Surface Tension as you've never seen it

Surface Tension and Capillary Action simulated using sticky spheres and sticky walls. My Patreon page is at / eugenek

[@jdjk7]

I would not have expected the prog metal soundtrack behind this physics demonstration

[@NuisanceMan]

Actually, every single concept in physics is associated with, and mysteriously dependent on, a genre of rock 'n roll.

[@devins7457]

Physics rocks

[@oxydoxxo]

Ikr it's awesome 😃

[@PhngluiMglwnafh]

Professor Neal Morse

[@BlackbodyEconomics]

Ah - I see the problem here. You need to watch more Phys Vids by EK ;) The metal licks make in to quite a few of the videos. PVEK is, by far, my favorite hard science channel on this psychotic platform.

[@Heulerado]

That superfluid wall-climb was so cool!

[@EugeneKhutoryansky]

I am glad you liked it. The friction was set to zero. Thanks.

[@zh84]

Yes, I immediately thought "they've created liquid helium".

[@napiersConstant]

Same thought!

[@NuisanceMan]

@@zh84 Not just liquid

[@yura2424]

Kerosine does that

[@bogdanyer]

I would have liked to see it at "higher temperatures". So they don't form a lattice. Otherwise great as always

[@EugeneKhutoryansky]

I cover that in my video "Molecular Temperature & Degrees of Freedom" at kzbin.info/www/bejne/pKKqpZ2faL-dpas Thanks.

[@agsystems8220]

Agreed. You don't see the surface tension effects because it isn't a fluid. The blocks are supported by the lattice applying static forces anisotropically, which fluids cannot do. You can tell this because the block is neither rising or sinking. Once the surface closes over the top of the block it should sink. In the very strong force case you would expect it to be expelled somewhat.

[@farpurple]

What material irl is that green balls?

[@Splarkszter]

​@@EugeneKhutoryansky Thank you so much for being so awesome?

[@rexr0b0twars80]

the explanation:🤓☝ the background music:🤘🔥🤘

[@larryyonce]

Rockin' fluid surface tension 🎸 ✅️

[@GoingtoHecq]

It explains the Naruto music.

[@MrKockabilly]

Awesome. I always thought surface tension is such that a strong film/sheet/layer forms on the "surface" of a fluid. This is an eye opener for me

[@Not.Your.Business]

well, surface tension is a direct consequence of the attraction between the fluid's molecules - a symptom, if you will

[@claudiamanta1943]

Or the surface of each sphere if they are made of a substance that repels the liquid they’re in? Can the whole thing generate electricity? Imagine this in the tarmac of streets and in the cars’ wheels turning friction into electricity. Or such material in the soles of shoes- people charging their mobile phone when running- I reckon many would take up jogging or being physically active. I don’t know what I’m talking about, never likes maths or physics. But sometimes it’s fun to imagine stuff.

[@thomas.thomas]

Friction is causing heat, nuclear reactors water is heated to turn turbines with a dynamo. So you would need to somehow take the heat from your shoe and send it to a turbine, really complicated and a shoe is generating so little friction that just building such a device probably takes more energy than it will ever generate @@claudiamanta1943

[@AttilaAsztalos]

I suppose the "surface" thing only means it's gonna make a difference for you only as long as the effect is strong enough AND you're still above the surface. If the attraction is too weak to keep you above and you fell through the surface, you're just going to keep sinking as you normally would...

[@mbrusyda9437]

The surface thing is because it resist increase in the liquid's surface ​@@AttilaAsztalos

[@umeng2002]

You have a real talent for explaining physical phenomena more intuitively in mere minutes than years of studying in a university.

[@EugeneKhutoryansky]

Thanks for the compliment.

[@BariumCobaltNitrog3n]

years? How many times did you take intro to physics, like 12?

[@umeng2002]

@@BariumCobaltNitrog3nEverything, not just this topic. Learning equations also doesn't give you intuitive knowledge.

[@BariumCobaltNitrog3n]

@@umeng2002The behavior of atomic forces is not intuitive. Did you learn anything in all those years?

[@umeng2002]

@@BariumCobaltNitrog3n I really don't understand your argument. In one reply you say everyone should learn atomic behavior in one semester. In the next reply, you concede that atomic behavior is complex enough that solving equations doesn't let you understand the behavior in a more intuitive way.

[@babloovyas1080]

Awesome friend Carry on This video provides me with a clear picture on viscosity and intermolecular force

[@EugeneKhutoryansky]

Thanks. I am glad my video was helpful.

[@arunkumar2111]

I am a physics teacher and this is easily the best explanation 😊

[@EugeneKhutoryansky]

Thanks for the compliment about my explanation.

[@_abdul]

Jiggly Balls are the best friend for anyone who's trying to learn the world arround in an intuitive way.

[@nutronstar45]

Jiggly Balls 🤤🤤

[@raulgauthier7893]

bet

[@bo-dg3bh]

really love eugene's animations and kira's voice.

[@EugeneKhutoryansky]

Thanks.

[@gorkemvids4839]

Explanation was so amazing even with such simple topic. Thanks!

[@EugeneKhutoryansky]

Thanks.

[@aka0989]

i'm happy this channel still produces videos, i remember discovering it back when i was a first year engineering student.

[@EugeneKhutoryansky]

I am glad you enjoy my videos. Thanks.

[@hazimahmed8713]

Reached 1 million subscribers. Congratulations 🎊 👏 💐 🥳 🎊

[@EugeneKhutoryansky]

Thanks.

[@Livingthedreams60]

Magnificent (as always)! A big thank to you.

[@EugeneKhutoryansky]

Thanks. I am glad you liked my video.

[@user-xq8mk5qu8n]

Visualization combined with a rare talent for explanation, I observe the efforts that go into these videos. I am awed by the results of the hard work. Congratulations to your narrator, to you and whoever else is involved in these efforts. There is the hard work, but also the love of your subjects. A decade of product, that I hope will inspire those at whom you aimed it. Too late for me, I am afraid, though I use this resource to clarify my muddled understanding, That much you have done for me. I am grateful. For the young up-and-comers, I hope they take advantage of what you laid out for them. They can use these lessons to forge ahead, to understand and develop further what old people like me, can no longer do.

[@EugeneKhutoryansky]

Thanks for the compliments.

[@ghostmantagshome-er6pb]

"@user" "MEANS BOT

[@zacharywong483]

Fantastic explanations and visuals, as always!

[@EugeneKhutoryansky]

Thanks.

[@simonedagostino9358]

The video: 🙂 The music: 😈🎸🎸🤘

[@cuadernoazul5958]

OMG Eugene returned! you was the first channel I followed almost 8 years ago

[@EugeneKhutoryansky]

Thanks for following me for 8 years.

[@Ccccccccccsssssssssss]

Another great video, thank you!

[@EugeneKhutoryansky]

Thanks.

[@csx9292]

I would like to see another demonstration with the red box, but this time with the combined effects of attractive forces, both between the balls and eachother, and also between them and the walls.

[@y5mgisi]

This channel is so great.

[@EugeneKhutoryansky]

Thanks for the compliment.

[@kv2893]

Love the content and the music!

[@EugeneKhutoryansky]

Thanks.

[@Vineger23]

Great video as always!

[@EugeneKhutoryansky]

Thanks.

[@Moose_elk]

1 mil subs, congrats!

[@EugeneKhutoryansky]

Thanks.

[@keepitsimple7720]

Awesome as usual

[@EugeneKhutoryansky]

Thanks for the compliment.

[@iancamarillo]

Love this stuff

[@z3my4l]

This is amazing work!

[@EugeneKhutoryansky]

Thanks for the compliment.

[@Rationalific]

As always, a clear and helpful visualization!

[@EugeneKhutoryansky]

Thanks.

[@Rationalific]

@@EugeneKhutoryansky 👍

[@javersongoulartfilho9439]

As a chemist this remind me and clear many aspects of my capilar tube knowledge!

[@NatsukiTakaama]

Wait , sone

[@Ali2599]

Your channel is wonderful. You explain physics better than the books of physicists themselves❤️

[@EugeneKhutoryansky]

Thanks for the compliments.

[@seanu6840]

This video puts a whole new meaning to math-core

[@geronimomiles312]

Excellent presentation.

[@EugeneKhutoryansky]

Thanks.

[@KalijahAnderson]

I understand super fluids much better now. Thank you.

[@EugeneKhutoryansky]

Thanks.

[@DDDelgado]

Great video, Thanks

[@EugeneKhutoryansky]

Thanks.

[@BartKus]

Finally a good video of Van der Walls forces.

[@realgoofygd]

Get this channel to 1 Million subs!

[@NatsukiTakaama]

😰 PLEASE SAVE JAPAN FROM 👳☪️🕋🕌

[@rajeevkumar-rg7zg]

Very nice explanation

[@EugeneKhutoryansky]

I am glad you liked my explanation. Thanks.

[@muhammadfaizankamboh]

good demonstration of the concept

[@EugeneKhutoryansky]

Thanks.

[@FenrizNNN]

i subconsiouly screamed "liquid helium!" In my mind at 1:14

[@dear_imran]

So insightful video Please make one on mercury and water comparing

[@jaredf6205]

There are so many different effects that this makes clear.

[@EugeneKhutoryansky]

Thanks.

[@NoosaHeads]

As usual - excellent.

[@EugeneKhutoryansky]

Thanks.

[@NoosaHeads]

@@EugeneKhutoryansky I did engineering originally (medicine afterwards). I wish we had you as our professor in the old days. We were given textbooks and told to read things up. There was very little explanation. You turn difficult concepts into easily understandable subjects.

[@youssefelyousfi4929]

all your videos are cool

[@EugeneKhutoryansky]

Thanks.

[@jnr2349]

Very cool. Much admiration. I see hydrophobic container behaviors on the fluid when moderate surface tension and no wall attraction.

[@priyakulkarni9583]

You need to explain fluid exposed to air that has O2 and Nitrogen. Non zero force on the air liquid interface. Surface tension is more than what you said 😅

[@jnr2349]

@@priyakulkarni9583 Not sure of what you said, but if correct then it is emulation.

[@priyakulkarni9583]

@@jnr2349 Atmospheric pressure of air that is on the surface of liquid has O2 and Nitrogen molecules interacting.

[@jnr2349]

@@priyakulkarni9583 What does that have to do with the animation? I think it is a good emulation of surface tension of water in a hydrophobic flask. The animation i believe backs that because its just a simplification of the forces involved.

[@priyakulkarni9583]

@@jnr2349 The presence of air at the surface of water can indeed affect surface tension. Oxygen and nitrogen molecules from the air can dissolve in water, and this dissolved gas content can influence the properties of the water surface. However, the impact on surface tension is not typically significant compared to other factors. Surface tension is primarily determined by the cohesive forces between water molecules at the surface. While dissolved gases can influence the surface tension to some extent, their effect is generally minimal compared to other factors such as temperature, contamination, or the presence of surfactants.

[@cannettedebiere]

Amazing !

[@EugeneKhutoryansky]

Thanks.

[@tomjones6777]

Does the video apply to the liquid meniscus seen in a graduated cylinder ?

[@EugeneKhutoryansky]

Yes.

[@user-mx3ok4bj3p]

You did it bro! 1 milliyiones subscriberionezzzz ma man yezzurrrr

[@EugeneKhutoryansky]

Thanks.

[@christojojo4433]

Is it possible to simulate soil by giving the spheres high friction coefficient and no attraction either between the balls nor the wall?

[@Serenity5516]

Good explanation

[@EugeneKhutoryansky]

Thanks.

[@xentarch]

It's modeling surface tension as it actually occurs on the atomic level. How cool!

[@EugeneKhutoryansky]

Thanks.

[@TheAbsol7448]

This is an amazing visualization. I found surface tension hard to understand until watching this.

[@EugeneKhutoryansky]

I am glad my video was helpful. Thanks.

[@Fisherdec]

Nice, Eugene still making vids

[@utfan971]

Came for the surface tension, left the vid finally understanding how liquid helium's superfluidity works after 14 years after first being exposed to the concept, as well as feeling stupid for not figuring it out myself.

[@CaseyConnor]

What would happen if the red square started mid-way in to the balls? In other words, what explains the "surface" in surface tension, under this model?

[@iwantagoodnameplease]

Do the 3 types of sphere you show here correlated to any real world substances? Which one would water be closest to?

[@richardaversa7128]

Water: moderate self-attraction and attractive wall (dip in the surface). Mercury: moderate self-attraction, no attractive wall (bulge in surface). Liquefied helium, or any "superfluid": no self-attraction, attractive wall (climbs wall). There are other combinations in the video and other associated physical scenarios, but these are the most commonly discussed.

[@Alex-nv5sw]

From 2:35 to 3:31 makes me wondering if surface tension and buoyancy could be related, because the box never fully sinks or touch the bottom of the container, hence it floats somehow.

[@caclesi]

Stronger attractive forces, higher density, so higher buoyancy

[@reeb3687]

is 'surface' tension a bad name then since the attractive forces are consistent in the entirety of the fluid, and not just at the surface? and is the surface tension equal to the attraction force of the molecules between each other, or is dependent on other factors like density / velocity of the object coming into contact with the fluid?

[@_thisnameistaken]

I wish that I could subscribe however many times are required to get you to one million. Your videos are great.

[@EugeneKhutoryansky]

Thanks for the compliment about my videos.

[@cogwheel42]

It would also be great to see a) walls with repulsive forces and 2) blocks with attractive or repulsive forces. A block that is attracted to the strongly attracted spheres would break through the surface tension. A block that is strongly repelled by the spheres would act spherophobic.

[@VCLegos]

It is interesting how to balls with zero attractive forces look like metal grains. I wonder if there is some similar mechanism occurring there. If so, then by making the particles of metal attracted to each other it would be possible to make a solid, aligned crystal structure. Something similar to diamond perhaps?

[@xyz-yt9zh]

Good video

[@EugeneKhutoryansky]

Thanks

[@quoudten]

😱🤯💗 great stuff. Wonder whose using this for nano chemistry or nano sensing and detection type stuff?!?

[@benevolencia4203]

Looks like a capillary action experiment we did in grade school- but bigger.

[@BartKus]

I'm here for the metal power ballad in the background \m/

[@IAmNotARobotPinkySwear]

So this would explain meniscus in a test tube? Oh, and it's hard to pay attention to the narrator b/c of how FIRE the guitar solo in the background is lol

[@EugeneKhutoryansky]

Yes, this explains meniscus in a test tube.

[@IAmNotARobotPinkySwear]

@@EugeneKhutoryansky amazing, you have a wonderful way of explaining complicated things. I always look forward to your videos, you are doing humanity a good service. Thank you!

[@EugeneKhutoryansky]

Thanks for the compliments.

[@Teinc3]

Does anyone know what the 2nd song is?

[@EugeneKhutoryansky]

Road_to_Moscow from the free KZbin audio library

[@ep5659]

The music is rather distracting. But I appreciate that you took the time to lower the volume during narration. It helps.

[@ConradSpoke]

Man, this music. Is this a science lesson or a commercial for the US Army?

[@moshe778950101]

In the animation with the box and green spheres. If the box would completely penetrate the first layer of fluid, so it's under the surface, will it continue to sink? In the animation the fluid behaves almost like a solid so I wonder. In theory the box should completely sink.

[@Bill-Lions-musk-dye]

my favorite surface tension is the one with the cool green goggles guy in it

[@ishupogs4432]

The music is so lit

[@cvp5882]

Quite the soundtrack going on here 😂

[@basemrajjoub7081]

Amazing work! 👍 What software did you use for this simulation?

[@EugeneKhutoryansky]

Thanks. I used "Poser Physics." I explain how I make my 3D animations in my video at kzbin.info/www/bejne/bHnPZpesdp1ri9E

[@robbiekavanagh2802]

Cool video! I'd never really thought about how surface tension works! I'm curious as to whether this model can explain how 'breaking' surface tension would allow an object previously held up to sink to the bottom. It's strange how it's called surface tension when the attraction between the liquids' molecules is present throughout.. Is it stronger at the surface?

[@EugeneKhutoryansky]

It is different at the surface because the forces from the other molecules of the liquid are not balanced out in all directions, as they are internal to the liquid.

[@MrFrenchyge]

Got distracted by the background guitar shredding.

[@MrLikeAsatellite]

So there is no "film" or something like that on the surface of a drop of water?

[@EugeneKhutoryansky]

Water is H2O. There is nothing for a film on the surface to be made out of, other than more H2O.

[@Grateful92]

Thanks!

[@EugeneKhutoryansky]

You are welcome and thanks.

[@Grateful92]

@@EugeneKhutoryansky getting a comment from you is like having the privilege to see whole milky way in person from space. Thanks teacher 🥺

[@Mysoi123]

Can you make a video cover the topic of population inversion and negative temperature?

[@EugeneKhutoryansky]

I will add that to my list of topics for future videos. Thanks.

[@Mysoi123]

@@EugeneKhutoryansky Thank you! ❤️

[@62Cristoforo]

The background music choices were weirdly diverse; from heavy metal to Catalonian baroque chamber music

[@sharkyplanet5317]

Awesome

[@EugeneKhutoryansky]

Thanks.

[@TheeSlickShady_Dave_K]

Liked and subbed 🏆

[@EugeneKhutoryansky]

I am glad you liked my video and I am glad to have you as a subscriber.

[@TheeSlickShady_Dave_K]

@@EugeneKhutoryansky I usually binge-watch a few in a row Excellent animation Excellent explanation Thank you thank you

[@EugeneKhutoryansky]

Thanks for the compliments.

[@BrendaCreates]

Yay!

[@pratikkumarxis3pcm978]

Thanks babe

[@toshaxar]

Can you please share your code for this model?

[@EugeneKhutoryansky]

My code wouldn't be meaningful, because it is a plug in into the simulation program "Poser Physics", which is a plug in into the Poser animation software.

[@agsiar]

Are these simulations running on propeietary software or is it libre? I'm interested in learning how to make this, or at least use it.

[@EugeneKhutoryansky]

I wrote python code which is a plug in into the simulation program "Poser Physics", which is a plug in into the Poser animation software. I explain how I make my 3D animations in my video at kzbin.info/www/bejne/bHnPZpesdp1ri9E

[@agsiar]

@@EugeneKhutoryansky thank you!

[@wearemany73]

This channel has always had the strangest music. I love it! 😊

[@theorixlux2605]

Have you tried doing the superliquid simulation with three dimensions?

[@EugeneKhutoryansky]

For 3 dimensions, I need to simulate a much larger number of spheres to be able to have a fluid of sufficient height. The greater the number of spheres, the more time is necessary to calculate the simulation. I don't think my computer would be able to complete a simulation with this many spheres in a reasonable amount of time.

[@theorixlux2605]

@@EugeneKhutoryansky I thought as much; what you've already is pretty cool nonetheless!

[@admaneb]

Finally I understand

[@cerulity32k]

I FINALLY UNDERSTOOD WHY THIS HAPPENS WITHIN 15 SECONDS AND THAT IS BLACK MAGIC

[@EugeneKhutoryansky]

I am glad my video was helpful.

[@pogoram]

Газ в узком месте движется с большей скоростью и уравновешивает концы - вихрем. Вихревой поток имплозивен, и потому давление на стенки падает. Примерно как если бы вы протягивали резиновый жгут сквозь трубу. Чем сильнее тянешь, тем тоньше резинка и меньше сопротивление поверхности... P.S.: Денежку за сопричастие к экспрессивному открытию присылать на карту.

[@bhi31]

Amazing........ Which softwares use for these videos?

[@EugeneKhutoryansky]

Thanks. I explain how I make my 3D animations in my video at kzbin.info/www/bejne/bHnPZpesdp1ri9E

[@JuiceyDev]

Video : 🔘🔘🔘🔘🔘🔘🔘🔘⚡😲🧐💡 Audio : 👨‍🎤🎸⚡⚡

[@teslathejolteon8007]

What is the name of the track?

[@EugeneKhutoryansky]

All the music in this video is from the free KZbin audio library, and the names of the songs are the following. Double_Helix Road_to_Moscow

[@TheSourav77]

Awesome as always. Sick guitar BGM! Can you share the artist?

[@EugeneKhutoryansky]

Thanks. All the music in this video is from the free KZbin audio library, and the names of the songs are the following. Double_Helix Road_to_Moscow

[@justinle998]

But why is there an attractive force between 1) fluid molecules and 2) the fluid and the walls to begin with?

[@ryanpiotr1929]

Where did the kinetic energy go? Is there friction in these models?

[@EugeneKhutoryansky]

In this model, the friction was set to zero, but inelastic collisions were used.

[@williezer0]

missed opputunity to play the band liquid tension experiment as soundtrack lol (theyre basically dream theatre wittout vocals)

[@BenjaminSteber]

Osaka brings the science yet again. How about a video on those breakthrough Chinese nuclear batteries?

[@monstermaker585]

Wow surface tension changed a lot since I last played half life

[@NatsukiTakaama]

🔮 Search these words in the following order "N" then "🅰️" whch has a "B" next to it and finally ends at "I" Give a space after that and write "🅰️" followed by "S" with an "L" next to it and then put an "I" at the end. This is another channel just like this channel.