What Happens When You Spin Ferrofluid Super Fast?
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- Опубліковано 6 бер 2022
- I put ferrofluid in an alternating magnetic field
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It looks like two black hole colliding together
It would be cool to see ferrofluid in a rotating magnetic field from a 3 phase magnet. Maybe we could visualize the field rotating if the frequency was low enough.
Your videos are always so interesting. Your physics demonstrations genuinely blow me away with something I didn't know the existence of!
This is so cool!!! You make science and physics sound so cool!!!
this was really neat to see so many different demonstrations with magnets and the fields they produce.
Thanks for all these fascinating experiments!
Props to you for your dedication towards science, specially physics. Most people feel averse to physics, but they don't understand that it explains everything around us. How the world works essentially.
These videos can have very positive and wonderful effects on young minds, may be even push them to pursue science as they get older.
I only have one minor suggestion. Videos will have a greater impact if they explained everyday phenomena. You can also notice this from your views. The ruler trick and the putt putt boat videos got over a million views, because we have all seen these, but never asked ourselves why/how they work.
More of this please! Very very cool!
A though just came to me, especially after the AC magnet at the end. With such high speed flipping of the magnetic field, the magnetic particles in the ferrofluid must also be flipping to align to the magnetic field. Does this result in an increase in temperature due to friction with the carrier fluid?
I'm wondering this too!
I'm sure
Induction heats metal. This is definitely metal, even if it's oxidized. The whole system heating up (including/mostly the core screws) is probably why he limited to a few seconds per shot.
Induction doesn't heat all oxidized metals. Inductive heating requires delocalized electrons. To test this, I put a Tums (calcium carbonate) into an induction heater and it didn't warm up, even though it contains (oxidized) calcium.
i mean it isn't heating it up that much or that quickly since he literally put his finger in it for a bit after it was running and the only protection he has was latex or nitrile gloves... so even if it does heat it up, it didnt heat it up too quicky or to the point it was too hot for him to keep his finger in it.
excellent demonstration of magnetic fields......thank you for your time and effort
I love this UA-cam account, it is always so interesting and I learn something in a fun new way
I asked for him to put it inside an induction motor once. I'm so excited that he did something along those lines! Very cool!
Absolutely fascinating! Thank you for sharing. Yes that ferrofluid has to be the messiest stuff on the planet - it's like used engine oil full of metal contaminants, will stain just about anything!
I know right. Atleast this stuff can get removed easily
Wondering if I can bottle my used engine oil as ferro fluid.
@@moomoocowsly no
Can this stuff put in teflon?
@@moomoocowsly It’s just iron suspended in a lipid. I wouldn’t eat the stuff, or put it in my eyes, but I can’t see any possible health risk. We’ve been handling iron and oil for millennia.
such good videos . Love your channel
Never took as much of an interest in science and physics until I started watching this channel. I'd fly to wherever state he is to take his classes if he was a school teacher
He’s a Senior High School Physics teacher in Anchorage, Alaska.
@@JesusisJesus very kool!
@@GunakillyaOG disinformation in action...
Actually he lives in Oregon. His name is James J. Orgill
It looks like some kind of Venom Symbiote
Use a tone generator and different frequencies with a electro magnet to see the effect of different wavefoms. Should be a easy setup coil, audio amplifier, and a tone generator phone app.
Search for "Nigel Stanford - Cymatics" in YT. It's a music video, and there is a behind the scenes video also, it's cool.
Awesome bro
Keep up the good work
So freakin cool man. Love this channel
Way cool loved it and love your crime scene LOL
The problem with ferrofluid is it is not showing the density of magnetic field very well. Also ferrofluid I think is not attracted to a magnet as strong as other magnets. (Centrifugal force can detach ferrofluid from a magnet easily so my guess is that is not a very strong attraction force). Could magnetic or iron dust look different in similar experiments (inside rotating magnetic field)? Thank you for sharing!
this man never ceases to amaze me
The ferrofluid catching itself is so cool.
Homie out here doing homemade UFO tech
Oh, how much fun that must have been! You should definitely try this with a polyphase arrangement of coils and a variable frequency! Just like an induction motor, but with the ferrofluid as the rotor. ;)
I love your videos! Looks like you're here in Oregon too? I see your Mt Hood shirt, I've been working at a ski area in the southern part of the state for nearly a decade. If you ever get down this way give me a heads up!
There are no “lines” in a magnetic field. There is just the field. “Lines” appearing in the ferrofluid are simply created by the aggregate alignment of the ferro-particles in the fluid.
This can be proven by doing the metal filing experiment a number of times. The “lines” will be in different places with each test. The “lines” in the filings experiment eventuate because each metal filing is literally turned into a mini-magnet and they are just lining up (meshing) end to end because of the poles aligning with the general field, which is actually a 3D dual toroidal shape, where one torus form the North Pole field and the other forms the south field. In between them is the accretion disk, which also appears in the filings experiment. Check out Ken Wheeler (Theoria Apophasis on UA-cam) for deeper magnetism explanations.
I really like this dude 🤘
2:23 Well now I want to see him boil water on a coin lol
The magnets in the drill is like watching one of those taffy folding machines ...
Waaw this is what I've been waiting for🤩
I barely understood, need more, this is cool.
Here's a explanation of why the ferrofluid on the spinning magnet plate stops going crazy at high speed and act as if the entire magnet is static but weaker.
The entire setup becomes stable because the time scale for "ferrofluid goes from flat to spikey" is significantly longer than the time scale for the magnetic field's period, and the tiny perturbation from each half period becomes insignificant compared to the average. Remember that the force the ferrofluid experience stays the same whether the magnetic field is pointing out of it or into it, and also that for this experiment, that's the only thing that affects the behavior of the ferrofluid.
You can verify this by increasing the viscosity of the ferrofluid and watch as the pseudo-stable state form at lower speeds.
It's a bit like how you stop getting stuck running your nail over a comb when you do it fast enough, but will when you do it slow. The time scale of the force you push your fingers against the comb pushing your finger deep enough to get stuck is much longer than the time it takes for your nail to go over one tooth and reach the next, so you stop getting stuck as your finger doesn't have time to...get stuck.
For the drill, the explanation is similar: it's to do with the time scale of things, but here the exact events are different.
In this ferrofluid, the spikes doesn't have time to gain much speed before the magnetic field leave and came back from the other side, pulling it the other way. Still, because the ferrofluid is moving in the same direction as the magnets, it spends a little more time getting pulled in the direction the drill is spinning than the opposite direction, so in theory the speed will still build up a little with each period if the experiment was done in a vacuum and it doesn't fly apart. However there's water, so drag stops it from going at any real speeds.
You can verify this by having some kind of marker (a drop of colored ink should do) in the ferrofluid, and you'll see it slowly rotates even when it seems stable, and if you graph the ferrofluid's rotation speed against the drills rotation speed, it'll asymptotically approach a limit towards infinity drill rotation speed.
Magnetizing this type of material? Different emulsion components. There's some interesting possibilities like valves with no moving parts.
Always fascinating to see what you come up with next.
I'm wondering if there's any way of using (some form of) Ferro-fluid to create a very powerful electromagnet...
Does what you're doing work in inverse? If you pumped ferro-fluid round & round through a conductor fast enough (eg: a tubular copper ring/or plastic tubing surrounded by a copper wire coil), would it generate a perceptable magnetic field?
What if you made of ferro-fluid with liquid Oxygen as the liquid component (or some other extremely cold liquid), would this significantly amplify the effect?
Beautiful. Perfect for a sci-fi movie special effect...
Would've loved to see what happens with different wave forms in the electromagnet. Sine wave, triangle, square, saw etc.
4:14 that is the most electroboom setup if I've ever seen one. All your missing is for the coil to set on fire or you shocking yourself.
Really cool video man!
No one :
Him: casually generates a black hole
Awesome video! So many future applications could come from Ferrofluids. Would be awesome to see it in vacuum so it doesn't have the drag of the brine solution.
I like your Mount Hood shirt!
Every time this man is with a good idea
Oh, I thought you'd get a warp bubble or some anti-gravity... but this is also cool.
Looks like Venom in having a bad day! 🤣
This reminds me of Hans Jenny's cymatic soundscapes. Inspiring and fascinating.
Great video
Are you in Oregon?! Is that shirt for Mt. Hood the mountain or Mt. Hood Community College? Given your content, it could be either
Where did you buy your ferrofluid?
Now thats space right there
Hey. What mic do you use?
Looks like Venom😂
Definitely the coolest thing I've ever seen.
Very cool video, dont know how any of this works, but always appreciate an experiment
I love your videos
You can make ferrofluid dance by syncing up the electromagnet with music.
(rig starts levitating)
I kinda want to see it if you play music through the magnet coil. How cool would the different tones look?
Where is the video for your induction cooker?
That big magnet wheel spins around like John Cena's WWE Championship belt. XD
Ferrofluid (self made) on top of a magnetic stirrer. This is what I did as well, back at school. Took it to a science fair, it won me 50€. Several years later, I now have a PhD in chemistry and work for one of the most advanced companies on the globe. Pick your trajectory early and watch where it takes you.
@@cdollar67 I didn't phrase it well. My suggestion was to make some smart decisions early in your life that will benefit you your whole life - even without constant intense work input. Like picking up chemistry for me. Never really worked too hard because this is MY THING from the very beginning. And my degree now gives me every possible freedom I could ask for. Maybe you want to do some sports early on, you'll get an athletes body - and you probably keep it for a long time, because you enjoy doing sports. Maybe you're good at crafts. Or maybe you're super nice around people. It's not always work related, but I do think if you make some smart choices early that also fit you as a person, this "trajectory" will carry you far in life.
This is so amazing. You have to do a collab with the Slow Mo Guys!!!
You know those little desktop fountains and the like you can buy. I want one those rotating magnetic fields with ferro fluid in if version of one of those...
there are a lot of videos on ferrofluid but all of them just shows what happens when a giant magnet is brought near it (VERY boring) . I was looking of this sort of videos, brings a nice change!
Awesome, maybe this coul be a way to visualize the rotating magnetic field in a three phase induction motor. Probably it would be more interesting at slower frequency than 50/60 Hz
Ferrofluid is such a sci-fi thing.
Are u from Oregon?
Where die you get the Ferrofluid from? Isnt it very expensive?
Please try sealing liquid ferrofluid in a clear plastic tube arranged in a circle. Then try applying different magnetic fields in an attempt to spin the liquid within the tube.
Can you explain again why those spikes are forming? And, will the ferrofluid heat up due to Eddy currents?
I enjoyed it!
Can you make a speaker with ferrofluid? Or produce sound with it ?
Please try making a speaker from ferrofluid by replacing normal ac current though the coil by audio amplified audio signals.
You should try the spinning thing again to see if you can sync your shutter speed up with the rotational speed of the magnet plate .. thing.. you made. I’m curious if you can match it to make the fluid look like it’s totally static
Next experiment should include AC current a various frequencies. Perhaps even to sources at different locations so they can oscillate in and out of phase.
Given the ferrofluid is made with metal nanoparticles, could you use the rotating magnet setup with the ferrofluid as a polishing device? Given metal is fairly abrasive, I feel like it would be a pretty efficient, well lubricated polishing setup for lower hardness, non-magnetic metals.
Super cool experiment. Interesting how the magnetic field is easily seen by doing this. It also reminded that video game World of Goo.
Ah yes, the ferrofluid alibi... nice.
How much heating, if any, do you measure?
Idk why i loved to watch your videos even tho i don't understand your explanations
Its too good for me my brain can't process it
Hey guys.. Is it safe to use induction cooktop ?
Measure the change in impedance of your ac coil and target the frequency for a tank circuit.
Please make a video with veritasium
can this be used in some degree for quamtum physics?
I wonder if by using an electromagnet and pulsing it at different frequencies under the ferrofluid if it would produce cymatic type effects or patterns.
Can you make a speaker with ferrofluid?
How much does the viscosity of the suspension medium for the ferrofluid impact this?
Hi sir how can i get in contact with you ?
4:31 is that sound coming from the device or the ferro fluid?
i thought that might be some cool way of trying to make a speaker/subwoofer.....
can you make something to float on on fluid so that it gets pushed by the waves....like EM momemtum (of photons ) ?
I wonder if it would be possible to get something similar to cymatic patterns on a chladni plate perhaps with a vibrating speaker magnet without any cone or a transducer.
Came here hoping you'd be putting ferrofluid on an induction cooker.
Was not disappointed.
I would have liked to see introducing something such as a table tennis ball or similar to demonstrate that the fluid wasn't moving
Would be interesting to do a ac frequency sweep. Wonder what it would do at it's resonant frequency.
Great video's
Screw the ferrofluid, you had me at LimonCello LaCroix.
I like how you could boil water, what video is that in?
Wow that was crazy.
Alright guys, we survived wildfires, pandemic, invasions. Now get ready for irl Venom.
Would be interesting to see different frequency AC.
Squid on squid crime
Respect 🤝 thank you for all of your wisdom that you have spread quantum physically 🖖