As an educator, I’d like to let you know that one of the things I get from your videos is that sense of wonder I had as a kid. That then motivates me to explore a topic further. Thank you.
Great idea! I giggled when you struggled with the tools near the magnet. I know exactly how challenging that can be... You know its coming and prepare for it, but you just can't compensate for the quickly increasing strength of the magnetic field near the magnet x)
I did some work on some magnetic stuff back in the day, we had some special alloy tools which made it a lot easier. I think they were just stainless steel, but I can't remember, I remember them being expensive however.
@@ColtaineCrows Neodymium magnets are unbelievable compared to any of the past magnetics most of us old guys are familiar with. Every warning about pinch danger for any neodmag larger than two nickels stacked together is for real. Blood blisters for magnets the size of a quarter or a domino. Crush bone on neodmags 52 about the size of Tech Ingredients' rig here. Loose fingers and other chunks of skin on a 6" diameter magnet. The holding force is not an exaggeration. Put the weight of a refrigerator on just that finger and it's going places. DO NOT LEAVE MAGNETS of any kind where ANY KID can get to them. If they're stupid, and we're all stupid at some age, they'll swallow them. Bad enough for refrig magnets but DO NOT WAIT AROUND IF NEODYMIUM (shiny) magnets. If they swallow a bunch at one time connected, they might pass them in the poo but still straight to hospital. If they pop them in their mouth like popcorn, they're going to end up in surgery immediately. (muscular distortion of intestinal wall > huge shear vectors where pinned by neodymium pair or cluster). All that said, they are fantastic to try out ideas that weren't effective back in the day (It took me a few nips to forget the old-magnet mindset - scary these are) that may show noticeable efficiency now. There is more to magnetic resonance than we understand. Just like hitting a certain note in a bathroom, oscillating magnetic fields need a rethink toward new materials and methods. Supercapacitors able to be quick fed transient and anomalous emfs that are now wasted can add up harvested. Much of our math on efficiency relies on the permeability of the magnetic and reluctance of alter-magnetic materials which are derived in non-combined standard lab replications. Experimentation is happening because magnetic power and energy storage options are available. The gold standard is electric flying. Power/Weight ratio can be offset by unconventional efficiency schemes using short burst hot and long term simmer power management. Great time to be alive and curious in these things. Great FREE resources like this guy here. The Bedini wheel as explained and demonstrated by Great Scott showed some interesting strangeness in the results but only because he can diagram and explain his fabrication and then measure and reason on the results. Might be worth replicating his effort. Hate to encourage the lunatic fringe and I've seen the "free energy" videos til I'm sick but it was a surprising outcome and those are always happy accidents.
@@kguidry7520 Speaking of interesting results, this one one of the neatest things I have seen in magnetics for a long time. They made a magnetism based diode. arxiv.org/pdf/1802.00832.pdf Here is a different approach involving a 2D honeycomb of permalloy with some directional asymmetry of the hole positions. onlinelibrary.wiley.com/doi/full/10.1002/aelm.201700500
You should use flat steel similar to pallet strap. I've seen it used in some power transformers. This will eliminate most of the air gaps created by the round wire. It should give you a higher density.
@@TechIngredients Could you use shorter strips of metal and layer them similar to bricks first then wrap the wire over the top so as to bring the field lines closer to the gap? Or have I got the wrong end of the stick?
Wouldn't recommend it. People build those things because it's easy and the tools are free, but if anything breaks, tech support is a nightmare. You might think you'll just fix it yourself with some spare parts from Granddad, but big surgery made that illegal.
The fact that your son films for you makes me think he may have an idea how lucky he is to have a Dad like you. I sincerely hope he enjoys every minute of it. Lucky kid!
The father of the main presenters son would be a heck of a teacher in school. So clear spoken and easy to understand. How about ferromagnetic fluid? You could make a plastic or aluminium sealable casing and pour the fluid in the casing
I'm not 2 minutes into this video and I already have to pause to give you props for your quality camera work and editing. Always impressive but that selective screen zoom on the probe was a real nice touch!
This was simply a joy to watch. When you were saying that having to work with big magnets could be “sketchy” I thought, that’s a phrase I’ve never heard here before. It must be true. It was great to just see the laughs with the tools and general mirth in the video. Great as always.
I appreciate the fact that you are willing to take the time from doing other things that you could be doing to provide such Interesting content! Also, that you do so in such an easy to understand manner! Thank you, sincerely!
I used to work at a transformer company and they used sheets of high-silicon steel which were layered together to make a laminated core. Apparently it allows a higher magnetic flux density than solid steel. However I can see that working with sheet steel edge-on to a powerful permanent magnet is a recipe for truncated fingers, so your wound coil idea is interesting.
Amazing that you can make a relatively uniform magnetic field with almost a whole 1 Tesla of field strength. The strongest magnets I ever used were 3 Tesla, and those were liquid-helium cooled superconducting magnets in a Bruker Spectrospin 300 MHz NMR machine about 15 years ago. Go back about 40 or 50 years, and 1 Tesla would probably have been enough to do some basic low-field NMR experiments. If those super-strength rare-earth magnets had existed then, I'm sure they would have been used for that! Of course the added problem with NMR is that the field strength around the RF probe (which is where the sample-tube goes as well) has to be ABSOLUTELY UNIFORM - no variation at all. NMR instruments typically do this with secondary electromagnet coils called shim-coils, in which the current is adjusted to even out the field strength. In the early days this was done manually while keeping your eye on the field-sensors, but this utter tedium was eventually taken over by a computer, which could do the adjustments much faster. I wonder if there would be a way of combining the permanent magnet array you show here with a bank of electromagnetic shim coils to make a perfectly uniform field? A standard NMR sample tube is only 5 millimetres wide (with a 40 millimetre sample depth), so the cross sectional area over which the field needs to be uniform is fairly small. If you could do this, you would be on your way to making the core of a home-made NMR instrument. Minus all the RF transmitters, receivers and amplifiers of course, which are a whole other headache.....
I'd like to thank you and the people involved in your RUclips videos. I work the Natural Resouces Canada in a combustion lab and we are in the process of designing and building a Magnetohydrodynamics project. This subject is not aligned perfectly with our expertise. We have learned alot from your videos and it has contributed greatly to the final design and hopefully the success of the research.
I didn't even think of how the field would interact with the tools, I was wondering what was happening. Interesting concept, manipulating a magnetic field is significantly more involved than I thought!
Very ingenious solution! I worked on MRI's a short while and the experience you had with the channel locks was a real problem I had. Most of our tools were beryllium alloy so non-ferrous but drilling access holes for fiber optic cables around a +2T magnetic was an experience I never wish to repeat. Wonderful video keep them coming!
Mister, you have great presence. I could find you in a crowd in 2 seconds. This was a really great video, obviously the subject well thought out and something of interest to you, as well. That little laugh at yourself got you a new subscriber. Thanks for what you do.
I wrap lots of wire and built an aluminum jig/fixture that goes on the lathe and uses the threading settings. Hardest part is like you mentioned chip cleaning before when using magnets. I spend more time in prep cleaning before than I do wrapping.
This channel deserves more views rather than other youtubers doing sh*t to get famous, for MONETIZATION. I just love educational videos and discovery.. videos like these will teach future generations for years to come.
Did one walk by in the window? I missed that person because all I saw was someone who does not have any clarity of magnetic fields talking too much about nothing.
@@lifeunderthemic You're right. I shall just head on over to your channel and peruse the wonders of ... wait, there is nothing there. All talk I take it.
@@lifeunderthemic STAHP DELET COMMANTS !!!111 "Parishna what are you talking about? How does a magnetic field work? Why do so many ignorant of rack defend what they are clueless of? You could have just looked at my page instead you don't stfu and continue to say not a thing. Why is everything in constant motion on this planet? What is seen everywhere in nature as well as in a simple magent that is not relayed? Need a hint? Look on the top of your head and on the tip of your toes. People love to watch videos and live clueless today. " YOU DELET, I JUAN. Ahhahhahaha
Right? I automatically hit "like" before I watch because I know I'm gonna get so engrossed in the video I'll probably forget to later. I've never not liked one of your videos so I know it's a safe bet. Please keep it up. You deserve so many more subs!
Speaking of myself only; I am not sure how useful this is for me but I guarantee you it is mesmerizelingly interesting. I haven't been exposed to a more interesting site than yours and you have a gift for explaining the principle properties of these subjects in such a through and clear way that I "almost understand" them! But, as I'm sure that the majority of the viewers would agree, we aren't in your league. Please continue this facinating site, I haven't found any other sites that come close in interest level and especially not in your scientific method and working knowledge. I'm a big fan!
@@robbiejames1540 if you change the current in a coil, it creates a changing magnetic field. That changing magnetic fiend induces a current in a conductive metal neat by. The currents in the metal create their own magnetic field in opposition to the initial magnetic field that induced the current. The result is a repulsive force pushing the conductor away. A Pulsed induction thruster uses a coil to ionizes a gas for a working fluid to use for a thruster to genetate an intense and rapidly changing magnetic field. once the gas is a plasma the changing magnetic field from the coil induces a current in the plasma and that current in the plasma makes its own magnetic field opposing the magnetic field in the coil thus pushing plasma away at a high speed for thrust. en.m.wikipedia.org/wiki/Pulsed_inductive_thruster
What a great video. I’ve always wondered what other ways would work to strength the magnetic field. Big blocks of steel are expensive and dangerous and hard to work with. The wrap technique is something I can do and maybe not have every nut and bolt require that it be scraped off my bigger magnets. Thank you! Thank you! Thank you! JTI
When you don't want the nut to move, use two and tighten them toward each other and that could alleviate pressure on the carriage device in the middle. You could have saved on the bearings at the ends. Cool video!
Not only are your videos inspiring technology/science wise, they also make me aspire towards having a tidy lab and to develop a more pragmatic approach to my builds and projects. Looking forward to next video whatever it may be!
I love everything about this! I've been making products with N42 mags. Once I discovered "CUP" aka "POT" Magnets, it opened up so many more possibilities.
"So I built another assembly to make this a little more convenient." ...I was all hyped up for the lathe. Not going to lie, a little disappointed. Maybe in version 2.0, because if there's one thing I've learned by watching your channel, it's that we never see anything just once and you're always improving. Thanks for doing what you do.
Excellent video as always! Please don't stress yourself on the whole metric vs imperial measurements just to please some commenters here, the people who it really matters to can easily convert. You make astounding content and we all look forward to you sharing your ideas!
Actually, I don't. It's a bit of an inside joke. The most avid proponents of metric acendency tend to be the same people that look down on Americans because most of us are not multilingual!
Whats really funny is that the Intelligentsia who call us stupid for not using metric as the superior way, never get the joke in the joke when we tell them to come back when they make it too the moon. Not only haven't they made it to the moon unlike us Imperial users, they haven't made it even though using the superior metric systems... :)
Seeing the title I was hoping we would finally get to see some cerrolow 136 being shot into orbit by that monster magnet yoke... but winding magnetic circuits is also an interesting idea :).
As a fabricator, contractor, tradesman, craftsman etc., I know a working man's hands when I see them, so, two gnarly old man's working thumbs up to you sir! No sissy textbook teacher here boyeez!
One of the best channels on RUclips. Was wondering your background. Any videos talking about you, or telling what you did before or currently? I guess College professor.
The same people who make sure it gets fed to you make sure you have no idea of what the magnetic field actually looks like, if that helps you gather to whom they are affiliated with. This is a common thread with many of the YT technology channels today. They like to high five one another in the comment sections as well. Probably right next to each other having a coffee thinking about how to gloss over any comprehension of simplicity in design and why that is.
@@cannaroe1213 LOL I like it. The grants and funding suppliers at work to keep the same page from ever being turned. Simple comprehension of magnetic fields shows that we've been handed a misrepresentation in crafty sleight of hand.
I, as one, feel that having intelligent people presenting the content works much better, but having worthwhile content on the show makes everything interesting to watch also I had to laugh a bit when the proper tools were not right there ready to use. Another good show, thank you. Michael said that bye for now my friend.
Copper is not ferromagnetic and neither is aluminum. Although this wrapped magnet looks something like a transformer, the wire serves a completely different function. The wire in a transformer guides the electron flow and it is these electrons that generate the magnetic field. This steel wire guides the magnetic field which is generated by the permanent magnets in the center.
I mean this in the best possible way, this gentleman reminds me of a cross between Mr. Wizard and Mr. Rodgers. You older folks like me will remember both.
Good Idea, even though he did say its only the cross section that is significant. But there would probably be some increase. That's basically a packing problem. Like you said it probably wouldn't be worth the cost for the few percent(if that) increase unless you had some laying around. Or perhaps even just cut long strips of sheet metal.
My intuition (which is likely to be completely wrong) makes me think that two opposing C-shapes out of steel ribbon would be even better as guides but it would not be as practical to build, especially not in a continuous additive process.
Clem Taylor agree! cold rolled steel wrapping around as used in low frequency transformer style would increase permeability which could increase the inner flux( my thought). Improve rejection to the eddy current to? if the experiment required to reduce the hysteresis loop of the wrapping material then could be a good idea. Good comment Clem. Keep going! Very informative and recreative topics
I built a magnetic knife block for my kitchen and it was such a pain putting it all together in the woodshop. Those little neodymium magnets are very brittle.
Thank you for sharing. Very informative with a touch of mild humour (I'm Canadian). I have have a thought for your consideration if you are planning to wrap more magnets. Swap out the threaded rod for a wooden dowel slightly longer than the mounting bracket. Use non-ferrous materials to secure the magnet assembly. Attach a drill to one end of the dowel to drive the winding (a lot less strain on the arms, hands and fingers). Would also suggest that you fabricate a spool to hold the wire and run the wire through a series of dancer rollers or pullies. This will help to apply a more consistent tension on the winding, not to mention that this would free up your videographer to do videography. Just saw the upload date. Story of my life, the ideas and witticism come well after their usefulness, oh well. Carry on you're doing a fine job.
Definitely magic. Check this out (there are better videos showing the effect but this one is good nonetheless) ruclips.net/video/r9Kg69cQteg/видео.html
You were talking about *_magnetic flux density_* (in tesla), not the *_magnetic field strength._* Please try to use the correct term. I know everyone uses the terms incorrectly, often including myself, but it´s a big difference.
Very clearly explained and demonstrated. Thank-you. At those field densities, you're within an order of magnitude of the field strengths of superconductor electromagnets - and for a much smaller cost, in a safe manner, albeit within a much smaller volume of influence. You've gained a subscriber today.
Thanks! If you can afford to reduce the volume further, two tapered, steel pole pieces in the shape of a pyramid or a cone can more than double this field strength.
@@TechIngredients Yes, it's an old idea which has been used professionally. I have a magnet which was rescued from a scrapped 1950's magnetron and which uses that technique to concentrate the field.
Ha! reminds me of the time I needed a pole for my rain gauge. So, idiot me sawed the head off my mum's broom and broke the blade of my dad's hacksaw in the process. The light of truth hit me when the broom head hit the ground: Annoying one parent was dumb, both together and I was dead. My dad's comment: 'I told you to never use a metal cutting blade on wood.' He attaches the broomhead back to the handle and takes me to buy a new one for my rain gauge.
Sparrow's claw? Is that a Vesper Sparrow, Savannah Sparrow or a Grasshopper Sparrow? :) I hear somewhere that Crowsfeet were used as a measure of time in some places.
Channel deserves much more subscribers compared to most others that use gimmicky graphics, and borrowed filler content 👍👍. Wondering, what would happen, if the wound bobbin(made of laminated mica) of steel is taken out and melted to form a solid block(easier said than done). On another note, seems like an efficient way to laminate(assuming a thin high temp insulating varnish on the steel wire), to make a low frequency(several hundred Hz)power transformer core, without needing ferrites and high frequencies, while still almost eliminating eddy currents without using the typical laminated El steel plates. Just some 💭
Kudo's for using the proper SI unit tesla. At the risk of splitting hairs, strictly speaking, your meter is measuring magnetic flux density, not magnetic field strength (your wording), for which the units would be ampere per meter (A/m). They are related though, for a given set of circumstances and materials. I like your shop BTW :-) Also, your camera work and editing has improved substantially - congrats on that!
Thanks for the clarification. Also, thanks for the other comment. Many viewers (and at one point that also included us) do not understand how much effort and learning goes into producing a good video that is easy to watch. We are still learning!
@@GigsTaggart Yet I have destroyed hard drive low level formatting by having a very strong magnetic field near to them when they were not in use. It's handy for destroying the data on a drive before disposal, and without having to dismantle the computer, but it's expensive if you do it accidentally.
@@RWBHere unless it was a very old hard disk or a very, very strong field, I don't believe you. Degaussing a modern platter we're talking several Tesla.
this man literally gave me motivation to keep studying engineering, shit i was losing hope and this man showed me what i wanna do when i grow up older, really thankful for this
So if you wanted to make things easier in some ways but harder in others, I think you could just heat the steel blocks you wanted to contain the field up above their curie temperature, stick them in place and then VERY QUICKLY quench them before you got the neodymium magnets close to their own curie temperature.
Amazing video! i would suggest to cover with sticky tape the ends of the bore of your assembly when not in use, is so difficult to clean such bores when metal debris gets in there! Anyway something that i been wanting to ask, is there going to be more content about lasers, specifically that monster dye laser? :D after my first successful dye laser (very small just about 2mJ of energy :( ) Im planing to build a powerful one by making my own capacitors out if oil impregnated paper, my idea is to make the capacitor as a roll with a bore in the middle with axial connections to place the laser cell inside the capacitor that way i reduce inductance to the minimum. The biggest issue i been having so far is finding an appropriate enclosure for the capacitor, all plastics seem to be too permeable to water vapor and the oil's break down potential is very sensitive to it.
We will demonstrate that laser in a future video. I have built a number of those rolled capacitors. You can see some of them in our much earlier video covering a modified medical dye laser. In my opinion, despite the promise the equations give for these high voltage, low inductance capacitors, I would recommend surplus discharge capacitors from say, eBay. These can be had for the cost of the materials you will need for DIY caps and usually work better as well.
@@TechIngredients Great! ill eagerly await for the video :D. Yeah you are right, one of the reasons i started pursuing the self made caps is the equations are quite optimistic specially if i can manage to achieve a break down voltage of the insulation of 60kv/mm. I considered buying surplus caps but sadly i haven't had any luck finding them at a reasonable price with someone that can ship to my country (I can't find anything were i live that can work for such laser), also the shipping is quite expensive for the large caps. So i kinda got too excited after seeing it might be possible to make my own ultra low inductance caps out of relatively simple materials but is turning more difficult than i thought mostly due the problem of making a housing that insulates the end plates-connections but also that isn't very permeable to water vapor, glass would be great, ceramic perfect but the cost of a tube of the size i need nulls the advantages of making my own cap. But well i see you have gone thorough this already so i will put a good deal of consideration to keep searching for a surplus cap, i might hit the jackpot and find a pallet with pulse caps like the ones you found for very cheap, i might even ask for a loan to the bank just to get them haha. Mm this comment is already quite long, sorry about that, i become very excited when i think about this stuff. Thanks for your advice!
As an educator, I’d like to let you know that one of the things I get from your videos is that sense of wonder I had as a kid. That then motivates me to explore a topic further. Thank you.
That screen "zoom bulge" effect made me chuckle
Indeed. Please use it in more videos!
Great idea! I giggled when you struggled with the tools near the magnet. I know exactly how challenging that can be... You know its coming and prepare for it, but you just can't compensate for the quickly increasing strength of the magnetic field near the magnet x)
I did some work on some magnetic stuff back in the day, we had some special alloy tools which made it a lot easier. I think they were just stainless steel, but I can't remember, I remember them being expensive however.
@@ColtaineCrows Neodymium magnets are unbelievable compared to any of the past magnetics most of us old guys are familiar with. Every warning about pinch danger for any neodmag larger than two nickels stacked together is for real. Blood blisters for magnets the size of a quarter or a domino. Crush bone on neodmags 52 about the size of Tech Ingredients' rig here. Loose fingers and other chunks of skin on a 6" diameter magnet. The holding force is not an exaggeration. Put the weight of a refrigerator on just that finger and it's going places.
DO NOT LEAVE MAGNETS of any kind where ANY KID can get to them. If they're stupid, and we're all stupid at some age, they'll swallow them. Bad enough for refrig magnets but DO NOT WAIT AROUND IF NEODYMIUM (shiny) magnets. If they swallow a bunch at one time connected, they might pass them in the poo but still straight to hospital. If they pop them in their mouth like popcorn, they're going to end up in surgery immediately. (muscular distortion of intestinal wall > huge shear vectors where pinned by neodymium pair or cluster).
All that said, they are fantastic to try out ideas that weren't effective back in the day (It took me a few nips to forget the old-magnet mindset - scary these are) that may show noticeable efficiency now.
There is more to magnetic resonance than we understand. Just like hitting a certain note in a bathroom, oscillating magnetic fields need a rethink toward new materials and methods.
Supercapacitors able to be quick fed transient and anomalous emfs that are now wasted can add up harvested. Much of our math on efficiency relies on the permeability of the magnetic and reluctance of alter-magnetic materials which are derived in non-combined standard lab replications. Experimentation is happening because magnetic power and energy storage options are available. The gold standard is electric flying. Power/Weight ratio can be offset by unconventional efficiency schemes using short burst hot and long term simmer power management. Great time to be alive and curious in these things. Great FREE resources like this guy here.
The Bedini wheel as explained and demonstrated by Great Scott showed some interesting strangeness in the results but only because he can diagram and explain his fabrication and then measure and reason on the results. Might be worth replicating his effort. Hate to encourage the lunatic fringe and I've seen the "free energy" videos til I'm sick but it was a surprising outcome and those are always happy accidents.
Needs some anodized aluminium AN Spanners, maybe that would work
Depending on what you are doing, you can add a bounce layer to one side, so you do not get metal on magnet contact.
@@kguidry7520 Speaking of interesting results, this one one of the neatest things I have seen in magnetics for a long time. They made a magnetism based diode. arxiv.org/pdf/1802.00832.pdf
Here is a different approach involving a 2D honeycomb of permalloy with some directional asymmetry of the hole positions. onlinelibrary.wiley.com/doi/full/10.1002/aelm.201700500
You should use flat steel similar to pallet strap. I've seen it used in some power transformers.
This will eliminate most of the air gaps created by the round wire. It should give you a higher density.
We considered that and it is a good option.
Winding first few turns of that stuff could be an "interesting experience"...
@@blg53 Throw on a liberal amount of Kapton tape, and it should be fine.
@@TechIngredients Could you use shorter strips of metal and layer them similar to bricks first then wrap the wire over the top so as to bring the field lines closer to the gap? Or have I got the wrong end of the stick?
@@TechIngredients would you elaborate on why you choose the wire over the straps. Your response implies you have weighed the options
7:48 "Have my son stand behind me" - Ah, another convenient contraption you've made :)
Wouldn't recommend it. People build those things because it's easy and the tools are free, but if anything breaks, tech support is a nightmare. You might think you'll just fix it yourself with some spare parts from Granddad, but big surgery made that illegal.
The fact that your son films for you makes me think he may have an idea how lucky he is to have a Dad like you. I sincerely hope he enjoys every minute of it. Lucky kid!
My thought exactly! Thanks.
The father of the main presenters son would be a heck of a teacher in school. So clear spoken and easy to understand.
How about ferromagnetic fluid? You could make a plastic or aluminium sealable casing and pour the fluid in the casing
No need for fluid, compacted iron powder and an acrylic box might work
I was thinking the same with filings in a binder, would be messier though.
Another quality tech ingredients upload!!!! This channel ROCKS!!!
I'm not 2 minutes into this video and I already have to pause to give you props for your quality camera work and editing. Always impressive but that selective screen zoom on the probe was a real nice touch!
This was simply a joy to watch. When you were saying that having to work with big magnets could be “sketchy” I thought, that’s a phrase I’ve never heard here before. It must be true. It was great to just see the laughs with the tools and general mirth in the video. Great as always.
I appreciate the fact that you are willing to take the time from doing other things that you could be doing to provide such Interesting content! Also, that you do so in such an easy to understand manner! Thank you, sincerely!
You are sincerely welcome!
I'm so glad to have this guy to watch,he is truly amazing
I used to work at a transformer company and they used sheets of high-silicon steel which were layered together to make a laminated core. Apparently it allows a higher magnetic flux density than solid steel. However I can see that working with sheet steel edge-on to a powerful permanent magnet is a recipe for truncated fingers, so your wound coil idea is interesting.
Thanks!
thank you, great vid. clear to the point w/h no swearing or belittleing. thumbs up
This is such a great channel.
Thank you!
Very slick way to build a yoke. I will definitely consider using this in the future. Thanks!
Once, again: POW! Right out of the park!
Excellent, well done, and interesting.
Thank you.
You are informative, concise and to the point. Many other's seem to think that they should also entertain the viewer? Thank you!
Amazing that you can make a relatively uniform magnetic field with almost a whole 1 Tesla of field strength. The strongest magnets I ever used were 3 Tesla, and those were liquid-helium cooled superconducting magnets in a Bruker Spectrospin 300 MHz NMR machine about 15 years ago. Go back about 40 or 50 years, and 1 Tesla would probably have been enough to do some basic low-field NMR experiments. If those super-strength rare-earth magnets had existed then, I'm sure they would have been used for that!
Of course the added problem with NMR is that the field strength around the RF probe (which is where the sample-tube goes as well) has to be ABSOLUTELY UNIFORM - no variation at all. NMR instruments typically do this with secondary electromagnet coils called shim-coils, in which the current is adjusted to even out the field strength. In the early days this was done manually while keeping your eye on the field-sensors, but this utter tedium was eventually taken over by a computer, which could do the adjustments much faster.
I wonder if there would be a way of combining the permanent magnet array you show here with a bank of electromagnetic shim coils to make a perfectly uniform field? A standard NMR sample tube is only 5 millimetres wide (with a 40 millimetre sample depth), so the cross sectional area over which the field needs to be uniform is fairly small. If you could do this, you would be on your way to making the core of a home-made NMR instrument. Minus all the RF transmitters, receivers and amplifiers of course, which are a whole other headache.....
I'd like to thank you and the people involved in your RUclips videos. I work the Natural Resouces Canada in a combustion lab and we are in the process of designing and building a Magnetohydrodynamics project. This subject is not aligned perfectly with our expertise. We have learned alot from your videos and it has contributed greatly to the final design and hopefully the success of the research.
Thanks! That is really nice to hear.
9:25 I'd be totally down for more inclusion of struggles like this, genuine spontaneous emotion is beautiful!
I'm always impressed. Am always even more impressed upon realizing that so much more work than we see has gone into your videos. Much gratitude.
Thank you!
That feeling when your father is a mad scientist and has you help him with the experiments.
"Hi, we're broadcasting from Beautiful Skullcrusher Mountain..."
@@russellzauner sorry, I don't get the reference.
_"Get in the magnetic field Son-ji!"_
Loved this comment....
So cool it’s you and your son giving the world knowledge… thanks guys! Super interesting topics!
I love this nerd. Makes me feel better about my nerdiness
Glad to be of assistance.
Thanks!
A man with excellent bench work and theoretical knowledge. Good work sir. One day I will fund you!
I didn't even think of how the field would interact with the tools, I was wondering what was happening. Interesting concept, manipulating a magnetic field is significantly more involved than I thought!
Very ingenious solution! I worked on MRI's a short while and the experience you had with the channel locks was a real problem I had. Most of our tools were beryllium alloy so non-ferrous but drilling access holes for fiber optic cables around a +2T magnetic was an experience I never wish to repeat. Wonderful video keep them coming!
I can't believe this channel doesn't have millions of subs! Amazing content guys and girls :)
Mister, you have great presence. I could find you in a crowd in 2 seconds. This was a really great video, obviously the subject well thought out and something of interest to you, as well. That little laugh at yourself got you a new subscriber. Thanks for what you do.
I always learn something on your excellent video's. Thank you as always. Regards Sarah
Thanks for including centimeters as well.
Super clean intro! Congratulations on that. As for the content, I have no comments; it's SUPERB as always.
I wrap lots of wire and built an aluminum jig/fixture that goes on the lathe and uses the threading settings. Hardest part is like you mentioned chip cleaning before when using magnets. I spend more time in prep cleaning before than I do wrapping.
More wonderful stuff :) Totally enjoy your work, ingenuity and the demos, thank you.
You're welcome!
@@TechIngredients Your Channel Is Overpowered
This channel deserves more views rather than other youtubers doing sh*t to get famous, for MONETIZATION. I just love educational videos and discovery.. videos like these will teach future generations for years to come.
Man, intelligent people just make better content. Tmbs up.
Thank you!
Did one walk by in the window? I missed that person because all I saw was someone who does not have any clarity of magnetic fields talking too much about nothing.
@@lifeunderthemic You're right. I shall just head on over to your channel and peruse the wonders of ... wait, there is nothing there.
All talk I take it.
@@lifeunderthemic STAHP DELET COMMANTS !!!111
"Parishna what are you talking about? How does a magnetic field work? Why do so many ignorant of rack defend what they are clueless of? You could have just looked at my page instead you don't stfu and continue to say not a thing. Why is everything in constant motion on this planet? What is seen everywhere in nature as well as in a simple magent that is not relayed? Need a hint? Look on the top of your head and on the tip of your toes. People love to watch videos and live clueless today. "
YOU DELET, I JUAN.
Ahhahhahaha
@@lifeunderthemic What specific aspects of his understanding of magnetism do you take issue with?
The fast forward is a great way to show things. TOT does that on his machining videos. I'm seeing the makings of a rail gun
I'm auto hitting like before even watching. That's how good the content is
Thanks!
me too
NS Gaming: But that's not very scientific is it?!
Right? I automatically hit "like" before I watch because I know I'm gonna get so engrossed in the video I'll probably forget to later. I've never not liked one of your videos so I know it's a safe bet. Please keep it up. You deserve so many more subs!
Speaking of myself only; I am not sure how useful this is for me but I guarantee you it is mesmerizelingly interesting. I haven't been exposed to a more interesting site than yours and you have a gift for explaining the principle properties of these subjects in such a through and clear way that I "almost understand" them! But, as I'm sure that the majority of the viewers would agree, we aren't in your league. Please continue this facinating site, I haven't found any other sites that come close in interest level and especially not in your scientific method and working knowledge. I'm a big fan!
Thank you!
when are we seeing the Magnetohydrodynamic motor/generator using that large gap magnet?
Everyone and their brother (not really) has done a mhd motor with conduction. I'd like to see it done with induction.
@@kreynolds1123
How does that work?
@@robbiejames1540 if you change the current in a coil, it creates a changing magnetic field. That changing magnetic fiend induces a current in a conductive metal neat by. The currents in the metal create their own magnetic field in opposition to the initial magnetic field that induced the current. The result is a repulsive force pushing the conductor away.
A Pulsed induction thruster uses a coil to ionizes a gas for a working fluid to use for a thruster to genetate an intense and rapidly changing magnetic field. once the gas is a plasma the changing magnetic field from the coil induces a current in the plasma and that current in the plasma makes its own magnetic field opposing the magnetic field in the coil thus pushing plasma away at a high speed for thrust.
en.m.wikipedia.org/wiki/Pulsed_inductive_thruster
@@kreynolds1123
I see! That's really clever.
@@kreynolds1123
Presumably, that would also work with any sort of conductive material - so you could shoot a plate of metal with it too?
What a great video. I’ve always wondered what other ways would work to strength the magnetic field. Big blocks of steel are expensive and dangerous and hard to work with. The wrap technique is something I can do and maybe not have every nut and bolt require that it be scraped off my bigger magnets. Thank you! Thank you! Thank you!
JTI
Very cool but i was chomping at the bit to see the rest of the water cooled solid state refrigeration system
When you don't want the nut to move, use two and tighten them toward each other and that could alleviate pressure on the carriage device in the middle. You could have saved on the bearings at the ends.
Cool video!
Not only are your videos inspiring technology/science wise, they also make me aspire towards having a tidy lab and to develop a more pragmatic approach to my builds and projects. Looking forward to next video whatever it may be!
Definitely one of the top channels on RUclips. 👍
Thanks!
I
LOVE
LEARNING!
I love everything about this! I've been making products with N42 mags. Once I discovered "CUP" aka "POT" Magnets, it opened up so many more possibilities.
"So I built another assembly to make this a little more convenient." ...I was all hyped up for the lathe. Not going to lie, a little disappointed. Maybe in version 2.0, because if there's one thing I've learned by watching your channel, it's that we never see anything just once and you're always improving. Thanks for doing what you do.
Whoever edited this video is quite clever with the bulging of the scope, I like that.
Excellent video as always! Please don't stress yourself on the whole metric vs imperial measurements just to please some commenters here, the people who it really matters to can easily convert. You make astounding content and we all look forward to you sharing your ideas!
Actually, I don't. It's a bit of an inside joke. The most avid proponents of metric acendency tend to be the same people that look down on Americans because most of us are not multilingual!
Whats really funny is that the Intelligentsia who call us stupid for not using metric as the superior way, never get the joke in the joke when we tell them to come back when they make it too the moon. Not only haven't they made it to the moon unlike us Imperial users, they haven't made it even though using the superior metric systems... :)
I want to thank you for doing really interesting things on RUclips instead of nonsense stuff which their is to much of. Good day and peace too.
Thanks!
@@TechIngredients Sorry for the slow response TI. This method I have used numerous times and I have you to thank. Good day and peace to you too. vf
Bailing wire! Almost as useful as duct tape! Fascinating project.
Baling wire has kept a hundred years, and billions of miles, of Ford products running. And I'm betting there's a stash of it on the ISS.
This is the most underrated channel on youtube.
Seeing the title I was hoping we would finally get to see some cerrolow 136 being shot into orbit by that monster magnet yoke... but winding magnetic circuits is also an interesting idea :).
your approach is wonderful you are a bliss to see !
This is a modern, much cooler, Mr. Wizard show!
This guy is awesome, its like a fun lecture every video....wait.......it is. very easy to follow, great stuff.
Interesting. Makes me think of Edward Leadskalnin works and why he used so much iron with his builds.
As a fabricator, contractor, tradesman, craftsman etc., I know a working man's hands when I see them, so, two gnarly old man's working thumbs up to you sir!
No sissy textbook teacher here boyeez!
Man, you are a mine of knowledge !
An interesting concept. Having the flux path wrapped around the magnet will help prevent eddy currents.
One of the best channels on RUclips. Was wondering your background. Any videos talking about you, or telling what you did before or currently? I guess College professor.
Ryan Fiorini They're notoriously secretive about their identities.
@@brainmind4070 Thanks for that. I just started watching.
The same people who make sure it gets fed to you make sure you have no idea of what the magnetic field actually looks like, if that helps you gather to whom they are affiliated with. This is a common thread with many of the YT technology channels today. They like to high five one another in the comment sections as well. Probably right next to each other having a coffee thinking about how to gloss over any comprehension of simplicity in design and why that is.
@@lifeunderthemic .The Ellumin-Magneto-ati
@@cannaroe1213 LOL I like it. The grants and funding suppliers at work to keep the same page from ever being turned. Simple comprehension of magnetic fields shows that we've been handed a misrepresentation in crafty sleight of hand.
I, as one, feel that having intelligent people presenting the content works much better, but having worthwhile content on the show makes everything interesting to watch also
I had to laugh a bit when the proper tools were not right there ready to use. Another good show, thank you. Michael said that bye for now my friend.
Would wrapping the copper wire more uniformly with tension help align the magnetic field's better for a higher Tesla Rating???
Copper is not ferromagnetic and neither is aluminum. Although this wrapped magnet looks something like a transformer, the wire serves a completely different function. The wire in a transformer guides the electron flow and it is these electrons that generate the magnetic field. This steel wire guides the magnetic field which is generated by the permanent magnets in the center.
this type of content is the pinnacle of youtube
Would two opposing Halbach array's of magnets also help increase the magnetic field strength inside the gap?
Nice!!! two water-bending magnets placed close together!!!
Brainiac & Tech Ingredients uploading _magnet_ videos within seconds of each other :)
I love when Tech Ingredients upload videos. When it´s about magnets I'm in paradise xD
Magnets rock! :)
Man I love this video, and the savvy behind it. Good show!
I mean this in the best possible way, this gentleman reminds me of a cross between Mr. Wizard and Mr. Rodgers. You older folks like me will remember both.
Wish I had time to just set and watch all your videos, great stuff!!!!!
How about using steel ribbon instead of wire? I'd imagine it would be more expensive, but it could be easier to wrap and far more uniform.
Good Idea, even though he did say its only the cross section that is significant. But there would probably be some increase. That's basically a packing problem. Like you said it probably wouldn't be worth the cost for the few percent(if that) increase unless you had some laying around. Or perhaps even just cut long strips of sheet metal.
My intuition (which is likely to be completely wrong) makes me think that two opposing C-shapes out of steel ribbon would be even better as guides but it would not be as practical to build, especially not in a continuous additive process.
The ribbon would work, the result would be more compact, the ultimate performance would be the same and the cost would have been higher
Clem Taylor agree! cold rolled steel wrapping around as used in low frequency transformer style would increase permeability which could increase the inner flux( my thought). Improve rejection to the eddy current to? if the experiment required to reduce the hysteresis loop of the wrapping material then could be a good idea. Good comment Clem.
Keep going! Very informative and recreative topics
I built a magnetic knife block for my kitchen and it was such a pain putting it all together in the woodshop. Those little neodymium magnets are very brittle.
Your an inspiration to us all . God bless you Sir. You too have a lovely evening
Thank you for sharing. Very informative with a touch of mild humour (I'm Canadian).
I have have a thought for your consideration if you are planning to wrap more magnets. Swap out the threaded rod for a wooden dowel slightly longer than the mounting bracket. Use non-ferrous materials to secure the magnet assembly. Attach a drill to one end of the dowel to drive the winding (a lot less strain on the arms, hands and fingers). Would also suggest that you fabricate a spool to hold the wire and run the wire through a series of dancer rollers or pullies. This will help to apply a more consistent tension on the winding, not to mention that this would free up your videographer to do videography.
Just saw the upload date. Story of my life, the ideas and witticism come well after their usefulness, oh well. Carry on you're doing a fine job.
How do you make a stronger magnet?
Get it to pump some iron and wrap the flux out of it.
Excellent!
Magnets how do they work?
Minutephysics did a pretty good job of trying to explain it in a concise way in this video. ruclips.net/video/hFAOXdXZ5TM/видео.html
Definitely magic. Check this out (there are better videos showing the effect but this one is good nonetheless) ruclips.net/video/r9Kg69cQteg/видео.html
it's a fundamental force. it just works. like gravity
@Drinkin' I guess they don't recognize miracles.
Excellent work! I will continue to watch all
Thanks!
You were talking about *_magnetic flux density_* (in tesla), not the *_magnetic field strength._*
Please try to use the correct term. I know everyone uses the terms incorrectly, often including myself, but it´s a big difference.
@@invendelirium Yes they are proportional in this case.
It´s just something that can be confusing, making it important to use the correct term.
Very clearly explained and demonstrated. Thank-you. At those field densities, you're within an order of magnitude of the field strengths of superconductor electromagnets - and for a much smaller cost, in a safe manner, albeit within a much smaller volume of influence. You've gained a subscriber today.
Thanks!
If you can afford to reduce the volume further, two tapered, steel pole pieces in the shape of a pyramid or a cone can more than double this field strength.
@@TechIngredients Yes, it's an old idea which has been used professionally. I have a magnet which was rescued from a scrapped 1950's magnetron and which uses that technique to concentrate the field.
Think I am going to call you the "Walking Technical Wikipedia" from now on :)
You made my evening scienterrific, thanks.
My dad would have smacked me upside the head for trying to use channellocks instead of wrenches to tighten the nuts.
My dad might have had the same thought, but avoided it, fearing an endless debate about why do we have channel locks anyway.
Ha! reminds me of the time I needed a pole for my rain gauge. So, idiot me sawed the head off my mum's broom and broke the blade of my dad's hacksaw in the process. The light of truth hit me when the broom head hit the ground: Annoying one parent was dumb, both together and I was dead.
My dad's comment: 'I told you to never use a metal cutting blade on wood.' He attaches the broomhead back to the handle and takes me to buy a new one for my rain gauge.
That would be GREAT for storage rings. So brilliant!
Lol, I love how annoyed he gets at reciting the values in SI! Because you know, 3 furlongs and a sparrow's claw is superior to SI units XD
Sparrow's claw? Is that a Vesper Sparrow, Savannah Sparrow or a Grasshopper Sparrow? :) I hear somewhere that Crowsfeet were used as a measure of time in some places.
I like the way that you explain the process
Great Idea! Helped me a lot. Thank you.
Channel deserves much more subscribers compared to most others that use gimmicky graphics, and borrowed filler content 👍👍. Wondering, what would happen, if the wound bobbin(made of laminated mica) of steel is taken out and melted to form a solid block(easier said than done).
On another note, seems like an efficient way to laminate(assuming a thin high temp insulating varnish on the steel wire), to make a low frequency(several hundred Hz)power transformer core, without needing ferrites and high frequencies, while still almost eliminating eddy currents without using the typical laminated El steel plates. Just some 💭
Your work place is beautiful. Very nice and clean
Thanks!
Useful to me in many ways. Thank You.
Kudo's for using the proper SI unit tesla. At the risk of splitting hairs, strictly speaking, your meter is measuring magnetic flux density, not magnetic field strength (your wording), for which the units would be ampere per meter (A/m). They are related though, for a given set of circumstances and materials. I like your shop BTW :-) Also, your camera work and editing has improved substantially - congrats on that!
Thanks for the clarification.
Also, thanks for the other comment. Many viewers (and at one point that also included us) do not understand how much effort and learning goes into producing a good video that is easy to watch. We are still learning!
I always enjoy your videos. Thanks for being a great teacher.
I would be curious to see you do this as a halbach array and see how powerful the center would be.
Hi Tech guy that's why they use these in voice coil HDD because the lines of force are compact enough not to affect the platters.
the coercivity of modern platters means you could wipe one of these across it basically and not lose anything.
@@GigsTaggart Yet I have destroyed hard drive low level formatting by having a very strong magnetic field near to them when they were not in use. It's handy for destroying the data on a drive before disposal, and without having to dismantle the computer, but it's expensive if you do it accidentally.
@@RWBHere unless it was a very old hard disk or a very, very strong field, I don't believe you. Degaussing a modern platter we're talking several Tesla.
this man literally gave me motivation to keep studying engineering, shit i was losing hope and this man showed me what i wanna do when i grow up older, really thankful for this
Fantastic!
Don't compromise on what you really want to do because despite a distant horizon, the journey is also worthwhile.
So if you wanted to make things easier in some ways but harder in others, I think you could just heat the steel blocks you wanted to contain the field up above their curie temperature, stick them in place and then VERY QUICKLY quench them before you got the neodymium magnets close to their own curie temperature.
Good idea. And once you have enough wire you can add solid steel blocks above it in a much safer way to get all the way below saturation.
That is a good idea.
Amazing video! i would suggest to cover with sticky tape the ends of the bore of your assembly when not in use, is so difficult to clean such bores when metal debris gets in there! Anyway something that i been wanting to ask, is there going to be more content about lasers, specifically that monster dye laser? :D after my first successful dye laser (very small just about 2mJ of energy :( ) Im planing to build a powerful one by making my own capacitors out if oil impregnated paper, my idea is to make the capacitor as a roll with a bore in the middle with axial connections to place the laser cell inside the capacitor that way i reduce inductance to the minimum. The biggest issue i been having so far is finding an appropriate enclosure for the capacitor, all plastics seem to be too permeable to water vapor and the oil's break down potential is very sensitive to it.
We will demonstrate that laser in a future video. I have built a number of those rolled capacitors. You can see some of them in our much earlier video covering a modified medical dye laser. In my opinion, despite the promise the equations give for these high voltage, low inductance capacitors, I would recommend surplus discharge capacitors from say, eBay. These can be had for the cost of the materials you will need for DIY caps and usually work better as well.
@@TechIngredients Great! ill eagerly await for the video :D. Yeah you are right, one of the reasons i started pursuing the self made caps is the equations are quite optimistic specially if i can manage to achieve a break down voltage of the insulation of 60kv/mm. I considered buying surplus caps but sadly i haven't had any luck finding them at a reasonable price with someone that can ship to my country (I can't find anything were i live that can work for such laser), also the shipping is quite expensive for the large caps. So i kinda got too excited after seeing it might be possible to make my own ultra low inductance caps out of relatively simple materials but is turning more difficult than i thought mostly due the problem of making a housing that insulates the end plates-connections but also that isn't very permeable to water vapor, glass would be great, ceramic perfect but the cost of a tube of the size i need nulls the advantages of making my own cap. But well i see you have gone thorough this already so i will put a good deal of consideration to keep searching for a surplus cap, i might hit the jackpot and find a pallet with pulse caps like the ones you found for very cheap, i might even ask for a loan to the bank just to get them haha. Mm this comment is already quite long, sorry about that, i become very excited when i think about this stuff. Thanks for your advice!