The Physics of Magnetic Monopoles - with Felix Flicker
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- čas přidán 19. 05. 2020
- In physics, why is it that things can have an electric charge, but not a magnetic charge? Can you get a magnet with only a north or south pole?
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Felix Flicker explores the magnetic monopoles theoretically predicted to exist in ‘spin ices’ and how this could lead to fundamental advances in electronics with the possibility of magnetic currents that overcome physical limitations faced by electrical currents today.
Watch the Q&A: • Q&A: The Physics of Ma...
Felix Flicker is a theoretical physicist working at Oxford University. He holds the Astor Junior Research Fellowship at New College. His interests lie in the application of geometry and topology to condensed matter systems.
This lecture was filmed in the Ri on 17 February 2020.
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Second time lucky! We have thwarted the audio fixing gremlins and got a working copy of all sound files this time. (When we previously tried uploading this video, it helpfully decided to get rid of all the 'noisy bits'.)
I did wonder where the noise was. You get an extra view now. Are you sure that the noise with the device the right way round? 1st is low frequency, 2nd is high frequency, yet the talk suggests that the first is without the device inserted, or the white noise.
Much improved! Thank you very much! Was there supposed to be a sound at 38:59?
It's almost fixed. There are still a few issues remaining.
We need to send additional biscuits to bribe the video elves!
Thank you for that
I’m just
Always nice to see a physicist with just the right amount of showmanship to remind everyone that science ought to be fun.
It doesn't take much effort to make teaching not the most boring thing imaginable, but a lot of people still miss this
Well, not so much "ought to be", it actually really is!!! There is almost nothing better than learning something new! If it changes one's perception then that part is awesome. I've been wrong about things for years at a time and then someone says three (e.g.) words that can make everything suddenly clear!
If you do not conduct science for the fun and love of science it is not really science. Science is an art form. The fact that it brings humans further is secondary.
To try to conduct science with predetermined expectations and/or wishful thinking tend to lead to so called biases. They are flaws in the way we conduct research. In this case it is the fact that we are asking "how can reality be what we wanted to be" instead of accepting reality for what it is.
Reminds me of Richard Feynman
Felix teaches Quantum mechanics at Cardiff university and I have to say his lectures are just as entertaining as this talk
I must admit I was a little sceptic when I saw the title but this was an absolute pleasure to watch. Interesting subject and brilliantly presented.
I sure hope you fixed your sceptic issue!
Ah yes, the sounds of magnetic -dipoles flipping- monopoles moving through a magnetic material.
still watching... yeah I clicked specifically cause of my skepticism of the title, I've always been told mono-pole magnet is impossible, as you could cut a magnet down its polar equator, and it would simply make two new smaller N/S polar magnets of the two pieces, and technically infinitely repeatable and naturally inherent property of magnets.
curious to see whats up here. :/
Yes the title was misleading indeed
I thought the title was clickbait, and ended up enthralled.
This is obviously a time lord talking about magic magnets.
He looks like Michael Faraday with longer hair!
Douglas Strother thinking about time lords and magic magnets - are you certain he’s not Faraday?
"Ah, the Royal Institute. Just as I remember."
*Indubitably*
thats what i was thinking, hes got a suit and a bowtie to match the 11th
Truly enjoyed this lecture. I am not a physicist but am interested in many subjects. Often, due to my education taking me far from the theoretical realm, I am left behind by in depth discussions in theoretical physics. This lecture was well done, in preventing this from happening, as the speaker was adept at using real world analogies that made an extremely complex subject accessible to a non-physicist, like myself! Hats off to the speaker and all his colleagues who contributed to this wonderful lecture!
I am alive and well :)
Felix, this talk was magic!* And it was amazing to see Faraday's workbook! He's one of my heroes.
(*and by magic I mean beautiful, understandable, exciting physics)
ahaha we are glad to see you well and alive Jeff. Thanks for the amazing demo and the cool contraption.
Yes, very cool device, thank you!
I showed my son how a magnet moves slowly through a copper tube and he thought that was cool. We spent a whopping 10 dollars at the hardware store for that
wow
Thank you for your contribution to this fantastic lecture, Jeff.
may i ask why the number of winding varied from coil to coil?
"An excellent team, plus myself"
The moment I smashed that like button. 👍
Indeed
I too got warm & fuzzy over this most humble gesture.
This was a complicated subject extremely well presented! Also, I do very much appreciate Dr. Flicker eagerly giving credit to his team. Very classy move. Thank you for making this available. I enjoyed every bit of it.
As we can see in this video modern science is a big scam.
A fantastic lecture. There's certainly an art to delivering a lecture - especially to those of us outside the field of study - and Dr. Flicker nailed it with humor, without ever giving a feel of dumbing it down. It's also nice to see how gracious he was to each and every person who contributed to the presentation. Thank, R.I., for presenting this.
Timestamps:
9:10 9:26 - the paradox of loops
10:26 - Electrostatics --> Magnetostatics - asymmetricity in otherwise perfectly analogous behaviour (appeal for search of MMPoles)
12:49 - behavior of MMP wrt that of MDP
13:20 - appeals for existence of MMP
14:26 - (not mentioned, but i think it can also be related:) Quantisation of Magnetic Charge
16:01 - Basis of explaining quantisation of electric charges (appeal for search of MMPoles)
17:20 - some glossary
21:04 - particle-antiparticle - fractionalisation
22:01 - chess board analogy
28:22 - Energy in vacuum space
33:06 - Spin Ice name reason
38:20 - Noise (thanks a lot for explaining the types, and nomenclature with analogy soooo concisely)
40:46 - Paramagnets and dependence on Temperature
46:01 - electric current --> magnetic current
47:11 - electronics --> spintronics
47:20 - Moore's law
48:56 - logic gates
(The list was made for the list of topics touched in the video initially, but later i extended it to function like TStamp as well)
Sooo exciting It touched and related soo many topics, and that too with sufficient ELI-15 details. I just finished my chapter on Magnetism in High School, so got interested in this vid.
Thanks a lot!
Much appreciated! This comment needs more love!
thank you
excellent work Pal
Wish list: A lifetime pass to RI lectures, thank you very much :-D
You've got it! We film almost every lecture and they all come to CZcams so just being subscribed, you'll have a steady stream of lectures coming your way. They are usually weekly, but we've had to slow down a little since most of the team has been furloughed during the pandemic. We're hoping to get back to our former strength soon!
@@TheRoyalInstitution have been subscribed, can confirm
@Heads Mess lol don't hold your breath
Excellent lecture beautifully presented. I never fail to get a thrill when it's pointed out, with picture, that Faraday (and all those other luminaries) lectured from the very same desk. How thrilled Faraday will be to see today's lecture after we invent the monopole time machine and bring him forward - but that's a lecture for a future time.
Been subscribed for a long time. One of me favorite channels.
CZcams algorithm is getting better at suggesting articles.
You earned my subscription :)
Tweed looking suit: ✅
Bow tie: ✅
British accent: ✅
Must be valid
For real. I clicked because of that.
What a wonderful speaker. Loved the talk and learned so much.
@@stevenlonien7857 how tf is that related to the original comment
I like how he clearly knows what he is talking about and explain things with no logic gap
Is a tripole possible?
He doesn’t yet just a hypothesis, the problem most the time is there stuck in there discrete minds with “laws” that won’t support what he wants in a closed system, they didn’t know about quarks tau’s muons or any quantum physics, no anti-neutrinos ect.. also there’s no particle there’s a Wave , vibration and physicists need to stop thinking in the macro. BTW if he’s worried about health he probably should go to HAARP lol.
Another lack of any relationship to the ether by the cult of bumping particles.
Never heard of this general subset of interconnected theories or experiments prior to this, interesting stuff! Sometimes I wonder if part of the reason I so often enjoy RI lectures is how refreshingly humble so many of the presenters are about their own achievements. Regardless, bravo to the presenter!
@patrick quinn ????????? Are you his lover? I don't recall him saying anything about being LGBTQ during the presentation. Perhaps you were daydreaming, and that is what you heard?
@patrick quinn What a weird thing to say. False representation in fact.
Fascinating content and Felix Flicker was outstanding. I think he had some apprehension about whether or not his audience was following him based on the number of questions he asked. He seemed so relieved every time they answered correctly. Cheers, John Noe
Yes, I was very impressed with the quality of his speaking, as well as his ability to explain. I have a degree in mathematics, so perhaps I'm a bit better equipped to understand the kinds of things he talks about, but I wanted to add that not once did I struggle to understand his explanations.
As we can see in this video modern science is a big scam.
left out one minor reason for being unable to separate the poles. To get a magnetic field you have to move an electron - but it doesn't have to be in a circle - just move it. and when you do you get a magnetic field that encircles the path the electron is taking.
and ther is a north/south alignment to that field generated. and you can't get one without the other.
Thank you for pointing this out, is a magnet with no flux a magnet? Quantum spin is 1 or 0, on or off, N or S
For electro - magnets
Electrons in an orbit assume spins one way or another, and if a pair of them occupied the same orbit they have opposite spins, creating magnatic neutrality.
@@Mr-hn2bp NOPE. without an imposed magnetic field they can be random.
@@Mr-hn2bp orbit in this context has no meaning.
That was freaking great! I’m impressed with his ability to deliver such a lecture with such clarity and articulation. And yeah, if he ever decides to leave physics, he’s hands-down the next Doctor Who.
Lol that's true
This is a brilliant talk, and so well articulated - thank you! First viewing I could not hear the white or pink etc noise. Then I went to my youtube history a bit later and the vid had disappeared! I see from your comment that these two things are in fact inter-related - phew! On second viewing now. Thanks once again.
Absolutely riveting lecture. It popped up as a random video and I started watching it wondering what in the heck does it mean to have a magnetic monopole. I am glad it did because the explanation was very simple and thought provoking. Favorite quote is from Faraday "What use is a new born baby?" I hope to see more about this baby's achievements in my life time. Thank you Felix Flicker PhD.
What a lovely man, he projects knowledge and humility in equal order. I loved his outfit - didn't he fit the part? A profoundly difficult physics concept was brought to earth as well as anything can to an informed but non-specialist audience. Not a single mathematical equation in the lecture, yet profoundly difficult mathematics must underly every bit of this work. Skating over the surface of the frozen lake of science, we were allowed to see the wide horizon, yet knowing the depth of understanding that must lie below to those who have taken the time to learn. .
Yep.
1:10 "that was my best joke, it only goes South from here."
Second time lucky! We have thwarted the audio fixing gremlins and got a working copy of all sound files this time. (When we previously tried uploading this video, it helpfully decided to get rid of all the 'noisy bits'.)
The greatest joke here-in is that Magnetism is being treated as a force... it is literally derivative of the electric field. really. The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative of the electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
@@govcorpwatch Exactly. Happy that I am not the only one having this understanding.
@Minghuan Mo It's so funny.... Many people ARGUE with the sound physics presented by the "Magnetism is just the electric field changing at the speed of light." and call me delusional for their own ignorances. This happens in many places in life... It's not cool any more. Thank you for being open and questioning rather than judgmental and harsh. You are a refreshing user/commenter that inspires hope rather than continued farce in humanity.
This guy could sell me a vacuum cleaner that works by making the rest of my house more dirty.
Reading most of the comments on here, people are so superficial. They base the content of the talk off of what he looks like in a tweed coat.
@@forknowledge6959 I actually think it's quite fitting. He looks like a physicist lol
@@urano4810 Do physicists dye their hair?
@@DAMORBEL well why not ?
I know I'd buy it.
I don't know why, but I love this guy.
I think it's his strange combination of courage, "nerdy-ness", and passion for discovering more about how the universe works to assist others - in this case, by teaching others & inspiring them to also see the world as he must see it: an ever-deepening mystery
Shockingly awesome talk, Flicker absolutely appears just keenly as "a colleague" of Faraday in the times of great discovery of the Royal Institution . . .
Audience: " "
Felix:"Impressive, I couldn't have worded it better myself!"
No idea great question ! I tried max volume and sounds like "cause there an old white" obviously someone with better hearing must post what she said please!
She said: "Claustrophobic oddities"
...
Yeah I have no idea.
I heard her say, "because there are more white," referring to the imbalance of charge leftover.
The beauty of doing research at CERN is you always get smashing results 😉
In thrust... they trust 😉
Once you've ioned out the difficulties.
Lol and lol
yes yes yes ... it does accelerate our knowledge.
@@worklion50 "it does accelerate our knowledge"
But only in circles . . . .
I knew it would be a thorny topic but was amazed by the clarity of the explanation. It takes an excellent communicator with rare intelligence to make such a clear story, with such clear illustrations.
And the humility. And the history- the engraving of Faraday standing at the same desk, in the same room! And the gentle humor. If my professors were like this, I'd have studied forever.
Thank you for the video!
I was absolutely thrilled to discover The Royal Institution's channel and the fantastic lectures on it.
Just watched the lecture and found it very interesting. Loved the jokes and magic tricks Felix had prepared for his audience! Very talented young man.
I must say, this was a very good talk. I feel I learned more watching this than I did in all of my physics 2 class.
That was beautifully explained and put together. I hope to see more from Felix in the future - he's a great communicator.
As we can see in this video modern science is a big scam.
I was there at the live lecture. It was supper interesting and well made!
Found what you're looking for.
[Attention]
[Virtue points]
Except.... The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative of the electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
I liked the 19th century theme and have fun learning something interesting as well... this is an unforgettable talk as it has the charm of an explorer tale and at the same time talking about the cutting edge 21st century science.
Yes and brilliantly utilised to include the people behind the scene which usually go overlooked and they did that lovely and hats off to them all.
Nice to hear about potential applications of spintronics! Great presentation.
This was so well presented by Felix Flicker. I have now discovered a new channel from the RI to binge ! Thank you, RI, for bringing science presentations to the larger world in engaging ways for people to try to follow.
Trying , lol
This was literally one of the most interesting things I may have ever listened to. I'm a moron, but Dirac was a genius of awesome proportions imo! Thank you for the presentation!!!!
here is how "magnetism" as a "fundamental force" is incorrect: Magnetism is an emergent property of the electric field. The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative/emergent property of the electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
The camera and lighting teams have done amazing work, as did the editors. The close-up shots look amazing...
Thank you, that's very kind of you to say. We do miss our lecture theatre very much at the moment, and wish we could make our current talks as beautiful as they used to be.
I'm a visual learner so really loved the graphics with explanations. Great job, young man. Thank you!
I like his suit, he looks like the 11th Doctor!
Bow ties are cool.
Dr. Who
More like the Highlander (Adrian Paul)
Damn, I had no background info regarding the target still I listened to the whole talk & his explanation kept me glued to the screen 🙏 such an awesome Professor, big respect to everyone involved in this project 👌
same, above my head due to no background knowledge, super interesting, will watch more than once.
This may help you think about the relationship between the electric field and magnetic force: Magnetism is an emergent property of the electric field. The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative/emergent property of the electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
As we can see in this video modern science is a big scam.
Govcorpwatch is right. This is a scam to get money for "research". 100% of called modern physics and quantum anything this: scam. Pure esoteric mambo jambo reheated for ignorant audiences. 99% of the science fan boys understand 0% of what's said.
Thank you ! for the clear explanations, I learned some new concepts. It takes someone who really knows a subject, in depth, to explain it in simple and clear terms.
The rare combination of genius that blends humility to give credit where not required, to simplify his subject to make it accessible to his audience, and whit to be genuinely accessible (aka down to earth and able to understand his audience's cues and prioritizing their comprehension over erudition)
In sum, *thanks*
19:23
and suddenly, "There is no spoon" makes so much more sense xD
when he answers questions I did not know I had... Brilliant + he is a great presenter
He is making MASSIVE presumptions about the "magnetic" force that aren't true nor real: Magnetism is an emergent property of the electric field. The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative/emergent property of the electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
43:42 "Or so we think" thank you for taking that risk and being so scientific
Magnetism is being treated as "or so we think"... here is how that thinking is incorrect: Magnetism is an emergent property of the electric field. The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative/emergent property of the electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
This was simply amazing! Brilliantly explained. Engaging. Wondrous. Entertaining. It made me feel like a young boy who could marvel at the world again.
"fundamental" and "emergent" phenomena - phononos make lot more sense now :) Wonderful lecture.
The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative/emergent property of the fundamental electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
@@govcorpwatch looking for magnetic monopoles may be futile - but not insane. Looking for things that SHOULD NOT exist is a great way to check if your theories are correct.
For example - you may have theory (hypothesis?) that all crows are black, it's looks quite strong since there are milions of black crows - but one white crow will instantly overthrow it. (sorry if double post - CZcams had some issues)
@@grg121344 np. I say its insane because there physically CANNOT be monopoles given that the magnetic force is LITERALLY a derivative of the electric field. Insane, because it is physically impossible. Only people who don't get this relationship think than monopoles are somehow "real" or "possible" or worth "searching for".
@@govcorpwatch - Newtons grawity theory is so pracise you can locate a planet just by looking at movement of other plantes. I guess it was quite a shock when it was discovered that movement of Marcury dosent quite match Newtons law predictions...
Thats why i think looking for something that should not exist is worthwile. Cause every "law" we know is just a model of reality - and models have limited use. Sometimes they break when things get very large (and astrophysicists start inventing things like dark matter), sometimes when things get very small or very fast. Maybe magnetic monopoles do not exist - and Gauss law holds in every situation, in every scale. Or (please consider that im not a physicist and following sentence is plain gibberisch) at very small scale they exist - and we cannot observe them because universe is way to cold now. Maybe electric charges in reality do not exist - and what we perceive as electrons is just a bunch of magnetic monopoles rotating in a very strange way :)
The RI provides us with no surprises. Why not? Because every talk is fascinating and informative. It's always exciting to receive a notice of a new RI presentation and this one did not disappoint. Thank you Dr. Flicker for a wonderful presentation.
I would rather enjoy having Felix Flicker explain literally everything in the universe to me. This is delightful.
What an excellent lecture. Thanks very much.
Wish I could be in London to watch these lectures. Amazing watch, thank you!
"The magnetic field of a single atom is called its spin". Wow. I've been reading so much about this stuff and nobody ever told me that spin was just another word for an atom's magnetic field.
I think it's a bit of an oversimplification. To my understanding, spin is a particle's inherent angular momentum, and charged particles with angular momentum produce a magnetic field.
Exactly. I believe the magnetic field is a result of spin. Perhaps even rightly called an emergent property of spin. Spin on itself is a more fundamental property that I still find hard to understand myself.
Quixote it’s not exactly correct, spin is an intrinsic property related to angular momentum, and magnetic fields are created by things with electric charge and spin
@@bengoodwin2141 It's worth mentioning that the magnetic moment of a neutron, despite having no electric charge, is almost as large as that of a proton.
"Spin" as a particle property is something different, which I guess is the context in which you heard it the most.
Thanks you for this impressive and much interesting lecture. Nice to see the history, fundamentals and possible applications of advanced research like this!
I really don't remember if I blinked my eyes during this wonderful talk........
Great presentation 👍👌👏
Wooo so glad you guys re-uploaded this, thought I missed it when the last one disappeared!
Not gonna lie, when I saw the thumbnail I rolled my eyes at the appearance of this guy, but he completely won me over after a few minutes. That's quite the achievement, because I am one miserable, cynical git.
Not even watching him; his voice and cadence are easy on the ears though.
superscatboy
Know what you mean. Thought he looked phoney but he really is the real life Dr Who!
@@q.e.d.9112 he looks like Dorian Grey in that costume.
Fabulous lecture! Thank you Felix Flicker! Not a physicist (though my father was), I still understood almost everything. I'll be forwarding this link to my nephew who's a physics teacher. I am also subscribing to this CZcams channel. The one thing missing for me--probably not Dr. Flicker's field of expertise--is info about the search (both theoretical and experimental) for magnetic monopoles. I refer Dr. Flicker to a paper written by my father and a colleague (the late Prof. Donald Menzel of Harvard), submitted to "Nature" in May 1974 and published later that year, titled in the preprint "The Gyron Field, a Gravitational Analogue of Magnetic Force." In the paper they use Special Relativity to demonstrate--in a simple and elegant thought experiment even I could understand--the existence of this analogue. This can be understood as an effect due to time dilation of a near-light but unaccelerated speed differential between an observer and a pair of particles in electric-gravitational equilibrium. If their conclusion is correct, doesn't this make a magnetic field secondary, in an important sense, to a preexisting electric field? And if so, couldn't this explain why a magnetic-monopole particle is impossible? (Unless, that is, time dilation could, theoretically, affect a magnetic monopole of the right parity in like manner?) Or maybe this is another point at which Relativity and Quantum Mechanics, as represented in Dirac's work on monopoles, collide.
Such a beautiful lecture! Absolutely loved it. I hope to give a science talk in the same 19th century way one day!😄💎
Great talk, loved the theme and the level was just perfect for someone who has no experience with the topic.
I did not like this talk. The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative of the electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
Enjoyed the lecture and the topic. Great presentation!
This is so refreshing. Somewhere in the abyss of madness I shut down being interested in modern physics-partly because science began to resemble a power/money based contest of wills instead of a collective labor of human minds to reestablish the value of human intelligence.
this guy is a really good presenter, i think this might be my favorite talk from RI
20 years ago when strong permanent magnets were almost ubiquitous .. That availability allowed neophytes to do their own monopole experiments which ended up with a dipole configuration of magnets that produced a pseudo monopole or a more northern or southern polar intensity.. as explained in this discussion.. it would be nice to have a discussion about the physics and practicality of a homopolar generator and if such a generator would be more or less efficient… Thank you for this discussion…
After my second time watching through I think the answer to your ultimate question may be: yes, fusion is practically more efficient than fission.
In an electrical generator both poles are used to generate an AC current.
Yes, but the practicality is to use less energy, fusion uses lots more over a short space, new elements have since been created 2023 that should use less energy to create monopole, maybe with spin ice or without.
@FuZZy LoGiC Uk I discovered a newly named element this morning in an experiment, working on publishing the discovery soon. The element I discovered exhibits this property of magnetic monopolarity and is also a fusion upon observation.
I call it Urium, 0, or The Halogen and I'd love to discuss it further in a non-youtube comment medium lol
@@johnsmoak8237 ah, you should have a talk with my colleague (Dr Eisuke Matsuda (Yamagata) about your find.
Hey sir, this talk surely magnetrified my interest in Magnetic monopole. Hope the expedition reaches some monumental breakthroughs in near future
Great video. Always motivates me to learn more and then I remember my math marks in University and makes sense why Im not involved in physics. The explanation of why we cannot split the atom to have north and south was so perfectly demonstrated. I am happy to have learned something new today. Thank you for the video.
When i was in my first year, i tried to create a monopole by emergent properties but on a macroscale... This kind of makes me feel like i was on to something, it's sat in my box of failed and not fully understood ideas, this is so awesome
He looks so much like Cedric Villani! Looks like a very interesting topic.
From some angles he looks just like a younger Adrian Paul as well.
Casey Affleck all the way
Exactly thought the same thing
Magnetism is an interesting topic. Here is what I have to add: Magnetism is an emergent property of the electric field. The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative/emergent property of the electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
Just wow!! much better than reading a paper. Thank you:)
An absolute pleasure to watch! Very exciting research and a wonderful speaker!
Absolutely fascinating. You, sir, have a gift for making very complicated things understandable. Such understated brilliance, with respect for the subject matter and a welcoming demeanour. I could listen to you lecture all day. Thank you for this.
Bravo, Felix! keep on keeping on! :)
With channels like this, there really is no excuse for ignorance. Rock on you guys
I love that new science can still be done with apparatus that is extremely simple and understandable by us plebs. Excellent presentation as well.
5 mins in and LOVE THIS.... This guy clearly loves his work, and has CLEARLY approached his field with a respectful acknowledgment of the foundational theories yet also dares to stray from the pack and actually approach physics with an open mind and inquisitive approach as opposed to the standard “nope, not possible because conservation, and Newton, and beep bop derp not possible”.
Take note people...this is the type of teacher that will bring the human race back to hungering for knowledge instead of clappin cheeks and watching cat videos.. This is the guy you want teaching your kids...
He could be casted as scientist in any movie or documentary.
Or a documentary about Russell Brand
Specially because of that bow.
Every good scientist by nature has to be an actor in order to bring the emotion inherent to the poetry of discovery that would otherwise be lost on the ignorant.
To those educated in the appropriate areas, the excitement of a magnetic monopole in any capacity would be enough to carry the entire lecture.
I was thinking "The Time Machine" during the entire presentation. Bonus: He wouldn't require much coaching for the technical scenes.
quack science. The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative of the electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
Take a moment to look at his left cufflink, then at his right one. That's genius.
What's a cufflink?
@@rorschacht8478 the thing that holds together the two pieces of this particular type of shirt cuff.
next time add a time reference - this lecture is almost an hour...
@@andrerodon3921 There's not a precise time reference, I've just noticed it while watching.
@@serra_edoardo Yeah, but lots of us are watching on a tiny phone screen. Please give us a clue!
Amazing, I've being hearing about research which magnetic monopoles for a while now but never understood how that would be possible. Great presentation and easy to understand.
The most interesting is that you can interpret this monopoles as particles traversing the crystaline matrix as waves, just like if it was normal particles travelling through vacuum.
So you could make a monopole generator and a charge could run through a circuit and anahilate on the other side with the opposite charge. It has some similarities to the way positive charge (lacunes) move through semi conductors.
@Dirk Knight You should look for therapy.
@Dirk Knight Got me. =P But seriously, what is your problem with this guy. Even though this is not a fundamental partical with a monopole, this is still interesting, and it might indeed have aplications in spintronics.
@Dirk Knight Yeah, but that is the point, it is not competitive yet because the limit of electronics didn't reach the limit. But it is best if we look for alternatives now, before we break moore's law.
Electronics is better until it is not.
I don't believe that they are going to find true monopole particles too. But this pseudo monopole in cristaline structures is possible. It is like charges in doped silicon.
A wonder if they could make better capacitors with this. I don't suppose they can tunnel through a gap between crystals or a gap in the lattice.
Very smooth presentation of complex concepts. I really appreciated your short asides to define terms in understandable language.
Me: Mom, can we have Cedric Villani?
Mom: No, we have Cedric Villani at home
Cedric Villani at home:
They look similar
exactly my thoughts.
For a second there I thought Cedric had switched from maths to physics. They both share the same style. His scientific doppelganger (or sosie would be better)!
He seems more Newtonesque to me...
@@ericderbez2446 Technically Cedric Villani has already done that since he's specialized in mathematical physics
When I was a student Paul Dirac came to our university to talk to us about magnetic monopoles, which were just an object of speculation.
Still are.
I am by no means a credited intellect in any field. But the second I saw the separation of the poles I thought of on-off switches and logic gates. Awesome lecture and I truly hope you find the key to a monopole magnet, it will change a lot of things in many fields for generations to come.
Great video! One thing which confounds many physicists is that magnetism is not in any way a force, but rather an effect. In much the same way, gravity is not a force, but an effect. Magnetism is simply the visible result of the change of direction of an electrical charge.
If what you say is true how is it that an EPFCG works?
@@ericwolf1782 considering they produce tens of terawatts, I would say by electrical discharge.
"Isn't that exciting?"
Pause.
Wow, actually yes, yes it really is.
The way his face lit up when he said that shows his love for physics
Magnetism is not as exciting as it's being made out to be. Magnetism is an emergent property of the electric field. The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative/emergent property of the electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
Hahahaa!!
"That's an octopus, but it looked nicer."
4:00 most beautiful and significant illustration of the 20th and 21st century.
That was worth every second invested! Thank you for a most excellent video! :D
This lecture got STYLE!
Is there any character that Daniel Day Lewis can't play?!? Bravo
I am so glad I stumbled across this most interesting and creatively put together lecture.
Something about the picture of Faraday, projected during a 21st-century lecture in the same hall in which he spoke, and where his ideas are still relevant, brought a totally unexpected lump to my throat.
From the thumbnail I feared Cédric Villani. Phew.
P.S. - Nice detail on the cufflinks. ;-)
feared? i was hoping it was
Cute. Now let's see you isolate the holes from the cheese.
@RASOLDIOS do you happen to know what is the required pre knowledge I need to understand this lecture?
Or separate the holes from the Albert Hall.
At 12:20 he says "The other route is to take other stuff and smash it together." I love this! Usual reaction when something isn't working the way you want it to... HIT IT! 💥😁
That was quite the presentation, I love having so much to think on and look forward to hearing about.
Think on this relationship between the electric field and magnetic force: Magnetism is an emergent property of the electric field. The search for "monopoles" is insanity. The Magnetic "force" is literally just a CHANGE in the electric field (eg, changing positions of an electric charge) propagating at the speed of light! As such, "magnetism" is not a REAL force... it is a derivative/emergent property of the electric field. All physics equations must be rewritten in an electric field and not the "magnetic field" because magnetism is derivative of the electric field. There is no such thing as "magnetism" as a fundamental force. LOL. It is all an electric effect. When an electric field changes, everything around it must change their charges to equalize their electric connection. That change in the electric field propagates at the speed of light, and literally LOOKS like magnetism, but is not. See other videos on how relativity creates the electric force to look like magnetism due to the relativistic speed of the electric particles moving. How much money, time, and human thought is being wasted on looking for monopoles simply not understanding that there is no "magnetic" force?
I’m just happy he didn’t play the “Brown Noise”
@1Energine1 en.wikipedia.org/wiki/Brownian_noise
@patrick quinn what does the "brown note" have to do with LGBTQ?
@@YellowGoddess he is posting comment about LGBTQ everywhere, just ignore him
Guys, the “Brown Note” is a poop joke.
Please, let’s keep our humor juvenile, not political.
Great quality, thanks for this upload.
This will get millions of views for sure!
...Darn, I forgot, this is science. :-/
This is a brilliant talk, and so so well presented (for someone like me who is so much more learned in clinical biology than physics)!
Fantastic speaker. Deepened my appreciation of what is fundamentally real vs emergent. - Pushing further back the threshold at which I understand the dream-like nature of life to begin.
Oh my god, he looks like James Franco playing Tommy Wisaeu in The Disaster Artist, lmaoo
Cannot unsee