I'm here to show you how something you can't see can be so much fun to look at. You're about to experience a new, available and exciting technology that's going to make us rethink how we waterproof our lives.
Ovdje sam da vam pokažem kako nešto što ne vidite može biti veoma zanimlljivo za promatrati. Svjedočit ćete novoj, dostupnoj i uzbudljivoj tehnologiji koja će nas natjerati da ponovno promislimo na koji način stvari u našim životima činimo vodootpornima.
What I have here is a cinder block that we've coated half with a nanotechnology spray that can be applied to almost any material. It's called Ultra-Ever Dry, and when you apply it to any material, it turns into a superhydrophobic shield. So this is a cinder block, uncoated, and you can see that it's porous, it absorbs water. Not anymore. Porous, nonporous.
Ovdje imam jedan betonski blok kojemu smo jednu polovicu prevukli sa nanoprevlakom koja je primjenjiva na bilo koji materijal. Prevlaka se zove "Ultra-Ever Dry", a kada ju nanesete na bilo koji materijal, pretvara se u superhidrofobni zaštitni sloj. Dakle ovo je betonski blok, neprevučen, i vidite da je porozan, upija vodu. Više ne. Porozan, neporozan.
So what's superhydrophobic? Superhydrophobic is how we measure a drop of water on a surface. The rounder it is, the more hydrophobic it is, and if it's really round, it's superhydrophobic. A freshly waxed car, the water molecules slump to about 90 degrees. A windshield coating is going to give you about 110 degrees. But what you're seeing here is 160 to 175 degrees, and anything over 150 is superhydrophobic. So as part of the demonstration, what I have is a pair of gloves, and we've coated one of the gloves with the nanotechnology coating, and let's see if you can tell which one, and I'll give you a hint.
Što onda znači ako je nešto superhidrofobno? Superhidrofobno je prema tome kako mjerimo kapljicu vode na toj površini. Što je kapljica okruglija, površina je više hidrofobna, a ako je kapljica izrazito okrugla, onda je površina superhidrofobna. Svježe ulašten auto - na njemu molekule vode padaju na otprilike 90 stupnjeva. Prevlaka vjetrobranskog stakla daje otprilike 110 stupnjeva. Ali ovo što ovdje vidite je između 160 i 175 stupnjeva, a sve što je iznad 150 stupnjeva je superhidrofobno. Stoga kao dio demonstracije imam ovdje jedan par rukavica, i prevukli smo jednu od rukavica sa nanoprevlakom, pa hajdemo vidjeti možete li prepoznati koju, a ja ću vam dati natuknicu.
Did you guess the one that was dry?
Jeste li pogodili da je to ova koja je suha?
When you have nanotechnology and nanoscience, what's occurred is that we're able to now look at atoms and molecules and actually control them for great benefits. And we're talking really small here. The way you measure nanotechnology is in nanometers, and one nanometer is a billionth of a meter, and to put some scale to that, if you had a nanoparticle that was one nanometer thick, and you put it side by side, and you had 50,000 of them, you'd be the width of a human hair. So very small, but very useful.
Kada imate nanotehnologiju, ono što se događa je da smo sada u mogućnosti promatrati atome i molekule, te zapravo upravljati njima u svrhu postizanja korisnih primjena. I ovdje zbilja govorimo o malim dimenzijama. Nanotehnologiju mjerite u nanometrima, a jedan nanometar je milijarditi dio metra, a kako bi to stavili u nekakvu perspektivu, zamislite da imate jednu nanočesticu koja je široka 1 nanometar, i ako slažete takve čestice jednu do druge, i tako složite 50,000 njih, dostići ćete širinu ljudske vlasi. Tako da je to vrlo sitno, ali vrlo korisno.
And it's not just water that this works with. It's a lot of water-based materials like concrete, water-based paint, mud, and also some refined oils as well.
I voda nije jedino sredstvo na koje ovo djeluje. Djeluje i na puno materijala baziranih na vodi, poput betona, boja na bazi vode, blata, ili nekih naftnih derivata.
You can see the difference.
Možete vidjeti razliku.
Moving onto the next demonstration, we've taken a pane of glass and we've coated the outside of it, we've framed it with the nanotechnology coating, and we're going to pour this green-tinted water inside the middle, and you're going to see, it's going to spread out on glass like you'd normally think it would, except when it hits the coating, it stops, and I can't even coax it to leave. It's that afraid of the water.
Prelazimo na sljedeću demonstraciju, gdje smo uzeli komad stakla i prevukli vanjski dio, uokvirili smo komad sa nanoprevlakom, i izliti ćemo ovu zelenu tekućinu u sredinu, i vidjet ćete kako se širi po površini stakla, na način kako bi i očekivali, sve dok ne dođe do prevlake - gdje staje, a niti ja ju ne mogu nagovoriti da krene dalje. Toliko se boji vode.
(Applause)
(pljesak)
So what's going on here? What's happening? Well, the surface of the spray coating is actually filled with nanoparticles that form a very rough and craggly surface. You'd think it'd be smooth, but it's actually not. And it has billions of interstitial spaces, and those spaces, along with the nanoparticles, reach up and grab the air molecules, and cover the surface with air. It's an umbrella of air all across it, and that layer of air is what the water hits, the mud hits, the concrete hits, and it glides right off. So if I put this inside this water here, you can see a silver reflective coating around it, and that silver reflective coating is the layer of air that's protecting the water from touching the paddle, and it's dry.
Pa što se onda tu događa? O čemu je riječ? Pa površina prevlake je zapravo ispunjena nanočesticama koje zajedno sačinjavaju vrlo hrapavu i neravnu površinu. Pomislili biste da je glatka, no zapravo nije. I ima na milijune intersticijskih praznina, i te praznine, zajedno sa nanočesticama posežu prema gore i hvataju molekule zraka, te prekrivaju površinu zrakom. To je poput kišobrana od zraka raširenog preko cijele površine i taj sloj zraka je ono što voda dodiruje, što blato dodiruje, što beton dodiruje, i sve to jednostavno otkliže sa površine. Stoga ako stavim ovo veslo ovdje u vodu, možete vidjeti srebrnu reflektirajuću prevlaku oko njega, i ta srebrna reflektirajuća prevlaka je sloj zraka koji štiti veslo od vode da ga ne dodirne, te tako ostaje suho.
So what are the applications? I mean, many of you right now are probably going through your head. Everyone that sees this gets excited, and says, "Oh, I could use it for this and this and this." The applications in a general sense could be anything that's anti-wetting. We've certainly seen that today. It could be anything that's anti-icing, because if you don't have water, you don't have ice. It could be anti-corrosion. No water, no corrosion. It could be anti-bacterial. Without water, the bacteria won't survive. And it could be things that need to be self-cleaning as well.
Koje su onda moguće primjene? Mislim, većina vas vjerojatno sada razmišlja o svačemu u svojoj glavi. Svi koji vide ovo postanu uzbuđeni i kažu: "O, pa mogao bih to upotrijebiti za ovo i za ono..." Primjene u općenitom smislu mogu obuhvaćati bilo što, a da je vodootporno. Zasigurno smo to danas vidjeli. Može biti sve što mora biti otporno zaleđivanju, jer ako nemate vode, nemate niti leda. Može biti za antikorozivnu primjenu. Nema vode - nema korozije. Može biti antibakterijska primjena. Bez vode, bakterije ne mogu preživjeti. I može biti za primjenu na predmetima koji se sami trebaju čistiti.
So imagine how something like this could help revolutionize your field of work. And I'm going to leave you with one last demonstration, but before I do that, I would like to say thank you, and think small. (Applause) It's going to happen. Wait for it. Wait for it.
Stoga zamislite kako bi nešto poput ovoga moglo revolucionirati vaše područje rada. I napustiti ću vas sa jednom posljednjom demonstracijom, ali prije nego što to učinim, želio bih vam reći: "Hvala i razmišljajte od najmanjeg!" (pljesak) Desit će se... čekajte... čekajte...
Chris Anderson: You guys didn't hear about us cutting out the Design from TED? (Laughter)
Niste čuli za smo izbacili D iz "TED"?
[Two minutes later...]
(dvije minute kasnije...)
He ran into all sorts of problems in terms of managing the medical research part. It's happening! (Applause)
...naletio je na razne probleme pri vođenju medicinskih istraživanja. Događa se! (pljesak)