Added: 3 years ago
From: nottinghamscience
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  • hydrophobic paint on a car?

  • but will it blend?

  • snort it and breathe underwater.

  • @xXDemonWater098Xx except if you think about it, it wont work... because the oxygen i assume you are thinking you are going to breath, is already bonded to hydrogen (water) and it would repel both the oxygen and hydrogen

  • what i want to know is, is it flamable?

  • what is you had a super hydrophobic shamwow?

  • This is basically rain-x solution

  • @Hayeshacker0NE no its actually much better

  • Have you ever wondered what would happen if they made personal lubricants out of this? Interesting.

  • what would happen if you put dry ice in there?

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  • Hey Brady could you re-record the experiment in this video with a newer camera? I would love to see these hydrophobic materials more!

  • i use to defy the laws of physics, but then i took an arrow to the knee

  • this guy is so monotone.

  • If they make shoes with this, can I walk on water like Jesus?

  • @MatheusNoi No, it sink's but it makes a bubble around the item....incase you were serious

  • If I put this on my feet, can I walk on water like Jesus?

  • no you will float it is displacing more water

  • if you jumped in to water with a suit covered in this stuff wouldnt you sink and not be able to get back up because the water would repel you?

  • CARPET PROTECTOR :3

  • If you made a body suit out of it and jumped into a pool would you just fall to the bottom?

  • @zheffner666 Perhaps you'd smack the pool like concrete.

  • @zheffner666 No.

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  • @zheffner666 What if you jumped off a boat into the sea?

  • @zheffner666 Nop, there wouldnt be any difference, even if the fabric is not in direct contact with water. 

  • @zheffner666 No, you are still less dense than water.

  • what if you coat a pool with it or a glass?

  • @zheffner666 In that case, once you completely drink the glass, no drops of water will remain on the edges.

  • Would this be ideal for motorists?

  • where do you get this stuff and how expensive is it? looked around on their site and didn't see where to buy it

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  • you sound like that monkey from Spongebob

  • If I put this on the bottom of my shoes..

    Can I walk on water?

  • I want to coat my sled with the stuff XD

  • whats the voltage between the water and copper coated surface?

  • Super hydrophobic substances = Me

  • Put it on your phone and it won't get wet! :)

  • could you but this on car brake disks so they dont get wet when you drvie through a puddle?

  • 0:30

    why the secret ?

    science man keeping stuff secret makes him not a science man

  • He's probably legally barred from saying.

  • hmm imagine a super hydrophobic boat

  • IF YOU know the periodic symbol for Nobelium, Vanadium, Silver, Iodine and Sodium, you get....

    No VAgINa.

  • @marcusbondi I'm sure you're right.

  • Will superhydrophobic substances repel oil based paint e.g. the one used for making graffit. And if so, is it possible to create a coating that would prevent graffit from adhering to a surface?

    Thanks

  • @TheUnivers101 There's no telling what someone's going to put in a spray can, there can be any kind of metallic or acrylic bases in the paint, and it dries very quickly and is spayed in an even caoting fine mist, so it wont come off the surface of it's own accord

  • he looks like sheldon! hahaha

  • "its like teflon but has another pieace on the end, which i wont tell you what it is." Not much of a "secret" there, it is just a silanol. Any hydrophobized silica precipitate could easily bond with polytetrafluoroethylene(Teflon­) such as trimethylsilanol.

  • @Lokivoid Yeh that's what I was thinking.

  • make this into a competition swimming suit yeaaaa

  • i'd like to make home made water reppelent for motorcycle visor.what should i use?

  • .thats coating the glass with hydrophylic=water atracting and photoactive matterial like titanium dioxide which actualy cleans the surface by creating oxidative -cleaning molecules when it is energized by sunlight and then dirt is washed away by rain :)...

  • you can achive the same surface hydrophobic-water repeling effect by covering a surface with soot -black carbon- for example by holding a metalic obgect above a soot producing black flame of a candle, ofcource soot is not very stable and it can scrach off easily and luse the hydrophobicity as most hydrophob materials this guy investigates ... also about keeping surfaces clean like the photovoltaick panels there is another method available ..

  • So is there super hydrophillic?

  • Rainex

  • whats with the secret material? why wont you tell us what it is? is it dangerous?

  • @iSynOSX No, it's just a trade secret. They want to keep it secret cus it's worth money.

  • So... How would this affect say a speed boat if you cover the hull with this kind of material? 0_o

  • @88Kamikaze69 probably nothing, because speed boat still hits the water very hard when it bounces

  • @lhrmeonom

    Well... unless the material itself gets broken/flattened or whatever I'm thinking it should provide some odd glide and bounch which ought to give enough time above water for new air to collect in the surface if it gets pushed out, no?

    Nano tube technology ought to be strong enough, so I'm thinking it might reduce drag, speed and fuel consumption quite considerably in theory.

  • @88Kamikaze69 Oh yeah, I thought you were talking about the boat just floating above the water xDDDDDD

  • @lhrmeonom

    Well, in slower boats I'm thinking that effect should be possible to some extent, same concept of increasing speed, reducing drag and fuel consumption. That reminds me, where did the laminated and impregnable to dirt clothing they promised back in the 90's go? I'm still waiting for those clothes you only have to rinse in cold water to clean ^^

  • @88Kamikaze69 BRILLIANT.

  • @DeadlyPear

    I dont know about that, just seemed rather obvious to me 0_o

    Unfortunately the principal is far more applicable on weapons and water crafts of war but I'd rather not mention how although I think those who makes such things already know this.

    Could make a lot of rather amusing water toys as well, long distance water skipping discus comes to mind.

    Not to mention applying it to surf and body boards.

    I wonder how it would affect extreme higth diving when applied to suits as well.

  • @88Kamikaze69 Well. It would probably in a sense make water slippery. This also means less control on boats, boards, machines of war, etc. But until someone test these suggestions we won't be for sure about what would happen.

  • @88Kamikaze69 Well... win?

  • @88Kamikaze69 Or a submarine!

  • @88Kamikaze69 it would explode

  • @Terabytekit

    .... Why?....

  • @88Kamikaze69 Giving it a good guess it might be a bit faster, but more unstable.

  • @88Kamikaze69 water doesnt stick to the hull of a boat anyway...

  • @AfroNinja720

    Nobody claimed that it did.

    But it does create friction which reduces speed and increases fuel consumption.

    Gliding along on a "cushion of air" as it was would undoubtedly produce a lot less friction if for no other reason than the density difference between air and water.

  • @88Kamikaze69 Because the speed boat will not be affected as much of the waters resistance.

  • @88Kamikaze69 the resistance caused by the water isn't due to friction but more to the fact that the water absorbs the kinetic energy of the boat, causing it to slow down. So it would slightly increase the speed of the boat, but only very slightly.

  • I have a Crested Gecko and their skin behaves exactly how you describe at 1:55, a whole sphere of water will sit on top of their rough scales.

  • All the research done here only to put it on car windows and stop using wippers. Science today is a shame

  • @deth84 or put it in glassware to not have to clean them etc. the possibilities for any piece of technology is only limited by your imagination

  • @deth84 He mentions lots of other applications.

  • They should make swimsuits out of it.

  • hey does it mean that if we expend the surface of the copper covered with this hydrophobic "rough" stuff as well as the amount of watter on it, we may possibly be able to make a swimming pool without walls? sorry for the weirdness of the question but it's just and idea.

  • @magaritipivar

    You mean a giant drip that you can swim on and in? The reason they form drops like that is as the surface tension in water will want to contract the exposed surface of the water to the smallest possible size usually a curve, this fights against gravity pulling the drop down, as it is pulled down the drop will get fat at the bottom until the force of the surface tension isn't enough to keep it together and the drop will split until gravity and the surface tension are in balance.

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  • Wow, this guy have such a deep voice! I wonder if he's in University Choir or something!

  • any luck making it transparent?

  • Would it make ships or subs more efficient by reducing drag?

  • super spreading = super capillary action?

    glad to see lots of brain stalling and ummm in there. something politicians don't have to worry about, since they can make it up on the spot. :P

  • This could be good for super efficient water pipes.

  • We should find out a similar matherial that do the same but with the air...could be a good way to help us to safe some energy on rocket propulsion...:)

  • @FelipeZucchetti It doesn't work that way. This surface isn't reducing the water resistance either

  • very nice video

  • substitute for world cup ski and snowboard bases as well as surfboards, wake/kiteboards etc... perhaps.  super fast!

  • this must be why some boats are made with steal bottoms / copper?

    makes sense

  • Vaguely annoyed. Why does goretex work so well in the lab, but wets out when I'm in a downpour on Dartmoor?

  • My skin does that, though a bit less strongly...

  • coat the bottom of a boat with it

  • sounds like then Next-Gen military Submarines surfaces will use that!....

    would make also nice PROPELLER be that for boats, submarines or small-airplaners! Keep it up man!

  • I need this on my carpet to keep my Jizz from sticking.

  • @kjfcijsidjisjbiojsoi: Is that the name of your volcano?

  • @kjfcijsidjisjbiojsoi Then it will run across the room, hit the floor molding, shoot to the ceiling and stick. You will have fun explaining that one.

  • pretty cool lol

  • I think making a surf board or skim board with that super hydrophobic surface would be a cool idea

  • knowmore wnidow wipers lol

  • "reasonably exciting"...

    what a scientist sort of thing to say...

  • can't we put this on like submarines or something so that theres a layer of air around it so the pressure doesn't change? lol

  • @yyyy2999 The pressures would still change, would be great if it didn't :P

  • @yyyy2999 if you put it on a boat or a submarine, the air layer slowly dissolves into the water and is lost, so it doesn't last.

    There's also a problem that the rough surface this relies on tends to be fragile. Not sure about this one, copper oxide+teflon, but I have heard that.

  • That's not how water pressure works. The air layer will be pressed against the submarine by the water around it just as hard as the water would have. It would allow the submarine to glide through the water better though.

  • @nambinhvu i see, but it'll still help.

  • Check out my video lol super hyperbolic water lol water that is super hyperbolic. Watch the 3rd one it's best lol

  • it wont stop rain

    but i know what you mean

  • car windscreens should have that glass

    to stop rain

    i want some

  • cameraman sucks..

  • He's saying that the surface of the Glass is smoother and allows more of the droplet to contact the surface. so it contacts at almost the hemisphere and so that would be close to a 90* contact point.

    The surface of the Copper is far rougher and allows for much less of the water to contact the surface, because the roughness allows air to collect under the water droplets, and assist in the resistance of the water. so that causes a smaller section of the water to contact the surface.

  • @NexIuguolo : what happens if the copper(alloy) is finished to a mirror (0.05micron) prior application of the "teflon"

  • @USmetallist

    I wouldn't know, I'm just clarifying what the guy in the vid said!

    I feel like the copper would be susceptible to oxidation and other erosion- at least more so than the glass, which would negate the benefits of polishing the copper unless it was somehow sealed, in which case you should use a more cost-effective base surface anyhow!

  • wats with the angle stuff?

    i dont understand it could someone explain?

  • @thekid

    i believe the angles hes refering to is the shape of the droplet on the surface of the two matterials. it sits flater and more abruptly on the glass. so it has more of an angle.

    the treated copper has more water resistance so the water beads more and has almost no angle of interaction because its not touching it.

  • check wikipydia with "hydrophobe".. there are diagrams showing the contact angle and explaining how that works.

  • chack wikipedia with wordphrase "hydrophobe". the article has diagrams with the contact angle explanations.

  • What if you made a submarine's walls out of this material?

  • copper is a very good conductor of electricity,the odds are that you'd have problems with your gizmos cause you'd end up with some mumbo jumbo

    sorry my weird theory :L

  • expensive. gore-tex is just 1 layer of this and thats super expensive.

  • then it wouldn't really be a submarine anymore... more like a boat...

  • I don't understand, what does he mean by "half circles" and "circle"? Is he talking about the Teflon on a molecular level, its formation or something? And what was he talking about when he said "it's tilted 90°...". It didn't quite make sense to me.

  • he means that if you look at the water drop from the side, on the glass it looks like half a drop, but on the copper the drop is almost round. when he says it is about 90°, he is talking about the angle between the edge of the and the plane of the glass.

  • If you look at the drop of water while it's resting on the glass, then it's not a spherical ball of water, but like a dome/hemisphere of water, laying heavily on the glass surface. When water sits on the black surface, it forms a sphere, because it's being repelled more. That's the circle/half-circle comparison. The angle is the angle at which the drop of water meets the surface, at the edges of the drop.

  • Cool What substrate did you use?

  • Actually it's not that he won't tell you, it's that he can't tell you because it's a very heavily guarded trade secret.

  • Nice, but will it protect me from R. Kelley if I cover my face with it?

  • lmao

  • @baguazhang2 no, but it WILL protect from chuck norris and charles nelson reilly, seeing as though they are both water powered.

  • @baguazhang2 lmfao

  • @baguazhang2 hahaha

  • @baguazhang2 Thankfully it will. So you have no need to worry about anything.

  • cool!

  • think of the coating like a bed of nails and the sleeper as the water.

  • i heard that the harder a surface the more waterproof it is, so why dont isnt there diamond coats? Is 50Cent a surfactant chemist?

  • interesting, but not exciting.

  • i agree he talks TOO much, too much talk not enough demonstration.

  • Communists?

  • His voice, god damn, its such annoying, call Martyn and tell him to explain this for us.

  • At-least he knows that "its such annoying" doesn't make any damn sense.

  • So if I coated myself in this stuff and jumped into some water, I wouldnt actually get wet..?

  • no, but you'd get cancer

  • @LouisJopling theretically no, you'd be dry untill you went to deep and the pressure would squeeze the air out

  • @LouisJopling Actually about 1 percent of you would get wet. So you woulnd't notice.

  • Obviously.

  • That substance likes water just about as much as I like having a stranger take a dump in my toilet, overflow it, and climb out the window, running away without telling me.

  • @BinkieMcFartnuggets i was having a dump just after the builder did, then thought "his dick has just been exactly here and against the same ceramic... he's just done a sexual assault on me, in essence"

    can I count on you're vote in my favor on that jury?

    I think it's high time that "toilet borrowing" was finally outlawed.

    a mans bowl is his castle, the last refuge from nagging, where he can steal away ten minutes to read the catalogs. and now theres all this penis touching happening >:(

  • @BinkieMcFartnuggets Look, I apologized for that.  Will you never let it go?

  • @BinkieMcFartnuggets oops im sorry, you should have had a crapophobic molecular covering for your bathroom.

  • i was wondering... because if you put a lotus leaf long enough in the water( which is also hydrophobic surface) it'll get wet somehow... b'coz i tried it lot's of time...(i have lot's of lotus in my house) and i just wonder will this things ok if u dip it in the water for a long time?...

  • Not to belittle the value of what he's saying in any way but-- my goodness he's cute. We didn't have this breed of cute in the English department. And certainly not in the theatre department. My hat's off to Mrs. Blue-t-shirted-chemist.

  • Thank You for this presentation.

    What is the name of that particular polymer?

  • Could you coat a Laptop in it I wonder?

  • The rough type could be placed on boat bottoms to make less friction.

  • "super non-wetting" lol

  • what if you made a bowl out of that stuff? Where would the water go then?

  • It would stay in the bowl, but it wouldn't have any contact with the bowl itself because of the air between.

  • What happens to this stuff at higher pressures?

  • cabbage leaves are naturally hydrophobic.. unless, ironically, you don't water them enough

  • Very informative Neil Shirtcliffe thank you very much for explaining that in detail it's a wonderful thing to inform the human community.

    also thanks to the uploader whom I have no current knowledge of besides this video.

    It's also interesting to see the UK comming out with science stuff consistantly.. I wish america had taken this route.

  • Wet suits?

  • Can some one make me a non-stick toilet bowl -Please?

  • lmao! i could do with 1 of them!

  • I heard about these urinals that don't require any flushing. I bet most of the water we use goes down the toilet. What a fantastic water saving idea. Nice comment bro.

  • Hehehe...

    It wasn't the urine that bothered me :-)

    If you just knew how many times I have to fush to clear the bowl........

  • Neil's a what?

  • ahhahah he wasn't gonna be a builder with a surname like that.

  • Brilliant!

  • surface tension?

  • yes partly but i think the gortex stuff and the prickly copper have something to do with it

  • I learn something everyday