanics. Hold on to your butts" The answer to every question ever!
But did you hold it?
Well...they are the "basic" of everything that exist so...yeah :D
Hello! I've always struggled with physics until a friend introduced me to your channel. I'm currently studying for the physics part of the medicine entry exam and you're the only reason why I'm managing to get more then 2-3 points at a time. Thank you so much, I love your content and please keep it up! You're amazing :)
Glad I could help!! 🤓 I used to teach university-level intro physics courses (in the U.S.) where quite a few students were preparing for the MCAT. It was part of my job to prepare them for the physics stuff.
6:21
You can also expose the material to a very powerful electromagnet to convince it to line up it's atomic domains. Fun fact, if you want to demagnetize a metal that was made into a magnet this way, just hit it really hard or expose it to rapidly alternating magnetic fields.
inb4 cross link to the marble machine X's demagnetizer vid ;D You know, come to think of it, I'll link it: czcams.com/video/R50B5XaWUPM/video.html
This guy never takes anything for granted. He always gets to the root of it and makes it practically relatable. Even when the concepts are hypothetical and mathematical, he discusses them while pointing to the relevance they hold to everyday reality.. Unlike in most schools where every lesson begins with an unquestionable assumption and ends with an irrefutable conclusion.
"yes, in a lifetime of millions of years, the last stage takes days" what I never see is a video, even a simple one, describing this timeline of the life of a star.... I hope you'll do one someday. Other channels... guided me here, but yet you seem like a friend from university explaining things at the pub, without saying lies or omitting things... GOOD WORK NICK!
Feynman got very angry when asked on magnetism , but did not think us mere mortals could grasp the electron's spin and so witheld his answer , yet the Asylum gave a nice though short answer which I hope can be amplified . Great video .
Great video, Nick! You make science ahem... Attractive! 😀
Ha!
@@ScienceAsylum it's your magnetic personality 😎
Well played sir
but constantly bashing mathematicians is not a sexy look! :DDDD
@@MsSonali1980 Yes it is. String "Theory" is but one good reason why. HA! lulzy
Your video brought home a concept that several semesters into engineering school didn't. Thank you!
You're very welcome! 🤓
Interesting video, as always. I wonder why you didn’t mention something regarding magnetism that really blew my mind when I found out: the fact that magnetism can actually be regarded as a consequence of applying special relativity to a moving electrostatic charge.
Cant thank you enough for this Nick! I was a physics dunce at school... sitting at a hard bench sleeping on my elbows while a husk of a teacher tried to explain with no diagrams etc etc - I now rule the electromagnetic universe and all in a few easy to follow steps!!! Still in my PJs with hair standing on end... Now wearing the badge!!!
Wow I have a really tough week but tomorrow I don't have to learn a lot, so I thought it would be awsome to watch a great physics video, and than I've noticed that you and Space Time uploaded😍
Thank you, Nerd Clone, for insisting on the quantum explanation 😄
"The crazies are gonna like it." LOL
Love your work so much! I go in to so many videos thinking I understand the underlying science but after seeing your video I realize how hazy it really was and your video made more of a clear picture.
0:38 Nice! You fixed it :)
Yep! I appreciate when viewers correct me (even if I'm disappointed in myself for not noticing).
its terrifying for us too 😂 for some time
Excellent :) I Really Enjoyed This Video ..... And The One Before This ...... And The One Before That ...... And The One Before Them ...... :D Short Version .... All Of Them :)
The questions I constantly ask get answered here and thats amazing.
If you stare at Nick's nose without blinking @ 4:48 for 6 seconds, his face appears in the atom!
Woaaaw... :)
Wow. How did you figure this one out? XD
You are doing what my high school, college, degree teachers couldnt do. They just tell u to byheart the stuff(especially math) so that u can pass in the exams. Sir you have my Respect...
That was also a short video with density of info, ☺️excellently explained on the crucial points. A great short review of science on a topic. Greatly helpful and interesting thanks
You are my idol sir . Thanks from my heart concept is now crystal clear . I wanna change your title of this video that - " Who heck has disliked this video !"
You deserve WAYYY more recognition.
Another playful presentation of an interesting and somewhat perplexing subject. Thanks
I have waited for a video like this on magnets since eternity
Wish i could like more than once to support you! Please don´t ever stop making videos! You are better than all teachers I have had so far. Keep spreading the knowledge!
I don't plan on stopping.
I remember watching Feynman explaining once, that the force we feel when trying to push opposite sides of two magnets together, is the same force that we feel when we try to push our finger through the table. But because of atom alignment we feel this force sooner in magnets. Is this accurate?
Technically, yes, the electric force (finger on the table) and the magnetic force are really just the same type of force: the "electromagnetic force." The problem I have with that explanation is that non-physicists don't think of those things as the same, so it can be a bit misleading without further explanation.
Hi from Italy! I really appreciate your sense of humor and the way you let us “crazies” to approach the unveiled secrets of science. Your channel is very “attractive”, in a permanent way. Can you give an explanation on how come when we “scratch” a magnet 🧲 onto an iron bar we can “transfer” to it magnetic properties? Sorry for my bad english.
Almost everything in this video is covered in one chapter(magnetism) of class 12th physics book in INDIA.
Nick, you really help us a lot.
Thank you. This broke a barrier for me in understanding.
You're welcome :-)
Jesus, finally a good video explaining magnetism, great work!
Really... You dont know how long i ve struggled to understand this. But this actually finally makes so much more sense, then i ve told anywhere.
Not really. Neutron doesn't have electric charge, but it generates a magnetic field. Magnetism is about the alignment of spin/magnetic moment in a current or in a particle...
Cameron McHenry Yes, but their electric charges cancel eachother out - just like magnetic moments of electron pairs on a single orbital. What matters, is the magnetic moment (spin) of neutron, as a whole particle and not the spins or electric charges of quarks within it.
Besides electrons in an orbital don't create electric currents. Their momentums and locations are undetermined, until they are being measured, so it's not right to apply the Right Hand Rule or EM induction...
And one more thing: magnetic fields in motion, create electric currents, just like electric currents produce magnetic fields. Both, electric and magnetic fields are equivalent in the EM induction - and it's wrong to say, that electric charge is the SOURCE of magnetism in matter
The only valid understanding of EM, is to see the difference between electric charge and quantum spin - which are two, different properties of subatomic particles. Electric and magnetic fields don't interact with eachother in their static forms - what shows, that those forces are not just "two sides of one coin", but completely different aspects of matter.
The only proper explanation of the source of magnetism, is to include the alignment of spins/magnetic moments of particles in a current or in atoms, which make a magnetic domain. Magnetic fields are all about alignment - just as on the quantum scale, so for the Universe at macroscales. In galactic magnetic fields, all star systems are more or less aligned. In stellar magnetic fields, planets are magnetically aligned with the central star(s). In a pernament magnet, all the magnetic domains are aligned. In a magnetic domain, all the atoms are magnetically aligned. AND SO in an electric current, all electrons are aligned perpendicullary to the electric moment - and this is why, currents of particles create magnetic fields...
This way is MUCH more simple to understand and to connect it with the other forces... Electromagnetism (EM induction) is the result of moving fields: both, electric and magnetic ones.
You are making CZcams a better place
After "hold onto your butts" we laughed so hard our sides ached (and the girlie's **ts went smickity-smack) so good thing you showed us Felix The Wonderful Cat.
Two very commonplace items: incandescent lightbulbs and magnets are macroscopic manifestations of quantum mechanics.
That's pretty crazy!
I should add metal and semiconductor junctions to the list.
Every time I see weird shit done with magnets my brain goes "ah, reality in no way works as you intuitively perceive it".
You explain things in ways easy to understand and also go deeper in some ways than some other sources I've watched and read into why stuff is the way it is. Bravo.
Thanks :-)
Some months ago, I saw this video. Today, my 9yo nephew asked me "How do magnets work?", and thanks to remembering parts of your video I managed to explain the basic stuff with a piece of string (wire) and a bowl of tomatoes (Fe atoms). This has to count as some sort of success on your part as well! Keep up the great work :-)
That's wonderful!
I'm researching the source of Earth's magnetism. This was very helpful. Thank you.
Glad it was helpful! 🤓
finally, i learned what makes magnets work. wondered this my entire life and didnt get the answer until now
I have never heard a physicist say anything but: “If we are to be honest with ourselves we don’t know what a magnet is.” You will also hear: “mathematically it has been proven that a permanent monopole magnet can and should exist, although one has never been found.”
Thanks for the fun ride!!
Fred
You're welcome :-)
Nerd clone should be in every video! "are you gonna make me go there? Yes, the Crazies will love it".......... Yes we loved it! Great video!!!
Nerd Clone is a fan favorite.
Nick, I always get a charge out of your videos (pun intended), and if you take a pole (pun intended), all responses will be positive (again, pun intended). Thanks for keeping us crazies informed and entertained!
Finally an intuitive reference without the need for math.
I think this is the first video i've watched from "The Science Asylum" and understood the majority of the concept.
I'm still trying to rap my head around what the hell all those electrons are doing in my guitar amp... Not to mention AC and DC both running through the same wire at the same time. Sheesh... Mind bogglingly crazy! Great video!
I will definitely be getting into that soon. Electron "flow" is really interesting.
@@ScienceAsylum KOO! You are a champ my friend! Sometimes it takes a quantum physicist to explain wire it's doing that, and watt the resistance to understand it is all about. Thanks again ohms, always a pleasure watching your videos. Can't get enough of your crazy stuff. ;)
But then what is this thing with motion that it is serving as a link between electricity and magnetism.....I mean why moving charges have magnetic properties......and also does relativity come into play, like does moving with charge effect my measurement of the strength of magnetism(my intuition is that it should not but kindly explain)
Thanks for existing.
try looking up the episode on vertasium on electromagnets.
My understanding is that relativity has everything to do with why moving charges generate the magnetic force. Imagine two conducting wires lying parallel to each other. They are composed of positively charged protons in their nuclei and and equal number of negatively charged electrons surrounding the nuclei. As there are an equal number of electrons and protons in these wires there is no net electric charge and therefore no force between the wires. Now start a current in both wires moving in opposite directions. Imagine that you are an electron in one of the wires. From your “point of view” you are standing still as are all the electrons in your wire. If you look over to the flow of electrons in the other wire you see them moving, therefore, per relativity, the distances between these moving particles would be measured by you to be contracted in the direction of their motion. This makes the total negative electric charge in the neighboring wire appear to be denser and therefore you and all your fellow electrons in your wire would experience a repulsive electric force. The electrons in the other wire experience the same thing and the two wires are pushed apart. We call this force, a result of their relative motion, “magnetism” but it is still just the electrostatic force of particles with an electric charge. Note that you, as an electron, would also see the distance between the positively charged protons contract but since they are, from you viewpoint, contracting the same in both wires they contribute no net large scale effect. Now imagine the currents flowing in the same direction. Now the electrons in the other wire are traveling the same as you and therefore appear stationary and there is no contraction between them from your viewpoint and no “magnetic” force. On the other hand, the protons see the electrons in the opposite wire moving and therefore contracted with an accompanying “densification” of negative charge which causes them to be attracted. The two wires will now move towards each other. It was a revelation to me when I first learned that magnetism is a result of moving charges.
There is an often told story in biographies about Einstein that when he was a small boy his father gave him a magnetic compass 🧭 and that he was utterly fascinated by the mysterious invisible force that could move something without being in direct physical contact and that he was determined to find an explanation. I think it is absolutely marvelous that although his primary goal in developing special relativity was not to explain magnetism it nonetheless happened to fulfill his childhood dream by also solving that riddle.
Oh yes :- "On the electrodynamics of Moving bodies".
I don't usually do this but watching bunch of your videos has literally helped me a lot to grasp concepts. Thank you sincerely ❤
That's great! Happy to help 🤓
My favorite line: “Laplace was a BAMF.”
I did my share of learning Laplace transforms in college to completely agree. 😊
They are fuckin magic
Wonderful summary of how a magnet works! From the innermost up to the human scale. Thank you.
Magnets are so coolest thing ever. It feels like magic.
To people who think the Earth is flat it *is* magic
I accidentally pressed the back button just right before the "... and until next time, remember, it's okay to be a little crazy".
I couldn't stand living on like this, so, well, here I am. Great video!
I'm calling it in a maximum of 2 years this channel will have 3 mln subscribers
My favorite magnet story involves a coworker from Jamaica and an electro magnet. We finished a roofing job and I borrowed an electro magnet from a friend to pick up nails. My coworker had no idea what it was. So I told him to hold out his hand, and I opened the circuit and the nails dropped into his hand. I will never forget the look on his face.
Awsome nick! You made leran what seems to me as a mountain .... and thats the stuff about magnets.
What is Magnetism?.....Nobody knows.
What is Gravity?.......Nobody knows.
What is Energy?.......Nobody knows.
What is Matter?.......Nobody knows.
What is Reality?.......Nobody knows.
We are not even close enough to act smug.
Thank you for these videos and also for not portraying a "know it all" like some do.
This is next level
really like your videos
finally understood electromagnetic induction briefly
We'll hopefully be covering induction in more detail later on.
You are that type of meme which everyone loves.
I think this video is the answer we are looking for when when someone asks "how do magnets work". Most answers are too vague this video has just the right amount of detail to not leave anything to "magic" but not so much that it turns into another topic altogether.
Laplace is cool.
I was searching for this. Love all of your videos.
Someone should link this video to Insane Clown Posse. They have been asking this question for years.
you have very deep understanding to very complicated notions.. why don't you work in particle accelerator or any other fancy place??
Biggest Reason: I'm not interested in experimental/practical physics. I'm pure theoretical.
Wow! Permanent magnets and electromagnets both exist s due to movement of charges
"Sort of." Spin is weird. It shows up as an angular momentum, and in normal situations we typically define (angular) momentum as the (angular) velocity multiplied by the mass. Yet the spin is neither generated by (real) movement nor is it related to the mass of the particles -- an electron and its cousin the tau particle have exactly the same spin even though the tau is like 3000x more massive.
Nobody knows how the hell that works -- spin is one gigantic mystery in general -- but its the way the universe works. We can measure it with insane accuracy and even use it in our devices, but we're totally stumped in terms of actually understanding the "why" questions.
You don’t have it quite right. It’s not the movement of charges. It’s more accurate to say it’s due to the momentum of the charges (electrons).
The property of spin is not really movement, but it is momentum.
@@cjheaford That's exactly my point. It registers as an angular momentum, but our (normal) definition of angular momentum is based on movement and rotation -- two things that spin isn't, and mass -- which spin isn't tied to.
That is, we have absolutely no intuitive / macroscopic way of relating to spin. Surre we can measure it. We know what units it shows up as in the equations. We just have absolutely no idea _why_ it has those units.
altrag
I know altrag. I was addressing the original poster, not you. You had it spot-on.
The other 2 commenters have it right but would just like to add in, it is not a charge such as electric charge to power something. You can not hook up a wire to each end like a battery. But like a battery when it gets over heated you can also kill the angular momentum by heat. This creates a random structure to the atoms instead of a uniform direction. Thus allowing the magnet to lose its "charge".
I'd now like to see the mechanism for the attractive force of a magnet comes from; HOW does a magnet attract other magnetic materials to it?
F***ing magnets - how do they work?
for free it seems
TheSamsanca
Those were lyrics to perhaps one of the lamest songs of our generation.
czcams.com/video/8GyVx28R9-s/video.html
@@thedebatehitman
Didn't know that song. Btw, why is the link youtu.be and not youtube ?
@@thedebatehitman, why did I click that link? It's like magic, bruh, you say something sucks and people want to see anyways.
TheSamsanca, it's just a trick CZcams uses to shorten links. All the video links I put in my video descriptions are youtu.be
So glad this channel came up during a search. Awesome. Sorry I'm late...lol.
| V=IR, V is directly proportional to i.
And, I=Q/T
V directly proportional to Q But,from V =W/Q
V =1/Q >>>>> So, V is inversely proportional to charge Q. it is has some contradiction.
_ IN potential due to a point charge Derivation V proportional To Q. And in capacitance Q=CV .Same as above proportionality. I don't understand why V=1/Q.
At least part of your problem is equating all that Q's to each other. They're not all the same. Remember, during an interaction, there are _two_ charges: one affecting the field and one affected by the field.
Amazing video! I love it, you really explain it in a way pretty complete and also simple, thank you
*Sees and clicks new S.A. video
*Clicks Like button
*Proceeds to watch video...
Such a genius & humorous Professor 👏.
The electromagnetic force is one of the forces that remind us that we don't need a creator to describe the universe.
Nick, your videos are beyond expression. I'm a huge fan of your work and thoroughly appreciate all the effort you put into each clip. Keep it going man!
Thanks!
I don’t even watch these now before I click like. I know anything from the asylum will be good!
This lecture is a masterpiece. Thanks for unifying these concepts.
Mathematics is sick
I've a question for you. I"m working as an electrician in a car workshop, and for as long as I remember, I magnetized my screwdrivers and other tools by wrapping a copper wire around them, and shorting the wires on a car battery. It doesn't actually short, because the winding increases the resistance enough to prevent what they call "explosive decomposition" but what I want to know, is what actually happens on the quantum scale of this little experiment I've been doing.
The current in the wire generates a magnetic field (1:14) that you use to line up the magnetic domains (5:58) in the steel. Basically, you're using an electromagnet to create a permanent magnet, which is exactly how permanent magnets are manufactured (just using much stronger electromagnets).
The first time I opened my mind, it was because of magnets.
Good video nick this time you also added some quantum mechenical explanation great work👏👏
haha..visual approximation........you are funny.
Magnets are a fascinating subject. I've always been drawn to them.
I have never fully understood magnetic fields, until now!
I love the way he presents and make to comprehend easy.
Magnets rule the world! And those made of rare earth elements are truly amazing. It's how Tesla can make a monster motor with the power of a moderate gas engine for well under $1000. Or those micro motors inside the cell phone for the vibration option. The magnets used in my home speakers for the woofers are so powerful, if two stuck together, one needs a crowbar to separate them. Unreal...GFB if your hand got in between them...
we all had toy magnets and a compass when we were kids and found them fascinating. i worked at a power company for 40 yrs with power lines and transformers and still find electricity and magnetism interesting. we have in harvard, massachusetts a place called magnetic hill where you can back up your car uphill in neutral or at least it appears that you can.
For anybody interested the way a strong neodymium magnets is form goes as such. The neodymium metal is heated and a very strong electromagnetic is next to it in the correct orientation and then the neodymium is quickly cooled and the released from the electromagnetic force. This is done a few times to strengthen the orientation of the new magnet.
I'm so facinated by eletromagnetism, eletrical engeneering and stuff! Lately i'm getting used to quantum-eletrodynamics, could you do a video about it? i would love it!
Hopefully, I'll do a proper series on quantum mechanics one of these days.
@@ScienceAsylum nice! thanks for responding
Another outstanding video! I very much like this CZcams channel!
When I saw Felix Savart I literally flooded the desk... thank you! 🤣🤣🤣
😂
I love the crazy left to right, to left, back to right again location changes occurring at every cutscene. It is as if someone rapidly turned on and off an electromagnet flippantly.
I still can't believe magnets are real and i'm 38. the strength of old hard drive magnets just blows my my mind and has split my skin open once or twice!