Mark Shaw: One very dry demo

236,896 views ・ 2013-03-26

TED


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00:00
Translator: Joseph Geni Reviewer: Thu-Huong Ha
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Prevoditelj: Marin Stojic Recezent: Sonja Rodić
00:12
I'm here to show you
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Ovdje sam da vam pokažem
00:14
how something you can't see can be so much fun to look at.
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kako nešto što ne vidite može biti veoma zanimlljivo za promatrati.
00:18
You're about to experience a new, available
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Svjedočit ćete novoj, dostupnoj i
00:22
and exciting technology that's going to make us rethink
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uzbudljivoj tehnologiji koja će nas natjerati da ponovno promislimo
00:25
how we waterproof our lives.
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na koji način stvari u našim životima činimo vodootpornima.
00:27
What I have here is a cinder block
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Ovdje imam jedan betonski blok
00:30
that we've coated half with a nanotechnology spray
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kojemu smo jednu polovicu prevukli sa nanoprevlakom
00:32
that can be applied to almost any material.
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koja je primjenjiva na bilo koji materijal.
00:35
It's called Ultra-Ever Dry,
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Prevlaka se zove "Ultra-Ever Dry",
00:37
and when you apply it to any material,
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a kada ju nanesete na bilo koji materijal,
00:39
it turns into a superhydrophobic shield.
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pretvara se u superhidrofobni zaštitni sloj.
00:42
So this is a cinder block, uncoated,
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Dakle ovo je betonski blok, neprevučen,
00:45
and you can see that it's porous, it absorbs water.
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i vidite da je porozan, upija vodu.
00:49
Not anymore.
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Više ne.
00:52
Porous, nonporous.
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Porozan, neporozan.
00:56
So what's superhydrophobic?
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Što onda znači ako je nešto superhidrofobno?
00:59
Superhydrophobic is how we measure
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Superhidrofobno je prema tome kako mjerimo
01:01
a drop of water on a surface.
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kapljicu vode na toj površini.
01:04
The rounder it is, the more hydrophobic it is,
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Što je kapljica okruglija, površina je više hidrofobna,
01:06
and if it's really round, it's superhydrophobic.
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a ako je kapljica izrazito okrugla, onda je površina superhidrofobna.
01:09
A freshly waxed car, the water molecules slump
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Svježe ulašten auto - na njemu molekule vode padaju
01:12
to about 90 degrees.
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na otprilike 90 stupnjeva.
01:15
A windshield coating is going to give you about 110 degrees.
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Prevlaka vjetrobranskog stakla daje otprilike 110 stupnjeva.
01:18
But what you're seeing here is 160 to 175 degrees,
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Ali ovo što ovdje vidite je između 160 i 175 stupnjeva,
01:21
and anything over 150 is superhydrophobic.
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a sve što je iznad 150 stupnjeva je superhidrofobno.
01:25
So as part of the demonstration,
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Stoga kao dio demonstracije
01:27
what I have is a pair of gloves,
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imam ovdje jedan par rukavica,
01:29
and we've coated one of the gloves
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i prevukli smo jednu od rukavica
01:31
with the nanotechnology coating,
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sa nanoprevlakom,
01:34
and let's see if you can tell which one,
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pa hajdemo vidjeti možete li prepoznati koju,
01:36
and I'll give you a hint.
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a ja ću vam dati natuknicu.
01:43
Did you guess the one that was dry?
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Jeste li pogodili da je to ova koja je suha?
01:47
When you have nanotechnology and nanoscience,
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Kada imate nanotehnologiju,
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what's occurred is that we're able to now
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ono što se događa je da smo sada u mogućnosti
01:55
look at atoms and molecules and actually control them
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promatrati atome i molekule, te zapravo upravljati njima
01:57
for great benefits.
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u svrhu postizanja korisnih primjena.
02:00
And we're talking really small here.
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I ovdje zbilja govorimo o malim dimenzijama.
02:02
The way you measure nanotechnology is in nanometers,
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Nanotehnologiju mjerite u nanometrima,
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and one nanometer is a billionth of a meter,
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a jedan nanometar je milijarditi dio metra,
02:08
and to put some scale to that,
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a kako bi to stavili u nekakvu perspektivu,
02:09
if you had a nanoparticle that was one nanometer thick,
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zamislite da imate jednu nanočesticu koja je široka 1 nanometar,
02:13
and you put it side by side, and you had 50,000 of them,
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i ako slažete takve čestice jednu do druge, i tako složite 50,000 njih,
02:16
you'd be the width of a human hair.
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dostići ćete širinu ljudske vlasi.
02:18
So very small, but very useful.
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Tako da je to vrlo sitno, ali vrlo korisno.
02:21
And it's not just water that this works with.
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I voda nije jedino sredstvo na koje ovo djeluje.
02:24
It's a lot of water-based materials like concrete,
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Djeluje i na puno materijala baziranih na vodi, poput betona,
02:27
water-based paint,
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boja na bazi vode,
02:29
mud,
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blata,
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and also some refined oils as well.
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ili nekih naftnih derivata.
02:39
You can see the difference.
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Možete vidjeti razliku.
02:43
Moving onto the next demonstration,
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Prelazimo na sljedeću demonstraciju,
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we've taken a pane of glass and we've coated the outside of it,
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gdje smo uzeli komad stakla i prevukli vanjski dio,
02:47
we've framed it with the nanotechnology coating,
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uokvirili smo komad sa nanoprevlakom,
02:50
and we're going to pour this green-tinted water inside the middle,
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i izliti ćemo ovu zelenu tekućinu u sredinu,
02:54
and you're going to see, it's going to spread out on glass
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i vidjet ćete kako se širi po površini stakla,
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like you'd normally think it would,
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na način kako bi i očekivali,
02:57
except when it hits the coating, it stops,
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sve dok ne dođe do prevlake - gdje staje,
03:01
and I can't even coax it to leave.
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a niti ja ju ne mogu nagovoriti da krene dalje.
03:05
It's that afraid of the water.
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Toliko se boji vode.
03:06
(Applause)
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(pljesak)
03:10
So what's going on here? What's happening?
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Pa što se onda tu događa? O čemu je riječ?
03:12
Well, the surface of the spray coating
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Pa površina prevlake
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is actually filled with nanoparticles
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je zapravo ispunjena nanočesticama
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that form a very rough and craggly surface.
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koje zajedno sačinjavaju vrlo hrapavu i neravnu površinu.
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You'd think it'd be smooth, but it's actually not.
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Pomislili biste da je glatka, no zapravo nije.
03:22
And it has billions of interstitial spaces,
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I ima na milijune intersticijskih praznina,
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and those spaces, along with the nanoparticles,
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i te praznine, zajedno sa nanočesticama
03:27
reach up and grab the air molecules,
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posežu prema gore i hvataju molekule zraka,
03:30
and cover the surface with air.
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te prekrivaju površinu zrakom.
03:32
It's an umbrella of air all across it,
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To je poput kišobrana od zraka raširenog preko cijele površine
03:35
and that layer of air is what the water hits,
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i taj sloj zraka je ono što voda dodiruje,
03:37
the mud hits, the concrete hits, and it glides right off.
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što blato dodiruje, što beton dodiruje, i sve to jednostavno otkliže sa površine.
03:40
So if I put this inside this water here,
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Stoga ako stavim ovo veslo ovdje u vodu,
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you can see a silver reflective coating around it,
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možete vidjeti srebrnu reflektirajuću prevlaku oko njega,
03:46
and that silver reflective coating
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i ta srebrna reflektirajuća prevlaka
03:48
is the layer of air that's protecting the water
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je sloj zraka koji štiti veslo od vode
03:50
from touching the paddle, and it's dry.
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da ga ne dodirne, te tako ostaje suho.
03:57
So what are the applications?
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Koje su onda moguće primjene?
03:59
I mean, many of you right now are probably going through your head.
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Mislim, većina vas vjerojatno sada razmišlja o svačemu u svojoj glavi.
04:02
Everyone that sees this gets excited, and says,
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Svi koji vide ovo postanu uzbuđeni i kažu:
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"Oh, I could use it for this and this and this."
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"O, pa mogao bih to upotrijebiti za ovo i za ono..."
04:05
The applications in a general sense
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Primjene u općenitom smislu
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could be anything that's anti-wetting.
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mogu obuhvaćati bilo što, a da je vodootporno.
04:10
We've certainly seen that today.
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Zasigurno smo to danas vidjeli.
04:12
It could be anything that's anti-icing,
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Može biti sve što mora biti otporno zaleđivanju,
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because if you don't have water, you don't have ice.
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jer ako nemate vode, nemate niti leda.
04:18
It could be anti-corrosion.
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Može biti za antikorozivnu primjenu.
04:21
No water, no corrosion.
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Nema vode - nema korozije.
04:23
It could be anti-bacterial.
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Može biti antibakterijska primjena.
04:25
Without water, the bacteria won't survive.
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Bez vode, bakterije ne mogu preživjeti.
04:28
And it could be things that need to be self-cleaning as well.
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I može biti za primjenu na predmetima koji se sami trebaju čistiti.
04:33
So imagine how something like this
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Stoga zamislite kako bi nešto poput ovoga
04:37
could help revolutionize your field of work.
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moglo revolucionirati vaše područje rada.
04:41
And I'm going to leave you with one last demonstration,
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I napustiti ću vas sa jednom posljednjom demonstracijom,
04:44
but before I do that, I would like to say thank you,
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ali prije nego što to učinim, želio bih vam reći: "Hvala i
04:46
and think small.
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razmišljajte od najmanjeg!"
04:57
(Applause)
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(pljesak)
05:04
It's going to happen. Wait for it. Wait for it.
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Desit će se... čekajte... čekajte...
05:09
Chris Anderson: You guys didn't hear about us cutting out the Design from TED? (Laughter)
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Niste čuli za smo izbacili D iz "TED"?
05:13
[Two minutes later...]
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(dvije minute kasnije...)
05:15
He ran into all sorts of problems in terms of managing the medical research part.
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...naletio je na razne probleme pri vođenju medicinskih istraživanja.
05:18
It's happening!
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Događa se!
05:20
(Applause)
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(pljesak)

Original video on YouTube.com
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