you're a braver man than I, sharing this tech with the 21st century.
@SurajGrewal5 жыл бұрын
Come-on man, at least give us a hint in how cancer will be cured I'm the future.
@IAQMas5 жыл бұрын
Dude! We really need schematics for that turbo encabulator you have in the broken tap bin!
@paullelyukh24225 жыл бұрын
Dude you need to try using the philip sonicare electric toothbrush as an ultrasonic cutter I'm pretty sure it vibrates at 40 kHz! Also tell the The Thought Emporium channel which made a video cuz of your ultrasonci video to try to extract DNA or other biomolecules with it!
@paullelyukh24225 жыл бұрын
Maybe you could cure cancer with gene editing! LOL
@joppepeelen5 жыл бұрын
damn did not know TOT watches this to :) weird how people tend to watch all the same channels if they only liked one of them :)... or maybe not weird.. youtube might be part of that. anyhow i love both of the channels :)
@bigclivedotcom5 жыл бұрын
I wasn't expecting the flow to be that fast or the current so low.
@AppliedScience5 жыл бұрын
Someone mentioned your vid on EO dehumidifiers. I can't believe I missed it the first time around! I never knew such things existed.
@thom12185 жыл бұрын
@bigclivedotcom - I'm pretty sure you "disassembled" a device that kept humidity lower on the inside of the device, by using this principle. You commented on the unique manufacturing of the "solid-state" dehumidifier square patches, as I recall.
@bigclivedotcom5 жыл бұрын
@@AppliedScience I'd known about them for a while, but shamelessly used my new-found KZbin stardom to scrounge a module from them. (They actually sent me a few.) The biggest one that I took apart actually passed a lot of current when initially powered because it had absorbed a lot of ambient moisture. I guess that's why they specify that the power supply has to current limit and not go into hiccup mode. Another odd electrosmosis application is electronic damp courses where electrodes are implanted in a wall to drive moisture down to the ground.
@BESHYSBEES5 жыл бұрын
@@bigclivedotcom plasterer by trade dont do it anymore but done a lot of damp wall in the past, stainless weld rods ive been told by some cowboys lol I only started watching your vids the other day some light reviews bbrought me to your channel👍nice
@wobblysauce5 жыл бұрын
Has nothing on a COB light/solar panel.
@RealEngineering5 жыл бұрын
This is amazing. All in the quest of silent pumps.
@lehanjones2425 жыл бұрын
Applied science: the only channel with 56k views and 4 comments from verified youtubers
@przemekkobel48745 жыл бұрын
Anyone with a fish tank in the house can tell how crucial it would be to have a truly silent water pump. This one would fail though (unsafe due to high voltage, prone to clogging).
@tonysolar2845 жыл бұрын
Time to integrate it into a car.
@shniss54035 жыл бұрын
Przemek Kobel this tech would probably be more useful on stealth submarines
@odriew50145 жыл бұрын
I'm more interested in if this can be used for marine propulsion. How efficient is this process.
@encrust15 жыл бұрын
"There's a lot of complicated math they like to throw in there because it's an academic paper"
@AppliedScience5 жыл бұрын
I don't do rants on my channel, but if I did, I'd rant about the desire for authors to make their subject seem as complicated and difficult as possible. It's understandable why they do this, but doesn't serve the purpose of making knowledge accessible.
@ETXAlienRobot2015 жыл бұрын
totally agreed.. i hate looking at "official" sources/papers for this exact reason!
@badassmastermax5 жыл бұрын
@@AppliedScience i've always seen it as an organization problem and/or a lack of artistic skill to make the paper easy on the eyes, because math is always important.
@mildlyacidic5 жыл бұрын
To be fair, I did a lot of modeling myself when it came to electric fields inside ionic liquids (via Nernst-Plank) and it is anything but trivial. Although the overall concept seems simple, coupling electric potential with ionic movement inside of a fluid is an incredibly nonlinear phenomenon. The PDE solver I used could barely handle even the simplest 1D cases of the problem. Then, if you choose to involve electrochemical reactions, the potential is no longer transparent and that dynamics of such a situation become even more complex, especially when your reactions couple with your ionic species whose concentrations feed back into the potential which then feeds back into the reactions. Eelctrochemistry is one area where I believe complicated mathematics is all but a necessity. My main issue is that researchers working in this field don't seem to make an effort to non-dimensionalize their variables or lump parameters making the math look messier than it actually is.
@ETXAlienRobot2015 жыл бұрын
tbh, i'm lost on most everything you've said, but yeah... there should be more emphasis on making that complicated math readable for those who might actually need to use it. the same problem runs rampant with computer science. There's too much emphasis on complex formulas/expressions/etc, and next to no emphasis on making this data remotely possible to read for the vast majority of people who might have use for it. >.>
@TechIngredients5 жыл бұрын
You got something against magnets? Just kidding. Nicely done with a good explanation. Solid.
@PAKOREGON5 жыл бұрын
looks like you are using a Power Designs 2K-10 power supply. I worked for Power Designs back in the late '60s at their Stanford Industrial Park facility (Palo Alto, California) where the 2K-10 was produced. Brings back some fond memories. Glad to see after about 50 years it is still working.
@n17ikh5 жыл бұрын
The Power Designs supplies are excellent. I own a 2010, a 3650-S, and a 3K10B. All of them work perfectly and are in regular use on my bench, and the 3650 is older than the moon landing.
@spagamoto5 жыл бұрын
Nice! I've got a 2020B! Still works.
@smeezekitty5 жыл бұрын
I just bought a Power Designs 6050D. Never heard of the company before that
@timbdotus5 жыл бұрын
I’ve restored about a dozen of the older 2000 series supplies. The build quality in them was amazing! The main failure mode on them is the thermal switch inside the reference oven. They used a simple bimetallic switch to keep the oven at 80c. You can still buy new switches but it requires completely disassembling the oven assembly, which is difficult to do without breaking the bakelite base. I ended up designing a solid state replacement based on an op-amp, SSR and thermistor. You just drill a small hole in the oven base, feed the thermistor up and seal it in with some silicone sealant. The circuit is powered directly from the AC via a simple capacitive dropper. This keeps the oven at 80c +-0.25c, which is better than the +-3c of the original bimetallic switch. I’ve resold about 10 of these refurbished supplies on eBay and they’ve been working for 5 years now with no problems! I’ve got about 5 Power Designs supplies in my lab, my favorite being the 2020B!
@altimmons4 жыл бұрын
I worked on this as an undergrad. Didn’t get anywhere really took me a whole year to fully grasp the mechanisms at that level and my post doc advisor would just assign me the projects that he stalled out on (which in hindsight was a bit unfair) but it was really interesting. We’d etch borosilicate glass like you do silicon to get these tiny channels. Use 20,000 V (very low currents). They had several applications proposed- though when I went back a decade later it seemed little real “big picture” progress was made (tbf I have not reviewed the papers from the group in a very long time). Specifically my post doc worked on doing electrophoresis of proteins in 2 dimensions using the chip. He and the group used positive charged micelles which moved contrary to the field, non-polar proteins would spend more time inside the Micelle and going the wrong way for the first dimension. The second dimension we’d dump in the same buffer minus SDS sufficient to break the micelles. This would make a second dimension separate on charge vs drag. (First was charge vs polarity ratio)
@rovidius2006 Жыл бұрын
It did not go anywhere but the story lives on ,thanks for sharing .
@erikjarrett4781 Жыл бұрын
I was beginning to think I invented a memory of a similar method of protein separation being discussed in one of my grad school classes. I no longer think I'm going crazy!! Thanks for your story!
@spvillano6 ай бұрын
I remember back in the early 2000's seeing basement "waterproofing" systems being sold based upon this. Even today, I'm extremely dubious without a *lot* of retrofitting of both sides of a foundation wall.
@ilyadorokhov78275 жыл бұрын
Such flow profile distortion also exists for a flow in a packed bed. This is because the packing at the wall is less dense (due to geometry) hence the resistance to the flow is lower.
@SciCynicalInventing5 жыл бұрын
*SmarterEveryDay sees this* "DID SOMEONE SAY LAMINAR FLOW?"
@PacesIII5 жыл бұрын
No. They did not.
@clonkex5 жыл бұрын
@@PacesIII Yes. They did. 12:56
@PacesIII5 жыл бұрын
Laminar pipe flow situations. I suppose...but this is essentially a sealed system. There's not enough force being exerted fast enough to cause turbulence momentum in the pipe, so mechanical laminar flow inside a closed system. Hydraulics.
@arthurmead53415 жыл бұрын
That channel blows
@hubertcumberdale81754 жыл бұрын
@@PacesIII i know this is old but for anyone looking at this, yes what you were aiming to describe is laminar flow. Laminar flow is related to the turbulence, if too turbulent, you can't have laminar. Also a good rule of thumb, if you are not in a pipe, assume you do not have laminar flow unless you have some very good evidence. And hydraulics is purely the study of how fluids move.
@acruzp5 жыл бұрын
You make the coolest things... Also, I truly admire your rate of progress.
@volvo095 жыл бұрын
Yes, nice craftsmanship indeed! and this was a very interesting property to explore.
@acruzp5 жыл бұрын
@@volvo09 this guys eats subjects for breakfast. Every month he's doing something new and amazing.
@electronicsNmore5 жыл бұрын
I enjoy your videos because they're very well made and unique, unlike many other channels on YT.
@TheMattHorton5 жыл бұрын
Thanks Applied Science! Again, I watch a 21 minute video and learn several things that change the way I think about the universe around me. Amazing stuff!
@kentvandervelden5 жыл бұрын
This is a beautiful demonstration with many different directions that one could go with it, to understand and to improve. This is exactly the type of inspiring open-ended demonstrations that should be standard in public schools. Bravo!
@danzuck89365 жыл бұрын
I use to think that Red October was obsurd, impossible non-sense as to its catapillar pump, but now I see I was wrong. Your presentation was clear, technical, and obviously sound scientifically. Thank you.
@spvillano6 ай бұрын
Japanese researchers did build a submarine with a magnetohydrodynamic drive. Inefficient, beyond slow and eventually, the sub ended up out of the water on static display.
@ksanalyticalsystems24385 жыл бұрын
Very well done. I particularly appreciate your taking the time to talk about how you built the apparatus. I think this is often intimidating to would-be scientists and showing that it can be done with relatively common tools is great!
@christopherleubner66333 ай бұрын
Ive used MHD pumps for a few things, the first time was when coming across some cpu coolers made by Nanocoolers. They had a gallium tin alloy and a 0.1V at 20A converter that supplied the magnet pump. The second one was in an E beam machine that cooled the target, it used NaK as the fluid that kept the tantalum taget holder from melting. The pump you made there is essentially an electrostatic pump, one use of those is to pump low pressure gasses from one region to another in vacuum reactors for CVD. It allows a way to very precicely and evenly mix the reactants ❤
@Alexander_Sannikov5 жыл бұрын
> there's a lot of maths they like to throw at you because it's an academic paper man, when you're finally happy with your LaTeX setup, it's just impossible to stop writing formulas with it! :D
@secrecy39153 жыл бұрын
What's a LaTeX setup? Edit: Nevermind, found resources.
@Alexander_Sannikov3 жыл бұрын
@@secrecy3915 LaTeX setup is the thing that you spend 2 years out of 3 working on your thesis
@keystothetruth2 жыл бұрын
Wow! Mind blown! You've just demonstrated how the Earth pumps fresh water within and throughout! Awesomesauce!
@kyleeames82295 жыл бұрын
I didn’t notice the clamp until he took it apart lol.
@TheDungineer5 жыл бұрын
Me too! I was like " what's holding today rubber bits on the end?"
@Francois_Dupont5 жыл бұрын
you blind nigga?
@halasimov13625 жыл бұрын
woah
@ajl94915 жыл бұрын
Kyle Eames doooh!
@ajl94915 жыл бұрын
Francois Dupontbitch!
@Yenrabbit5 жыл бұрын
"I hope you found that interesting"... I sure did! You have a gift for explanation and a knack for finding interesting topics. Thank you for putting so much work into these videos and sharing them with us :)
@Mythricia19885 жыл бұрын
Can anyone help me understand how this actually moves the water, and not just the hydrogen? Maybe I'm lacking some elementary understanding, but if the only thing moving across the barrier is hydrogen, then what does it re-combine with on the other side to form water again? This is really cool, I understand the rest of the video for the most part, but I really don't grok the actual chemistry happening at the barrier!
@camperkiller35 жыл бұрын
I don't definitively know the answer, but I am guessing that it's due to the positive charge of the hydrogen cations attracting the negatively charged hydroxide anions. For example, if an imbalance of H+ and OH- occurs then they will attempt to reach equilibrium by moving together. However the H+ cations are blocked from moving back through the filter by the electric field, therefore it is the hydroxide anions that move.
@a3xccy3795 жыл бұрын
It's partial seperation of H from OH and since the -ve charge forces the H to move towards it, it drags H along with it making the actual flow.
@Electroblud5 жыл бұрын
Just commenting because I also wanna know 🤗
@leebarnes6555 жыл бұрын
There is no separation in the first place, there is only orientation going on with the hydrogen tail. A true ion does not form. The intact molecule is dragged along by it's tail. As room is made at the positive end for more water, it in turn is orientated and drug along as well. Anions or cations are not involved as in theory they are not formed, but in practice most of the energy used is for that 'side reaction' as explained about woeful efficiency near the end. Also note that there is no barrier in reality, the sintered glass media of the filter is just that much more glass surface area upon which the hydrogen tail is made and used to fuller advantage. Oil forms a similar heads and tails orientation with steel crankshafts for example only there it's the carbon head attracted to the iron molecule since carbon will readily dissolve into molten iron. Silicon loves oxygen like iron loves carbon.
@Mythricia19885 жыл бұрын
@@leebarnes655 A little over my head still, but thank you - it makes more sense that there's no actual separation and it's just kinda being dragged along. My chemistry is pretty poor so I'm trying to intuit how it works
@Grunchy0054 жыл бұрын
That’s why you’re more accessible than Thunderf00t: no ranting, and you’re not so full of yourself. I really appreciated the explanation of how you built the apparatus, that really brought it down to earth.
@aetius315 жыл бұрын
I wonder what would happen if you replace the glass frit with hydrated SiO2 aerogel (before drying it), as the pores are a few nanometers the flow could be greatly enhanced.
@buddhaeaterodsouls5 жыл бұрын
Here is a link to a dissertation where they did just that! www.google.com/url?q=pdfs.semanticscholar.org/4f76/fcc7bf921535cd2a8aa61e53a89c767d0a7b.pdf&sa=U&ved=2ahUKEwiZ76XzitPkAhUElawKHVN1AH4QFjAAegQIARAB&usg=AOvVaw0ecdPwB0yxwVQt-4kgVPgy
@John-ro2yk9 ай бұрын
Oh man, at 0:31 you showed the article in Popular Science, that instantly took me back over 50 years. I must have been 9 or 10 at the time and tried to replicate the experimental setup they showed on the subsequent pages of that article. I dragged my Mom all around town, through a half dozen electronics and TV repair shops looking for the exact model transformer they described in the experiment. We never found it, which might have saved me from electrocuting myself. I remember that article though. So cool. Thanks!
@mduvigneaud5 жыл бұрын
Awesome, Ben! I love your videos.
@spvillano6 ай бұрын
I remember back in the early 2000's, companies were selling (and still are) basement "waterproofing" systems for masonry walled foundation walls. I was and remain more than dubious for such a system in a retrofit on old work, but it likely would be quite effective on new construction. It all comes down to electrode installation and yes, the earth can be used as an electrode, but the efficiency goes even farther down. I discarded the notion for my old house, as our water issue was related to the fact that the back alley used to be a creek bed and the rears of many of our homes were literally part of the floodplain, so when it rained for extended periods, we'd start to get significant seepage of water through the concrete floor and masonry wall. I figured we'd need over 10 times the flow rate of such a device scaled up to handle it and that, plus impurities from the masonry and earth would, well, not be distilled water and chemically complicate the system by a great deal. Basically, it'd be a high electrolyte containing mixture that one's applying a high voltage to, which could turn into a double plus ungood thing in a confined space like a basement. Especially in a house that was so old that it had gas pipes (thankfully, capped off in the basement) running through the walls for old gas lights, as well as knob and tube wiring. On new work, it'd likely work well, although on new work, there'd have been a better path for water to flow provided that was away from the foundation walls and basements when the block was being constructed.
@Blinkwing5 жыл бұрын
When it's only about the electric field, why not just isolate the electrodes, maybe even just with a thin layer of insulant? Wouldn't this prevent all the electrolysis-side-effects or am I missing something?
@AppliedScience5 жыл бұрын
That is a good point. Some of the current flow is caused by the movement of the water. I saw this when blocking the movement and seeing a change in electrical current. I probably didn't explain (or understand it myself) fully. A true non-conductive fluid or insulated electrodes would not work.
@DLSDKING5 жыл бұрын
@@AppliedScience It means this electro-osmosis process is kind of an accelerator but not initiator type of mechanism..
@Blinkwing5 жыл бұрын
Thanks for the explanation! :) It's probably like the naïve idea one can have to look at two electrolysis cells without providing a means of ion exchange. Definitely a very interesting topic.
@mikeguitar97695 жыл бұрын
From wikipedia: "The Coulomb force on a charge of magnitude q at any point in space is equal to the product of the charge and the electric field at that point" F = q E Since the force is dependent on the electric field, not the current (other than the obvious current from the flow of charged particles), theoretically I suppose you could have some kind of EO pump without additional current flow. When charging a supercapacitor for example, there is a very efficient storage of charge and energy even while pumping ions over to the electrodes. However to get continuous flow could require a peristaltic effect, with multiple capacitor plates and alternating voltages.
@roboticus36475 жыл бұрын
If the electrodes were insulated, then the charges would accumulate in a cloud near the electrode. That cloud would essentially shield the rest of the water from the field, so you wouldn't get a good field across the frit filter. When the electrodes aren't insulated, then when the charged ions reached the electrode, then the ion could take or give an electron (depending on which electrode it is), and become neutralized, preventing the accumulation of the shielding cloud of ions near the electrodes.
@wrOngplan3t5 жыл бұрын
Adding this to "watch later" and then watching the whole thing because it was super interesting! Very well explained too!
@samykamkar5 жыл бұрын
So awesome!
@horseman6844 жыл бұрын
This the best experimental physics channel Ive seen
@AntonBabiy5 жыл бұрын
Really interesting unique content right here! Always enjoy your videos 🙂
@cloud-dragon5 жыл бұрын
Incredible!!! I was looking for a simple & reliable pump and now I've found it!
@-robo-5 жыл бұрын
There are some good air lift pumps out there. Perhaps you have already seen them, but I thought I would mention it just in case.
@sciencemodelaboratory72985 жыл бұрын
Nice work
@aaron415 жыл бұрын
I think it says a lot that a large number of my favorite KZbinrs are all the top comments on your video Ben. Excellent video as always!
@TrentTationnaiseXization5 жыл бұрын
I'm curious. Can you reverse the concept and produce power? Like a non mechanical turbine.
@dylanberger87013 жыл бұрын
that’s what he was doing with the sensor, measuring the return current when the flow was applied. he remarked that the efficiency was like .1%, as you need loads of current to send it one way and only microamps of current come from the reverse.
@bluesquare235 жыл бұрын
I'm always most impressed in your videos with how you build your own apparatuses. They always look very professional but yet they're so simple.
@lubricatedgoat5 жыл бұрын
Could you stack these pumps in series to generate enough pressure to build a hydraulic ram with no moving pumps? I also wonder if this is similar to how pumps work across cell membranes to selectively move molecules (but ATP powered). If glucose and oxygen could be selectively pumped out of blood plasma, then they could be combined in a fuel cell to generate electricity inside the body (that would also power the process). Generating power from blood glucose would have an enormous range of uses.
@Roufilic-Acid5 жыл бұрын
This or a ring of these like a particle accelerator for water of sorts!
@-robo-5 жыл бұрын
If this worked, might it be used to remove excess glucose from diabetics? Rather than pumping insulin in and creating fat, glucose levels could be measured and controlled.
@insightfool5 жыл бұрын
This is so great. Really glad to see you experimenting with water research. Something very needed right now.
@roderickwhitehead5 жыл бұрын
One. Ping. Only.
@EwingTaiwan5 жыл бұрын
Great, now I can't get Sean Connery's voice outa my head.....
@feelx92ger5 жыл бұрын
Washilli!
@niccatipay5 жыл бұрын
One ping only Vassily. One ping only please.
@alphaadhito5 жыл бұрын
I'm glad people knows that reference :)
@MaximumBan5 жыл бұрын
@@alphaadhito Missed me!
@UloPe5 жыл бұрын
The explanation for osmosis is actually pretty amazing. Never heard it laid out like that.
@axelbostrom36065 жыл бұрын
this seems like something that could be pretty cool in a PC watercooling loop. Depends on what kinds of pressure you can get as the cooling blocks are fairly restrictive. The pump speed seems quite low too but thats less of a problem
@TheAnoniemo5 жыл бұрын
Another issue is the high voltage DC you'd need to run it. Can't be easy to get a couple hundred volts and water in something small enough to fit in a pc. And I doubt the flow will be enough, let alone the terrible efficiency...
@TheAnoniemo5 жыл бұрын
@@stevenutter3614 You can get inaudible sound levels with moving components like good quality low rpm fans on a big heatsink tower without sacrificing much apart from money buying quality components.
@vylbird80145 жыл бұрын
@@TheAnoniemo High-voltage power supplies are actually pretty simple and tiny, if you don't need more than a few mA. Simple voltage multiplier circuit. Think those electric flyswatters - they run off a 9V battery, and produce around 200V from it.
@Electroblud5 жыл бұрын
@@vylbird8014 That electric flyswatter also produces tons of electrical noise and will probably fry the PC. But with the right filtering, yes. It's not that hard to build tiny high voltage power supplies that produce relatively clean output. His supply is only that big because it's a lab power supply with lots of different settings and other fun stuff that you don't need for a specialised application.
@Mythricia19885 жыл бұрын
@@Electroblud Tiny power supplies for cold cathode tubes often used in decorating PC's are cheap and easily available, size of a small matchbox, and they generate a pretty respectable voltage - higher than he used in the video I believe. But I don't think they have much current capacity. I have one somewhere, but I don't have anything with which to measure it safely...
@yiyou65295 жыл бұрын
Somehow, I always get new research ideas through watching your diversed videos. Thx.
@thombaz5 жыл бұрын
It took me a little time to understand you use your ammeter reversed.
@dwilliams20685 жыл бұрын
Yes, that bothered me. Why not show increasing current as up on the display.
@Mindbulletz5 жыл бұрын
@@dwilliams2068 To be fair, he did show it as up when he switched the power supply polarity and flow direction.
@dwilliams20685 жыл бұрын
*@Mindbulletz* Yes, I didn't jump on him. Over the years I am sure I did similar things when it was convenient, but only when I or an associate was involved. About being fair, I find very few fair comments on KZbin and sadly they are almost all written by folks with an agenda or zero knowledge about the subject. For a while I tried to offer constructive information for those folks but they either respond with another wrong statement, or if they run out of things to say they start calling someone names. You aren't allowed to be helpful on KZbin. (Well, you are though.)
@moothecow73464 жыл бұрын
Please never stop making videos. I love your content and learn something new every time!
@ColCurtis5 жыл бұрын
Awesome explanation of osmosis. If only the H+ move across the filter and the OH- is stuck how does it recombine? Shouldn't it lower the pH on one side and raise on the other.
@LukeNimtz5 жыл бұрын
Curtis, yeah the explanation for how it runs indefinitely didn’t make sense to me either
@ttipekul5 жыл бұрын
I was wondering something similar. Shouldn't all the space on the glass get taken up by OH- after a bunch of H+ has been pumped across and then the process stop because no more H2O can get close to the glass? Also if the OH- was going to move in any direction shouldn't it be towards the opposite of the H+ because it's attracted to the opposite plate.
@jacogomez10935 жыл бұрын
Not only the H+ moves through the sintered glass, the quimical bond between H+ and OH- is not broken by the interaction with Si (it only slightly polarizes the H+ aligning the water molecule thus creating a "charged extreme to pull") so when the H passes through the filter the OH goes with it. (BTW sorry for my English).
@NielMalan4 жыл бұрын
This pumping mechanism is used in capillary electrophoresis, an analytical chemistry separation technique. It exploits the very flat flow profile, which allows high-resolution separations to be performed in a very short time. This technology accelerated the Human Genome Project.
@epigeios5 жыл бұрын
I didn't know glass created exclusion zone water. Well, I knew it did a little bit, but I guess a little bit is enough for this. So I suppose a more hydrophilic material would cause stronger pumping. Also, more light input into the active area should additionally cause stronger pumping.
@scottdunn51975 жыл бұрын
Except that it is creating pos ions not neg.... which gives me an idea
@askquestionstrythings5 жыл бұрын
Fascinating, seems like this would have lots of applications in microfluidic devices.
@FrankGraffagnino5 жыл бұрын
I wonder if you can enhance the separation at the walls? LIke having some different electric field there to assist? Not sure if that would mess up the overall flow field though.
@zilym5 жыл бұрын
I wonder if a slice of wood would work instead of the fritted glass filter? Wood has tiny porous tubes (xylem/phloem tubes) that would be more organized than the randomly packed glass particles of a fritted glass filter. Might work even better? Plants, afterall, are perfectly designed for moving water up/down efficiently.
@abraham1O25 жыл бұрын
With a slow alternating current I wonder if it'd be possible to use the pumping like the pistons in an engine
@andrewnambudripad7625 жыл бұрын
Also, fast AC (say, +/- 2kv at a few thousand Hz) would be real interesting to monitor... if the skin effect comes into play, your flow profile will become even stranger...I don't even know where to begin to even simulate this with ANSYS, much less how to experimentally monitor the microfluidic changes, but the dynamics would be fascinating I'm sure
@possibly_a_retard5 жыл бұрын
What a terribly inefficiently eccentric way to build an engine. I love it.
@brucewilliams62925 жыл бұрын
Thank you for the great discussion. I have had to explain how 1000 psig across a leak in a heat exchanger will result in fluid from the low pressure side going into the high pressure side. Next time I'll set up the salt membrane experiment and let the engineers "see" for themselves. Also, I really like seeing the way you made the experiment. Well done as always.
@РоманПлетнев-г3э5 жыл бұрын
I don't get it - if water particles split to OH- and H+ why doesn't OH- flow in an opposite direction to H+? how do both of these parts manage to get to the other side?
@bernardoa.frontana-uribe12793 жыл бұрын
Very nice explanation and very useful for my students in this pandemic times where there is no labs available and we as teacher need fo find attractive material for them!! Thanks for your effort to comunicate simply science!
@qwerty2012w5 жыл бұрын
“Reverse” osmosis should be called forced osmosis! I never really knew what that meant
@twlson494 жыл бұрын
wow... once again...what a concept that I have never thought of. an electrical field cutting through a magnetic field
@AdityaMehendale5 жыл бұрын
When you unplugged it at 4:04, I expected the current to shoot-up (instead of gradually ramping-up) since the back-pressure is instantly gone. Does the slow ramping allude to "gaining momentum" (of water-molecules) in the winding labyrinths in the glass-frit?
@AppliedScience5 жыл бұрын
I'm not sure. Your observation is correct -- it would seem the flow rate would rise much quicker than the current did in the video. Someone should do a follow up with a sensitive flow meter, and plot that against current :)
@Scientificexploration5 жыл бұрын
Applied Science what frit coarseness did you use?
5 жыл бұрын
kzbin.info/www/bejne/sKu5kpKqjZaCn6s 19:03 he says his filter has 'particle size' of between 4-5.5 micron
@Scientificexploration5 жыл бұрын
Stefan Krüger would that be the maximum size of a particle that can pass or the glass particle size
5 жыл бұрын
@@Scientificexploration i guess its the particle size that can pass - that would make more sense to specify for the use-case for filters i think.. - but it is really just a guess
@altimmons4 жыл бұрын
It should be noted that I think borosilicate glass (eg Pyrex) is required. Not the much more common soda lime glass. I’m not actually sure that it wouldn’t work. I just know that borosilicate was more preferable. Not sure what glass you sintered there. You need the pore size to be comparable to the size of the double layer. We used essentially a single pore (channel etched into glass) rather than a porous filter. Your efficiency is probably so low because your pore size varies and some are probably too large. Also, probably more importantly, the pores aren’t straight so your lamellar flow is being destroyed by eddy currents. It’s why etching channels that are straight and narrow and consistent would get much better flow.
@altimmons4 жыл бұрын
@18:30 you mention the flow profile. The EOF double layer is important. The outer layer is nearly static. It’s the inner layer that moves but it’s (like any fluid flow) very susceptible to turbulence. The efficiencies we (I say we, but again I was an undergrad when I worked here. I learned vastly more than I contributed) got were vastly higher, but the voltage was much much higher and the volumes much much lower. We worked in a partial clean room but the damn chips would always clog and be garbage. And making them by hand took dozens and dozens of hours (at least for me). We’d etch the channels in the glass than take advantage of an odd property of wet glass (borosilicate again) if it’s extremely clean and you get a single layer of totally pure water in between two perfectly flat layer of glass (which you could see quite obviously with the eye by the diffraction pattern formed) they would permanently bond - as if it were one piece. This is harder than it sounds in practice. It requires running 18.2 MOhm water over the glass plates. Having them extremely clean. A single dust particle would keep them from bonding. Oh yea, you had to put them in an oven once you got the grating to go away, to cement it. This, I think, formed a covalent bond between the siloxane (SiO3-) groups on the opposing glass surfaces. Could also have been hydrogen bonding. I can’t recall.
@potato4dawin15 жыл бұрын
could one use this design as a means to electrolyze water while minimizing thermal losses? I believe efficient electrolysis of pure water is a big topic in physics
@JR-kk6ce5 жыл бұрын
This is such a cool video. There is so much information in it that it will keep me busy for months and months.
@Scientificexploration5 жыл бұрын
Conspiracy theorists: is this free energy
@RepublikSivizien5 жыл бұрын
free oll teh energiez
@SuperAWaC5 жыл бұрын
if only we could harness water propelled by gravity to create electricity
@user-qx7tm5df8j5 жыл бұрын
@@casperx102 NU SHUT SHURLUCK
@lostplshelp5 жыл бұрын
@@casperx102 That's a big *wooosh* right there.
@casperx1025 жыл бұрын
lol ok i do get the joke
@harliethomas13785 жыл бұрын
What an amazingly beautiful setup you created to demonstrate this. I have been researching the different electrical effects and unique qualities. I am going to look for the video to link a reference to. I would love to see if shining a bright light at the glass filter would change the efficiency by making the layer of hydroxyl ions thicker. I would also be fascinated to see if you pickup a current flow from the 2 electrodes across the sintered glass filter when shining a light source directly on it. Dr Gerald Pollack has shown a continuous pumping effect and also current flow to light an led powered by this layer of H2O3 "gel" layer Oh lastly have you tried the water "bridge" a layer of water across 2 beakers that will extend even to centimeter length by the high voltage potential between the 2 beakers. I am so going to have to duplicate this. Kudos on such great work.
@robertcalkjr.83255 жыл бұрын
Wow, that was cool, Ben! Thanks! I was going to ask about the Micron size of the porous glass membrane. I wonder what the results would be playing with the micron sizes and making them more homogenous?
@Ninjahat4 жыл бұрын
Still love your way of going through really smart stuff in a detailed but yet easy way to understand. Thank you :-)
@Afraithe5 жыл бұрын
Cool! Is this used anywhere in the world for something?
@guilhermeaccarini70795 жыл бұрын
Internacional Space station
@mvache5 жыл бұрын
@@guilhermeaccarini7079 that's not "the world".
@bottlekruiser5 жыл бұрын
@@mvache define "the world" then
@bottlekruiser5 жыл бұрын
@SaltyBrains en.wikipedia.org/wiki/World First three sentences are three different definitions. Pick one.
@AltMarc5 жыл бұрын
Isn't it used for water desalination system, that don't need high pressure pumps (bc efficiency) ?
@spencerdavis48145 жыл бұрын
Very interesting! I had never heard of water reacting with glass like that. Really great demonstration.
@STONEDay5 жыл бұрын
How can I use this to make a gravity bong?
@mikeguitar97695 жыл бұрын
I put my hand over it, but the smoke is still coming out!
@baltoen_Ай бұрын
Thank you for explaining it! Apparently this is used for removing water/moisture from basements. I was sceptical about it so had to see some science behind it 😅
@vezzosetto5 жыл бұрын
I like how you have the guts to post a link to sci-hub :)
@tacocool15 жыл бұрын
Im definitely glad this video showed up in my suggested videos.
@MakerDent5 жыл бұрын
Thanks for posting great videos. I started watching them in high school not understanding or being familiar with what was going on, but they were so interesting. These videos were part of my inspiration to study engineering. Now I see a lot of relevance and familiarity between your videos and my internship, especially in this video. Thanks for taking the time to make great content!
@1943vermork5 жыл бұрын
Great Apparatus and video. 17:00 that feeling when my brain figure something and connect the dots. Wish it happens more often.
@AnotherGlenn5 жыл бұрын
The information about the interaction of water and glass was a good enough reason to watch this video.
@ElectraFlarefire5 жыл бұрын
"You may recall the movie.." That was literally the last thing I was watching before watching this one! :)
@TheGayestPersononYouTube5 жыл бұрын
This is really cool, can’t say I’ve ever seen it on video before. Love the use of the glass frit filter I also saw you supported tom’slab on patreon the other day which is really damn awesome of you so thank you!
@nyceyes5 жыл бұрын
These lab videos are really something special. Thank you for creating and explaining them. 🤗🌞
@boltonky5 жыл бұрын
That's really cool and good explanation, what cracks me up is towels covering the bench but the perforated HV system is wide open. Electricity has so many things to explore, my problem is i am highly conductive and electricity has a thing for me even when i am being safe not to mention my output can screw with testing and does if i'm not paying attention. (i totally would be a good battery in the matrix hahaha)
@NWOization5 жыл бұрын
I never knew that glass had the ability to break up a water molecule, that seems like something that could be incredibly useful. Could you create a lattice of glass so thin and so packed that you could strip the incoming water into hydrogen and hydroxide? I mean once the hydrogen is split, could it be extracted or placed into a solution that's easier to thermally crack? If anyone can come up with a way to produce hydrogen cheaply from water, it's you. You have the skills and the ability to change the world. You're a true inspiration and I look forward to every video you post.
@-robo-5 жыл бұрын
Electrolysis powered by solar, wind, geothermal comes to mind.
@infinitesolarforall39014 жыл бұрын
You are so eloquent! A true teacher, thank you, I will be experimenting with this!
@KnightsWithoutATable5 жыл бұрын
Really nice work on the rig construction for this experiment.
@eugenes97515 жыл бұрын
2 videos in 1 week! I feel giddy with excitement!!
@Gaark5 жыл бұрын
You bloody amaze me man, this is ridiculously interesting
@NedTheDread5 жыл бұрын
That was the best description of osmosis!! I have the full picture now! Thank you!!
@ThingEngineer5 жыл бұрын
This seems like it would be a great tool in microfluidics. Thank you for sharing this unusual phenomenon.
@manickn68195 жыл бұрын
Quite interesting actually. One of the few channels that almost always goes in directions I cannot predict.
@globalko3 жыл бұрын
I've read some courses in surface science and the actual charge properties of surfaces is almost never exposed due to other molecules interacting with the surface creating an "electrostatic double layer". For e.g. a surface that is negative will attract positive molecules which decreases the further from the surface that you get so the actual interface is positive not negative
@kevinbyrne45385 жыл бұрын
This is a pleasant surprise. Recently I edited Wikipedia's article on electro-osmosis. I'd found the original papers by the 2 men who (independently) discovered this effect: the German Ferdinand Friedrich Reuss (in 1807) and the Englishman Robert Porrett, Jr. (in 1814).
@geoffrygifari33772 жыл бұрын
Another interesting things: 1. If we somehow use a solid dielectric material more polarizable than glass, can we get a stronger flow? 2. what if we charge the glass itself (being a dielectric), making it easier to attract more OH⁻ ?
@nolan74573 жыл бұрын
i love it just hope no one uses this in a closed pc water loop on a quest for a no noise solution rip cpu and gpu
@eberlined5 жыл бұрын
Surprised you didn’t mention the trusty bubble pump, it’s another interesting example of a solid state pump. Anyway, keep up the good work!
@Nic73204 жыл бұрын
Any phenomenon with sufficiently advanced technology is indistinguishable from magic.
@fre3bs6285 жыл бұрын
This is very interesting. At my work we are actually trying to measure the reverse effect like you show in your video. We are interested in the voltage or current that is produced when a flow is introduced in the capillaries of a ceramic membrane. This is called streaming current or streaming potential. I never imagined the reverse was also true. Your video will help us a lot designing a system around this phenomenon!
@pasixty65105 жыл бұрын
Really a cool 'machine'.! Maybe this technology could be useful in the future e.g. in miniature systems for non vaporizing cooling devices or many other applications where a liquid is intended to flow without being moved by moving parts. All parts available on eb... at low cost. Most trouble with readily available parts was to keep the experimental setup from leaking... Holy Silikon sealant... A great experiment !
@mxcollin955 жыл бұрын
You always come up with really cool and super interesting video ideas! Love how original this channel is. 👍
@yakut98764 ай бұрын
I honestly don't know why everyone is so obsessed with things that need electricity to work. In fact, the electroosmotic pump is a mechanical pump ! Great explanation though.
@craigs52125 жыл бұрын
Very cool thanks Ben. Would be interesting to know how much the Sodium in the glass contributes to orientation of the neg end of the polar water molecule. I suspect a quartz frit filter with no Sodium would be rather expensive. Also since it's the field that's important, I wonder if the electrodes could be insulated thus eliminating any electrolysis effects. Just don't screw up and try and plug both pipette at the same time at 200V, I want to watch more videos. Craig
@iandvaag5 жыл бұрын
@Applied Science Where did you find the porous glass frit? I've been looking for exactly such a thing to use in Ag/AgCl reference electrode junctions. Thanks for another great video, what a great channel.
@-robo-5 жыл бұрын
DIY frit: Place glass in a tumbler with (clean) rock or metal. The result is crushed glass, called frit. Next filter and wash the frit to obtain your desired size pieces. Then place the frit into a heat resistant mold of the size and shape of the desired end product. Finally heat the frit just enough to fuse, but not melt entirely. Optionally, prepare the edges for your particular application, such as applying silicone to form a seal.
@dexterm20035 жыл бұрын
Suggestion for a future topic: electropheretic drying. I was working as an energy analyst and was auditing a paper mill and they were having difficulty drying their paper at full speed for some thicknesses so I looked in to novel paper drying methods and discovered research into using electropheresis or an electrostatic field to lower the enthalpy of vaporization of water increasing the drying rate. I believe that it can also lower the boiling point or the vapor pressure of the water itself. I think that would be a really cool topic to explore in the future. Like this comment if you would like to see this.
@Streamtronics5 жыл бұрын
wow, I had no idea. Thank you so much for these videos, learning new things every time.
@andrewpilk5 жыл бұрын
The case of natural convection flow between two heated vertical parallel plates is similar. The velocity is zero at the plate but the buoyancy forces driving the flow are also greatest near to the plate, as this is where the largest temperature difference between the plate and free stream occurs.