Copper's Surprising Reaction to Strong Magnets | Force Field Motion Dampening
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- čas přidán 25. 01. 2018
- In this video I experiment with Lenz's Law And Faraday's Law of Induction to generate electricity and magnetic force fields in copper. Check out my sponsor Brilliant for a really fun way to learn! www.Brilliant.org/NightHawk
To read more about Lenz & Faraday's Laws see the following links:
en.wikipedia.org/wiki/Lenz%27...
en.wikipedia.org/wiki/Faraday...
Thanks to all my Patrons for helping me make these videos! A special thanks to my top Patrons: Syniurge, Matthew Leitzke, TheBackyardScientist, Enzo Breda Lee, John Johnson, & Thibaud Peverelli! / nighthawkprojects
Thanks for watching!
At 1:37, you said "...there is no attraction, nor repulsion...". Wrong. There is attraction or repulsion, depending whether magnet goes toward copper clad or away. Copper is good conductor and magnet generates eddy current, which in turn produce exactly 'mirrored' magnetic field when magnet approaches the surface of the copper. When magnet going away from the copper, you can feel resistance because then magnetic field 'flip'. Still somewhat 'mirrored', but as a 'negative', or in reverse. When magnet going toward copper, north produces eddy current that produces north pole in copper. When you pull magnet from the surface, north pole produces south pole - which attract or as you said - make a feeling of the resistance. When stationary, no eddy current.
Yep, you're right. I got that part wrong in the video.
Milan Karakas, Thank you so much for your informative comment. Eddy currents are spectacular. As a boatman, I have used counter-revolving currents to move my boat upstream right alongside the main current flowing in the opposite direction. This is done by employing the counter revolutionary vortexes that run along the edge of the main flow. These forces are often ignored in modern technology. Blessing to you.
Milan Karakas good
+Ken Bellchambers, I'm sorry, I didn't get, what you did? Could you please explain it?
LichtTempler, Along the edge of a fast moving stream of water there are a series of counter-rotating whirlpools of water. These little vortexes as they revolve, form a pulling force opposite to the main flow of the river. The phenomenon happens when the side of the stern of the boat is kept against the edge of the main stream. It will propel the canoe, for example, in the opposite direction of the main flow.
Every physics related thing is fascinating utill it is added to our syllabus.
Until the lion learns how to write every story will glorify the hunter
@@psabmybt3521 unrelated but fascinating.
Hahaha haha!!!
ERP VIDEO wow that's an excellent one.
Until calculus is added
So nice to have the video immediately start with the good stuff.
Repent to Jesus Christ!
“For in the gospel the righteousness of God is revealed-a righteousness that is by faith from first to last, just as it is written: “The righteous will live by faith.””
Romans 1:17 NIV
B
@@jesusislord6545 wha?
Hacker man
unlike your stuff
You mean two unskippable ads?
I just tried this at home and it feels like I'm dragging the magnet through molasses. Super cool!
what dude you use copper wire?
The biggest question I have with this is, What can be done with it?
E=MC2 is a joke! OK let's get this correct !! #1 The only reason radio waves and AC current travel out in space and down a wire is because of the "CENTER " of a magnetic field. (The "B" field), The North and South poles are the weakest part of a magnet !! Just like Tesla said, you got to look at things you can't see !! At the center of a magnet is anti gravity, (just tap the center on any glass or plastic and it will loose weight), The center can repel water if vibrated at the correct frequency, If you vibrate the "B" field into granite rock it will become soft and you would need copper tools to work on same , you don't want to disrupt the magnetic (B")field ) with other iron. Once you understand the "B" field of a magnet and how it relates to the entire universe we live in, you will then understand what Tesla was telling everyone "LOOK FOR WHAT YOU CANNOT SEE"" .I believe the pyramids were inter galactic communications and transportation systems. Stone Henge and Gobekli Tepe , power plants. Take a look at Coral Castle Florida on CZcams and you will see a similar pilar. I believe these horizontal pillars were oscillators that would provide excitation for many things from crops in the field to anti gravity FYI: If a UFO fly's to close to you the "B" field that provides the anti gravity ("B")Field). will cancel out your power source !!!! E=MC2 is at best just a joke!!!
E=MC2 is a joke! OK let's get this correct !! #1 The only reason radio waves and AC current travel out in space and down a wire is because of the "CENTER " of a magnetic field. (The "B" field), The North and South poles are the weakest part of a magnet !! Just like Tesla said, you got to look at things you can't see !! At the center of a magnet is anti gravity, (just tap the center on any glass or plastic and it will loose weight), The center can repel water if vibrated at the correct frequency, If you vibrate the "B" field into granite rock it will become soft and you would need copper tools to work on same , you don't want to disrupt the magnetic (B")field ) with other iron. Once you understand the "B" field of a magnet and how it relates to the entire universe we live in, you will then understand what Tesla was telling everyone "LOOK FOR WHAT YOU CANNOT SEE"" .I believe the pyramids were inter galactic communications and transportation systems. Stone Henge and Gobekli Tepe , power plants. Take a look at Coral Castle Florida on CZcams and you will see a similar pilar. I believe these horizontal pillars were oscillators that would provide excitation for many things from crops in the field to anti gravity FYI: If a UFO fly's to close to you the "B" field that provides the anti gravity ("B")Field). will cancel out your power source !!!! E=MC2 is at best just a joke!!!
With the copper wires that sage by the way every time the Magnum pass is it it's age it puts upon the wire with it turns the limestone
Great film. I'm sharing it with my 7-year-old grandson, who spontaneously shared his interest in the subjects of magnetism and electricity.
The young ones … the neeer incarnates - will teach us, if we let them.
They know heaps … and, they did not read it in a book …
They came in KNOWING.
We live in a 100% magnetic universe..... it's that simple!! The center of a magnet is by far the most powerful part!!! that's where you will find anti gravity and most everything else. STUPID HUMANS!! We went backwards in the Iron age!! the center of a magnet is where we belong after all that's what we are all configured with..FACT!
Please review the works at "CORAL CASTLE, Florida. (CZcams), He would "VIBRATE" ,, not oscillate the granite at a resonant frequency to the type stone he was working with. Granit has allot of magnetic properties given it's make up... You just need to vibrate at the correct freq. and it will become workable. Keep in mind we are talking about vibrating only the "B" field of a magnet into the rock!!! You will note at Coral Castle he also had a horizontal stone , similar to Stone Henge... All his magnetic generators were in the repel mode to maximize the "B" field.. SIMILAR TO THOSE Shown ON THE PYRAMIDS OF EGYPT.. FACT!!, THINK about it THAT'S exactly why they used copper tools!!!! You must use copper tools and any iron would totally dispute the field. Quantum Math is total B.S. E=MC2 is also total BS... E=MD. (Magnetic density). Thanks Vincenzo.. Please use your brain!! If your professor gives you any flack, have him explain the speed of magnetism. It's instantaneous.
That's how they used the pyramids as transportation devices, inter Galaxy type transportation that's exactly why they were 8 sides to create a perfect hologram from earths magnetic field that could be used to connect interglacially
I’m 69 and that’s the first time I saw a magnet interacting with copper in that way. Very interesting, and thanks to you.
nice
I knew someone would respond with that.
I got you beat, I'm just 2 months away from 71, and yes, this is very interesting.
In the 60th switching relays had different copper slugs on them for timing.
Nice
I think I've just found a way to make my toilet seat shut quietly
Copper toilet bowl, magnetic seat, piercings, sounds fun!
🤣🤣 thanks for the advice
@@DenisKz bro wear the hell are your piercings if magnetic toilet is an issue
@@ex5080 do u really want to know?
@@ex5080 Google "Prince Albert"..
2:21 I have never thought to have my students actually connect an open inductor like that before! I also love how you used an led to show the emf generation. I tried it with a small regular bulb but it was no use; the emf generated seems to be only around the hundred mV range. So, I definitely need to buy some small leds - and flat copper plates !
I was not a great physics or chemistry student, despite enjoying both principles. This lesson would’ve gotten me excited about learning.
This is a great example of how school could be so interesting and educational if they presented it with fun stuff like this.
they didnt want us excited about learning at an early age....JD Rockefeller quoted he wanted a nation of workers not thinkers when he started the education system, and they knew more than this already back then.
@Connor Winn
Magnets on this planet are just sympathetic magnets of the earth's double torus magnetosphere.
We live in an electric universe powered by and held in position between the double torus's of galaxy, sun, planets magnetosphere.
Precious metals are magnetic ISOLATORS of the double torus magnetosphere.
Earth's magnetosphere is powered by the Sun's magnetosphere which in turn is powered regulated by it's position relative the galaxies Bulge & nucleus.
The GALACTIC Milankovitch cycles cause our cliamte trends and cataclysms.
Eccentricity being the 235,000 year rotation of the galactic bulge. Antikythera device was a predictor. We are at year 201,000.
Obliquity is the climate trends between aphelion and perihelion with the galactic bulge. every 60,000 years we are 34,000 years away from perihelion with the galactic bulge.
26,000 year Precession of the equinoxes or Magnetic north, eclipsing the nucleus of the galaxies magnetosphere causes an exponential rise in magnetic/gravitational energy for the 1,000 years it takes to eclipse the galactic plane equator.
We started crossing in 2012 like the Mayans predicted and magnetic north shows. We are at 24 degrees west declination increasing towards the centre of the double torus in 500 years. when it will switch to 24.5 degrees East delineation decreasing for 6,000 years.
Jesus warned us about these the climate change END TIMES with the book of REVELATION & the cause with the 7 north stars of the PRECESSION of the Alpha Omega equinoxes he held in his hand.
These are just the birthing pains. Mother Earth's WATER won't break until the 2033 conjunction of Mercury-Venus-Earth causes the MOON to pull the earth's increased magnetosphere & oceans out and around the planet east to west 800 mph at the equator as in the days of Noah.
We are not Gods. We are not causing the Sun's magnetosphere energy output to increase.
The PRECESSION of the vernal autumnal equinoxes is.
Jesus unites us & warned us all.
@@jessecrump7594
BLOOD** R’fellers & Rotchilds
Their time of heinous control is swiftly coming to an end.
🥳
@@snowyowl6892 you think so? Trump.is leading the way for them all...all.in it together.
I am a retired engineer and science teacher, and thoroughly enjoyed your demonstrations. I had never seen the magnet-copper wire coil demo before, and it is a great one.....
I hope by science you mean geology.
I am a scrapper and I bet those plates were not reasonably priced
Roy Bunnell You can have a similar effect with a piece of copper pipe. Cut a short section out to act as a window - as the magnet falls through the pipe, you can watch it slowly cross the window.
It is Atomic Physics. It works because the Universe is Atomic. To understand Atomics is to know the universe. This is why I am good at it. I find it interesting how one idea can have some many results and applications. Mind blown yet?
Is not the copper plate a closed circuit - did you see any power generated from that. Remember he did say it was difficult.
As other people have said, this also works with aluminum. I have seen magnetic brakes used on a land speed record car that had aluminum wheels, not meant to slow the car from top speed, but to slow it down once the parachutes have been used. It was very ingenious. They had a ring of neodymium magnets on a hydraulically controlled plate.
The phenomenon is present for any conductor, but the effect is reduced as the conductor chosen is less and less conductive. A silver plate would work better than a copper plate, which works better than aluminum, which works better than zinc, which is better than titanium, etc.
We live in a 100% magnetic universe..... it's that simple!! The center of a magnet is by far the most powerful part!!! that's where you will find anti gravity and most everything else. STUPID HUMANS!! We went backwards in the Iron age!! the center of a magnet is where we belong after all that's what we are all configured with..FACT!
Please review the works at "CORAL CASTLE, Florida. (CZcams), He would "VIBRATE" ,, not oscillate the granite at a resonant frequency to the type stone he was working with. Granit has allot of magnetic properties given it's make up... You just need to vibrate at the correct freq. and it will become workable. Keep in mind we are talking about vibrating only the "B" field of a magnet into the rock!!! You will note at Coral Castle he also had a horizontal stone , similar to Stone Henge... All his magnetic generators were in the repel mode to maximize the "B" field.. SIMILAR TO THOSE Shown ON THE PYRAMIDS OF EGYPT.. FACT!!, THINK about it THAT'S exactly why they used copper tools!!!! You must use copper tools and any iron would totally dispute the field. Quantum Math is total B.S. E=MC2 is also total BS... E=MD. (Magnetic density). Thanks Vincenzo.. Please use your brain!! If your professor gives you any flack, have him explain the speed of magnetism. It's instantaneous.
That's how they used the pyramids as transportation devices, inter Galaxy type transportation that's exactly why they were 8 sides to create a perfect hologram from earths magnetic field that could be used to connect interglacially
made one years ago for a small engine dyno. few design flaws but it did work. up to about 20hp, any more and i couldnt get the heat away.
some brassy unknown material disc from the scrapyard, bunch of neo magnets recessed into very shallow pockets in a steel plate from the back of a speaker, reaction arm on a set of scales, and a lead screw to adjust the magnet gap. the disc spun, coupled to the crank.
have to complete the circuit at the back of the magnets. gives a nice focused field out the front where its needed. most people tend to miss that point...
obviously deep pockets just short each magnet out to itself :D
the disc gets HOT. real freaking hot. every watt of power the dyno is registering is dissipating as heat. could easily stall a 20hp, with power to spare, but the disc was smoking, starting to glow, despite the water spray... design flaws : )
and neos fail rapidly at 70C+. lol. ferrite will take 150C or so, and alnico will tolerate redhot, but is a bit pathetic... and expensive...
i brushed the dust off it lately, revisiting the idea. it promises a certain advantage over any thing else in the application of certain "renewables"...
get carried away with this idea of "electrons" and forget that they need something to pump them, just like hydraulic fluid in a bottle is basically useless but will give you gangrene at 20,000psi from a leak, or move a large rock in an excavator bucket... and whilst hydraulic fluid happily sits in a bottle, electrons tend to dislike each other and refuse to congregate in large numbers unless beaten with a large stick...
this is hands down one of the best videos but he did miss the bit with the coil, open circuit, shorted, LED... a decade resistance box would have shown something even more interesting, along with some maths relating to the mass of the magnet and gravity... EFFICIENCY. or, load matching, and how it relates to efficiency. where is the work done, how does it relate to the mass of copper versus the magnet strength, its mass, teh resistance of the copper wire as its wound, blah blah...
where is the work done in a generator, where is the load, and what are their limitations?
WOW! That was awesome! You are excellent at not only setting curiosity ablaze but giving it the endurance to either try for yourself or look into more info about the subject. Thank you!
i was just thinking about this video, and i think its possible to polish the surface of steel using magnetic breaking. the traveling fair where i live has a ride that takes you up about 100 feet on a tower and drops you. The way the ride stops is electromagnetic breaks that fit around metal fins. from what i remember, there were 4 metal fins that were at least a foot long and probably 8 inches wide. likely, they were bigger as they were far up on the ride. the part of the ride with the seats that falls rides on a square piece of scaffold with wheels to keep it aligned, and it has 8 electro magnets, one for each side of the fin. the fins are attached to the outter framework of the ride, so force applied to the fins sits on cement pads placed on the ground. the failsafe is a massive pile of recycled tires under the seats. if the magnetic breaking fails, you literally just land on a huge pile of rubber.
The interesting thing to me is that the fins were POLISHED. They stood out as extremely polished to a perfect mirror finish, and the polished part of the fins was only where the breaks run over them. It has always made me wonder if some kind of surface stripping happens when you are breaking such a massive load over a fairly short distance. also it freaked me out that the ride didn't use permanent magnets and only have a pile of tires as a failsafe.
"The interesting thing to me is that the fins were POLISHED. They stood out as extremely polished to a perfect mirror finish, and the polished part of the fins was only where the breaks run over them. It has always made me wonder if some kind of surface stripping happens when you are breaking such a massive load over a fairly short distance. "
Very interesting! Thanks for sharing your observations.
Superb demonstrations. Prior to this I'd only observed the effect using a Cu tube and small magnet dropped through. These are far more visually interesting.
E=MC2 is a joke! OK let's get this correct !! #1 The only reason radio waves and AC current travel out in space and down a wire is because of the "CENTER " of a magnetic field. (The "B" field), The North and South poles are the weakest part of a magnet !! Just like Tesla said, you got to look at things you can't see !! At the center of a magnet is anti gravity, (just tap the center on any glass or plastic and it will loose weight), The center can repel water if vibrated at the correct frequency, If you vibrate the "B" field into granite rock it will become soft and you would need copper tools to work on same , you don't want to disrupt the magnetic (B")field ) with other iron. Once you understand the "B" field of a magnet and how it relates to the entire universe we live in, you will then understand what Tesla was telling everyone "LOOK FOR WHAT YOU CANNOT SEE"" .I believe the pyramids were inter galactic communications and transportation systems. Stone Henge and Gobekli Tepe , power plants. Take a look at Coral Castle Florida on CZcams and you will see a similar pilar. I believe these horizontal pillars were oscillators that would provide excitation for many things from crops in the field to anti gravity FYI: If a UFO fly's to close to you the "B" field that provides the anti gravity ("B")Field). will cancel out your power source !!!! E=MC2 is at best just a joke!!!
I'm a 5th grade science teacher and we just started with physical sciences. I can't wait to show this video and let them recreate it in a lab
Mr Hardaway I wish I had such a cool teacher!
Georg Friedrich Händel same
You should show your students the effects of magnetism & electricity on other things too.
Did ya know if you move a N52 magnet under a saucer with a thin film of water in it, you can see visual distortions in the reflections on the surface as it passes. You might wanna look up the "water bridge" experiments as well as show them some High Voltage Discharge experiments like the ones done by YT users Mr2Tuff2 & diveflyfish.
There's the easy way to do something and your name
You should attach a voltage meter to your setup, and show them how a change in magnetic flux, generates electricity.
Absolutely beautiful and stunning experiments, camerawork, editing and narrating!
I like how he used the copper plate as a cushion for the wound wire demo, instead of like a pillow or something.
Frank Belton-Brown ---> You caught that too! Not many people did OR they didn't comment on it. :D
strongmagnets, copper plates, outro with a parrot.... Thats to much awsomeness in one video loved it
I was an MRI Field Engineer before I retired and we often had fun with the Lenz effect. When MRI's were quite rare, there was always a drawer full of 1" steel washers on bits of string, so that visitors could 'see' the strength of the magnet. We soon got fed up with having to partially dismantle the brutes to get these out when, inevitably, some muppet dropped their washer and it vanished into the bore. We found a spectacular way of demonstrating the strength of the field, safely, by use of aluminium plates, about a foot long, eight inches wide and as thick as we could find - usually about 4mm. (Sorry to mix standards, but that is perfectly logical to me!)
When the user had a bunch of students or sometimes newbie doctors and we were on the premises, they would always ask us to "...do the trick..." Having first demonstrated that aluminium is not magnetic in any way, you place the plate upright on its short dimension, on the end of the patient table furthest from the bore of the magnet. Then you ask them what would happen if I let go. They all look round, because it's a trick question, right? It''l fall over.
Of course, as soon as you let go, it falls over and they all look relieved. Then you move the plate as close as you can to the mouth of the bore (disguising the fact that you can feel the Lenz effect working against you.) The you ask, what will happen now, given that it is non magnetic? They look at each other again, this time not so sure, but 99 times out of a hundred they've never heard of the Lenz effect and 'shorted turns'. When you let go and it barely moves (sometimes you have to give it a bit of a shove to get it moving) they are astonished and mystified in equal measure. It falls very, very slowly, although it does accelerate slightly. It's a great trick and a whole lot more spectacular ( and safer) than the old steel washers!
how do i get in touch with you
Looks out of this world 😁
The way swinging magnet comes to a stop is amazing...
Still a great set of footage with copper and magnetic fields. Love it! I have used this for years to show off the science...
Fun fact: coin acceptors use a coil in similar fashion to detect what kind of coin was dropped in it, by generating eddy currents and then measuring near field effect on the coil.
Oh I always think there was a tooth fairy in every vending machine collecting the coins people put in...
and all the coins they had they would go at night to exchange a coin for a tooth...
what they did with it i'll never know but now with your comment....
I can scratch this childhood belief right after santa clause and jesus christ off my list.
Older, pre-electronic coin sorters used magnets to slow down 'slugs', steel fake coins.
Coins rolled down a short ramp, magnets on either side.
Eddy-current drag slowed down slugs, regular coins went through at full speed.
At the end of the ramp was a little jump; fast coins jumped a gap, slow coins fell into the gap.
They had trouble with Canadian coins, their nickle content made them somewhat magnetic and they jammed the ramp.
@@pirobot668beta thank you for that info. I could see in my mind's eye the inside of the vending machine and the coins rolling about. So cool to find this stuff on CZcams. Blessings!
Great comment dude. Very interesting.
Shush... and don't tell them about the IR and UV and magnetic detectors for banknotes...
If you thought I was going to sit through the ads at the end just to watch your cute parrot, you were totally right.
This is something I learnt as an electrical apprentice not long ago. Very cool.
This is so fascinating so many different effects and reactions, Thank you for this!
No way! That"s awesome! I've known about these principals for a long time but never seen it demonstrated this well. 10/10! great job Ben! Also, maybe put some links in the description for the magnets and the copper plates? Thanks!
Everything in this video was amazing, but the part that surprised me the most was the bit where you rotated that cube from like 2 feet away. That's the farthest distance I've ever seen *tangible* magnetic effects (aside from compasses), considering that usually, magnets only overcome friction when they're a few inches apart.
ya good piont. i thought the same thing too. that was extremely far away and perfectly accurate, i wonder if he could go even further
@@isaacb.4324 or it's a scam.
@@murrijuana2842 magnets are a scam?
That part really confused me. Does it have anything to do with the copper or was it just that his magnet really is that super powered?
That's a good tool for "magicians" to use in levitation tricks.
Electrical theory is every single day at my job so this principle is nowhere near new but it is cool to see how others explain things and compare them to how I describe principles to newer folks to the trade. Excellent video my friend
اريد التواصل معك
my daughter is teaching a class on science so i loaned her some strong magnets from large speakers and a homemade electromagnet and I made a stack of disk magnets with holes stack on a wooden dowl with repulsing fields so the magnets float on top of each other.
I have seen some other videos of using copper as a brake but not in demonstrations like this i will have to try some of these and make some new displays for her.
I have been waiting for you to do a video like this and if I recall even suggested making a Faraday generator. This video gives me goosebumps. Absolutely love it.
Really well explained. Thanks for taking time to make this. You sir, just earned a like & subscription.
This makes me incredibly happy to watch. Thank you for the video.
This is a great video, it would be good to see a video on you explaining how a speakers voice coil works in detail and maybe a coil inductor on a tweeter in a crossover.
This is one of the better videos I've seen demonstrating and explaining this.
This is not being sycophantic. The magnet passing through the coil, and the movement converting to light, is the best demonstration of electrical generation I've seen. And diesel generators with a rotor (magnet) turning inside a stator (coil) were part of my job in the 1990s. Absoutely made my day, the quality of presentation nowadays.
Don't worry, no one will accuse you of sycophancy
Wow! Thank you so much for this really cool experiment! It definitely had me "wowing" during the magnet dropping toward the copper plate. The slow motion dampening was really cool to see in action! I've been curious about electricity my whole life as far as I can remember since being inspired by Mr. Wizard from back in the 1980's on Nickolodeon. This really gave me the child like curiosity that I miss. I would describe it as the modern day tinkerer and makers crowd. Thanks again and keep up the good work!
E=MC2 is a joke! OK let's get this correct !! #1 The only reason radio waves and AC current travel out in space and down a wire is because of the "CENTER " of a magnetic field. (The "B" field), The North and South poles are the weakest part of a magnet !! Just like Tesla said, you got to look at things you can't see !! At the center of a magnet is anti gravity, (just tap the center on any glass or plastic and it will loose weight), The center can repel water if vibrated at the correct frequency, If you vibrate the "B" field into granite rock it will become soft and you would need copper tools to work on same , you don't want to disrupt the magnetic (B")field ) with other iron. Once you understand the "B" field of a magnet and how it relates to the entire universe we live in, you will then understand what Tesla was telling everyone "LOOK FOR WHAT YOU CANNOT SEE"" .I believe the pyramids were inter galactic communications and transportation systems. Stone Henge and Gobekli Tepe , power plants. Take a look at Coral Castle Florida on CZcams and you will see a similar pilar. I believe these horizontal pillars were oscillators that would provide excitation for many things from crops in the field to anti gravity FYI: If a UFO fly's to close to you the "B" field that provides the anti gravity ("B")Field). will cancel out your power source !!!! E=MC2 is at best just a joke!!!
Well I've said it before but I'll say it again. Your channel is such a great educational resource!
I already knew a little about this, (not much) but you expanded my knowledge in a way that was both easy to understand, interesting, and visually stunning.
E=MC2 is a joke! OK let's get this correct !! #1 The only reason radio waves and AC current travel out in space and down a wire is because of the "CENTER " of a magnetic field. (The "B" field), The North and South poles are the weakest part of a magnet !! Just like Tesla said, you got to look at things you can't see !! At the center of a magnet is anti gravity, (just tap the center on any glass or plastic and it will loose weight), The center can repel water if vibrated at the correct frequency, If you vibrate the "B" field into granite rock it will become soft and you would need copper tools to work on same , you don't want to disrupt the magnetic (B")field ) with other iron. Once you understand the "B" field of a magnet and how it relates to the entire universe we live in, you will then understand what Tesla was telling everyone "LOOK FOR WHAT YOU CANNOT SEE"" .I believe the pyramids were inter galactic communications and transportation systems. Stone Henge and Gobekli Tepe , power plants. Take a look at Coral Castle Florida on CZcams and you will see a similar pilar. I believe these horizontal pillars were oscillators that would provide excitation for many things from crops in the field to anti gravity FYI: If a UFO fly's to close to you the "B" field that provides the anti gravity ("B")Field). will cancel out your power source !!!! E=MC2 is at best just a joke!!!
I used to repair aircraft gyro instruments. Some types of gyro instruments use magnetic damping to dampen gyro gimbal oscillations. Also, some bait-casting fishing reels use magnetic damping to control backlash.
MrCharlieCom I
MrCharlieCom 8
4:38 Elevators could have that system as a back up too. Lenz's law is so cool 😊
Great video.
That was a fantastic demonstration, and I have a masters degree in science!
As a child I enjoyed a TV program titled Watch Mr. Wizard, where Don Herbert, aka Mr. Wizard, would demonstrate themed scientific principles in ways that excited my imagination. Today you did the same, 60 years later. Bravo!
I also grew up watching it, they actually brought it back out several years ago with some newer experiments, Don was much older then.
I wonder what ever became of his young assistants from the original shows.
@@chucksmalfus9623 Hi Chuck. I hope they maintained their interest, but there was so much growing up to do in the 1960s. I'll speak blasphemy and admit that I'm happy to be old and on the way out of this world. This is not the world that I would have made.
I am a ride tech, at a well-known theme park. Our coaster cars utilize a large copper plate, for braking. As the plate (on the bottom of the car) moves through magnets (positioned on the track), the train slows down.
The plates gets pretty hot, by the end of the operational day. Honestly, I never thought about measuring the temperature. I figure it’s around 130 to 140 degrees Fahrenheit. It takes a couple of hours, for the plates, to cool down completely.
thats why some HiFi/PA speakers have copper pole pieces. iin use, the internal coil creates eddy currents, so a cooper piece attenuates that current ,to keep linear response (but make some heat, so the back of the magnetic core has an opening for ventilation)
I wonder if somebody has found a way to harness that heat and use the energy.
@@jakemccoy Probably not. I know that 140 F sounds hot, but as far as using it to generate electricity, it’s nowhere near hot enough, even boilers just used for heating generate heat in 300-500 F range. Best you might be able to do, would be to use the heat to warm a few rooms in the winter(even then, those room would have to be close by). But then you’d have to go to the trouble of installing some sort of heat transfer system and a backup system for when those plates aren’t enough or aren’t in use. It’s a lot of money and upkeep for a marginal improvement in efficiency.
@@CJ-442 I was not thinking that extravagant. I was thinking more simple, like maybe light up some LED's on the coaster with the otherwise wasted energy.
@@jakemccoy If you’re goal is to reduce heating on those copper plates, then the answer is no. Magnetic breaking works by converting the kinetic energy of the moving magnet into eddy currents within a conductor, which is then converted to heat. Connecting a “load” (like those LEDs) to the plates would create a complete circuit and greatly reduce the eddy currents in the plate, and therefore, its breaking power as well. You saw that in the video when he dropped that magnet through the coil with the light connected. It generated electricity, but the magnet barely slowed down at all. That’s why I suggested using the heat transfer system to heat a room. That heat has to be generated for the breaks to work, so you may as well try to use that heat for something useful.
If you’re asking if it’s possible to use the coaster’s movement over those plate to generate useable electricity, then the answer is maybe. It’s not impossible to do, but you’d basically have to design a coaster with having that dual breaking/electrical generation purpose in mind. You’d need some sort of system installed to ensure that only a little bit of the electricity was taken from the eddy currents; that way the breaks still work. Also, anything that you’d hook up to this system (LEDs, speakers, etc.) would only work while the coaster was moving over the plates. When it’s anywhere else or completely stopped, electricity stops being generated and the “load” is no longer powered. Again, a lot of work, money, and upkeep for a marginal improvement in efficiency.
Not hounding on you or saying it’s wrong to try to come up with new ideas. I just deal with electrical systems a lot in my line of work, and these are the things that I have to think about. Introducing changes or new purposes into a system also introduces the possibility for new problems, so you have to take those problems into account. Is it worth having one system that does 2 things if it only works 75% the time? Or is it better to have 2 systems that do 1 thing each and they both function 99.9999% of the time? The answer is that it just depends on what you’re doing. Using waste heat generated by flushing the toilets to warm a maintenance shed in the winter is a lot less important than having breaks that function properly.
I remember when you were just a fellow pyro and I'm happy to see how you're branching out and growing your scope and channel.
For a future project, put differant magnets in a glass plasma ball. Also with silver, gold, copper, nickel, and other metals.
I am SO glad I came here, this is amazing, learnt a few things, a few went over my head but oh boy was that satisfying to watch.
E=MC2 is a joke! OK let's get this correct !! #1 The only reason radio waves and AC current travel out in space and down a wire is because of the "CENTER " of a magnetic field. (The "B" field), The North and South poles are the weakest part of a magnet !! Just like Tesla said, you got to look at things you can't see !! At the center of a magnet is anti gravity, (just tap the center on any glass or plastic and it will loose weight), The center can repel water if vibrated at the correct frequency, If you vibrate the "B" field into granite rock it will become soft and you would need copper tools to work on same , you don't want to disrupt the magnetic (B")field ) with other iron. Once you understand the "B" field of a magnet and how it relates to the entire universe we live in, you will then understand what Tesla was telling everyone "LOOK FOR WHAT YOU CANNOT SEE"" .I believe the pyramids were inter galactic communications and transportation systems. Stone Henge and Gobekli Tepe , power plants. Take a look at Coral Castle Florida on CZcams and you will see a similar pilar. I believe these horizontal pillars were oscillators that would provide excitation for many things from crops in the field to anti gravity FYI: If a UFO fly's to close to you the "B" field that provides the anti gravity ("B")Field). will cancel out your power source !!!! E=MC2 is at best just a joke!!!
I am actually a physicist and of course this is nothing new for me, but seeing this excellent demonstration of all the effects is really inspiring! Very good channel!
Are you actually "actually a physicist" or is it just part of the joke that your account is named Richard Feynman?
Theoretically if you had a time of near zero mass and an excess of EM resonance flowing through a conduit, how would you dissipate or otherwise loop back into that energy stream? Especially if that resonance comes from high frequency and low frequency sound that is 2 or 3 different but complementary values for transmittance.
In Korea we have a ride called the Gyrodrop. People ride along the outer rim of a huge ring that gets elevated to a height of 70 meters. Then the ring drops, and when it gets close to the bottom, the phenomenon explained in this video brakes it to a halt. I've heard that it relies purely on magnets and no electricity, so people will be safe even if there's a sudden power outage during the ride.
Haha! But still, I won't be riding on that shlit! Mother Nature could step in, throw you an earthquake that could shift-fly-throw-toss the magnetic base all the way over to the Cotton Candy booth. Then what, Mr. Pancake said.
@@designertjp-utube Yeah well we rarely have earthquakes here and they stop the ride altogether when the wind blows over 7m/s (15mph). Though the last part means I have a damn hard time trying to ride this thing everytime I go to the amusement park :P
@@designertjp-utube you worry about nothing. You could be walking alongside the road when an earthquake hits, fall, bang your head then dead. You let your life be dictated by a remote possibility. Sad life.
@boson96 I'm not going to google it but I am pretty sure in this case it is South. South Korea.
This was FASCINATING, thank you!
The world makes so much more sense now! Thanks you so much for this, I will never forget it!
Wow. Great video. My physics teacher recommending watching magnets through copper as I was having trouble understanding magnetic flux. Thanks.
Amazing that this hit my recommended now, years later. Great content!
Thanks for sharing this...
You are appreciated for being encouraging to those of us that wish to improve our lives...
Outstanding demonstration! I created a Lenz’s Law demonstration video and more recently repeated it only I used saltwater in place of a non-ferrous conductor to see if eddy currents would be generated in the saltwater (NaCl). I can add a link if you are interested. Your demonstration is much more effective than mine. Good job!
This is actually super interesting. Great video
Dan Flynn Great video. I would be interesting to see the influence of the copper plate temperature. He could put it on a bed of dry ice. Of course copper is not superconducting at that temperature but its resistance will drop and I bet we will see the difference...
czcams.com/video/6YHdw0Wz788/video.html
Dan Flynn ----- So Agreed.
This is one of the coolest things i've seen done with magnets
search for world`s simplest eletric train
Really good explanation. I would just add a common misconception that I, myself had when I was younger:
Electrons DO NOT flow through the whole wire. In fact, they barely move.
What DOES move at the speed of light is the electrectomagnetic field generated, which is the one thar produces the resistance.
This is a misconception that even electrical engineers that I've met have. Yet can be explained by Maxwell's equations.
Veritasium?
Dave AR ---> "Electrons DO NOT flow through the whole wire. In fact, they barely move."
This sort of opposes the "electron cloud" theory and, in fact, semiconductors and computers.
I think one of my favorite things i came across years ago was using a powerful magnet to rotate a copper ball as i swiped it by. Similar principle, but reversed motion
Oh my... the pendulum part is amazing!!
Laser levels use this to dampen unwanted vibrations. A copper disk is mounted at the bottom of a pendulum that is free to pivot. A magnet is mounted below the copper disk and causes the laser to self level rapidly and be resistant to small vibrations applied to the mount. In this application the magnet is stationary to avoid magnetic fields including that of the earth from effecting the accuracy of the laser level. Without the magnet, the laser would eventually self level, but would be too sensitive to vibrations to be useful in most construction environments.
Cool!
Well how bou dah?
Nice find.
until now I never really understood why electricity generation was so inefficient or how you could measure draw from an alternator or generator. I didn't realize that the amount of current the copper generates in response to the magnet actually forces the magnet to slow down. I learned today.
AleksSnipes ---> "until now I never really understood why electricity generation was so inefficient or how you could measure draw from an alternator or generator. I didn't realize that the amount of current the copper generates in response to the magnet actually forces the magnet to slow down. I learned today. "
However, I hope you did notice that when an LED was connected, the magnet did NOT slow down much.
This is incredible. Amazing teaching. I love watching your videos.
E=MC2 is a joke! OK let's get this correct !! #1 The only reason radio waves and AC current travel out in space and down a wire is because of the "CENTER " of a magnetic field. (The "B" field), The North and South poles are the weakest part of a magnet !! Just like Tesla said, you got to look at things you can't see !! At the center of a magnet is anti gravity, (just tap the center on any glass or plastic and it will loose weight), The center can repel water if vibrated at the correct frequency, If you vibrate the "B" field into granite rock it will become soft and you would need copper tools to work on same , you don't want to disrupt the magnetic (B")field ) with other iron. Once you understand the "B" field of a magnet and how it relates to the entire universe we live in, you will then understand what Tesla was telling everyone "LOOK FOR WHAT YOU CANNOT SEE"" .I believe the pyramids were inter galactic communications and transportation systems. Stone Henge and Gobekli Tepe , power plants. Take a look at Coral Castle Florida on CZcams and you will see a similar pilar. I believe these horizontal pillars were oscillators that would provide excitation for many things from crops in the field to anti gravity FYI: If a UFO fly's to close to you the "B" field that provides the anti gravity ("B")Field). will cancel out your power source !!!! E=MC2 is at best just a joke!!!
this video showed me a clear (very crystal clear bruh) demonstration of Lenz's law and Faraday's. this video was amazing and i will suscribe to see more of your work.
I love these simple concept videos, just a single idea that gets expanded into something bigger.
E=MC2 is a joke! OK let's get this correct !! #1 The only reason radio waves and AC current travel out in space and down a wire is because of the "CENTER " of a magnetic field. (The "B" field), The North and South poles are the weakest part of a magnet !! Just like Tesla said, you got to look at things you can't see !! At the center of a magnet is anti gravity, (just tap the center on any glass or plastic and it will loose weight), The center can repel water if vibrated at the correct frequency, If you vibrate the "B" field into granite rock it will become soft and you would need copper tools to work on same , you don't want to disrupt the magnetic (B")field ) with other iron. Once you understand the "B" field of a magnet and how it relates to the entire universe we live in, you will then understand what Tesla was telling everyone "LOOK FOR WHAT YOU CANNOT SEE"" .I believe the pyramids were inter galactic communications and transportation systems. Stone Henge and Gobekli Tepe , power plants. Take a look at Coral Castle Florida on CZcams and you will see a similar pilar. I believe these horizontal pillars were oscillators that would provide excitation for many things from crops in the field to anti gravity FYI: If a UFO fly's to close to you the "B" field that provides the anti gravity ("B")Field). will cancel out your power source !!!! E=MC2 is at best just a joke!!!
Excellent demo and explanation
HAVING THE BIRD present and hopping around while the boring commercial was in progress is genius :)
Thank you!!!
Saw the daily dose of Internet and immediately when to see this video
@@i_fish6657 same that was pretty cool
your the reason why im here
@@i_fish6657 same!
I’ was looking for a science experiment and found this on your channel thanks
Seeing the eddy currents halt the magnet on a pendulum is really amazing!
It's actually not current which stops the magnet but an induced magnetic field which opposes the motion
@@d.bcooper2271 and the magnetic field is due to current
ive been playing with my magnets and copper ingots while watching this, nice video
Awesome video. Awesome content. Great sources in description. New subscriber here.
This is great! I'm finally starting to understand how electricity is really made!
I used to be told it was just steam running a turbine. I could never understand how it gets into our wires. Now I see there is an electromagnetic field that is stimulated by interaction of magnets and electrons
steam through a turbine hehe oh.. you gotta love it
ok, firstly it's not MADE, it's GENERATED
which is why things that make electricity are called GENERATORS
Secondly .. Electricity is just merely the movement of electrons through a conductor.
or in other explanations
a Copper Atom has electrons, and a certain number of electrons occupy each electron shell.
we are just concerned with the outer shell
this shell is called the VALENCE SHELL
and the 1 electron in the outer shell is called the VALENCE ELECTRON
Copper has 1 Atom in it's valence shell
and as such it would rather it LOSES an electron (That's how atoms work)
simply stated, an INSULATOR is an atom that would rather NOT LOSE it's electrons
a CONDUCTOR is an atom that would prefer to lose an electron or electrons
MAKE SENSE ?
so it's not important to understand the magnetic part of it .
Electrons have an electromagnetic field, REMEMBER THIS
now. when you line up (for arguments sake) one copper atom next to another and another and so on and they are all a certain distance from each other, but not too far either
BETWEEN THE ATOMS.... you get a force basically think of it as the South pole ofa magnet trying to come close to the south pole of another magnet
so.... ELECTRONS ARE NEGATIVELY CHARGED
and hence Negative repels Negative... right ?
so.. when an electron gets close to another electron... THEY REPEL
the FORCE that causes this repulsion is called EMF Electro Motive Force
now... remember that line of electrons
now..... IF YOU WERE TO PUSH 1 MORE ELECTRON INTO THE CIRCUIT
HERE IS WHAT WOULD HAPPEN
THAT FIRST ELECTRON , VIA EMF, CAUSES THE ELECTRON NEXT TO IT TO JUMP TO THE NEXT COPPER ATOM.
and that..... CAUSES THE ELECTRON IN THAT SHELL TO JUMP TO THE NEXT ATOM AND SO ON AND SO ON
AND VOILA....... ELECTRICITY FLOWS
and where does that first electron come from ?
well.... A Generator, a Battery, some external power source
does that help you understand electricity and how it's generated ?
Drop a neodymium magnet down a short piece of copper tubing & watch what it does as it falls in slow motion. Pretty trippy stuff!
Thanks for making this video + providing links for the laws......
This is very fascinating! your videos are always very interesting to watch.
Now this is what I call a CZcams of QUALITY! It's handy demonstrations of magnetism and copper are meaningful and beyond interesting.
Good work Mr. and I will subscribe, like sooner than now:)
We live in a 100% magnetic universe..... it's that simple!! The center of a magnet is by far the most powerful part!!! that's where you will find anti gravity and most everything else. STUPID HUMANS!! We went backwards in the Iron age!! the center of a magnet is where we belong after all that's what we are all configured with..FACT!
Please review the works at "CORAL CASTLE, Florida. (CZcams), He would "VIBRATE" ,, not oscillate the granite at a resonant frequency to the type stone he was working with. Granit has allot of magnetic properties given it's make up... You just need to vibrate at the correct freq. and it will become workable. Keep in mind we are talking about vibrating only the "B" field of a magnet into the rock!!! You will note at Coral Castle he also had a horizontal stone , similar to Stone Henge... All his magnetic generators were in the repel mode to maximize the "B" field.. SIMILAR TO THOSE Shown ON THE PYRAMIDS OF EGYPT.. FACT!!, THINK about it THAT'S exactly why they used copper tools!!!! You must use copper tools and any iron would totally dispute the field. Quantum Math is total B.S. E=MC2 is also total BS... E=MD. (Magnetic density). Thanks Vincenzo.. Please use your brain!! If your professor gives you any flack, have him explain the speed of magnetism. It's instantaneous.
That's how they used the pyramids as transportation devices, inter Galaxy type transportation that's exactly why they were 8 sides to create a perfect hologram from earths magnetic field that could be used to connect interglacially
Very interesting and well done. Thanks for the upload!
E=MC2 is a joke! OK let's get this correct !! #1 The only reason radio waves and AC current travel out in space and down a wire is because of the "CENTER " of a magnetic field. (The "B" field), The North and South poles are the weakest part of a magnet !! Just like Tesla said, you got to look at things you can't see !! At the center of a magnet is anti gravity, (just tap the center on any glass or plastic and it will loose weight), The center can repel water if vibrated at the correct frequency, If you vibrate the "B" field into granite rock it will become soft and you would need copper tools to work on same , you don't want to disrupt the magnetic (B")field ) with other iron. Once you understand the "B" field of a magnet and how it relates to the entire universe we live in, you will then understand what Tesla was telling everyone "LOOK FOR WHAT YOU CANNOT SEE"" .I believe the pyramids were inter galactic communications and transportation systems. Stone Henge and Gobekli Tepe , power plants. Take a look at Coral Castle Florida on CZcams and you will see a similar pilar. I believe these horizontal pillars were oscillators that would provide excitation for many things from crops in the field to anti gravity FYI: If a UFO fly's to close to you the "B" field that provides the anti gravity ("B")Field). will cancel out your power source !!!! E=MC2 is at best just a joke!!!
It’s really cool if you use a copper tube and a neodymium magnet through it it’s slows down super slow through it!! Great information video 🤙🏼 🤙🏼
E=MC2 is a joke! OK let's get this correct !! #1 The only reason radio waves and AC current travel out in space and down a wire is because of the "CENTER " of a magnetic field. (The "B" field), The North and South poles are the weakest part of a magnet !! Just like Tesla said, you got to look at things you can't see !! At the center of a magnet is anti gravity, (just tap the center on any glass or plastic and it will loose weight), The center can repel water if vibrated at the correct frequency, If you vibrate the "B" field into granite rock it will become soft and you would need copper tools to work on same , you don't want to disrupt the magnetic (B")field ) with other iron. Once you understand the "B" field of a magnet and how it relates to the entire universe we live in, you will then understand what Tesla was telling everyone "LOOK FOR WHAT YOU CANNOT SEE"" .I believe the pyramids were inter galactic communications and transportation systems. Stone Henge and Gobekli Tepe , power plants. Take a look at Coral Castle Florida on CZcams and you will see a similar pilar. I believe these horizontal pillars were oscillators that would provide excitation for many things from crops in the field to anti gravity FYI: If a UFO fly's to close to you the "B" field that provides the anti gravity ("B")Field). will cancel out your power source !!!! E=MC2 is at best just a joke!!!
“So, under hobbies, you wrote ‘magnets.’”
“Yeah, I like magnets.”
Mmmmm ....Magnets!
magnets and milksteak
Are you... attracted to them?
@ - I find them quite repulsive.
I hate in-content advertising. But I like that the amount they pay you makes this something that you can do. When CZcams changed their algorithm to reward effortless blogs and punish evergreen, high-effort content last year, we've nearly seen the death of it on CZcams. I hope someday you can earn enough without the ads, but my Patreon slate is currently as full as I want it to be. I can't complain, so, much as it pains me to see all these content creators having to sell out just to make this worthwhile, I'd rather they sell out than to see the content die entirely. Bittersweet, glad you've found a way to make it work.
MattsAwesomeStuff ....
??????????
Blame Google!
it's google's attempt to censor the internet by blocking out any informational or ideologically touchy content with sheer volume. Content like nighthawkinlight is dangerous to the new media paradigm because they just want people to release vlogs and unboxing videos every day because their corporate sponsors don't make money off of education or science unless they're trying to sell something specific
they have been doing the same thing with their search results and now almost anything you google just comes up with 10 pages of clickbait with identical body text or corporations who definitely have enough money to pay google for top page results
for an organization that has made a big stink about 'fake news articles' they really don't seem to do much about the dearth of straight up useless and stolen content on the front page of every search other than putting big check marks next to legacy outlets that i'm pretty sure nobody trusts anymore
I have absolutely zero problem when in-content ads are done the way in this video, after the actual content or right up front.
But I work in broadcast radio, there is no such thing as "free content." You don't pay to watch content on CZcams the same way you don't pay for radio.
The money has to come from somewhere. If everyone just donated through Patreon, there'd be no CZcams, no radio, no broadcast television. No channels like this. No channels period...since the platform wouldn't exist.
We all hate ads, but, without someone paying for the platform and the content, we'd have no free content to consume.
We'd have to....go outside and use or imaginations!
We couldn't even read books...since books aren't free...and the free ones would be sponsored.
Ads are a necessary annoyance.
Geek Therapy Radio - My problem specifically with in-content advertising is just that, it is part of the content. That's fine for disposable vloggy or newsy videos that have no archival purpose, that, frankly, if they were deleted in a week no one would notice or care. But when it's baked in, it's inseparable from the content itself. 10 years from now this video will still be every bit as relevant as it is today, but the ad will likely no longer be relevant, the company probably won't even exist. Maybe in 5 years there will be a new video platform instead of CZcams, but, now it'll have to get edited because there's weird advertising baked into the actual content. Other than historical comedic purposes, like seeing the ads that played on the Beta recording of Starwars Holiday Special, it's weird. In-content advertising works great for the content type that is swamping the content type I do like. Stuff that's low-effort and relevant only because it's new.
But, like I said, I get it. From what I understand, most of the companies that want you shilling for them don't pay you by view count, they're just paying for your "reach", your amount of subscribers. And the amount you get from a shill video is like, 10x, 20x or more than you get for out-content advertising from Adsense (partially harmed by adblocking, can't block the ads in the actual content). Ads aren't necessary, but, my Patreon slate is full so I can't complain. Without these ads there likely wouldn't be this content and I certainly wouldn't want that.
Just kinda idly complaining about the way the world is. I don't have a better solution.
Dude, you are a Wizard. That was sick.
I love the magnet swinging against the copper disc, what wonderment
Fantastic vid, I'm understanding the way magnets & copper work together to create electricity. Thank you so much!!!!
This is a great way to visually show how electricity can be generated. Fantastic video.
Wonderful demonstrations! I believe that metal detectors work by using this principle--the powerful magnets in the detector causing current flow in metal hidden in the dirt--and these induced currents are what sets off the alarm. It is amazing to think that Maxwell used the data from the many experiments performed and logged by Faraday in order to synthesize the four equations that betrayed one of natures greatest secrets--namely that light is electromagnetic radiation.
Dude I love science. Figuring out how the world works just really makes me curious.
Great explanation, very simple to understand.
I enjoyed this video. It reminds me of Feynman and his unique way he taught.
'Electrons were perfectly happy." That made me laugh :)
This is the best magnet video on youtube
Amazing video and the fact that you have such an amazing parrot just multiplied it. Wicked.
Thank you: nicely explained Faraday and Lenz's laws
excellent presentation and the black headed caique looks great too!
Super natural never thought we could represent this sooo well Exelent job pal aussoum video !! 😊😊🙏🙏
This is one of the coolest videos I've seen in a long time. I'm fully aware of the back-emf and resistive forces forces generated by the copper through learning how motors and generators operate but never thought of this sort of behavior. Seeing it applied here just shows that we have barely begun to explore the interaction of magnets and copper (or aluminum or another strong conductor).
on the contrary, this behavior is well-understood by physicists-- the entirety of this video can be summed up with the rather elegant equation
∫E͐•dr͐ = -d/dt ∫B͐•dS͐
the essence of this equation is that nature will combat (the negative sign) a change (denoted by the derivative, d/dt) in magnetic flux (which is basically just how much magnetic field (B͐) is going through an area (dS͐)) with an induced voltage (E͐) through a wire (dr͐).
what this means is that conductors will resist¹ not the _presence_ of magnetic fields, but a _change_ in magnetic fields. copper doesn't care if magnetic fields are near it, only if you try to _change_ how much magnetic field is near it. this is why we have to move magnets in generators to be able to get electricity. contrast this with electric fields-- the mere presence of an electric field, not it changing, is what drives a current in a wire.
¹the way the copper physically resists the magnetic field is with its own induced magnetic field. electrical current always produces a magnetic field, and it just so happens that the induced current in a conductor from an external magnetic field will always be in the opposite direction to the change that created it. so, if you move the north side of a magnet towards a conductive material, the material will temporarily become an electromagnet with its north side facing the approaching north side of the magnet. pretty cool stuff
@@you_just "what this means is that conductors will resist¹ not the presence of magnetic fields, but a change in magnetic fields. copper doesn't care if magnetic fields are near it, only if you try to change how much magnetic field is near it."
IMHO, this is a sort of inertia.
@@you_just Shunts are great places to store back EMF in rotating fields. Old idea. It works. See magnetic drives.
@@you_just
this video is possibly the best i have seen on the subject, im just disappointed that he didnt show what happens with different resistances in the circuit rather than short, open, and LED... how a different number of turns for the same mass of copper gives different effects with different load resistances... that the magnet falling from a set height always contains a certain amount of energy.
how much energy is extracted? can be extracted? whats the limit?
wheres the work being done, and wheres the energy being dissipated?
really basic stuff when you actually think about it.
but you see... the OP i believe means... the average person has no idea, and confronted with the equations you presented, even with the explanation... the average human these days is intellectually stunted.
just look at the abundance of so called "generators" that abound, people that havent gotten past the fundamental "waving magnet past wire make led light up". magnets waving around with no flux containment, no idea of reluctance, resistance, flux density... nope. just "wave magnet past wire make led light up".
should be taught to preschoolers instead of the utter BS they put on for them now. except it needs teachers that actually understand it and can demonstrate it. like all practical skills... not just ... "careers". how can a teacher teach a subject they dont understand themselves?
This is a great in-depth look at this phenomenon. I can see ways to apply it to my magic work 🙌
Great video as entry level understanding. Thank you.
true this is MOSTLY applied on any Seismometers as "DAMPER" by Eddy effect. I used that method on my Seismometer to control period swing motion without using OIL as damper
Why haven't I seen this video until now? I've been subscribed for 4 or 5 years and this is one of the videos that most fascinated me
Um, 'cause it's new?
Great video! Compared to the usual "monetized science experiments" channel, your production values were better, you did more interesting experiment variations (including a number I've never seen before, and I'm a pretty big magnet fan), and your science explanations were more legit. And when you _do_ make a science error you're called out on, unlike awful "I'm not a scientist, but I play one on CZcams" channels like The Action Lab, instead of trying to argue, deny, or ignore to save face, you pin the comment and acknowledge you were wrong. Good man.
Your parrot is also cute. That was funny when (s)he was digging in your ear and not only was your spiel entirely uninterrupted, but you didn't even flinch. 😁
Anyhow, will definitely plan to check out more of your vids.
FUCK YOU?
DanHarkless ﴾Halloween videos, YTPs, & more﴿ to add further to your comments, I for the first time saw explanation in a video.
so does this also happen with other non-magnetic metals like zinc, aluminium, tin, lead, etc?
@@skylerlandale1437 If they are conductive, yes. But copper is far and away the best conductor of common metals, better so even than gold.
@@ChristianRThomas can you measure conductivity in metals in terms of a number? i mean is there a tool or a scale that can measure this and show different ranges between different metals?
So cool... Did something like this in High School. Thanks, very interesting.
Thank you, I really mean it. I studied this long ago , but we never had phsical models like yours setup> Very nice to see.
I have copper plate and magnets and fets and caps and 555s, a giant 40A variac, ssrs psu's + and and old arduino...Hrmmm mad science, and burnt fingers incoming!