Super Hydrophobic Surface and Magnetic Liquid - The Slow Mo Guys

  • Published on Jan 6, 2014
  • Gav and Dan are in the GE lab using nanotechnology to show you cool liquid physics at 2500fps.
    The first experiment shows a superhydrophobic surface that GE has been working on. Surfaces like this can be useful in aviation and wind power to reduce ice build-up or for self-cleaning applications. The surface traps a layer of air using its nanoscopic structure, which prevents water from sticking.
    The second experiment also demonstrates how the nanoscale differs from the macroscale, this time with iron filings. Iron filings at the macroscale can be easily distinguished from the liquid they are in. When reduced to the nanoscale, magnetic nanoparticles can behave like a liquid magnet. Gav and Dan demonstrate this by showing magnetic liquid flowing upwards against gravity towards a magnet.
    Links to GE's videos:
    MEMS -
    Cold Spray -
    Follow Gav on Twitter -
    Follow Dan on Twitter -
    Super Hydrophobic Surface and Magnetic Liquid - The Slow Mo Guys
    Filmed on a Phantom Flex at 2500fps
  • Science & TechnologyScience & Technology

Comments • 6 800

  • Poli
    Poli 14 days ago

    It looks like venom

  • Aditya Jha
    Aditya Jha 16 days ago

    Literally, what I do everyday!!! :)

  • Sam Millar
    Sam Millar 23 days ago

    I love that, that is absolutely beautiful.

  • Mathew Cobb
    Mathew Cobb 28 days ago

    I’m still in the middle of watching but I hope they put the water in a hydrophobic box and make it splash around

  • Sajid Mahmud
    Sajid Mahmud Month ago

    So that's how venom works i c

  • Toby Dominus
    Toby Dominus Month ago

    Looks like another demo

  • kabyzila
    kabyzila Month ago

    Больше пиздежи! Не дали даже посмотреть как это все происходит. Давай 2-3 минуты в словмо.

  • afoead
    afoead Month ago

    Wow, very interesting, I paused the video on several moments, and screen captured it, BOOM, a nice abstract liquid wallpaper... XD

  • Hampoon
    Hampoon Month ago

    They want you to film their Windows XP :)

  • Dennis Johansen
    Dennis Johansen Month ago

    With Gav's hair like that he bears a striking resemblance to Flint Lockwood.

  • macaraina
    macaraina Month ago


  • rich bitch
    rich bitch Month ago

    why's the guy on the left at 00:10 looks like Flinn from "Cloudy with a chance of meatball?"

  • Faria And Shezan
    Faria And Shezan Month ago

    This is so therapeutic to watch specially the the ambient music

  • E Hop
    E Hop Month ago

    Ahh, good ol Slow Mo Guys. Back when it was the good times, with two friends having fun to create cool videos that made you think about the world and physics. Before the painful scripting and stage acting of large scale crews that would clean up their destruction-for-no-reason projects, paid for by studio sponsors. Bring back the old fun videos....
    Either way, Thanks for this video, chaps!

  • Szymon Trebunia
    Szymon Trebunia 2 months ago

    4:53 so funny omg

  • BS Virdi
    BS Virdi 2 months ago

    you guys are wishes...your ideas are really unbelievable..u r revealing much things in slow.. keep it up..

  • London Flyer
    London Flyer 2 months ago

    I thought the title said super homophobic surface

    SEB FLYNN FILMS 2 months ago

    The liquid being called to the magnet looked like the symbiote

  • john Doe
    john Doe 2 months ago

    Like tesla tweeted: we live in a VR. inmho thats the only thing that makes any sense of it all.

  • Vanonym
    Vanonym 2 months ago

    There are a lot of amazing wallpaper here XD

  • Shriram Ravichandran
    Shriram Ravichandran 2 months ago

    What music is it??

  • DanCraft
    DanCraft 2 months ago

    This is scientifically scientific.

  • Ilham Saputra
    Ilham Saputra 2 months ago

    anyone, give me the name of backsound when slowmotion play pls

  • Sam Villa
    Sam Villa 2 months ago

    At 3:04 I can just imagine Gav holding a mic up to his mouth while he shwishes water around

  • Rajneesh Rajan
    Rajneesh Rajan 3 months ago

    4.25 to 4.52 awesome!!!

  • The Circle
    The Circle 3 months ago

    Seriously what is up with 5 min should be hours of a video for us to watch at leisure, we can speed it up ourselves you know ..

    • The Circle
      The Circle 3 months ago

      If we want to sided it up at all, but yeah instead you give us ten seconds of slow motion and then jump cut or speed up to the end

  • The Circle
    The Circle 3 months ago

    I wish you guys would actually make long videos of slow motion instead of ten second clips then a dumb speed up.

  • CorbloxoPlays
    CorbloxoPlays 3 months ago

    I’m time lapse

  • Brenden Davies
    Brenden Davies 3 months ago

    I love how the smaller water drops just sort of bounce along

  • Alex Allsing
    Alex Allsing 3 months ago

    At 3:00 if you look at the surface, you can see how minuscule the depth of field is. Crazy!

  • The Grim Reaper7200
    The Grim Reaper7200 3 months ago

    2:15 reminds me of the game Portal

  • Salvacion Buaron
    Salvacion Buaron 3 months ago

    When liquids are in war. XD

  • Angeluzito08
    Angeluzito08 3 months ago

    At 2:48 experiment start...

  • Kitsune Otaku
    Kitsune Otaku 3 months ago

    It’s like half-done jello...

  • OneStar VFX
    OneStar VFX 3 months ago

    At first i read homophobic 😂😂😂

  • Iszotic Isothetic
    Iszotic Isothetic 3 months ago

    this looks like those 3D simulations of fluids that cannot estimate superficial tension.

  • Steph Ss
    Steph Ss 4 months ago

    The liquid one is rather blurry tbh. I would have liked to see how the material repelled the fluid...instead of the fluid just being repelled. The iron liquid was super dark, yeah. This was a rather disappointing episode.

  • Acrero_YT
    Acrero_YT 4 months ago

    Blue dominated red XD

  • Dragon Scar
    Dragon Scar 4 months ago

    Omg this video is from 4 years ago... anyone else watching in 2018?

  • Dragon Scar
    Dragon Scar 4 months ago

    I thought you were going to put the magnetic liquid onto the hydrophobic surface. ;(

  • Solis Joe_FIRE
    Solis Joe_FIRE 4 months ago

    The second time it looked like a a wave!

  • starwendy9
    starwendy9 4 months ago

    Reminds me of Portal the game

  • Warren
    Warren 4 months ago

    best one yet :D

  • krishna jadav
    krishna jadav 4 months ago

    Turns out liquid droplets can bounce and roll like a ball with specific surface. And I am seeing this in 2018

  • Jackson Martin
    Jackson Martin 4 months ago

    The magnet liquid in slow mo reminds me of the avengers for some reason

  • Anestasia Clarke
    Anestasia Clarke 4 months ago

    You could get some good screen savers out of this video

  • IM Projects
    IM Projects 4 months ago

    Become a part of another amazing Hydrophobic-Waterproof Technology! First end product NOW LIVE!

  • Vaat Dafaak
    Vaat Dafaak 4 months ago

    what happnes if i squeeze a bit...? lol

  • Pankaj Bhadoria
    Pankaj Bhadoria 4 months ago

    You can make hundreds of abstract wallpaper from this video.

  • Pedro Folloni Pesserl
    Pedro Folloni Pesserl 4 months ago

    What if they put the ferrofluid on the hydrophobic surface and then put a magnet under it

  • craig kelly
    craig kelly 4 months ago

    General Engineering is not a good company. sad to see the slow mo guys sell out.

  • Endsterskillz Gaming
    Endsterskillz Gaming 4 months ago

    This feels like the gel inside a portal gun

  • Brad AmeerBeg
    Brad AmeerBeg 5 months ago

    He was skinnier back then.

  • N O T A B O T 2 0 0 0
    N O T A B O T 2 0 0 0 5 months ago +1

    So weird. It looks like jello.

  • MiniBananaMan
    MiniBananaMan 5 months ago +1

    i find it funny that thay have a danger marker on the water bottles.

  • Kean Strydom
    Kean Strydom 5 months ago +1

    If you took a mug and sprayed it with hydrophobic spray on the inside, wouldn't you create a never need to wash mug?

  • Silly Apples
    Silly Apples 5 months ago

    What’s up with Gav’s hair? 😂

  • Aleksandra Musiała
    Aleksandra Musiała 5 months ago

    Dan is always so hot 🔥

  • Davis Tuck
    Davis Tuck 5 months ago

    You could take clips of all of their videos and make the coolest like screen saver video loop ever

  • aizaleeh sagandingan
    aizaleeh sagandingan 5 months ago

    the things are bouncing

  • SRFriso94
    SRFriso94 5 months ago

    I love how in the backlit shot, you can see just how narrow the field of focus is on that camera, it's something like maybe a centimeter. Proper job on getting it.

  • Kostas Georgiou
    Kostas Georgiou 5 months ago

    Wanna do something stupid today? Put their videos on 2.0 speed.

  • ShyFall
    ShyFall 5 months ago

    Charlie and Mac from Always sunny, Before they got batshit crazy, Colorized!

  • royce lewis
    royce lewis 5 months ago


  • Brad Dharma
    Brad Dharma 5 months ago

    Its so surreal, it almost looks all CG.

  • Alexander Stottman
    Alexander Stottman 5 months ago

    Just me or Does it look animated

    XENOCIDE 5 months ago +1

    Carnage and venom

  • Super Plush
    Super Plush 5 months ago

    Uh oh. Looks like someone plagiarized this video. Fast forward to 8:39:

  • PMT Gaming
    PMT Gaming 5 months ago

    4:35 venom

  • Lee Motosuwa
    Lee Motosuwa 5 months ago

    Daniel wasnt fat

    TRIGAMAN ROLLAXK 6 months ago

    These dudes are so good at wat they do

  • daryl bacus
    daryl bacus 6 months ago

    Gav kinda looks like flint lockwood

  • Fazl Fazlu
    Fazl Fazlu 6 months ago

    Whats the music you use while slow mo?

  • L3TH4L1TY
    L3TH4L1TY 6 months ago

    Only a matter of time before hydrophobia becomes a hate crime

  • John Plummer
    John Plummer 7 months ago +1

    tsunami wave at 2:49

  • John Brigs
    John Brigs 7 months ago

    The word you’re after is ferrofluid.

  • todlydoodle do44
    todlydoodle do44 7 months ago

    I subscribed to your cool channel subscribe to me back

  • Kaitlin
    Kaitlin 8 months ago

    Wow. They’ve come so far

  • Arindam Chakraborty
    Arindam Chakraborty 8 months ago

    can you try any chemical reactions...?

  • Gabriel Thornton
    Gabriel Thornton 8 months ago

    You guys should do the same thing with the ferris liquid again but the test tube surrounding the magnet should be made frome a hydrophobic material so the fluid bounces off and around the tube.

  • ela489
    ela489 8 months ago

    I really dont know why, but it reminded me of portal hahaha

  • David Urban
    David Urban 8 months ago

    Awesome video! But now I have to pee...

  • TheNexan
    TheNexan 8 months ago

    I can't believe you'd condone this blatant hydrophobia on youtube smh gavvy

  • The Red TNT
    The Red TNT 8 months ago

    Spot the plumbus

  • Akshay Sapra
    Akshay Sapra 8 months ago

    theres just so much we are missing with normal speed

  • End Finity
    End Finity 8 months ago

    It's interesting to watch. Water seeks it's own level. This stuff doesn't.

  • End Finity
    End Finity 8 months ago

    GE has bigger toys than y'all do.

  • Joe Potts
    Joe Potts 8 months ago

    3:14 now i want jello x)

    SOBHEN PATNAIK 8 months ago

    Too much background noise

  • SHarpyHaMMeR
    SHarpyHaMMeR 8 months ago

    This is absolutely one of my fav episodes :)

  • ilyazzar
    ilyazzar 8 months ago


  • WhatWereTheyThinking
    WhatWereTheyThinking 8 months ago


  • Phoenix Borealis
    Phoenix Borealis 8 months ago

    I'm getting lots of suggestions for the classics lately.

  • frost bite
    frost bite 9 months ago

    Hey guys i hope you dont mind that i screen shot a bunch of this vid the paint ball v paint ball vidand the bullet race vid and used them for backgrounds and stuff cuz i found it really cool

  • Jasper Newstead
    Jasper Newstead 9 months ago

    dan is so yummy in this vid

  • Nyla - Amara Smit
    Nyla - Amara Smit 9 months ago

    Looks cool but i dont understand it.. 🤔🤔😢🕊

  • ZYCLON -666
    ZYCLON -666 9 months ago

    Dan is so skinny

  • James Albright
    James Albright 9 months ago


  • Joshua Lander
    Joshua Lander 9 months ago

    The Legend of Zelda: Twilight Princess - Freaking chu chus

  • Catherine Farrant
    Catherine Farrant 9 months ago

    You used more blue then red