The evidence for your concurrence is substantially backed by ME. Ph.D "We could never lie about anything and so should always be trusted for everything." Edward Righteousman VII Ph.D
Thank you Doctors. I know sometimes the toll taken on our personal relationships, our minds and our bodies for this research may seem in vain. When this feeling comes, just remember the children. We're doing God's work gentlemen.
Once they are in an array like this and shielded somewhat by the material that encases them, the attractive force between the two arrays at any significant distance is very low. The whole idea with this type of array is to concentrate the field towards the center, so that doesn't leave a lot of the field for the outside.
Thank you for this! I'm a Biochem major that has been researching table-top NMR spectrometers, which are starting to utilize Halbach magnets. I was trying to wrap my head around how the fields were rolled and directed into such a narrow field, and this really helps!
When i was a kid i slept over my friends house and got drunk. We found his dad's whitey tighties with skid mark and we wet them and froze them, mounting skid mark on display over a glass cup. So that way it would by discovered in morning during breakfast. He was angry for some reason. Some people huh. Oh well
this is my the first video that compelled me to subscribe right away I am neither smart nor good looking so this stuff is a challenge for me to understand. I am have zero background in this subject I suspect it will come in handy in my plans... I want to make.. build.. wind, water and solar electrical generator in Puerto Rico... it just seems like a smart thing to do especially in light of the current conditions we are experiencing. nuff said. Thank you
Electric motor's speed to torque ratio depends on its inductance, stronger magnetic field helps shift this ratio towards smaller RPM and higher torque, power is unchanged. With low RPM motor you need less (or none) gearing, so total drivetrain efficiency is higher, but the downside is that the shafts and the windings armature need to be made tougher and bulkier to handle all that torque.
This is because the imperial system is so garbage and outdated it doesnt even include measures near this small so we kind of have to use millimeters, and we use centimeters a lot too. All arbitrary in the end though
Bass 'N'Bluegill & Noxabellus I’m glad to hear that. May I suggest you to try the metric system for larger measurements as well? 😉 I don’t get how you deal with inches, feet, what comes next yards? and miles. You all must be very good at arithmetic. Btw you could use a Thou or would that be to easy to convert into inches? ;) (I’m sorry, couldn’t help myself there) Anyway tx for explaining (i’m serious this time) Merry Xmas!
They also work interestingly well when nested as a gearing system for torque transfer. Basically, a gear box which doesn’t wear out as the flux fields act as the teeth for the gears ;-)
A costumer education channel with 18000 subscribers says something about a company. Very interesting video. I've learned something today that I promise I will never in my lifetime use. So thank you I think.
@@smooveking773 I'm assuming because weight is an issue, you can use a smaller motor with the same power or a same size motor with more power using these magnet arrays
Thank you. I did not known anything about about shaping and focusing and directing magnetic fields... And their use in electric motors for electric cars..
I don't have anything technical to contribute to these comments, but I'd like to point out the way he puts those magnets down at a full arm extension, well outside his current working area. That's a glimpse at professional magnet handling right there.
right hand rule / 90 turn and only two face the same way. Try using two apposing bowlshaped magnets with their bottom of the bowl facing eachother. In the center you'll find some interesting effects on the center edge and surrounding area. Try surrounding that setup with some non magnetized steel bearings and then see how they behave inside and outside the center point.
What you say about the geometry of the magnet is so very interesting. Geometry is key to an energy source we can acquire with out the need for hydrocarbons.
Since the video ends with a sales pitch, you can be fairly certain that this company PAID Google to promote this video to people who view lots of science-related videos.
Do these magnetic arrays weaken one another over time? I found a magnet in an old log building when I was young that was date cast 1896 Milwaukee and it still seemed very strong to be that old could pick up a 3 lb. Iron door stop no problem. Thanks for sharing.
A simple bandsaw and some cutting oil works just fine. Edit>>> I should say that with a caveat: Neodymium magnets are NOT easy to cut. They crumble easy. But most other magnets can be cut with not problem if you use the correct blade type (abrasive for ceramics) and plenty of cutting oil. I actually had a neodymium magnet pop like a firecracker once when trying to cut it with a hacksaw!
Most magnets are created by mixing metal powders then slow baked in a mold or cast, then electrically magnatized after they are baked into the shape wanted.
Heating is a challenge, but so is breaking. Rare earth magnets tend to be pretty brittle. That's why it is generally worth it to just pay someone who has the equipment and practice to do it for you ;)
Great video. I have made a few that directs the center to a single point for use with lasers. Setting them in its fixture was extremely hard and scary.
If you actually bothered to watch the video and listen to what was being said you'd know that the magnetic field strength of that large halbach array is only 1.2T in the gap in the center of the ring and since I didn't see him squeezing his wrist and / or watch through it I don't think he has to worry.
@@AverageJoe8686 Ah, the sense of humor where you immediately feel the need to defend it against anyone who didn't understand what you said was a joke. Even though there was no indication of humor presented in the original comment. And then feel the need to insult anyone who doesn't get it. THAT sense of humor? Yeah, that's what the rest of us call "simple".
A friend and I have been discussing how to make a field portable MRI system that's low cost and could be used in low tech environments. I proposed to use inflatable bladders and fluidic suspended metals to be pumped at neccesary rates to generate fields needed for imaging. He's already patented a high power antenna system that would work perfectly if the magnetic fields could be generated in a more efficient way. The goal is to make something that's cheaper, smaller and lighter than what's in use now. Thanks for anyone's advise.
"Come on home, girl" he said with a smile "You don't have to love me yet, let's get high awhile But try to understand, try to understand Try, try, try to understand, I'm a magnet man" Sorry. Couldn't help it.
Here is a video from Veritasium about levitation using rotating halbach arrays over a conductive plate. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-pCON4zfMzjU.html
ET Not entirely true. You could probably use permanent magnets and levitate a chair, but have other mechanical stabilization. Meissner effect could levitate a tiny model chair using magnetism, but this isn’t very practical.
@@ET_AYY_LMAO Wrong, you can use a magnetic array that focuses the magnetic field around the outside and have it levitate another magnet that is repelling (while attached to an object to keep it from flipping and attracting)
Geo magnetic procession! Ken wheeler in my opinion has done more to give an explanation into what magnetism actually is than anyone.....this is a sales ad.....I’d of used the wording plane of inertia...
Blake Julian I’m from the group of society that was never informed of the secrets of magnetism as well......only a select few throughout history has ever known....the point has come where even those special people don’t have special teachers anymore....the knowledge was learned along time ago and was kept to tight quarters......the facts are clear..without magnetism there is no electricity....it’s also true that we live on a magnet 🧲...which brings a lot of things into question????.....Nicola Tesla was an electrical engineering genius...who’s work was hi jacked by the USA...under national security reasons...it’s also the case that his work is founded in the heart of the technology we have today....Nicola Tesla greatest discovery was knowing and understanding magnetism.......if we all knew...we’d have no need for government or corporate management.....
This is the sort of advertising I appreciate. One definition of marketing is finding people who would benefit from buying your product/service and telling them about it.
@@nobodyimportant2470 Ads disguised as edutainment = evil Ads which are edutainment = good Often hard to tell the differences unfortunately, but I think this is the latter. ;)
I noticed the same thing! He seems to know his details but missed the big picture. The fluxlines are 'shortened' inside the array by the horizontal magnets. The direction of these magnets is what causes asymmetry the Halbach.
Have always enjoyed experimenting with magnets so I enjoyed this video very much. Couldn't help noticing the hexagonal magnet array and wondered if you could configure a Halbach array of this design in 2 planes. Say for example you take the array in this video (circular) and configure is to be circular and linear. That is to say multiple circular Halbach arrays arranged in a Halbach linear array. What would this yield and what might the applications be or does this type of "double Halbach" array already exist?
That big array looks like an ideal funnel to process seeds through. How much of a boost would such a strong field give to seeds dropped through the middle? Can you make the center a South Pole exclusively?
A ringlight with twenty LEDs makes twenty glowing stripes. (Rotate the ringlight, and the stripe-pattern rotates too.) "Ferrocell" isn't showing magnetic field lines, instead it's showing LED reflections from microscopic strings of particles in ferrofluid. It's much like illuminating some iron filings with a lighting strip full of separate LEDs. Yes, the iron filings will produce glowing reflections, but the stripes of light-reflection aren't "field lines." The actual micro-pattern of iron particles WOULD show the magnetic field shape. But all we can see is the optical "glints" or "highlights" caused by the curved strings of reflective microparticles. (It's much like the glistening highlights of shiny hair. We want to see the actual hair patterns, rather than only the curved glowing reflective highlights caused by the hair.)
@@ScientificLee Magnetism is a tensor force of gravity. Gravity only operates on spheres. If you want to see gravity make spheres, look down, and consider that magnetism and gravity are simply multiples of the same force...
@@SteveCalamia I take it by your reasoning, that if a celestial body is not spherical (and there are countless trillions of the them), it will not develop a gravitational field in the space/time field in which it exists? Sorry. Any mass, irrespective of its' shape, will generate its' own gravitational tensor. To date, that's a known characteristic of not only barionic mass but dark matter as well.
How you know youtube hates you.....It recommends this video. My head exploded at 4 minutes in. But that was just me testing lead to see if its magnetic. Its not, but its super fast.....and loud!
I would love to see a collaboration with one of those channels that takes things apart, cuts them open, or in some way tries to show how they work and show how Tesla's Model 3 Reluctance Motor uses a very advanced Halbach array to achieve its efficiency.
You are correct!!!! I did this part twice and the first time I had the readings up there that averaged 4160 but then I went back and got the readings again and forgot to change the number on the board:). Sharp eye:)
I thought the Halbach array for the electric DC motors was stacked both as layers and as in relation to the next reducing the cogging effect as well as making one side of the magnetic field strength stronger, the other side not necessarily weaker but more “pancaked” out (Changes the shape of the field). The goal of producing a stronger field whether inward or out depending on the other component of an electric motor. (Either can be the stator or the rotor) . I tried to attach a drawing to show what I am attempting to say.
Got me subed buddy ...i already heard of the array ...very cool and simple explained , well done👌.. I'm a metaldetectorist do magnetism intresses me alot , we sometimes go magnet fishing aswell .... I assume they don't go well together even if metaldetector is switched off ? Am i right ? For now i keep them at least 8 ft apart.. Grtzz johny geerts
I would like to suggest that you can make a jig. The jig would be made to accommodate one specific angle for one magnet die. When a die is cut, place the cut die in the jig and reapply the magnetic field. You can even change the field when the dies is flipped around. Take care.
He talkedfast. Wasn't it bending or rolling the adjacent field? The neighbor magnets push the field out and physically withstand a lot of physical pushback to hold it further out. Magnets only add field effects, they do not cancel. So if the North field is pushed out, the South field is pulled in with it.
The number of magnets is directly proportional to the field strength, Tesla. Increasing the number of sides to a Halbach, you can increase the number of magnets. Using 3D printing of metallic solutions, you can make intensely small magnets under magnetic fields during the curing process. You could make extremely strong magnets then. +1000 Tesla at low cost with a high capacity output. If you look the first set of 4 magnets(Top, Bottom, Left, Right and then rotate right to the next set of 4) you can see the magnetic fields form an infinity with a 90 Degree angle of incidence at center; The second set of magnets(Top, Bottom, Left, Right) have a zero degree angle of incidence at the center. This is in reference to the last example in the video, there are 2 sets of magnets with 4 in each group.
@@letmepicyou thankyou for your comment. I, am not an engineer, or similar - this made a lot of sense to me, hence the comment. Aluminium, like steel, are both 'dirty' metals, re the production methods, both of which are produced where I live - smack between both products founderys. It's so nice to be breathing their pollution, though I prefer the fresh air, now available from lockdown, due to Covid19 - the Founderys, are still producing though, due to the problems associated with shutting down those facilitys. Stay Safe, & Keep Healthy.
YOU can always get two great & powerful magnets from tearing up discarded micro wave ovens, YOU see at people's front yard @ trash pick-up! A little time consuming & YOU need to separate them from the Magntron in the back! I gathered me about 8 of then (round circular magnets 2" wide w/a 1/2" hole in the center! & Go for it & have fun, just keep your fingers clear, they can produce a nasty pinch! Stuck them to my oil pan to capture any metal powder!
@@TimothyMcAleeSrGeD just remember the microwave magnets sometimes have a beryllium ceramic case, inhaling that dust if you break it to get the magnet is on par if not worse than asbestos
@@SuperMagnetMan What Charles Coulomb actually did - drive.google.com/file/d/1rAkRKb9lvAfyQdRz8mMNii9iSXAwlzN2/view?usp=sharing What Charles Coulomb actually did - cloud.mail.ru/public/3t7j/3v4Aj5Tqc
