If we owe a debt to Mr Faraday, and as a fellow of the R.I, then perhaps his resting place in Highgate cemetery needs to be tidied and cleaned up, its overgrown and hidden up against a wall, both he and his wife Sarah are there...I was shocked at how unkept it was......and we owe that man so much...
Lesson from king David, weep for the living not dead. This means, while help maintaining Mr Faraday and family grave is good. It is better seek out and treat Mr Faraday's descendants to a drink or meal. Best is befriend to them.
The collaboration between James Maxwell and Michael Faraday is grossly under-appreciated and truly revolutionary to Physics and our contemporary technology.
I agree with your analysis. Maxwell established Mathematically that Faraday was correct all along when nobody believed him i.e.what Faraday was saying about electric and magnetic properties of light was correct
I just stopped at 14:19 and said "WOW!". Faraday was a great student in the right place at the right time. All these folks were focused and astute. What a joy these demonstrations are and this summery is. This is a Great presentation.
I am so lucky to be alive in an age when I can experience such excellent lectures at the Royal Institution from my rural Illinois farmhouse! Thank you to everyone who supports this Institution.
There are some excellent biographies that go into much more detail out there. One of my favorite scientists, self taught, humble beginnings and way ahead of everyone else. Oh, and changed the world in a most profound way.
I can't say how grateful I am to the RI and how much effort they put into making these inspiring and mind-blowing videos. I was teaching myself electromagnetic induction for GCSE Physics, and while reading my CGP guide, I remembered doesn't magnetism have something to do with somebody named Michael Faraday? And then I go on to read about him on the RIS website. leading me to this wonderful lecture. I was utterly dazzled but also saddened by the fact that we GCSE students just learn about the basic concepts whilst kept ignorant of the centuries of hard work and innovations of brilliant scientists. Not only did this lecture help me understand the topic of magnetism, but I also got an insight into the minds that made it possible, and how - it's just so inspiring. I just wish more people and young minds that have a love of science and curiosity discover this channel.
I truly loved this lecture. My entire career has involved innovation and prototyping, while I’m at a level far removed from Faraday, I’ve used many of the same methods to achieve my goals. Not being professionally trained, I believe, allowed me to make some intuitive leaps that professional engineers weren’t able to see. Thank you for the wonderful explanation I’ve been trying to put into words for decades.
To help power equipment in outer space: (copy and paste from my files): Potential endless energy source basically anywhere in this universe: a. Small aluminum cones with an electrical wire running through the center of the cones, cones spaced apart (not touching I'm thinking) but end to end. b. Electromagentic radiation energy in the atmosphere interacts with the aluminum cones. c. Jostled atoms and molecules in the cone eventually have some electrons try to get away from other electrons of which those electrons gather at the larger end of the cone, of which also creates an area of positive charge at the smaller end of the cone. d. The electron's in the wire are attracted to the positive end of the cone and the positive 'end' in the wire are attracted to the negatively charged end of the cone. e. Basically a 'battery' has been created inside the electrical wire itself, different areas of electrical potential. Basically a 'wire battery' or a 'batteryless battery', however one wanted to call it. f. Numerous cones placed end to end increases the number of 'batteries' in the wire. (In series to increase voltage, in parallel to increase amperage). * Via QED (Quantum Electro Dynamics) whereby electromagnetism interacts with electrons in atoms and molecules, one would have to find the correct 'em' frequency for the correct material being utilized for the cones. The shape of the cones could also come into play. The type and size of the wire as well as the type and thickness of the insulation between the cones and the wire would also be factors. * Of course also, possibly 2D triangles made up of certain materials with a conductor going down through the center of the triangle could possible achieve the same 'batteryless' battery system. * Plus possibly with the 2D concept, layered 2D's that absorb different energy frequencies, thereby increasing the net output.
To help protect against at least some harmful cosmic radiation: (copy and paste from my files): MODIFIED MOLECULES: More dense molecules with potentially new characteristics created primarily for potentially better protections from harmful cosmic radiation in outer space as well as different applications on planets and moons. Setup: a. A more complex molecule. b. It exists under: 1. A certain gravitational energy field. 2. Under certain electrical interactions. 3. Under certain magnetic interactions. 4. In a certain temperature. 5. In a certain pressure. Modification: a. Change 1 or more of the above items to change the shape of the molecule. Effects: (When modification item[s] removed): a. Molecule returns to it's original shape. b. Molecule returns to a shape larger than it's original shape. c. Molecule returns to a shape smaller than it's original shape. d. If larger than or smaller than it's original shape, then possibly the same molecule with different interacting characteristics, and if smaller than it's original shape, then a more dense molecule. e. Other atoms and/or molecules might be able to be attached to this 'new' material, and the 'new' larger molecule could possibly be modified as above yet again and on and on. The possibilities are virtually endless. f. New 'space age' material being formed for various uses.
@@charlesbrightman4237 Both of your proposed applications will require some imaginative and rigorous experimentation. Have you taken Faraday’s example and begun working on those experiments? Wouldn’t it be fun, and valuable, even if they didn’t quite do what you wanted?“Prototype” the results, contribute to future missions! Faraday would have!
Wonderful lecture. So easy to follow and enlightening. Michael Faraday is one my heroes. Another innovator who later put electromagnetism to practical use was American inventor Thomas Davenport who invented a DC electric motor.
I am not sure why but it always makes me a little bit sad to see empty seats in this legendary lecture hall. I love these demonstrations and hope to attend one day.
I was thinking exactly the same. If only this was in my city, there would be students standing on the stairs, and walkways, just to be able to see these demonstrations.
Superb demonstrations using similar crude devices of the day. Painful to watch at times, but the principles were correctly demonstrated. I do fully understand these principles, being in Electronics for 55 years. The one phrase left out was Back EMF. Backward Electro Motive Force, which is represented by the Magnetic field collapsing when the Voltage is removed. Without it, a motor or a generator would not run.
We can 'scribble' our notes first - then write them out meticulously. Have people forgotten how to write? We sketch it out first - if we are hand-writing. We could do things before Photoshop. Artists often painted over mistakes or made sketches first.
When I read about the early days of our mastery of electricity, I always wonder how they physically got from one point to the next--what they were actually doing with their hands and with what apparatus, etc. I spend a lot of time thinking about this type of thing, and seeing it replicated in this video fills in the blanks better than anything I've ever encountered. Thank you, RI.
It rotated on its own. I developed the demo in the RI prep room. it rotates the same way anywhere in the building. Sulfuric acid has some bubbles that sometimes it needs a little push to get started, but it will continue to rotate for as long as we leave the power on. Verity would diffuse mercury with a thin layer of nitric acid on it. @@beestingza
It must be a privilege to study at this university. So much great history. I am grateful to live in this internet-age because I can self-study everything I want thanks to the universities and other educational entities, who upload lectures on RUclips . In the times I was a student (80's) I would never be able to see things like the Feynman lectures, or f.i. a lecture from Shockley explaining how the transistor works. Besides that I am not English. Also love the other lectures from the R.I. although I am mostly interested in electronics and physics, I even watched most other videos because a good teacher makes all subjects interesting to watch. So R.I. thanks for sharing these lectures. I would love to see a video about the history of the R.I and see things like the office of Faraday and the building to get a feel of how it must have been to study there.
..pa4tim ..You are "English" enough that I understood every word you posted! (if me knowing American/English qualifies?) If we endeavor to learn online as you say, instead of wasting time with other things, we will enrich our minds & find satisfaction in understanding Applied Physics. 🇺🇸 😎👍☕
The Royal Institution isn't a University, though, it's a study group, spun off from The Royal Society, itself rooted in Gresham College, which still flourishes, and is far older than any of London University's Colleges, although it's vocation is similar to Birkbeck's. The Society and Institution are more scientifically orientated, but should not be confused with the constituent bodies of the Council of Engineering Institutions, which are the Professional support foci.
@@SpeccyMan It does in English English, as it once read "his vocation" c1600. It does not in American English, because you're unendurably slapdash as a nation - to the point I want no more of you, good or bad, essentially because the good have perverted themselves by inaction, which comes back to the same thing, the cardinal sin of Acedia, sloth, not doing the things you should have done.
"I once was blind but now I see". A great example of how we perceive information, and how we think. 1830's, the same time as Thoreau and Emerson... I think.
Actually, when Faraday presented the book of notes to Humphrey Davy, there was no job opening. But the following year when Davy's assistant left, Davy remembered the book he had received from Faraday and offered him the position.
Visualizing magnetic fields was always confusing to me because of all the little windings in the DC motors I would play around with as a child. There's so much happening inside of the 'modern' motors. Great presentation! Peace
The techies also really should have adjusted his mic to stop us hearing his nasal breathing. Really distracting. And he skipped so much interesting detail - like he couldn’t wait to finish and go home; seemed impatient with his volunteers too.
Yes -such a shame. It isnt that difficult to produce decent demo equipment that gives predictable results. Especially when doing it for the RI !! Really was embarrassing to see him trying to get poorly produced demos to work - then giving half hearted apologies to his audience when they didn't work I think it was poorly planned, poorly rehearsed -and when it went wrong - he had nowhere to turn. ( apart from "turning the next slide2) And as for the disguised recording of "celebrating 200 years of the electric motor etc" - who the heck thought that was a good idea ??. A good lecture but I doubt if it did true justice to MF.
this was a nice discussion and demonstration. i worked with electricity my whole life, in my early days as a radio transmitter repairman in the u.s. air force and then as a lineman for a local municipal power company for 40+ years. i knew of faraday but mostly as a value of capacitance. it was a bit of a refresher on the early rudimentary basics of electricity. sometimes one forgets and then remembers about how much one has learned, known and experienced in life. thnx.
So very interested and entertaining. I spent 50 years in the electrical field and familiar with Faraday. I didn't know much about his early work. Thank you very much.
Fascinating, Faraday sent hardware to others, surely a first for "open source hardware". And his thought process unconstrained by a proscribed, taught, well trodden path.
It was tragic, i feel like it boiled down to self confidence and in some part ill preparation. Oh well, it was informative, if a slog. Presenter seems well intentioned and informed, but might have bitten off more than he can chew.
If everyone in the factories took as many safety precautions as you did for every slightly hazardous job.. nothing would ever get done. We are all fortunate that skilled labor takes the chances that they do.
And indeed -there was NO need for it!! - He isnt inviting members of the audience up to do anything contentious. As fa as I could see there was nothing more "dangerous" than a 9V pp3 battery !!
It almost sounds as though you are on the Board of such a company and thinking about cutting expenses at the risk of your employees? But if so, reconsider. Today’s skilled laborers have unprecedented access to legal recourse. And don’t put your comment in company correspondence - it will end up in some clever attorney’s brief and triple the punitive damages. lol. Of course, you may have a different reason for posting this. If you don’t mind, what is that reason? Respect, Jeff🙂
"The Structure of Scientific Revolution" by T.S. Kuhns beautifully describes the paradigm shift. You see the world one way yet anomalies appear. To answer the reason for them you need to see it a different way and when you do; the world changes.
I watch a lot of lectures of that kind, as an electronics technician, but I find this one having poorly made experimental devices to prove Faraday's observations and kind of messy presentation of the progression of his thoughts. On the other side I enjoyed the displayed pages of that marvelous historic book. But it's still enjoyable for history of science lovers.
a brilliant scientist, but sadly his theories weren't originally accepted amongst his peers. Faraday, although a great experimental scientist, wasn't a mathematician, so was unable to prove his theories regarding electrical/magnetic fields. fortunately, years later, he met and befriended the equally brilliant, mathematician, James Clerk Maxwell, who was able to formulate all of Faraday's experimental work & prove him right
@@johncarlisle6865 James Clarke Maxwell, I place him next to Sir Isaac Newton. He opened the door of modern science. Genius, no other word for this great mind & personality. We learned Electromagnetic Waves & Radiating System in college. It amazed me.
@@amritpatel3794 he's not known as the Scottish Einstein for nothing, & yet sadly, very few people outside of the science/electrical engineering realm have actually heard of him & that includes Scottish people
@@johncarlisle6865 My best friend, college colleague, started a company in India. And he kept his company's name, Maxwell Automation, in honour of James Clark Maxwell.
Interesting Michael Faraday's process. As an inventor myself, I'm particularly weak in observational skills. Not so, for Michael. However research is important and I agree that an independent approach can yield good results. I've invented pumps, engines, direct upwind prop/windmill yachts, XRAY hologram to visible light process, heat to electricity surface and written my own software, designed circuit boards, PCBs and 3D objects. The tools we have today are fantastic as are our research resources. There are people who can achieve well beyond me academically but at the age of 11 I decided to be an inventor and I expanded my mind and skills in that direction. As with Michael Faraday looking at the interaction between electricity and magnetism, food for an inventor consists of mental challenges and appropriate building blocks to achieve solutions for those challenges. Understanding practical physics and bringing it into every day life is important. Learning about other forces, prior art, other technologies. For example you've glossed over electrostatic repulsion of light charges, there's been no scope for photon powered motors, piezoelectricity or a myriad of other effects but they all are inventor food. Another of my inventions, reinvented by a guy who uses an effect i thought up in my early 20's, piezoelectric motors. Using waves of electrically generated deformation to slowly rotate a shaft or move a linear actuator. Some of us are brilliant at those initial sparks of an idea but lack the narrow minded focus to refine only one invention when others are also tantalizingly distracting. A part of our future forays into inventing relies on extending our physics perceptions beyond our human constraints. Above and beyond the visible rainbow frequencies, sound above and beyond our own hearing, forces our bodies have poor sensitivity to. Expanding our understanding of Scent- Luca Turin's genius exposed in his TED talk on scent is a fantastic start. Understanding not only inter-mitochondrial communications, but also how those communications impact our own nervous system. As fungi have been observed to solve mazes, it is naïve to think that our DNA and our mitochondria are not intertwined through the evolution over the millennia in ways exceeding the Krebs cycle alone. My intuition tells me that instincts are passed through the mitochondria rather than our human DNA. The potential for cellular memory storage escalates the possibilities for recall-Contemplate the book "The holographic paradigm" with this in mind. We are walking, talking biological bipedal symbiotic communities with all the arrogance of humans thinking we are something special in the same way as we rejoice in a national sports win, taking vicarious pleasure in other's successes, when it is only as a world community that we achieve those human things that we rejoice in. Animals, mushrooms. Symbiotic protein. We are no different.
You mentioned that he started out in the publishing industry and became one of the greatest scientific minds of his age it sounds an awful lot like another publisher from America who did the same thing Benjamin Franklin!
Had no clue he built a motor which worked with the earths magnetic lines of force field. Didn't even have a clue it was possible. I keep learning thankyou RI!
A brilliant lecture and demonstration, so informative... There is however one major point missing... What made the difference, only hinted to in this video, is Faraday's theoretical contribution, which I feel is no less critical than his experimental contribution, and the former led directly to the latter. Faraday was indeed not using mathematics, but he had a genius imagination of the kind Newton and Einstein had: Faraday could visualize the electric and magnetic fields in his mind's eye, and he did thousands of thought experiments before discovering his physical experiments. I am sure he was dreaming much of these fields at night. While hearing this lecture, I stopped before any demo and visualized the fields in my mind, arriving exactly to the shown results. For me today it is easy: What I know of the fields today is taught in basic physics classes and is exactly the refined sum of Faraday's intuition expressed by later mathematicians in the language of mathematics. Faraday realized that the fields are independent entities and are the major players - not the charges, currents, or bar magnets. Faraday could not avoid knowing a bit of Newton's way of thinking, since it was the language of science at his times, and he did invest much in learning science from encyclopedia Britannica, plus attending lectures. His insight, however, led him to realize that in electricity and magnetism we deal with something fundamentally different. Faraday's genuine insight led directly to the paradigm transition from massive particles to fields and waves. This new insight is as great as the best of what Newton ever did. Only Faraday's fields enabled electromagnetism, relativity, and quantum mechanics to be later discovered. James Clerk Maxwell read the writing of Faraday carefully and, as he says it himself: All I had to do was just to translate Faraday's insight into mathematics. This enabled Maxwell to discover the full and complete laws of electromagnetism and deduce the existence of electromagnetic waves and then discover that visible light is an electromagnetic wave. Maxwell was the only one able to make this genius breakthrough since he internalized Faraday's new insight. Other mathematicians tried to deduce everything from Coulomb law, which looks exactly as Newton's universal gravitation law. Maxwell was the only mathematician who followed Faraday's new insight, which made all the difference and enabled electromagnetics. In short, Faraday was a theoretical physicist as much as he was an experimental physicist. The last claim is not so apparent since he was not using mathematics. Still, his thinking was as deductive as mathematics is. Einstein is very similar to Faraday in this respect since Einstein imagined relativity first and only then used elementary mathematics to describe his special relativity. With this same imagination and insight, Einstein, rather than all other better mathematicians, was able to formulate general relativity. In my opinion, genius imagination makes all significant breakthroughs in theoretical physics. Mathematics is no more than a language used to express it later. Physics is about understanding by insight how she behaves - the rest follows. Dr. David Goren
This lecture has helped me to make sense of the World. The penny has finally dropped and although it is several decades since I left school I am energised to learn more . You are a great teacher sir.
I completly agree with the fact that he was not only a scientist,I Watched some documentaries about his Life and read one of his books and I immediatly realized the same thing.He was especially a person Who understood and tried to make through physic the Natural world seeable to everyone.
Great lecture and very interesting in various aspects (history of science, the cumulative process of science, technology and innovation, electricity teaching, creativity). All in less than 1 hour.
interesting fact that Benjamin Franklin who laid the very foundations of understanding electricity (charge, +/-, lightning) also started out as apprentice in book printing. Also using it as source for books he would not otherwise have had. He was also probably the first american who was made a fellow of the royal society. He also, just on the side first used the terms positive, negative and battery for electricity. Sadly mostly reduced to the kite thing today. Which he did but not as suicidal as ususally portraied. And another parallel: despite being a very capable businessman, never patented any invention. The lightning rod for example would have made him fantastically rich but he gave it away for free. As he did his scientific ideas and theories, so some were proven by others before himself. Like the lightning=electricity thing.
Great comment! It made me think about the headlong rush there exists today for eminence and the Nobel Prize. Giving away a prototype is the move of a REAL scientist, in the broadest and best sense. Maybe there should be a prize for advancing humanity through scientific work, not just for innovation?
I have always imagined what it would have been like if Faraday and Tesla were best friends or Brothers. We would all be flying around in our own space ships by now.
he was fortunate to meet another genius in James Clerk Maxwell, but I agree with you & wish all 3 of them could have met & put their Mega brains together
Loved the one-off demo of the motor on the earth's magnetic field! I would love to see the breakdown of a modern electric motor and electricity generator with Faraday's principles. Had a Lego train in early 80s with an engine that used an electric motor, powered off a big old D-cell battery.. The kids' 2000's toys had a few motors, of various torques. I would love to see how potential difference (voltage/Alesandro Volta) and current (amperage/André-Marie Ampère) affect the motion of electric motors... A fly v. an eagle... Thanks! Love RI vids.
For more history on Faraday's experiments and how James Maxwell mathematized them, I highly recommend the book _Faraday, Maxwell, and the Electromagnetic Field_ , by Nancy Forbes and Basil Mahon. One of the best non-technical science books I've ever read.
It seems to me that in the last experiment the rotation should have been clockwise (CW) when viewed from above. Every time it was pushed in the CCW direction, it slowed down and wanted to reverse to CW, but each time it was nudged again in the wrong direction. I'm assuming that the black wire is negative, and the red wire is positive, and the Earth's flux is pointing somewhat downward, and the current flows inward on the spokes (conventional flow is positive to negative,) or the electron flow is outward on the spokes (electron flow is negative to positive.)
Well, it certainly didn't work, though Ricketts acted as if (pretended?) it did. (ca. 53:00 to 55:00) and it DOES *seem* to work when the assistant pushes it clockwise ca. 54:00, it's uncertain, but it is clear it stops at 55:25 after Ricketts pushes it (after apparently coasting).
Fleming's left-hand rule for motors says it should have turned clockwise when viewed from above. The index finger is pointed downward in the direction of the Earth's magnetic flux. The middle finger is pointed towards the center pivot point in the direction of the "conventional" current flow which is positive to negative. The thumb points in the direction of motion which in this case is clockwise. I performed the experiment myself to verify this, and it worked. The torque is extremely weak.
The last part about him not much of a Mathematician and no math in his notes, was hopeful to me. So many times when I study physics there is just a wall of math hiding the interesting stuff. To me it often feels like the teachers hide behind it, because they dont really understand the physics.
Interesting Anders. I read physics and I was fortunate that I found math easy so no problem for me. However I never considered that the math could detract from the interesting stuff. Faraday, of course, showed that the math is not always needed in innovation.
I have spent a lifetime of study of electronics without using much math as I am very bad with mathematics. I study the works of people involved in alternative energy and such and without all the math and conventional electric rules and things impeded in my brain a lot of it makes better sense.
You signed up for the wrong physics class in school. Most students take conceptual physics. It's physics without being bogged down with all the math. It has some though. What they call the class can depend on where you live. It's too bad you ended up taking you harder physics class. I completely disagree with your assumption that the teachers hide behind the math because they don't understand the physics. I feel this way because you really need to understand the physics to understand what the math is telling you otherwise you're just looking at numbers. It also makes the math a lot harder to process in your head. I will say that is how I felt about chemistry though. Nonstop crappy math. While I don't generally struggle with math, it certainly doesn't mean I like doing it.
@@w1swh1 They go hand in hand. Sometime the experimentalist discovers new physics, but when a theorist who understands the maths comes along, like James Clerk Maxwell in the case of electromagnetism, it gives a deeper understanding and leads to further science. In the case of electromagnetism the constancy of 'c', and ultimately Einstein's theory of relativity.
He would, of course, be Sir Michael Faraday but he turned down honors for religious reasons. He spent the last years of his working life investigating industrial disasters as he was Britains most respected scientist.
Thankyou for this RI. Magic delivery about magical methods, pure magic...Imagined I was watching Micheal Faraday from within the RI theatre back in the 1820s but really on my TV , truly entertaining and profoundly mysterious
Most people don't realize that eletricity was one of the greatedt achivement of mankind, we used something invisible and yet were able to tame this "thing". Only years later, the electron was discovered. Then we discover the electric waves, semiconductors, the transistors... And now we can watch a video with a device on our hands!!!
Faraday was a genius. He wrote the equations that describe electromagnetic fields which included the scalar component. Later on, the scalar componentnwas deemed unimportant and the equations were dumbed down by eliminating the scalar component. Nikola Tesla realized that was a mistake. Konstatin Meyl has further developed Maxwell's equations.
Correction, it was Actually James Clerk Maxwell, who, in 1861 included equations that incorporated a scaler component in his (in)comprehensible more than 20 equations that, with the Lorentz force Law, mathematically describe classical electromagnetism and classical optics. Formalized in 1873 as Maxwell published 'A Treatise on Electricity and Magnetism.' Oliver Heaviside studied this book and employed vector calculus to then distill Maxwell's twenty plus equations down to the four that are widely recognized by students and physicists. The Scaler components were not included in Heaviside's work, however, depending upon what one is using the equations for, that component may or may not be useful. That being said, for a thorough understanding of the nature of reality one must account for the incredible effects that scalar fields impress upon matter such as action at a distance, entanglement and other phenomena that a person who is not deeply familiar with experimental physics would dismiss as impossible, pseudoscience, magico-religious thinking and so forth. Tesla indeed had a very firm grasp on the phenomenology of scalar fields and Konstantin Meyl has amplified Tesla's work and elaborated upon his theme. In the coming years the civilian development and appropriation or rejection of technologies based upon this aspect of QED will become central to the question of what it means to be Human.
For the children... look around you in that famous room/theater. When Michael Faraday was entertaining royalty with his magical magnets, there was no electric light, no back screen, no camera, no microphone, no toilet paper.
I enjoyed the process of discovery by recreating experiments with genuine equipment used by Faraday. I only have a problem with the digital and mechanical detectors. In fact, this is (after viewing many other videos all using modern day detection equipment) what aroused my interest at the start- only to be disappointed at the end. But definitely a very interesting lecture!
i thought tesla created the dynamo... but damn... This guys is the greatest of them all... we all have power because of him... we jump started a few thousand years development... cant imagine a life without electricity.
When we were kids, we played with mercury. It never harmed us because when we were done playing with it mom made us wash our hands with leaded gasoline.
It is always amazing to hear about the leaps of intuition or knowledge that lead to great (or even small) things. To me the take home message here should come at about 55:30... "he was not educated in the traditional means". This is still happening of course and it is pretty well understood even now that most kids have their creativity squashed by the present school system by the time they are about 12. Too bad the education systems of the european tradition (the only one I have any knowledge about) has not endeavoured to earn that lesson over the past 200 years. Just think where we could be by now (if Faraday's example is anything to go by) if there were more 'less educated' people that were free to pursue their creative genius...free from an education system that focuses on educating to get a job. Tesla was another genius but he was crushed by the capitalistic greed of how the system worked. Will we ever 'learn'?
It's an amazing lecture. But what I don't understand: when he demonstrates how the bent wire is supposed to go around, @32:30 doesn't that also happen with a simple "repel" action since there's a fixed axis?
Fascinating. For those who enjoyed this talk like I did, I'd strongly recommend "Exploratory Experiments: Ampère, Faraday, and the Origins of Electrodynamics" (book by Friedrich Steinle and Alex Levine).
I have always been interested in electricity ans magnetic forces. I thought about going to college but got married. (I have no regrets) I am now 66 and I appreciate learning new things. Thank you!
If we owe a debt to Mr Faraday, and as a fellow of the R.I, then perhaps his resting place in Highgate cemetery needs to be tidied and cleaned up, its overgrown and hidden up against a wall, both he and his wife Sarah are there...I was shocked at how unkept it was......and we owe that man so much...
Lesson from king David, weep for the living not dead. This means, while help maintaining Mr Faraday and family grave is good. It is better seek out and treat Mr Faraday's descendants to a drink or meal. Best is befriend to them.
@@cronostvg there is nothing wrong with honoring those who have gone before.
Are you actually going to do something about it or is saying something should be done honorable enough!? 😆
@@hyperspacejester7377 Speaking to be heard more often than not requires not speaking at all.
@@richarddemaray9775 Uh... well said!
Another home run by the RI. A fascinating look into Michael Faraday's innovative genius. Thank you Dr. Ricketts.
The collaboration between James Maxwell and Michael Faraday is grossly under-appreciated and truly revolutionary to Physics and our contemporary technology.
I agree with your analysis. Maxwell established Mathematically that Faraday was correct all along when nobody believed him i.e.what Faraday was saying about electric and magnetic properties of light was correct
I'm smart in my own ways, but not smart enough to understand much of what you demonstrated. Thank you for explaining it to everyone else.
Yes.. Did they invent zee slinky?
@@joeswampdawghenry "What's the go a that?", JCM.
I just stopped at 14:19 and said "WOW!".
Faraday was a great student in the right place at the right time. All these folks were focused and astute. What a joy these demonstrations are and this summery is. This is a Great presentation.
Who else got instant anxiety when he started handling Michael Faraday's book without gloves? It still makes me uncomfortable just thinking about it.
The PPT explaining creativity is outstanding.
Mr. Faraday was at another level.
Thank you David!!!
I like the presenter's best efforts to recognize the contribution of Faraday in science.
I am so lucky to be alive in an age when I can experience such excellent lectures at the Royal Institution from my rural Illinois farmhouse! Thank you to everyone who supports this Institution.
Just think how appreciative Abe Lincoln would feel today!
We have no excuse!
You go, girl!
YOU conveniently fail to recognize Nicola Tesla ! shame
There are some excellent biographies that go into much more detail out there. One of my favorite scientists, self taught, humble beginnings and way ahead of everyone else. Oh, and changed the world in a most profound way.
I can't say how grateful I am to the RI and how much effort they put into making these inspiring and mind-blowing videos. I was teaching myself electromagnetic induction for GCSE Physics, and while reading my CGP guide, I remembered doesn't magnetism have something to do with somebody named Michael Faraday? And then I go on to read about him on the RIS website. leading me to this wonderful lecture. I was utterly dazzled but also saddened by the fact that we GCSE students just learn about the basic concepts whilst kept ignorant of the centuries of hard work and innovations of brilliant scientists. Not only did this lecture help me understand the topic of magnetism, but I also got an insight into the minds that made it possible, and how - it's just so inspiring. I just wish more people and young minds that have a love of science and curiosity discover this channel.
I truly loved this lecture. My entire career has involved innovation and prototyping, while I’m at a level far removed from Faraday, I’ve used many of the same methods to achieve my goals. Not being professionally trained, I believe, allowed me to make some intuitive leaps that professional engineers weren’t able to see. Thank you for the wonderful explanation I’ve been trying to put into words for decades.
To help power equipment in outer space:
(copy and paste from my files):
Potential endless energy source basically anywhere in this universe:
a. Small aluminum cones with an electrical wire running through the center of the cones, cones spaced apart (not touching I'm thinking) but end to end.
b. Electromagentic radiation energy in the atmosphere interacts with the aluminum cones.
c. Jostled atoms and molecules in the cone eventually have some electrons try to get away from other electrons of which those electrons gather at the larger end of the cone, of which also creates an area of positive charge at the smaller end of the cone.
d. The electron's in the wire are attracted to the positive end of the cone and the positive 'end' in the wire are attracted to the negatively charged end of the cone.
e. Basically a 'battery' has been created inside the electrical wire itself, different areas of electrical potential. Basically a 'wire battery' or a 'batteryless battery', however one wanted to call it.
f. Numerous cones placed end to end increases the number of 'batteries' in the wire.
(In series to increase voltage, in parallel to increase amperage).
* Via QED (Quantum Electro Dynamics) whereby electromagnetism interacts with electrons in atoms and molecules, one would have to find the correct 'em' frequency for the correct material being utilized for the cones. The shape of the cones could also come into play. The type and size of the wire as well as the type and thickness of the insulation between the cones and the wire would also be factors.
* Of course also, possibly 2D triangles made up of certain materials with a conductor going down through the center of the triangle could possible achieve the same 'batteryless' battery system.
* Plus possibly with the 2D concept, layered 2D's that absorb different energy frequencies, thereby increasing the net output.
To help protect against at least some harmful cosmic radiation:
(copy and paste from my files):
MODIFIED MOLECULES:
More dense molecules with potentially new characteristics created primarily for potentially better protections from harmful cosmic radiation in outer space as well as different applications on planets and moons.
Setup:
a. A more complex molecule.
b. It exists under:
1. A certain gravitational energy field.
2. Under certain electrical interactions.
3. Under certain magnetic interactions.
4. In a certain temperature.
5. In a certain pressure.
Modification:
a. Change 1 or more of the above items to change the shape of the molecule.
Effects:
(When modification item[s] removed):
a. Molecule returns to it's original shape.
b. Molecule returns to a shape larger than it's original shape.
c. Molecule returns to a shape smaller than it's original shape.
d. If larger than or smaller than it's original shape, then possibly the same molecule with different interacting characteristics, and if smaller than it's original shape, then a more dense molecule.
e. Other atoms and/or molecules might be able to be attached to this 'new' material, and the 'new' larger molecule could possibly be modified as above yet again and on and on. The possibilities are virtually endless.
f. New 'space age' material being formed for various uses.
@@charlesbrightman4237 Both of your proposed applications will require some imaginative and rigorous experimentation. Have you taken Faraday’s example and begun working on those experiments? Wouldn’t it be fun, and valuable, even if they didn’t quite do what you wanted?“Prototype” the results, contribute to future missions! Faraday would have!
Wonderful lecture. So easy to follow and enlightening. Michael Faraday is one my heroes. Another innovator who later put electromagnetism to practical use was American inventor Thomas Davenport who invented a DC electric motor.
Faraday's an absolute hero of mine. I'm an electrical engineer now.
FANTASTIC RECREATION WHAT MICHAEL FARADAY DID IN 19TH CENTURY ! I APPRECIATE IT BY HEART AND SOUL . THANKS !
I am not sure why but it always makes me a little bit sad to see empty seats in this legendary lecture hall. I love these demonstrations and hope to attend one day.
I was thinking exactly the same. If only this was in my city, there would be students standing on the stairs, and walkways, just to be able to see these demonstrations.
I was surprised that you were allowed to touch such an important reference book without wearing gloves.
Superb demonstrations using similar crude devices of the day.
Painful to watch at times, but the principles were correctly demonstrated.
I do fully understand these principles, being in Electronics for 55 years.
The one phrase left out was Back EMF. Backward Electro Motive Force, which is represented by the Magnetic field collapsing when the Voltage is removed.
Without it, a motor or a generator would not run.
Michael Faraday is one of my favourite scientists
Amazing how Faraday's book is written with a pen and has no mistakes crossed out.
I can't even write a grocery list without screwing something up!
My grocery list is composed in Notepad, then printed out. 😂 🤣
We can 'scribble' our notes first - then write them out meticulously. Have people forgotten how to write? We sketch it out first - if we are hand-writing. We could do things before Photoshop. Artists often painted over mistakes or made sketches first.
Perhaps Faraday invented Tipex
When I read about the early days of our mastery of electricity, I always wonder how they physically got from one point to the next--what they were actually doing with their hands and with what apparatus, etc. I spend a lot of time thinking about this type of thing, and seeing it replicated in this video fills in the blanks better than anything I've ever encountered. Thank you, RI.
He touched the sacred notebook without gloves!
Told by paper conservator that the loss of dexterity from gloves leads to more damage than using clean bare hands
That’s correct. The RI has a full time staff conservator who trained me. No gloves on paper!
@@davidricketts7975 Did the final demonstration really work or did it just rotate from inertia?
It rotated on its own. I developed the demo in the RI prep room. it rotates the same way anywhere in the building. Sulfuric acid has some bubbles that sometimes it needs a little push to get started, but it will continue to rotate for as long as we leave the power on. Verity would diffuse mercury with a thin layer of nitric acid on it. @@beestingza
oh nooooooo
It must be a privilege to study at this university. So much great history. I am grateful to live in this internet-age because I can self-study everything I want thanks to the universities and other educational entities, who upload lectures on RUclips . In the times I was a student (80's) I would never be able to see things like the Feynman lectures, or f.i. a lecture from Shockley explaining how the transistor works. Besides that I am not English. Also love the other lectures from the R.I. although I am mostly interested in electronics and physics, I even watched most other videos because a good teacher makes all subjects interesting to watch.
So R.I. thanks for sharing these lectures.
I would love to see a video about the history of the R.I and see things like the office of Faraday and the building to get a feel of how it must have been to study there.
The way that discoveries were made is as interesting as the science itself!
..pa4tim ..You are "English" enough that I understood every word you posted! (if me knowing American/English qualifies?) If we endeavor to learn online as you say, instead of wasting time with other things, we will enrich our minds & find satisfaction in understanding Applied Physics. 🇺🇸 😎👍☕
The Royal Institution isn't a University, though, it's a study group, spun off from The Royal Society, itself rooted in Gresham College, which still flourishes, and is far older than any of London University's Colleges, although it's vocation is similar to Birkbeck's. The Society and Institution are more scientifically orientated, but should not be confused with the constituent bodies of the Council of Engineering Institutions, which are the Professional support foci.
@@JelMain ... its vocation ... (the possessive pronoun has no apostrophe!)
@@SpeccyMan It does in English English, as it once read "his vocation" c1600. It does not in American English, because you're unendurably slapdash as a nation - to the point I want no more of you, good or bad, essentially because the good have perverted themselves by inaction, which comes back to the same thing, the cardinal sin of Acedia, sloth, not doing the things you should have done.
Excellent presentation by Dr. Ricketts to demonstrate Faraday's insights or genius 200 yrs ago. I enjoyed it.
Just started this and already impressed by his ability in organization and handwriting..wow
I cannot even imagine the delight he must have felt in his discoveries. Keep your child like wonder alive!😁
"I once was blind but now I see". A great example of how we perceive information, and how we think. 1830's, the same time as Thoreau and Emerson...
I think.
Actually, when Faraday presented the book of notes to Humphrey Davy, there was no job opening. But the following year when Davy's assistant left, Davy remembered the book he had received from Faraday and offered him the position.
Visualizing magnetic fields was always confusing to me because of all the little windings in the DC motors I would play around with as a child. There's so much happening inside of the 'modern' motors.
Great presentation!
Peace
Think circuit as flow.
Good lecture hindered by poorly produced experiments.
The techies also really should have adjusted his mic to stop us hearing his nasal breathing. Really distracting. And he skipped so much interesting detail - like he couldn’t wait to finish and go home; seemed impatient with his volunteers too.
Poorly produced lecture too. He took "next slide please" to a new exasperating extreme.
Yes -such a shame. It isnt that difficult to produce decent demo equipment that gives predictable results. Especially when doing it for the RI !!
Really was embarrassing to see him trying to get poorly produced demos to work - then giving half hearted apologies to his audience when they didn't work
I think it was poorly planned, poorly rehearsed -and when it went wrong - he had nowhere to turn. ( apart from "turning the next slide2)
And as for the disguised recording of "celebrating 200 years of the electric motor etc" - who the heck thought that was a good idea ??.
A good lecture but I doubt if it did true justice to MF.
this was a nice discussion and demonstration. i worked with electricity my whole life, in my early days as a radio transmitter repairman in the u.s. air force and then as a lineman for a local municipal power company for 40+ years. i knew of faraday but mostly as a value of capacitance. it was a bit of a refresher on the early rudimentary basics of electricity. sometimes one forgets and then remembers about how much one has learned, known and experienced in life. thnx.
Thank you Dr.Ricketts for sharing the environment where the invention happened
I became a fan of Michael Faraday when I was grade 8 (14 yrs old) I still like his physics.
So very interested and entertaining. I spent 50 years in the electrical field and familiar with Faraday. I didn't know much about his early work. Thank you very much.
Fascinating, Faraday sent hardware to others, surely a first for "open source hardware". And his thought process unconstrained by a proscribed, taught, well trodden path.
I liked the story very much. But I was horrified by the ill- prepared experiments and the fact that he was actually touching these precious books.
It was tragic, i feel like it boiled down to self confidence and in some part ill preparation. Oh well, it was informative, if a slog. Presenter seems well intentioned and informed, but might have bitten off more than he can chew.
I love Michael Faraday's story. Very inspirational!
If everyone in the factories took as many safety precautions as you did for every slightly hazardous job.. nothing would ever get done. We are all fortunate that skilled labor takes the chances that they do.
And indeed -there was NO need for it!! - He isnt inviting members of the audience up to do anything contentious. As fa as I could see there was nothing more "dangerous" than a 9V pp3 battery !!
It almost sounds as though you are on the Board of such a company and thinking about cutting expenses at the risk of your employees? But if so, reconsider. Today’s skilled laborers have unprecedented access to legal recourse. And don’t put your comment in company correspondence - it will end up in some clever attorney’s brief and triple the punitive damages. lol. Of course, you may have a different reason for posting this. If you don’t mind, what is that reason? Respect, Jeff🙂
I was on the edge of my seat.
This is crazy good storytelling.
Instead of Mercury, non-toxic Gallium metal heated to above its melting point of 29C may be used.
"The Structure of Scientific Revolution" by T.S. Kuhns beautifully describes the paradigm shift. You see the world one way yet anomalies appear. To answer the reason for them you need to see it a different way and when you do; the world changes.
I watch a lot of lectures of that kind, as an electronics technician, but I find this one having poorly made experimental
devices to prove Faraday's observations and kind of messy presentation of the progression of his thoughts.
On the other side I enjoyed the displayed pages of that marvelous historic book. But it's still enjoyable for history
of science lovers.
Truly incredible and educational. The voice demo was eye-opening. Faraday was really something.
The great INVENTOR, MICHAEL FARADAY !
Michael Faraday was just Genius. And I am an electrical Engineer. I can appreciate his brilliant mind.
a brilliant scientist, but sadly his theories weren't originally accepted amongst his peers. Faraday, although a great experimental scientist, wasn't a mathematician, so was unable to prove his theories regarding electrical/magnetic fields. fortunately, years later, he met and befriended the equally brilliant, mathematician, James Clerk Maxwell, who was able to formulate all of Faraday's experimental work & prove him right
@@johncarlisle6865
James Clarke Maxwell, I place him next to Sir Isaac Newton. He opened the door of modern science.
Genius, no other word for this great mind & personality. We learned Electromagnetic Waves & Radiating System in college. It amazed me.
@@amritpatel3794 he's not known as the Scottish Einstein for nothing, & yet sadly, very few people outside of the science/electrical engineering realm have actually heard of him & that includes Scottish people
@@johncarlisle6865
I saw the video on RUclips. Even common Scotish can not recognized his statue in a middle of the town. So sad.
He died too early.
@@johncarlisle6865
My best friend, college colleague, started a company in India. And he kept his company's name, Maxwell Automation, in honour of James Clark Maxwell.
Interesting Michael Faraday's process. As an inventor myself, I'm particularly weak in observational skills. Not so, for Michael. However research is important and I agree that an independent approach can yield good results. I've invented pumps, engines, direct upwind prop/windmill yachts, XRAY hologram to visible light process, heat to electricity surface and written my own software, designed circuit boards, PCBs and 3D objects. The tools we have today are fantastic as are our research resources. There are people who can achieve well beyond me academically but at the age of 11 I decided to be an inventor and I expanded my mind and skills in that direction. As with Michael Faraday looking at the interaction between electricity and magnetism, food for an inventor consists of mental challenges and appropriate building blocks to achieve solutions for those challenges. Understanding practical physics and bringing it into every day life is important. Learning about other forces, prior art, other technologies. For example you've glossed over electrostatic repulsion of light charges, there's been no scope for photon powered motors, piezoelectricity or a myriad of other effects but they all are inventor food. Another of my inventions, reinvented by a guy who uses an effect i thought up in my early 20's, piezoelectric motors. Using waves of electrically generated deformation to slowly rotate a shaft or move a linear actuator. Some of us are brilliant at those initial sparks of an idea but lack the narrow minded focus to refine only one invention when others are also tantalizingly distracting.
A part of our future forays into inventing relies on extending our physics perceptions beyond our human constraints. Above and beyond the visible rainbow frequencies, sound above and beyond our own hearing, forces our bodies have poor sensitivity to. Expanding our understanding of Scent- Luca Turin's genius exposed in his TED talk on scent is a fantastic start. Understanding not only inter-mitochondrial communications, but also how those communications impact our own nervous system. As fungi have been observed to solve mazes, it is naïve to think that our DNA and our mitochondria are not intertwined through the evolution over the millennia in ways exceeding the Krebs cycle alone. My intuition tells me that instincts are passed through the mitochondria rather than our human DNA. The potential for cellular memory storage escalates the possibilities for recall-Contemplate the book "The holographic paradigm" with this in mind. We are walking, talking biological bipedal symbiotic communities with all the arrogance of humans thinking we are something special in the same way as we rejoice in a national sports win, taking vicarious pleasure in other's successes, when it is only as a world community that we achieve those human things that we rejoice in. Animals, mushrooms. Symbiotic protein. We are no different.
Watching this guy faff about with his clumbsy demos didn't really do Faraday's genius justice.
Always love watching the lectures. Thank you.
You mentioned that he started out in the publishing industry and became one of the greatest scientific minds of his age it sounds an awful lot like another publisher from America who did the same thing Benjamin Franklin!
Nice show for those present - shame some of the demos were over before the cameras could catch up!
This is a very good lecture. All I want to do is devote the rest of my life to overcoming human disabilities.
Had no clue he built a motor which worked with the earths magnetic lines of force field. Didn't even have a clue it was possible. I keep learning thankyou RI!
Great demonstration and lecture about Michael Faraday and the process of innovation. Thank you so much for this and have a phenomenal day.
A brilliant lecture and demonstration, so informative...
There is however one major point missing...
What made the difference, only hinted to in this video, is Faraday's theoretical contribution, which I feel is no less critical than his experimental contribution, and the former led directly to the latter. Faraday was indeed not using mathematics, but he had a genius imagination of the kind Newton and Einstein had: Faraday could visualize the electric and magnetic fields in his mind's eye, and he did thousands of thought experiments before discovering his physical experiments. I am sure he was dreaming much of these fields at night. While hearing this lecture, I stopped before any demo and visualized the fields in my mind, arriving exactly to the shown results. For me today it is easy: What I know of the fields today is taught in basic physics classes and is exactly the refined sum of Faraday's intuition expressed by later mathematicians in the language of mathematics.
Faraday realized that the fields are independent entities and are the major players - not the charges, currents, or bar magnets. Faraday could not avoid knowing a bit of Newton's way of thinking, since it was the language of science at his times, and he did invest much in learning science from encyclopedia Britannica, plus attending lectures. His insight, however, led him to realize that in electricity and magnetism we deal with something fundamentally different. Faraday's genuine insight led directly to the paradigm transition from massive particles to fields and waves. This new insight is as great as the best of what Newton ever did. Only Faraday's fields enabled electromagnetism, relativity, and quantum mechanics to be later discovered.
James Clerk Maxwell read the writing of Faraday carefully and, as he says it himself: All I had to do was just to translate Faraday's insight into mathematics. This enabled Maxwell to discover the full and complete laws of electromagnetism and deduce the existence of electromagnetic waves and then discover that visible light is an electromagnetic wave. Maxwell was the only one able to make this genius breakthrough since he internalized Faraday's new insight. Other mathematicians tried to deduce everything from Coulomb law, which looks exactly as Newton's universal gravitation law. Maxwell was the only mathematician who followed Faraday's new insight, which made all the difference and enabled electromagnetics.
In short, Faraday was a theoretical physicist as much as he was an experimental physicist. The last claim is not so apparent since he was not using mathematics. Still, his thinking was as deductive as mathematics is. Einstein is very similar to Faraday in this respect since Einstein imagined relativity first and only then used elementary mathematics to describe his special relativity. With this same imagination and insight, Einstein, rather than all other better mathematicians, was able to formulate general relativity.
In my opinion, genius imagination makes all significant breakthroughs in theoretical physics. Mathematics is no more than a language used to express it later. Physics is about understanding by insight how she behaves - the rest follows.
Dr. David Goren
I bet Faraday and all the other scientists interested in electricity would've loved to have the magnets that we have available today
Yes… innovation, shifting the way things are perceived is hard, but convincing others to embrace new ideas and back them financially is harder still.
This is beautiful! This is a fine example of how great the internet can be! Amazing thinking, great works of art, and new ideas exchanged! ❤️
Immersed in a fluid, thank you Royal Institution. Thank you, David Ricketts.
This lecture has helped me to make sense of the World. The penny has finally dropped and although it is several decades since I left school I am energised to learn more . You are a great teacher sir.
I completly agree with the fact that he was not only a scientist,I Watched some documentaries about his Life and read one of his books and I immediatly realized the same thing.He was especially a person Who understood and tried to make through physic the Natural world seeable to everyone.
Mike, I absolutely love that you include the extended model precip totals. Of course it's fantasy land but it's still fascinating to us weather nerds
Enjoyed your presentation. What a honor for you to be at RI. S/V North Star is in Ensenada, MX after 5yrs Sea of Cortez we are done.
Thank you for this lecture, owesome genius man in history
It would be great to do an animation of Faradays actual use of mercury to develop his ideas.
Mercury was used just to negate the friction. That's all.
@@twt000 and power delivery, closing the circuit.
@@jyvben1520 There was a crude mercury switch?
Great lecture and very interesting in various aspects (history of science, the cumulative process of science, technology and innovation, electricity teaching, creativity). All in less than 1 hour.
interesting fact that Benjamin Franklin who laid the very foundations of understanding electricity (charge, +/-, lightning) also started out as apprentice in book printing. Also using it as source for books he would not otherwise have had. He was also probably the first american who was made a fellow of the royal society.
He also, just on the side first used the terms positive, negative and battery for electricity. Sadly mostly reduced to the kite thing today. Which he did but not as suicidal as ususally portraied.
And another parallel: despite being a very capable businessman, never patented any invention. The lightning rod for example would have made him fantastically rich but he gave it away for free. As he did his scientific ideas and theories, so some were proven by others before himself. Like the lightning=electricity thing.
Great comment! It made me think about the headlong rush there exists today for eminence and the Nobel Prize. Giving away a prototype is the move of a REAL scientist, in the broadest and best sense. Maybe there should be a prize for advancing humanity through scientific work, not just for innovation?
I have always imagined what it would have been like if Faraday and Tesla were best friends or Brothers. We would all be flying around in our own space ships by now.
he was fortunate to meet another genius in James Clerk Maxwell, but I agree with you & wish all 3 of them could have met & put their Mega brains together
Loved the one-off demo of the motor on the earth's magnetic field!
I would love to see the breakdown of a modern electric motor and electricity generator with Faraday's principles.
Had a Lego train in early 80s with an engine that used an electric motor, powered off a big old D-cell battery.. The kids' 2000's toys had a few motors, of various torques. I would love to see how potential difference (voltage/Alesandro Volta) and current (amperage/André-Marie Ampère) affect the motion of electric motors... A fly v. an eagle...
Thanks! Love RI vids.
Faraday was a great experimentalist.
For more history on Faraday's experiments and how James Maxwell mathematized them, I highly recommend the book _Faraday, Maxwell, and the Electromagnetic Field_ , by Nancy Forbes and Basil Mahon. One of the best non-technical science books I've ever read.
Just love the insights RI lectures give. As Faraday said "beautiful" Thanks!
It seems to me that in the last experiment the rotation should have been clockwise (CW) when viewed from above. Every time it was pushed in the CCW direction, it slowed down and wanted to reverse to CW, but each time it was nudged again in the wrong direction. I'm assuming that the black wire is negative, and the red wire is positive, and the Earth's flux is pointing somewhat downward, and the current flows inward on the spokes (conventional flow is positive to negative,) or the electron flow is outward on the spokes (electron flow is negative to positive.)
Well, it certainly didn't work, though Ricketts acted as if (pretended?) it did. (ca. 53:00 to 55:00) and it DOES *seem* to work when the assistant pushes it clockwise ca. 54:00, it's uncertain, but it is clear it stops at 55:25 after Ricketts pushes it (after apparently coasting).
Might be right there, as it didn't spin very well when he did it
The weight of the solder connection on the loop may have contributed to the situation. Would have to play with it for a while.
Fleming's left-hand rule for motors says it should have turned clockwise when viewed from above. The index finger is pointed downward in the direction of the Earth's magnetic flux. The middle finger is pointed towards the center pivot point in the direction of the "conventional" current flow which is positive to negative. The thumb points in the direction of motion which in this case is clockwise. I performed the experiment myself to verify this, and it worked. The torque is extremely weak.
@@solarfluxman8810 Cool. What current and voltage did you use? (and how many turns?)
The last part about him not much of a Mathematician and no math in his notes, was hopeful to me. So many times when I study physics there is just a wall of math hiding the interesting stuff. To me it often feels like the teachers hide behind it, because they dont really understand the physics.
Agreed
Interesting Anders. I read physics and I was fortunate that I found math easy so no problem for me. However I never considered that the math could detract from the interesting stuff. Faraday, of course, showed that the math is not always needed in innovation.
I have spent a lifetime of study of electronics without using much math as I am very bad with mathematics.
I study the works of people involved in alternative energy and such and without all the math and conventional electric rules and things impeded in my brain a lot of it makes better sense.
You signed up for the wrong physics class in school. Most students take conceptual physics. It's physics without being bogged down with all the math. It has some though. What they call the class can depend on where you live. It's too bad you ended up taking you harder physics class.
I completely disagree with your assumption that the teachers hide behind the math because they don't understand the physics. I feel this way because you really need to understand the physics to understand what the math is telling you otherwise you're just looking at numbers. It also makes the math a lot harder to process in your head.
I will say that is how I felt about chemistry though. Nonstop crappy math. While I don't generally struggle with math, it certainly doesn't mean I like doing it.
@@w1swh1 They go hand in hand. Sometime the experimentalist discovers new physics, but when a theorist who understands the maths comes along, like James Clerk Maxwell in the case of electromagnetism, it gives a deeper understanding and leads to further science. In the case of electromagnetism the constancy of 'c', and ultimately Einstein's theory of relativity.
He would, of course, be Sir Michael Faraday but he turned down honors for religious reasons. He spent the last years of his working life investigating industrial disasters as he was Britains most respected scientist.
Thanks by the way for a great presentation!
Brilliant lecture. Shame alot of our kids today are wasting there time on online gaming or social media.
... wasting their time ...
Beautiful. First principles and an open mind.
Thankyou for this RI. Magic delivery about magical methods, pure magic...Imagined I was watching Micheal Faraday from within the RI theatre back in the 1820s but really on my TV , truly entertaining and profoundly mysterious
Most people don't realize that eletricity was one of the greatedt achivement of mankind, we used something invisible and yet were able to tame this "thing". Only years later, the electron was discovered. Then we discover the electric waves, semiconductors, the transistors... And now we can watch a video with a device on our hands!!!
Thank you for a wonderful presentation.
insights change everything.
Fascinating. A valuable insight into Faraday's genius.
37:40 - If you add a piece of opaque tape to the screw (like a little "flag"), it makes the rotation much easier to see.
Superb lecture
Faraday was a genius. He wrote the equations that describe electromagnetic fields which included the scalar component. Later on, the scalar componentnwas deemed unimportant and the equations were dumbed down by eliminating the scalar component. Nikola Tesla realized that was a mistake. Konstatin Meyl has further developed Maxwell's equations.
Correction, it was Actually James Clerk Maxwell, who, in 1861 included equations that incorporated a scaler component in his (in)comprehensible more than 20 equations that, with the Lorentz force Law, mathematically describe classical electromagnetism and classical optics. Formalized in 1873 as Maxwell published 'A Treatise on Electricity and Magnetism.' Oliver Heaviside studied this book and employed vector calculus to then distill Maxwell's twenty plus equations down to the four that are widely recognized by students and physicists. The Scaler components were not included in Heaviside's work, however, depending upon what one is using the equations for, that component may or may not be useful. That being said, for a thorough understanding of the nature of reality one must account for the incredible effects that scalar fields impress upon matter such as action at a distance, entanglement and other phenomena that a person who is not deeply familiar with experimental physics would dismiss as impossible, pseudoscience, magico-religious thinking and so forth. Tesla indeed had a very firm grasp on the phenomenology of scalar fields and Konstantin Meyl has amplified Tesla's work and elaborated upon his theme. In the coming years the civilian development and appropriation or rejection of technologies based upon this aspect of QED will become central to the question of what it means to be Human.
Magnificent! Many thanks for this lesson!!!
Superb lecture. Thank you
excellent lecture and demos
For the children... look around you in that famous room/theater. When Michael Faraday was entertaining royalty with his magical magnets, there was no electric light, no back screen, no camera, no microphone, no toilet paper.
The toilet paper is the key there
neither isolated copper wires, they had to isolate them with cotton, no plastic, no enamel, nor neodinium magnets, not powerful b atteries
I enjoyed the process of discovery by recreating experiments with genuine equipment used by Faraday. I only have a problem with the digital and mechanical detectors. In fact, this is (after viewing many other videos all using modern day detection equipment) what aroused my interest at the start- only to be disappointed at the end. But definitely a very interesting lecture!
These talks are super interesting. I've seen a couple and they are good.
i thought tesla created the dynamo... but damn... This guys is the greatest of them all... we all have power because of him... we jump started a few thousand years development... cant imagine a life without electricity.
Watching these lectures growing up the auditorium was always full. Now it’s half empty.
Excellent video, really enjoyed it.
Use Mercury!
That way your lecture demonstration won't be so embarrassing.
When we were kids, we played with mercury. It never harmed us because when we were done playing with it mom made us wash our hands with leaded gasoline.
It is always amazing to hear about the leaps of intuition or knowledge that lead to great (or even small) things. To me the take home message here should come at about 55:30... "he was not educated in the traditional means". This is still happening of course and it is pretty well understood even now that most kids have their creativity squashed by the present school system by the time they are about 12. Too bad the education systems of the european tradition (the only one I have any knowledge about) has not endeavoured to earn that lesson over the past 200 years. Just think where we could be by now (if Faraday's example is anything to go by) if there were more 'less educated' people that were free to pursue their creative genius...free from an education system that focuses on educating to get a job. Tesla was another genius but he was crushed by the capitalistic greed of how the system worked. Will we ever 'learn'?
It's an amazing lecture. But what I don't understand: when he demonstrates how the bent wire is supposed to go around, @32:30 doesn't that also happen with a simple "repel" action since there's a fixed axis?
This is the Royal Inst back to its best,
Fascinating. For those who enjoyed this talk like I did, I'd strongly recommend "Exploratory Experiments: Ampère, Faraday, and the Origins of Electrodynamics" (book by Friedrich Steinle and Alex Levine).
for some reason, Faraday is my favorite. Tough childhood？Pure major discovery? No, pure major discoveries. I am not worthy.
Wonderfull presentation ,one of the most important step into human history ...
I have always been interested in electricity ans magnetic forces. I thought about going to college but got married. (I have no regrets) I am now 66 and I appreciate learning new things. Thank you!