ฝัง
- เผยแพร่เมื่อ 5 พ.ค. 2024
- Hi Spacecats, I'm Dr Maggie Lieu and welcome to my channel, where you can find all things space, astronomy and physics! Diamagnetic materials exhibit a remarkable property - the ability to levitate when placed in a powerful magnetic field. This counterintuitive effect defies gravity and reveals fascinating insights into the nature of matter and electromagnetism.
In this video, we explore the physics behind diamagnetic levitation, a phenomenon first predicted by Sir Michael Faraday in 1846.
Links:
journals.le.ac.uk/ojs1/index.....
www.nottingham.ac.uk/physics/...
royalsocietypublishing.org/do...
Media credits:
Meisner effect: Jubobroff
Superconductor: Energy Systems and Energy Storage Lab
Gravities in the magnet: Dr Richard Hill
Special thanks to my TH-cam Members: Annex Celestial, Wheely Big Bike Trip, Steven Yee, Thomas Seiler, Anders Welander, Bill Fratt, David Brant, John Lewis, SpaceCatLuna, J. Campbell & Jordan Workshop
You can also sign up on my channel page to get access to perks:
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As is usual, your video sent me down a rabbit hole.. I've learned that our planets magnetic field is incredibly weak compared to these " laboratory magnets". Makes sense as otherwise metal would be impossible to use or even pick up from the ground. Thanks Dr Maggie, I'll be spending the rest of the evening having my mind blown by magnetism. 😂
It's such a fun topic! Thanks for watching! :-)
It’s all a matter of perspective.😉 For example, I don’t see this laboratory magnet protecting Planet Earth from solar storms. The magnetic strength of Earth is how many more times powerful than this laboratory magnet?
Something else to consider! Gravity is weak on the ground but as you go up it gets stronger, what’s also more abundant as you go up? Atmospheric electric
@@SpaceMogLuna I'm guessing that is because the Earth's magnetic field is so much bigger in volume, whereas Mog's lab magnets probably have a much higher field strength per unit volume...or something like that?
@@SpaceMogLunaStill, granted that Earth's magnetic field is large, important, and awesome.
I did not expect such a complete answer. I also didn't realize how little I knew about these effects . Thank you.
It was a yes or no question. 🤷♂️
Thanks for the gift and thanks for watching :-)
@@pluto9000 the question was how did she simulate zero g for the experiment.
Space Mog: astronomy channel - "I can make water float, here is where I've been breeding worms..." Not what I was expecting. Great video as always, but so nice to see how scientific fields overlap, like how studying space isn't just telescopes. Nice one.
Thanks!
My jaw literally dropped as soon as you mentioned the strength of your magnets. Liked and subscribed instantly. I would love for you to elaborate on your research.
Thanks so much! 😇
They're significantly more powerful than the 10-12 Tesla magnets in the NMRs I used to support. Worse, they appear to be entirely unshielded. Shielding can't completely contain a magnetic field, of course, but it can shape the field such that more is elongated into the poles of the field rather than the shorter, wider shape your fields seem to have. Our magnets were really only capable of pulling metal out of your hands or pockets if you were near the top or bottom of the can.
That doesn't mean there weren't accidents and near misses. I almost lost my keys once because while keys themselves are generally nonmagnetic, the key RING is. One tech had a whoopsie when she brought a regular screwdriver too close to the bottom of the magnet and it promptly disappeared up into the sampling cavity. We had to get the manufacturer's technicians to depower the magnet to get it back out. Another tech wiped the magnetic stripes on his credit cards because there's nothing metal in your wallet, right?
And if you've never been nearby when one of those magnets quench it's one heck of an experience. Just don't be the one responsible for that happening, the budget people tend to not be happy about that.
Amazing. I used to have to service large computer disk drives that use a rare earth magnets to drive their read/write head actuators. When there was a head/disk surface contact, we would replace the disk enclosure and the magnets due to contamination. We would use these old magnets for various things as they had a very strong magnetic force focused into their center where the coil used to operate. If anyone got near these magnets with a wrist watch, it would immediately ruin them by magnetizing their internal metallic parts. If you got a screw driver stuck on its focal point, it took a great effort to remove it. I can't imagine the magnetic forces you are dealing with. Thank you for your fantastic video. No matter how old I get, I still enjoy learning and your channel is wonderful. Keep up the great work and research!
Thanks for sharing! To get this floating water droplet video, I used a raspberry pi camera striped to pieces with the raspberry pi at 3m distance. I checked every was non-magnetic before. When it came too close to the magnet, it nearly ripped the pi camera in 2, there was a tiny (seeminly) unmagnetic screw which held the camera in a plastic casing. The screw completely ripped out of the plastic case leaving a hole! thankfully no one was in the way because the speeds it was travelling at, it was essentially a bullet! Thanks for watching!
@@SpaceMog😮👍
@@SpaceMog Oh My! Well that's Physics for ya!
Everyone here should like and share. We need real science like this on TH-cam 😊
Thank you lovely 🥰
100%
💯
agreed.
EXACTLY⚡️⭕️⚡️🫶 it’s only a shame that she ABUSE the science for their rollout AGENDAS 2030 PSYOPS!!
👏👏👏 All the notifications, please! Idk why the algorithm hadn't suggested your channel sooner, but I'm happy to have discovered you today ☺️
Yay! Glad you found me! 🙂
All the brain rot content takes precedence unfortunately.
This is whats wrong with our society
I know i am quite science dumb but i feel smarter after watching Dr. Maggie"s videos
Happy to help!
Nice video. There remains the question of rapid mutation and/or genetic degradation of anything placed inside such a magnetic field. I remember this thing that went around the early internet about how to use magnetic fields to mutate horsetail to grow much larger. I actually had a friend show me a resulting plant later when I was studying physics at university (though I only did 2 years).
I turned up the volume louder than regular cause your voice is so nice to listen to :)
Great work Dr Maggie, and really interesting. Thankyou for sharing some of what you do, and also for the wider benefit of science in this field.
Thanks for watching!
Found this video randomly. Glad i did
yay! I'm glad you did too
@SpaceMog reminds me of physics girl, and a few others combined. You have something here. You'll get bigger.
I'm sure you've heard of chemical force also? You have a cross section of several channels and yours has its own unique flavor
An excellent overview of the different magnetic orientations(?) regimes(?) configurations(?), and great information is a breath of fresh air. Because all too often the details are left out.
Ok, this is the first video that I saw in your channel and I am really convinced that it worth to be subscribe.
Thanks and welcome!
I like your enthusiasm! Genuine mind right here
Another great video Dr Maggie. Looks like your channel is starting to take off, you deserve it.
How does this channel only have 13k subs?!?! Happy new listener, thank you!
I got hung up imagining my cochlear implant being ripped from my head.
ouch!
Same with my hip! Scary to imagine!
The 70tesla bass drop that makes you levitate probably sounds mad ill xD
The 19T is pretty loud to be fair!
Not only a succesful & hardworking scientist but also a very good & authentic science communicator. 👑
Thank you for helping us understand science and creating really interesting & educative contents! Feel lucky to discover your channel before everyone else haha!!’ I’m sure your channel will reach 100K+ followers. ❤
We need more hot science 🙏 thank you simulation for this gift
Thanks for watching
Wow, I clicked on this video straight away since I had just watched Veritasium's video on the largest magnet where he also briefly mentioned diamagnetism!
I'm honestly amazed at all the research done at Nottingham, I had no idea this was even in the physics building and that Dr Hill (he's my lecturer this year for N2E!) and you worked on such amazing experiments
Along with Mog's intended effect of educating us about science, she is also inspiring me to find much more interesting background images for my video meetings. :-)
“… this one here is the 19 Tesla and it’s where I kept my worms.” 😂
Priceless, new subscriber! 👍😂
Thanks for the sub!
It's interesting she mentions the term 'space cats' and I recently commented on a scene in the show 'Red Dwarf' with the character Cat being the punchline.
Oh my god Space Mog and Martin Poliakov need to collab.
Because their sciences are similar? No.
Both at Nottingham, hilariously lovable and friendly and adorable scientists? YES!
Do a spacemog periodic videos collab!!!!
Great job explaining these complex topics to regular folks!
I really appreciate the detail in the video. It answers all the questions I had in your previous one! Outstanding!
Thanks for watching
I love her. This is my new favorite channel
Im blushing! 😊
I had a similar thought just a few days ago before seeing this wonderful post!
Thank you algorithms for taking me here! Cool interesting exciting stuff, cute researcher. Subscribed!
Thanks!
Amazeballs! Thanks so much for creating and sharing this informative video. Great job. Keep it up. 😻
thank you 😊
Complex subject expertly and clearly explained with enthusiasm. Also a delight to hear your accent - I'm from Nottingham.
Lovely enthusiasm. Magnetic eddy currents do not create "zero G' any more than regular magnetic fields or helicopters.
what a magnificent and well thought out explanation. Learned a lot here! Thanks as always lovely Dr!
Glad you liked it!
Nice work! I thought you were just going to freeze it, but you really did what you said.
Thanks 👍
I love this video...thank you Dr Maggie!!! I really love magnets
Thanks so much for watching :-) I should do fridge magnets 🧲
@@SpaceMog I have a fridge so that works lol
If humans can be queasy at exposure to 8 tesla, and it would take 40-70 tesla to levitate them, I can only imagine that frog was likely not fond of the floaty experience.
You're probably right
Very informative and concise and straight to the point. Thanks for the video
Dr Lieu. Glad to come across channel. Strange I enjoy astro, theoretical and applied physics. Never seen you.
Algorithm . Sub'd . Wonderful content.
Thanks and welcome
With my invention you can use the same type of toroidal field and have a bunch of spinning electromagnets in a toroidal donut shape all spinning up towards the center of the toroid and have the entire thing encased in a non-magnetic shell and combine this with a Shaker bed to counteract Earth's gravitational pull then you can get the particles airborne for this all metals magnet and isolate metals that people consider non-magnetic at the center of the toroid wild standard magnetic material gets stuck to the outside shell... with the same particle size given the different Atomic weights of the metals you can isolate all the different Metals at different bands and create the most efficient Metals Recycling magnet for this world... this will be very useful when we have abundant energy
This girl is into scientific reality, not spiritual rainbow fluffy nonsense. Ye would be better off by far learning from her, rather than spewing your ignorant delusion.
Metals would need to be pulverized to a fine dust, yes?
@@LordDustinDeWynd yes and having the relative same size dust particles would be important as well for getting accurate isolation bands of specific metals...
Super conductors are cool. 😀
We use them in most of the tokamaks.
I got my Ph.D. at the Alfven Laboratory in Stockholm. They also have a strong magnet like that. Maybe not as strong and only used to play with. There is a similar story about something that flew into it. 😀
We would put big copper plates in the magnet and try to move them. Eddy currents in the plates would then oppose the movement. Also a very nonuniform field. It was a gift from industry and just a toy for us.
Youre definitely more the expert ! Would love to visit your tokamak someday. 😇
Gravity doesn't exist. Everything is electrostatics coupled with density and buoyancy. I believe this proves my point , amazing! Good video!
Awesome! I hate rabbit holes.. i always get stuck! Thanks lol
Nice to know. Thank You for Your time. Have a nice day.
Thanks for watching!
I beat poor old Earn years ago. The levitation of a magnet between bismuth wafers, adjust for magnet (perm) strength, was a school education hit in many locations. Now, the model uses more colorful Crystals of Bismuth.
You’ve got my sub. Excellent work. 17 Tesla magnet my gosh!! No wonder!
Nicely explained ❤ we won't b far behind where v have human transportation by levitation other than maglev.
thank you space mog ^^ however the picture in 9:40 is misleading. It provoke the feeling that each electron of the electron pair separately answers to the magnetic field thus creating clockwise and anticlockwise eddy currents creating magnetic fields one outwards and one inwards, thus also creating the confusion that "why there is an overall repulsion, since it look balanced".
As you probably know, electron pairs are not separate entities anymore, they act like a single boson with -2 charge. Normally in a perfect scenario (unnatural), their eddy mode is perfectly spherical thus non-directional which means those eddy currents do not create magnetism. But in reality, it is non-spherical and there is always a direction creating overall magnetic field caused by molecular interactions, atomic structure etc. But they are non-coherent and there are fluctuations so it act like a noise more than a magnetic field. So when you apply a magnetic field, you orient this "semi-perfect spherical mode" to a non-spherical direction oriented mode, and since you apply the same magnetic field, all applicable atoms will answer the same. Thus noise become a coherent magnetic field caused by the eddy mode of the -2 charged boson called "electron pair".
Edit addition: the more strongly coherent overall eddy mode, the mode diamagnetic repulsion constructive interference happens. But of course to create more coherent answer, stronger magnets are required, but at the maximum coherency, no stronger magnet can induce a stronger diamagnetic repulsion anymore. This is the diamagnetic upper limit of a material.
Awesome background !
A gorgeous scientist... WOW!
Excellent explanation. Thank you !❤️🌸🙏
I was really hoping to see water and/or worms float, but that isn't really a complaint (it is more like reading a book and being disappointed there weren't pictures😂). Love the time and work put into this. Looking forward to more research.
7:11 yes correct... you must use the lenz effect with constantly collapsing magnetic fields which induces drag. Great thing with my system is that you are completely correct but my system does some manipulations to keep particles Airborne using a Shaker bed and this is in conjunction with my All Metals isolating magnet design. Now when it comes to levitation the magnetism is the force driving the acceleration of a Mercury toroid anti-gravity capacitor... it is gyroscopic effects that are utilized to create the effect of levitation... just as magnetism and the electrical force are tied together it is simply just the power source transfer system here...
You'll have to show it in action :-)
@@SpaceMog it's a pretty big machine and I don't have any major funds to create such a powerful system... I've tried to get interest in it but this is previously considered top secret information and they will slowly release it to the population because I'm forcing their hand...
Excellent presentation
Thank you!
Good stuff :)! I've seen electromagnetic movement of water, but the zero G C. elegans worms are something new...
I love you!! Your so adorable XD immediately subscribed !
28 seconds in, instant sub. Gug, that's so cool.
Thank you :-)
thank you again Dr.Leiu. xcellent jo
Nice video, that is a crazy tesla number heh. Superconducting HTS motors are insane for power density, hopefully we discover high temp superconductors soon.
Hey theres the LENZ effect lol... God i LU so much! Ur the best!
🤗
7:06 I might be missing something she's saying, but I've achieved stable magnet levitation by using two magnets with holes in the centers and the poles on the flat sides. By placing a rod in the two center holes and having magnets at opposite orientations the one on top levitates nicely.
Fascinating!🤨👍👍
🐸 We can't know what that frog may have learned in there.
we need to redo the experiment with humans :-)
Could you use a 19 tesla magnet to mine for iron? Would it attract iron and rip it straight out of the ground?
Sure, but its kinda heavy to lug around
Diamagnetic levitation happens when you employ longitudinal EM waves, which are a voltage potential in the Aether. If you took your superconducting magnet coil and rewired it such that it forms a Tesla bifilar coil where positive and negative are paired together and the end of the first wire is connected to the beginning of the second wire, you would have a true diamagnetic levitation device and not a superconducting magnet. Instead of generating a magnetic field, it would generate a high voltage longitudinal field, which is what you are after. That’s when the coil itself would levitate off the ground if say you got it north of say 1 million volts. It’s funny how we have regressed over the last 100 years and still don’t understand what Nikola Tesla actually discovered. Tesla called it ‘radiant energy’. And the term ‘electro-static’ is a misnomer. It’s actually a longitudinal dialectic field, and it registers as a voltage potential on your oscilloscope. That’s also how capacitors work. They create a standing longitudinal dialectic wave, which is a voltage potential in the Aether.
Then why has no One perfected the Tesla bifilar coil. Just like his white cold energy.
Thanks for sharing 👍
Wow thank you professor
Those are powerful magnets! Wonder how it would affect metal in the blood or the graphene in all tattoos created after the 90s.
Ooohh that would be interesting to see
Smart and so pretty..woah.. greetings from Chicago, an EMS tech.
Hi there! and thank you :-)
Amazing! Love your work and ability to explain it clearly.
Q. Do you ever feel dizzy or disoriented when switching the electricity on the big magnet? I'm curious about the effect on Bi-photon and electrical impulses during normal neural synapses.
Thank you, can't wait to see more of your work. Great job, well done! 👏🏻👍🏻💖
Impressive video. 👍
passers-by pulled in by the eyelashes, cheek bone and unique tilt of the head
Can you reveal the amount of water solution in ml the worms are suspended in as shown in the levitation “droplet sphere”? About how many worms are in each “droplet sphere” per suspension experiment? Does adjusting the airflow move the “droplet sphere” into the proper position and height for the gravity simulation level you need or ? Are you finished with all the gravity simulations? Will a grad student be doing their thesis about this research? How long until this project will end and you can do a video about it?
Thanks for explaining in detail the workings of the magnetometer and about getting the different gravity simulations. I hope you get the views it deserves. 100k+🥰
I don’t think there is anything else like it on TH-cam.😎💖
The amount of water is tiny, like 5ml or so. Our experiments weren't actually in droplet, we had them on petri-disks, the water was just for show :-) But you'll find out more when i publish the research im sure! Thanks for the support and all the questions!
I love this.
😀🙂That's so cool!
Thank you
Thanks!
Thank you 🥰
Hi Dr.Maggie. New here and just subbed.
This is a brilliant video on magnetism. Magnetics has always amazed me. Medical breakthroughs have been awesome.
Does this mean we can achieve antigravity? The fact that a frog can be levitated and held in free space suggests that antigravity can be achieved. Would there be a problem using this outside the Earth's atmosphere, as in space? 😃👍
Zero gravity isnt quite the same as antigravity but yes we could get the same effects in space :-)
Perfect.
Thanks!
Does this all mean that you are going to create the hoverboard from back to the future part 2? Because that would be incredible.
Funny you should say that - I made a hoverboard from a leaf blower when I was an undergraduate - it was epic!
@@SpaceMog sounds super fun. What a cool learning project:)
I'm so glad I found your channel, you are the cutest science space mog I have ever seen.
Wow, thank you!
Levitation does not mean lack of gravitation, but a state of equilibrium. 🤓
With such a strong magnetic field in the lab you must have to have some construction techniques and materials different to the normal industry. No plaster sheets with screws. I suspect even the concrete would have to have nonstandard reinforcement as it could cause an excessive gravitational force on the machine into the floor.
I'm guessing there are no standard hard drives near it either.
How far away would you have to have other research labs to ensure the magnetism wouldn't cause effects on their experiments?
I should go in and get a tour of all the signs and fences around the lab 🥼 😆
If you got close to this machine even your eyeballs would be feeling the effects.
Great video, although mentioning some additional example materials for ferromagnetic, paramagnetic and diamagnetic materials would have been nice. Iron - ferromagnetic, aluminum and oxygen are both paramagnetic, and bismuth is diamagnetic.
PS: diamagnetic confuses people, whereas anti-magnetic means the same thing... repels magnetic fields.
Also, I appreciate your explanation that electron pairing causes the diamagnetism.
Lastly, given that most atomic fusion experiments involve the use of hydrogen, would I be correct in assuming that hydrogen is also diamagnetic?
Ohhh amazing 😮
Thanks for watching!
@@SpaceMog thanks for the great explanation and awesome content
this is like a fever dream but cool
19 Tesla. That's allot. I wonder how far the waves reach? 4foot? The next room? I assume if it's more then 8 or ten foot it would have an effect on things in the rooms next to it. The electrical lines for light switches, maybe the plumbing? Careful walking down the hallway next to this room with a pen in your pocket! Could you imagine walking down the hall an then you start floating!? WOW!
Finally I got through Neil Tyson recommendation to a real science stuff😊
yay! welcome!
"we've found a witch! May we burn her?" :- )
A most interesting video, Dr. Lieu.
After all the interesting explanation some how I must have missed the bit where she levitates water.
we suspend the worms in water :-)
너무 이쁘고 귀엽당. 검은 머리에 검은티가 딱 잘 어울린당.
unrelated to the video topic but still about magnetism. first of all, sorry for the silly question - but i really wonder, if we have a satellite with big coil inside it, and the satellite is in orbit so it cuts earth magnetic field, will it generate electricity? i believe it will but it sounds defy conservation of energy since it generates it "for free" by orbiting the earth forever.
Your question isn't silly at all! You're correct that a satellite with a coil can generate electricity through electromagnetic induction, but the satellite's orbital path is not frictionless. There is a very small amount of drag caused by the Earth's atmosphere slowing it down and decaying the orbit.
To maintain its orbit, the satellite needs to use energy, and it will be more than what is generated this way unfortunately
Pyrolytic graphite would be much more accessible than super conducting magnets for most people.
Cool. And not just because of the superconductor requirements!
Dr. Magneto 🧙♀🧲 💙
Yes! Im glad you got more subs this week! I hope this video makes a Breakthrough!! Like and Share everyone 😊
Thank you lovely 😘
Thanks for the interesting video. You must be pretty interested in altermagnets . Do you have any thoughts or expectations in terms of this development? I'd be very interested to hear your thoughts on the matter. The applications of these properties seem pretty astounding to me, but I am a novice. 🤓🙏
Thanks for the comment! I am definitely intrigued by the potential of diamagnetism and the possibilities it opens up, in particular high speed trains and space tech (e.g. artificial gravity for long duration space missions). But while levitating small objects like worms is impressive, scaling this technology to larger objects like humans requires significantly stronger magnetic fields, currently beyond our capabilities, not to mention the cost to run the things! It will be game changing when people discover room temperature superconductors!
Who is this cool lady that's entered my life!
Hello
@@SpaceMog Hi Darling, please keep the scientific research coming, I love me some hard science :)
One take away message may be that an experimenter should make sure to carefully and diligently vet the worms and frogs, so they don't have pacemakers or artificial hip/knee joints before placing them inside a superconducting magnetic bore? ;-)
Not sure why I need this information but WAY COOL though . :O)