I Made a Real Magnetohydrodynamic Drive
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- เผยแพร่เมื่อ 19 ม.ค. 2025
- In this video I show you how magnetohydrodynamics work and how it can be used to make a real working device.
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*Any experiment you try is at YOUR OWN RISK. The Action Lab assumes no responsibility for any injury if you attempt anything you see in this video or on The Action Lab channel.
The Action Lab:* makes a boat that moves using electricity and salt water *
“That’s got to be the best pirate I’ve ever seen.”
Real true
I got real nervous when he put salt
You idiots get ahold of a meme and keep using it until long after it's dead, and you can't even use it in context.
So it would seem! 🏴☠️
@@slappy8941 wdym? I dont see any meme here….
You know idk what a "magnetohydrodynamic drive" is but it sounded interesting so I obviously clicked the video
Lol same
I know what pneumonoultramicroscopisilicovolcaniosis is but magnetohydrodynamic drive.. Yeah man I don’t know what that is
@@kittensarenotfood4466 that's a bigass name. But I don't recognize what it is either since I am dumb I have never been good with these sort of things.
@@kittensarenotfood4466 just like cosmologicalultraquarkfusionedsuperdensemagnetronichypernovagammarayburst
hydro usually means water or liquids magnet attracts stuff. put them together boom water magnet who would’ve thought
4:00, pours the liquid gallium there..
_RIP Aluminium...._
Yep
The Electroboom moment
Gallium actually kills aluminium. Believe it or not xD
chemists would get it the best
@@igxniisan6996 Yeah, I saw that on Nile Red's channel
Neodymium magnet after the last video: I'm still alive!!!
I had two tree stumps in my hand
ha
Cyan sus
@@realtechandspecs hes the only surviver!
This guy never ceases to amaze us!
True
Yes
Dynamics
Im not amaze
@@abnnuzzinicholasclay686 you have no soul
Thank you for teaching this old man something new every time I watch one of your videos! You have taught me on a daily basis. You are a fantastic teacher. Please keep it up if you can. The Magneto hydrodynamic drive episode was great!
I love how The Action Lab does a great job of showing all these arcane wonders unknown to laypeople, and we get his mild bemusement when it works. "Whoa, look how fast it's flowing!" he says, after demonstrating something that looks like pure science fiction.
"after demonstrating something that looks like pure science fiction." stop admitting to being a brainlet out loud. keep that internal, bro
Everytime he says "Hey everyone", I feel educated already lol
agreed
I love this comment.😆
Imagine how intelligent you'd become if he said "Hey everyone" for 10 minutes straight.
@@Known_as_The_Ghost 😂
@@Known_as_The_Ghost 😂
Another splendid, basic-but-surprising physics demo, done so plain that I believe it. Great job again, and the music matches the wow factor.
You are so amazingly sychronous! I just finished prototyping an MHD vacuum pump. I needed a backing pump to clear out remaining gases in a high vacuum. Ion pumps ignore some gases and turbomolecular pumps are too expensive and high maintenance. The ancient Sprengel mercury pump was suitable but too tall, too fragile and too slow. I realized all I needed was a liquid metal slug passing the same Y junction repeatedly as fast as possible. I made a flat circular MHD ring track to pump two molten eutectic alloy slugs around a small loop at high speed. Had to place a small reservior and drop gate between inlet and outlet ports to prevent gas from bypassing the slugs. As one slug plows into the reservoir it triggers a launch circuit to eject a drop from the other side of the reservior which then plows gas ahead of it around to the outlet stem again. It runs like a bat out of hell because it is only turned on once the roughing pump takes things down to 10 microns. And since the alloy is eutectic it's vapor pressure is worlds below that of the mercury originally used for this purpose. I am still working on the final build since it has been a nightmare designing the parts and materials to eliminate all the absorbed gases and keep the droplet from jetting out it's middle while the rest remained behind on the track walls to break up and break electrical contact. I actually made opposing magnets move the drop through the charged channel. This makes the drop force itself together from opposite directions to stop it from breaking up. The external moving magnets then shuffle the drops around the track. Still needs refinements. I am still getting a few X-rays from electrons hitting remnant gas in my DIY X-ray tube.
are you making a spacecraft engine?
What happens when magneto and aquaman combine?
They create the action lab
Cringe
You forget (essential) the Storm for electricity. ))))
@@momcomeplckyt5179 ok stonks sounds good
@@iridios6127 so basically, the action lab is similar to firestorm but instead of a 2 way fusion between a guy named Ronald, and a professor named professor stein, he's a 3 way fusion between magneto, aquaman, and storm??
@@maskedredstonerproz
You get the point ! )))
does the opposite happen ? if you flow an ionic fluid flow through a channel connected with wire, does it produce a current ? I guess a potential application would be sea water power generator that use generate power when the tide rise and fall. Since there is no moving part, you don't need worry about rust or other mechanical failure form the harsh sea environment
Wondering the same thing here!
Action Lab: “I made a real magnetohydrodynamic drive.”
My channel: “Watch me learn to say “magnetohydrodynamic.”
Your channel: Nothing...
@@rid1coza Your Videos: Nothing...
@@quantum-bg of course, but you not getting the joke are you? His channel has nothing.
@@rid1cozabecause its just a joke :!
I would have enjoyed that video :(
Jean-pierre petit from CNRS discovered this very long time ago, that's great that young scientist like you is studying this and show that it is working! thanks for your share...
"Says spell this word at spelling Bee"
lol
Ngl I freaked out when I saw the title but noticed how it’s real easy to spell. 3 words in one. Magneto, hydro, and dynamic
I prefer hippopotomonstrosesquippedaliophobia
The link below is the longest English word.
en.wiktionary.org/wiki/Appendix:List_of_protologisms/Long_words/Titin
This word has 189,819 characters in its name and takes more than an hour to pronounce.
The protein titin.
This is very easy to spell...
Magneto- with the “e” separated from the next vowel, the “o”, by only one consonant, the “t”, it should be pronounced as “magneeto”.
Should have mentioned the full scale test ship that was built. It used enormous diesel generator sets for power, and did not move very fast. And then of course there was the Red October!
Very nice demo and description. Have always been fascinated with the concept. Too bad our seas are not mercury. ;)
This is one of your best informatives videos like magneto levitation, Which was something new for me to learn.
Check out acoustic levitation
thx for experiment. I see great use of this effect in simple rust removal process with electrolysis. You actually get water to flow, what seems useful, maybe.
This was one of my absolute favorites! Go get a Nobel Prize or something dang!
Excellent point with the efficiency! Too often that is the most overlooked aspect of a solution where everybody thinks we (engineers) should be able to design a more elegant design when in reality the best looking solutions are often the least efficient. This is why thermodynamics really should, and often is, taught early in the mechanical engineering programs. Without it or too late and there can be some very embarrassing time wasted on future work.
I think it would have helped to explain better the difference between voltage and current in this system. Does a higher voltage but lower current produce the same flowrate/force? I know the answer but feel this was left open.
The fact im an idiot and don't understand anything, but I still watch this type of videos shows that even idiots can watch videos
U r wrong
@@sinister3921 wdym
that's 99% of his audience including me.
@@YAHYEL-ANUNNAKI me too dude, me too
@@YAHYEL-ANUNNAKI thank god I'm of 1 percent
Learning about this is actually a gamechanger for the sci-fi I'm writing about a futuristic post-post apocalypse society (meaning there *was* an apocalypse, but things recovered now) that commonly employs boat transit to get around (due to both cultural/historical reasons and their reality's Earth having higher sea levels)
They also strive to be eco-friendly, so this also being a clean propulsion method (assuming the power plant the energy came from is also clean) is huge.
The efficiency problem of course exists, but I figure that would improve dramatically because this fictional society has room-temp superconductors and nanites.
What if you could collect the hydrogen bubbles and run them back through a fuel cell that creates the energy to propel it.
That's actually a pretty good idea. That might be able to get some of that lost efficiency back
or even ignite the hydrogen for extra thrust!
Would be a great idea for a submarine or a boat, submarines have massive reactors though so I don't really think its needed... it seems they could use this for stealth technology for submarines
To create hydrogen fuel is very costly, to run a car for 1km with hydrogen fuel but in the process it need to burn 4x fossil fuel for that hydrogen. Btw hydrogen car is electric car, that hydrogen cannot be burned to move your car like gasoline, so another energy loss to convert hydrogen to electric
@@CahyoPrabowo you definitely can burn hydrogen in a combustion engine..
People do it all the time.
I've seen where people do gain some efficiency, especially if they can reprogram the ECU to compensate for the extra oxygen(unmodified the car will sense extra oxygen from hho, and it will dump more gas in to compensate)
Hydrogen has a very high octane, and it also has a better rate of expansion... so this means it can help gas engines run better by burning more gas closer to the cylinder wall that would otherwise go unburned. It also helps remove engine deposits by turning to steam after combustion, which also helps lower nox emissions and cool the exhaust..
There are some methods that are more efficient then others, and I believe people need to experiment more.
The is why UFOs are regularly seen near the ocean ie the salt water. They operate using Magnetohydrodynamics and sometimes coupled with electrohydrodynamics which involves ionizing the surrounding aether via microwave-beam transmitters to increase the conductivity of the surrounding environments and increases the density.
I think you may be able to get more out of it if you increased the plates. If it's anything like electrolysis, anything over 2v between plates is overvoltage and results in steam. If you're using a nine volt battery try putting three or four plates between the cathode and anode. Count the spaces as 2v each. Just a thought. Now you got me wondering. Gotta build one. LOL.
This effect can be produced and with simple electric coil, considering a fact that water is paramagnetic. Set bunch of coils to form a tube, put on each coil one diode (to avoid tank circuit scenario) and start pumping dc in pulses. This is how caterpillar should work :)
Please try this with hydrophobic electrodes. Does it work? Does it prevent electrolysis? If this is too much of a failure to make a video, please let me know.
I love watching and better understanding these concepts the way you explain and actually show us things through experiment and your genuine love for this shows and helps with the teaching/learning aspect!
If you increase the voltage to over 10 kV or 20 kV (I used maybe 30-50 kV) you can use deionized water and probably get more propulsion. (Hardly any electrolysis happens.)
So basically saltwater pool chlorinators can both chlorinate and move/mix water around without any moving parts...
Sees title: Magnetodhydad... what?
Watches video: Ah, yes of course, simple!
Just thought that I can't be surprised to the bottom of my heart with a simple physical experiment. This channel keeps prove me wrong.
Love this channel, cheers from Argentina
Este tipo es el profesor de física que nunca tuvimos y que hubiera sido genial tener en el secundario. A pesar de que habla en inglés se le entiende más que a cualquiera de los que tuvimos respectivamente en nuestros colegios. 😁
Well done. Next step: since there is no moving part in a magnetohydrodynamic drive, there is nothing to stop you from "putting the engine outside" making an external-flow MHD accelerator that can act on the fluid over the whole wetted area, and not only inside a tiny chamber with much friction everywhere else. With an applied electromagnetic field powerful enough, one can then prevent the water molecules to accumulate at the stagnation point in front of the vehicle.
You can do the same with non-conductive liquids too. It works with oil, and you can do it without the use of a magnet. Because oil is an insulator, you need to use the electric field instead - hence why you need a very high voltage.
can you please explain why is it moving?
NICE! Thanks for doing this one! The Hunt for the Red October is one of my favorite movies!
His eyes blink nonstop! Very smart and handsome man
so true, he got that from me!
@@MammaOVlogs which part? the blinking, smart or good looking? :)
That's not uncommon among people this high functioning on inner logical thought process.
@@MammaOVlogs So you really are his mom?
@@hp4z18 Well, he is in her banner, so they at least are parents
Fascinating stuff. Thanks!
wait until this concept is utilized with supercavitation.
I burst out laughing when you casually mention it's making chlorine gas as well. Better not run that experiment in a non-ventilated room
Hmm could it be possible to generate electricity by passing a ionised fluid through the same set-up but the electrodes are connected to a bulb or some load?
wow
There would be a loss so it would be easier and better to just connect it to you power supply
Probably, but you'd have to use more energy in the first place to set the fluid in motion
It is possible, but the power output is very low
It does have use though. The food industry often uses flow meters based on this principle to measure the flow of liquids without risking contamination
USE ALTERNATING CURRENT !
By using an electromagnet and alternating current you can stop electrolysis while still pushing water in one direction.
Starting at ~1kHz there are no bubbles created, but even better, you can use the capacitance of water to push more charges at high frequencies.
I just think you are awesome, such a nice, positive person who really has a passion and does a great job sharing it. Love watching your videos, also do you have a patron or some kind of funding?
i have my university exam in 2 hours now and i couldn,t understand the principle from the book ,owing to the complex ways they define it. Now this is pretty impressive ! real simple and easy.
“It took me two days to read the title”
And as soon as I read it .....
I was like “oh god!!”
Great and simple way to harvest the magnetic force of magnets. Its already being used to propel boats with rotating magnets. Using the force to produce energy is the cleanest and most efficient way imo.
Good Bad or Ugly, I've been waiting years for someone to demonstrate an inductive based MHD vs the many conductive based MHD.
one might google: Pulsed Induction thruster.
The practical concepts of this video are unlimited ……….amazing
Each and every time ! , This guy amazes us 👍❤️, love from india bro
Brilliant video! Really brilliant... and I liked the "incidental" way you mention that even chlorine gas is made by this electrolysis proces. Great video that brouhgt me a big smile today.
And the beans are converted to methane gas, via Mr Petomane
*Well, my friend, i really thank you for making my lockdown* 😉😊😌
Magnetohydrodynamic Generator was my topic for presentation. Glad to learn more about it
5:26 That's gotta be the best pirate I've ever seen.
As a physicist, I have often thought about this problem. One possible technology is peristalsis using magnetic nanofluids. The nanofluid contracts under a moving magnetic field causing peristalsis of the seawater. To be practical, the nanofluid must remain captured. This is one approach to naval propulsion using no moving mechanical parts.
I never knew this really existed. This idea came to my mind and was thinking of testing it, but now am really amazed that it really works.
If this was done in a twin hull catamaran you could steer by altering the current difference between the hulls
his students are the ones who are going to make the flying cars normal
That is so Awesome !!!!!! Great Work👍👍👍
Collab with Steve mould and veritasium!!!
Agreed. These best TH-camrs will all flocculate, in due course.
I wonder if you could replace the pump in a watercooled PC with this? The fact that no-one else has tried it suggests that there's quite a few issues that would need to be worked out first, but it would be cool to see in action.
There's two possible issues:
The system requires a strong magnet to function. This would seriously fudge up the hard drive unless the "pump" was moved a safe distance away, requiring more desk/floor space.
The process also makes hydrogen and oxygen gas, creating pressure and flow issues. Even small bubbles can disrupt smooth flow in the pipes. Get enough gas expanding in a hot environment, and it's only a matter of time before the pipe ruptures. (To add insult to injury, there is the slight possibility of the hydrogen igniting.)
So, a wiped hard drive, pipes taking up space, bad flow causing uneven cooling, water damaged parts, and a small fire. Who said engineering is boring? 🤬😝
"Give me a ping, Vasili. One ping only, please."
the flat magnet you got under the water has the less powerful flux going across its width and the strongest on its edges so you need to configure those electrodes properly over the edge to get better results
Sir can you make liquid metalic hydrogen in your lab.
Do you know what conditions required to make 1ml liquid metalic hydrogen "in lab".😅
There was a serious proposal to apply same principles to space capsules on re-entry, to apply magnetic force against the plasma appearing around the capsule ( although they said a superconductor was also needed to do it efficiently which complicate things ..). The idea was to avoid expensive thermal shields and to permit re-entry at higher speeds) . Could you consider an experiment with plasma, superconductor and a capsule mockup? That would be cool!
Search for "MHD hypersonic flow control for aerospace applications" . Supersonic flight without shockwave is actually possible!
who else re-read the title?...
What’s the problem with the title? I think he changed it afterwards.
@@Think_Inc no prob with the title.
I had this idea as a kid but never pursued it because I thought I was thinking up science fiction. Mr. Action Lab proves me wrong again lol.
*1 minute 1 view*
*Goes to write a comment*
*4 Comments allready uploaded*
tough
Good one. We can use this for gradual stirring without touching it physically.
Man: its actually making chlorine gas as well
Me: NO ACTION NO
minor correction: 2:21 Granted strength of the electric field is an indirect factor along with temperature, electrolyte type and concentration, plate surface area and distance between plated, but all those factors simply effect the amount of current, so it is then that the force that causes the water to flow is only about the amount of electric current and the strength of the magnetic field.
When you're too early to think about a comment.
when youre so early that you copy a comment
when you're so early that you copy a copied comment
For generating electricity from impure water, we can use copper and zinc electrodes, but small quantities of the metal (or ions) get mixed with the water. For this process, does the same happen? If drinking water was used, is it safe to drink then?
*The Water Is A PAID ACTOR* ...lol
Under rated comment
Magnetohydrodynamic drive is nice way to transport if it is optimized :)
I read the title as, "I Made a Real Magneto... hydro... dynamico... Drive-o" XD
Nice experiment ,now i can understand how magneto hydro dinamic work
NASA whats to know your location 💙
If the Jet Propulsion Laboratory of the NASA opens a school of applicated Physics he should be the teacher who give the classes to the students. 😀
@@FedeG86 yea!
You have the best videos man I learn a lot from your videos
Pretend that I said something funny
Haha
Ahahaha never thought of that
Haha nice
It's kinda interesting that I've learned about this principle in high school, except in reverse - liquids passing through magnetic field create electric charges
How he is this intelligent
That's "How is he this intelligent", Yoda. Joshing am I :)
Hunt For Red October is one of my favourite films, so the title pulled me in. This was a great video with a very good explanation. 👍
Jesus loves u all so much
i really liked this video. good job man
25 years ago or so I saw a thing on discovery channel and I think it was called thermal magneto hydrodynamic propulsion it consisted of two Venturi‘s a small one inside a large one and the smaller one was heated by induction and I have not seen anything about it since it was wayMore efficient than what you were demonstrating they even used it as a dredge as it had no moving parts and did not damage small items that they were dredging up it would be nice to see if you could replicate that. Thanks for the great videos!
Awesome video! Thank you!
This is so cool! thanks for sharing!
Try the Saucer approach, two saucers, with the first half being the cathode, and the other half being the anode, a rubber seal outlines the perimeter preventing them from touching. Have the power supply and magnet inside. Then place it in water and see how fast it goes.
I love all these household science experiments! It's really amazing!
Was looking to understand how Magnetohydrodynamic drives work... thanks for your video :)
Best science channel on TH-cam.
Wow ! Truly awesome !! I can see the warp drive is moving in that way .
Could you place it in a stream and produce power? Or would standard hydro power be more efficient?
You could, but the power output would be really small. So far this principle is only used in the food industry in specialised flow meters
It's recommended to use graphite rods as electrodes to electrocute any water without causing unwanted chemical reactions.
Fascinating. What if the 'fluid' is atmosphere? Or even more challenging, the fabric of space?
great experiencing & explanation!
Everything this guy does is simply amazing! He would be a great teacher. I learn something new in every video 👍🏻👍🏻
5:26 Currently, the boat can only go slow with surface tension. If you can direct the water passing through the plates with a pipe, According to the "momentum conservation" can travel faster than this.
4:21 Can you expand on this? I've never seen a setup like that and the gallium makes it hard to decipher where the electrodes are. Are they both inside the cup (looks like one is outside, how does that work without making contact if that is the case?), is one on the wall and one on the 'floor' of the cup? Also, is it flowing in a circle or is it expanding outward to the walls? Thank you!
Really interesting, thank you!