The math and magic of origami | Robert Lang

761,824 views ・ 2008-07-31

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Prevoditelj: Stjepan Mateljan Recezent: Ivan Stamenković
00:18
My talk is "Flapping Birds and Space Telescopes."
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Moj je govor "Lepršave ptice i Svemirski teleskopi."
00:21
And you would think that should have nothing to do with one another,
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Iako bi mislili da to ne nema nikakve veze jedno s drugim,
00:23
but I hope by the end of these 18 minutes,
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ali nadam se da ćete do isteka ovih 18 minuta,
00:26
you'll see a little bit of a relation.
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vidjeti ipak barem neku malenu poveznicu.
00:29
It ties to origami. So let me start.
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Veže se na origami. Krenimo
00:30
What is origami?
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Što je origami?
00:32
Most people think they know what origami is. It's this:
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Većina ljudi misli da zna što je origami. To je ovo:
00:35
flapping birds, toys, cootie catchers, that sort of thing.
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Lepršave ptice, igračke, gatalice, ta vrsta stvari.
00:38
And that is what origami used to be.
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A to je ono što je origami bio.
00:40
But it's become something else.
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Ali postao je nešto drugo.
00:42
It's become an art form, a form of sculpture.
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Postao je oblik umjetnosti, oblik skulpture.
00:44
The common theme -- what makes it origami --
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Uobičajena tema -- ono što ga čini origamijem --
00:46
is folding is how we create the form.
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je savijanje kao način stvaranja oblika.
00:50
You know, it's very old. This is a plate from 1797.
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Vrlo je star. Ovo je panel iz 1797.
00:53
It shows these women playing with these toys.
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Pokazuje ove žene kako se igraju s igračkama.
00:55
If you look close, it's this shape, called a crane.
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Ako pobliže osmotrite, to je ovaj oblik, zvan ždral.
00:58
Every Japanese kid
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Svaki japanski klinac
01:00
learns how to fold that crane.
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uči kako saviti ždrala.
01:02
So this art has been around for hundreds of years,
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Ova je vještina bila prisutna stotine godina,
01:04
and you would think something
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pa bi pomislili da nešto
01:06
that's been around that long -- so restrictive, folding only --
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što je toliko dugo prisutno -- tako ograničavajuće, samo savijanje --
01:09
everything that could be done has been done a long time ago.
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sve što je moglo biti učinjeno je učinjeno prije puno vremena.
01:12
And that might have been the case.
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I to je možda i bio slučaj.
01:14
But in the twentieth century,
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Ali u dvadesetom stoljeću,
01:16
a Japanese folder named Yoshizawa came along,
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japanski savijač imenom Yoshizawa je našao
01:19
and he created tens of thousands of new designs.
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i stvorio desetke tisuća novih dizajnova.
01:22
But even more importantly, he created a language,
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Ali čak još i važnije, stvorio je jezik,
01:25
a way we could communicate,
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način na koji možemo komunicirati,
01:27
a code of dots, dashes and arrows.
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kod točkica, crtica i strelica.
01:29
Harkening back to Susan Blackmore's talk,
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Oslanjajući se na govor Susan Blackmore,
01:31
we now have a means of transmitting information
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sad imamo način odašiljanja informacije
01:33
with heredity and selection,
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sa naslijeđivanjem i izabiranjem,
01:36
and we know where that leads.
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a znamo gdje to vodi.
01:38
And where it has led in origami
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A gdje je odvelo u origamiju
01:40
is to things like this.
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su stvari poput ovih.
01:42
This is an origami figure --
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Ovo je origami figura --
01:44
one sheet, no cuts, folding only, hundreds of folds.
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jedna ploha, bez rezova, samo savijanje, stotine preklopa
01:50
This, too, is origami,
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To je, isto, origami,
01:52
and this shows where we've gone in the modern world.
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a ovo pokazuje gdje smo otišli u modernom svijetu.
01:55
Naturalism. Detail.
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Naturalizam. Pojedinosti.
01:57
You can get horns, antlers --
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Možete dobti rogove, roščiće --
01:59
even, if you look close, cloven hooves.
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čak, ako gledate pomno, razdijeljena kopita
02:01
And it raises a question: what changed?
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To potiče pitanje: što se promijenilo?
02:04
And what changed is something
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A to što se promijenilo je nešto
02:06
you might not have expected in an art,
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što možda ne bi očekivali u umjetosti,
02:09
which is math.
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a to je matematika.
02:11
That is, people applied mathematical principles
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To jest, ljudi su primijenili matematičke principe
02:13
to the art,
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na umjetnost,
02:16
to discover the underlying laws.
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da otkriju ishodišne zakone.
02:18
And that leads to a very powerful tool.
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A to vodi do jako moćnog alata.
02:21
The secret to productivity in so many fields --
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Tajna proizvodnosti u tako puno polja --
02:23
and in origami --
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i u origamiju --
02:25
is letting dead people do your work for you.
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je prepuštanje mrtvim ljudima da za vas odrade vaš posao.
02:28
(Laughter)
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(Smijeh)
02:29
Because what you can do is
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Jer ono što možete napraviti je
02:31
take your problem,
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uzeti vlastiti problem,
02:33
and turn it into a problem that someone else has solved,
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i pretvoriti ga u problem koji je netko drugi već riješio,
02:36
and use their solutions.
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te iskoristiti njihova rješenje.
02:38
And I want to tell you how we did that in origami.
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A ja vam želim reći kako smo to učinili u origamiju.
02:41
Origami revolves around crease patterns.
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Origami se vrti oko uzoraka savijanja.
02:43
The crease pattern shown here is the underlying blueprint
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Uzorak savijanja prikazan ovdje je ishodišni nacrt
02:46
for an origami figure.
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za origami figuru.
02:48
And you can't just draw them arbitrarily.
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I ne možete ih samo crtati proizvoljno.
02:50
They have to obey four simple laws.
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Moraju ispunjavati četiri jednostavna zakona.
02:53
And they're very simple, easy to understand.
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A ono su vrlo jednostavni, lagani za razumjeti.
02:55
The first law is two-colorability. You can color any crease pattern
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Prvi je zakon dvobojnost. Možete pobojati bilo koji uzorak savijanja
02:58
with just two colors without ever having
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sa samo dvije boje bez da se ikada
03:00
the same color meeting.
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ista boja dodiruje.
03:03
The directions of the folds at any vertex --
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Smjer preklopa na bilo kojem vrhu --
03:06
the number of mountain folds, the number of valley folds --
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broj izbočenih nabora, broj udubljenih nabora --
03:09
always differs by two. Two more or two less.
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uvijek se razlikuje za dva. Dva više ili dva manje.
03:11
Nothing else.
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Ništa drugo.
03:13
If you look at the angles around the fold,
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Ako gledate kuteve oko preklopa,
03:15
you find that if you number the angles in a circle,
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nalazite da ako numerirate kuteve u krug,
03:17
all the even-numbered angles add up to a straight line,
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svi parni kutevi zbrojeni daju ravnu liniju,
03:20
all the odd-numbered angles add up to a straight line.
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svi neparni kutevi zbrojeni daju ravnu liniju.
03:23
And if you look at how the layers stack,
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A ako gledate kako se slojevi slažu,
03:25
you'll find that no matter how you stack folds and sheets,
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otkrit ćete da bez obzira kako slažete preklope i listove,
03:28
a sheet can never
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list nikad ne može
03:30
penetrate a fold.
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prodrijeti u preklop.
03:32
So that's four simple laws. That's all you need in origami.
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To su četiri jednostavna zakona. To je sve što trebate u origamiju.
03:35
All of origami comes from that.
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Sav origami dolazi iz toga.
03:37
And you'd think, "Can four simple laws
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I pomislili bi: "Mogu li četiri jednostavna zakona
03:39
give rise to that kind of complexity?"
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dopustiti nastanak ovolike složenosti?"
03:41
But indeed, the laws of quantum mechanics
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Ali zbilja, zakoni kvantne mehanike
03:43
can be written down on a napkin,
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mogu biti zapisani na ubrus,
03:45
and yet they govern all of chemistry,
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pa ipak upravljaju svom kemijom,
03:47
all of life, all of history.
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svim životom, svom poviješću.
03:49
If we obey these laws,
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Ako se držimo tih zakona,
03:51
we can do amazing things.
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Možemo činiti zapanjujuće stvari.
03:53
So in origami, to obey these laws,
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U origamiju, da bismo se držali tih zakona,
03:55
we can take simple patterns --
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možemo uzeti jednostavne uzorke --
03:57
like this repeating pattern of folds, called textures --
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poput ovih ponavljajućih uzoraka savijanja, zvanih teksture --
04:00
and by itself it's nothing.
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sam po sebi nije ništa.
04:02
But if we follow the laws of origami,
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Ali ako slijedimo zakone origamija,
04:04
we can put these patterns into another fold
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možemo staviti ove uzorke u druge
04:07
that itself might be something very, very simple,
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koji po sebi mogu biti nešto jako jako jednostavno,
04:09
but when we put it together,
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ali kad ih stavimo zajedno,
04:11
we get something a little different.
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dobijemo nešto malo različito.
04:13
This fish, 400 scales --
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ova riba, 400 krljušti --
04:16
again, it is one uncut square, only folding.
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ponavljam, to je jedan nerazrezani kvadrat, samo savijanje.
04:20
And if you don't want to fold 400 scales,
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A ako ne želite savijati 400 krljušti,
04:22
you can back off and just do a few things,
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možete odstupiti i samo učiniti nekoliko stvari,
04:24
and add plates to the back of a turtle, or toes.
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te dodati ploče na leđa kornjače, ili prste.
04:27
Or you can ramp up and go up to 50 stars
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Ili možete pojačati i otići do 50 zvijezda
04:30
on a flag, with 13 stripes.
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na zastavi, sa 13 pruga
04:33
And if you want to go really crazy,
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A ako želite posve poludjeti,
04:36
1,000 scales on a rattlesnake.
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1000 ljusaka na čegrtuši.
04:38
And this guy's on display downstairs,
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A ovaj je momak izložen tu vani nešto niže,
04:40
so take a look if you get a chance.
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pa bacite oko ako ulovite priliku.
04:43
The most powerful tools in origami
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Najmoćniji alati u origamiju
04:45
have related to how we get parts of creatures.
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su se bavili kako da dobijemo dijelove stvorenja.
04:48
And I can put it in this simple equation.
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A mogu ih staviti u ovu jednostavnu jednadžbu.
04:50
We take an idea,
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Uzmemo ideju,
04:52
combine it with a square, and you get an origami figure.
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kobiniramo je sa kvadratom, i dobijete origami figuru.
04:55
(Laughter)
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(Smijeh)
04:59
What matters is what we mean by those symbols.
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Ono što je bitno je što mislimo sa tim simbolima.
05:01
And you might say, "Can you really be that specific?
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I možete reći: "Može li se zbilja biti toliko određen?
05:04
I mean, a stag beetle -- it's got two points for jaws,
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mislim, jelenak - ima dva roga kao vilice,
05:06
it's got antennae. Can you be that specific in the detail?"
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ima antene. Može li se biti toliko određen u detaljima?"
05:10
And yeah, you really can.
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I da, zbilja se može.
05:13
So how do we do that? Well, we break it down
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Pa kako to činimo? Dakle, razbijamo izradu
05:16
into a few smaller steps.
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u par manjih koraka.
05:18
So let me stretch out that equation.
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Neka proširim malo tu jednadžbu.
05:20
I start with my idea. I abstract it.
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Krećem sa idejom. Apstrahiram ju.
05:23
What's the most abstract form? It's a stick figure.
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Koji je najapstraktniji oblik? Štapićasti lik.
05:26
And from that stick figure, I somehow have to get to a folded shape
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A od tog štapićastog lika, nekako moram doći do savijenog oblika
05:29
that has a part for every bit of the subject,
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koji ima dio za svaki komad teme,
05:32
a flap for every leg.
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krilce za svaku nogu.
05:34
And then once I have that folded shape that we call the base,
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a onda jednom kad imam savijen oblik koji zovemo baza,
05:37
you can make the legs narrower, you can bend them,
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možete napraviti noge užima, možete ih savijati,
05:40
you can turn it into the finished shape.
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možete ih pretvoriti u završni oblik.
05:42
Now the first step, pretty easy.
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Sad prvi korak, jako je jednostavan.
05:44
Take an idea, draw a stick figure.
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uzmi ideju, nacrtaj štapićast lik.
05:46
The last step is not so hard, but that middle step --
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Zadnji korak nije tako težak, ali taj srednji korak --
05:49
going from the abstract description to the folded shape --
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dolazak od apstraktnog opisa do savijenog oblika --
05:52
that's hard.
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to jest teško.
05:54
But that's the place where the mathematical ideas
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Ali to je mjesto gdje nas matematičke ideje
05:56
can get us over the hump.
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mogu prevesti preko grbe.
05:58
And I'm going to show you all how to do that
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A pokazat ću vam svima kako to napraviti
06:00
so you can go out of here and fold something.
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tako da možete otići odavde i savinuti štogod.
06:02
But we're going to start small.
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Ali počet ćemo sa malim.
06:04
This base has a lot of flaps in it.
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Ova baza ima puno krilaca
06:06
We're going to learn how to make one flap.
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Naučit ćemo kako napraviti jedno krilce.
06:09
How would you make a single flap?
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Kako biste napravili jedno krilce?
06:11
Take a square. Fold it in half, fold it in half, fold it again,
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Uzmite kvadrat. Presavinite ga na pola, ponovno, presavinite ga opet,
06:14
until it gets long and narrow,
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sve dok ne postane dug i uzak,
06:16
and then we'll say at the end of that, that's a flap.
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i onda ćemo na kraju toga reći: 'to je krilce'.
06:18
I could use that for a leg, an arm, anything like that.
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Mogu to koristiti za nogu, ruku, bilo što nalik tome.
06:21
What paper went into that flap?
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Koji je papir ušao u to krilce?
06:23
Well, if I unfold it and go back to the crease pattern,
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Pa, ako ga odmotam i vratim se na uzorak savijanja,
06:25
you can see that the upper left corner of that shape
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možete vidjeti da je gornji lijevi kut tog oblika
06:28
is the paper that went into the flap.
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onaj papir koji je ušao u krilce.
06:30
So that's the flap, and all the rest of the paper's left over.
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Dakle to je krilce, a sav je preostali papir višak.
06:33
I can use it for something else.
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Mogu ga koristiti za nešto drugo.
06:35
Well, there are other ways of making a flap.
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Ima i drugih načina da se napravi krilce.
06:37
There are other dimensions for flaps.
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Ima drugih dimenzija krilca.
06:39
If I make the flaps skinnier, I can use a bit less paper.
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ako učinim krilce tanjim, mogu koristiti nešto manje papira.
06:42
If I make the flap as skinny as possible,
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Ako učinim krilce onoliko tankim koliko je uopće moguće,
06:45
I get to the limit of the minimum amount of paper needed.
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dolazim do granice minimalne količine potrebnog papira.
06:48
And you can see there, it needs a quarter-circle of paper to make a flap.
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a možete vidjeti ovjde, potrebno je četvrt kruga papira da se napravi krilce.
06:52
There's other ways of making flaps.
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Postoje i drugi načini izrade krilaca.
06:54
If I put the flap on the edge, it uses a half circle of paper.
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Ako stavim krilce na rub, koristiti će pola kruga papira.
06:57
And if I make the flap from the middle, it uses a full circle.
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a ako ga napravim u sredini, koristiti će puni krug.
07:00
So, no matter how I make a flap,
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Dakle, bez obzira kako napravim krilce,
07:02
it needs some part
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traži neki dio
07:04
of a circular region of paper.
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kružne regije papira.
07:06
So now we're ready to scale up.
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dakle sad smo spremni na uvećanje.
07:08
What if I want to make something that has a lot of flaps?
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Što ako želim nešto što ima puno krilaca?
07:11
What do I need? I need a lot of circles.
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Što trebam? Trebam puno krugova.
07:15
And in the 1990s,
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A u 90-ima,
07:17
origami artists discovered these principles
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umjetnici origamija otkrili su te principe
07:19
and realized we could make arbitrarily complicated figures
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i shvatili da možemo stvarati koliko god složene figure
07:22
just by packing circles.
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samo slažući krugove.
07:25
And here's where the dead people start to help us out,
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I to je gdje su nam mrtvi ljudi počeli pomagati,
07:28
because lots of people have studied
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Jer puno je ljudi proučavalo
07:31
the problem of packing circles.
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problem slaganja krugova.
07:33
I can rely on that vast history of mathematicians and artists
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Mogu se osloniti na veliku povijest matematičara i umjetnika
07:36
looking at disc packings and arrangements.
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koji su se bavili slaganjem diskova i razmještajem.
07:39
And I can use those patterns now to create origami shapes.
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A ja sad mogu koristiti te oblike kako bih složio oblike u origamiju.
07:43
So we figured out these rules whereby you pack circles,
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Tako smo otkrili ta pravila pomoću kojih slažete krugove,
07:45
you decorate the patterns of circles with lines
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ukrašavate uzorke krugova pomoću linija
07:48
according to more rules. That gives you the folds.
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u skladu sa još pravila. To vam daje presavijanja.
07:50
Those folds fold into a base. You shape the base.
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Ta presavijanja se savijaju u baze. Vi oblikujete bazu.
07:53
You get a folded shape -- in this case, a cockroach.
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Dobijate savijeni oblik -- u ovom slučaju, žohara.
07:57
And it's so simple.
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I to je tako jednostavno.
07:59
(Laughter)
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(Smijeh)
08:02
It's so simple that a computer could do it.
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To je tako jednostavno da to može i računalo.
08:05
And you say, "Well, you know, how simple is that?"
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Te kažete: "Pa, znate, koliko je to jednostavno?"
08:07
But computers -- you need to be able to describe things
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Ali računala -- morate biti u stanju opisati stvari
08:09
in very basic terms, and with this, we could.
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u posve jednostavnim pojmovima, a s tim, možemo.
08:12
So I wrote a computer program a bunch of years ago
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Pa sam napisao računalni program prije niz godina
08:14
called TreeMaker, and you can download it from my website.
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zvan TreeMaker, a koji možete skinuti s mog sajta.
08:16
It's free. It runs on all the major platforms -- even Windows.
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Besplatan je. Vrti se na svim glavnim platformama -- čak i Windowsima.
08:19
(Laughter)
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(Smijeh)
08:21
And you just draw a stick figure,
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Vi samo nacrtate štapićasti lik,
08:23
and it calculates the crease pattern.
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a on izračuna uzorak savijanja.
08:25
It does the circle packing, calculates the crease pattern,
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On slaže krugove, računa uzorak savijanja,
08:28
and if you use that stick figure that I just showed --
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a ako koristite onaj štapićasti lik koji sam vam upravo pokazao --
08:30
which you can kind of tell, it's a deer, it's got antlers --
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za koji nekako možete reći da je jelen, jer ima rogove --
08:33
you'll get this crease pattern.
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dobti ćete ovaj uzorak savijanja.
08:35
And if you take this crease pattern, you fold on the dotted lines,
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A ako uzmete taj uzorak savijanja i presavijete po istočkanim linijama,
08:37
you'll get a base that you can then shape
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dobit ćete bazu koju potom možete oblikovati
08:40
into a deer,
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u jelena,
08:42
with exactly the crease pattern that you wanted.
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sa točno onim uzorkom savijanja koji ste željeli.
08:44
And if you want a different deer,
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A ako želite različitog jelena,
08:46
not a white-tailed deer, but you want a mule deer, or an elk,
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ne bjelorepog jelena, nego želite drugu vrstu, ili losa,
08:49
you change the packing,
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promijenite slaganje,
08:51
and you can do an elk.
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i možete napraviti soba.
08:53
Or you could do a moose.
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ili možete napravili losa.
08:55
Or, really, any other kind of deer.
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Ili, zbilja, bilo koju drugu vrstu jelena.
08:57
These techniques revolutionized this art.
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Ove su tehnike preokrenule ovu umjetnost.
09:00
We found we could do insects,
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Otkrili smo da možemo raditi kukce,
09:02
spiders, which are close,
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Pauke, koji su im bliski,
09:04
things with legs, things with legs and wings,
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stvari s nogama, stvari s nogama i krilima,
09:08
things with legs and antennae.
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stvari s nogama i antenama.
09:10
And if folding a single praying mantis from a single uncut square
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A ako savijanje jedne bogomoljke iz jednog nerazrezanog kvadrata
09:13
wasn't interesting enough,
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nije dovoljno zanimljivo,
09:15
then you could do two praying mantises
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onda možete napraviti dvije bogomoljke
09:17
from a single uncut square.
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iz jednog nerazrezanog kvadrata.
09:19
She's eating him.
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Ona ga jede.
09:21
I call it "Snack Time."
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Zovem ga "vrijeme za prezalogajiti".
09:24
And you can do more than just insects.
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A možete činiti i više od samo kukaca.
09:26
This -- you can put details,
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Ovo -- možete stavljati detalje,
09:28
toes and claws. A grizzly bear has claws.
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prste i kandže. Grizli ima kandže.
09:31
This tree frog has toes.
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Ova gatalinka ima prste.
09:33
Actually, lots of people in origami now put toes into their models.
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Zapravo, puno ljudi u origamiju sad stavlja prste na svoje modele.
09:36
Toes have become an origami meme,
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Prsti su postali meme u origamiju,
09:38
because everyone's doing it.
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jer svi ih rade.
09:41
You can make multiple subjects.
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Možete uzeti višestruke teme.
09:43
So these are a couple of instrumentalists.
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Tako je ovo par instrumentalaca.
09:45
The guitar player from a single square,
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Svirač gitare iz jednog kvadrata.
09:48
the bass player from a single square.
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Svirač basa iz jednog kvadrata.
09:50
And if you say, "Well, but the guitar, bass --
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A ako kažete: "Dobro, ali gitara, bas --
09:52
that's not so hot.
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to nije takva špica.
09:54
Do a little more complicated instrument."
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Napravite malo složeniji instrument."
09:56
Well, then you could do an organ.
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U redu, onda možete složiti orgulje.
09:58
(Laughter)
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(Smijeh)
10:01
And what this has allowed is the creation
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A to je omogućilo stvaranje
10:03
of origami-on-demand.
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origamija po narudžbi.
10:05
So now people can say, "I want exactly this and this and this,"
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Tako da sad ljudi mogu reći: "Želim točno to i to i to,"
10:08
and you can go out and fold it.
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a vi možete otići i saviti im što žele.
10:11
And sometimes you create high art,
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Ponekad stvarate visoku umjetnost,
10:13
and sometimes you pay the bills by doing some commercial work.
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a ponekad plačate račune odrađujući nešto komercijalno.
10:16
But I want to show you some examples.
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Ali želim vam pokazati neke primjere.
10:18
Everything you'll see here,
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Sve što ćete vidjeti ovdje,
10:20
except the car, is origami.
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osim auta, je origami.
10:23
(Video)
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(Video)
10:51
(Applause)
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(Pljesak)
10:54
Just to show you, this really was folded paper.
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Samo da vam pokažem, ovo je zbijla bio savijeni papir.
10:57
Computers made things move,
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Računala su napravila da se stvari kreću,
10:59
but these were all real, folded objects that we made.
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Ali to su sve bili pravi, savijeni predmeti koje smo napravili.
11:03
And we can use this not just for visuals,
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I ne moramo ih koristiti samo za vizualne efekte,
11:06
but it turns out to be useful even in the real world.
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nego ispada da su korisni i u stvarnom svijetu.
11:09
Surprisingly, origami
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Iznenađujuće, origami
11:10
and the structures that we've developed in origami
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i strukture koje smo razvili u origamiju
11:13
turn out to have applications in medicine, in science,
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imaju primjene u medicini, znanosti,
11:16
in space, in the body, consumer electronics and more.
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u svemiru, tijelu, potrošačkoj elektronici i drugdje.
11:19
And I want to show you some of these examples.
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I želim vam pokazati neke od tih primjera.
11:22
One of the earliest was this pattern,
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Jedan od najranijih je bio ovaj uzorak,
11:24
this folded pattern,
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ovaj savijeni uzorak,
11:26
studied by Koryo Miura, a Japanese engineer.
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koji je proučavao Koryo Miura, japanski inženjer.
11:29
He studied a folding pattern, and realized
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Proučavao je ovaj uzorak presavijanja, i shvatio
11:31
this could fold down into an extremely compact package
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da bi se dalo ispresavijati u krajnje kompaktno pakiranje
11:34
that had a very simple opening and closing structure.
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koje bi imalo vrlo jednostavnu strukturu otvarajna i zatvaranja.
11:37
And he used it to design this solar array.
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I iskoristio ju je da osmisli ovu solarnu ploču.
11:40
It's an artist's rendition, but it flew in a Japanese telescope
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Ovo je umjetnički prikaz, ali poletjela je na japanskom teleskopu
11:43
in 1995.
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1995.
11:45
Now, there is actually a little origami
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Sad, ima zapravo nešto malo origamija
11:47
in the James Webb Space Telescope, but it's very simple.
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i u svemirskom teleskopu James Webb, ali je vrlo jednostavan.
11:50
The telescope, going up in space,
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Teleskop, odlazeći u svemir,
11:52
it unfolds in two places.
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odmotava se na dva mjesta,
11:55
It folds in thirds. It's a very simple pattern --
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Zamata se u trećinama. To je vrlo jednostavan uzorak --
11:57
you wouldn't even call that origami.
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ne biste ga čak niti nazvali origami.
11:59
They certainly didn't need to talk to origami artists.
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Sigurno da nisu trebali pričati sa umjetnicima origamija.
12:02
But if you want to go higher and go larger than this,
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Ali ako želite ići više i graditi veće od tog,
12:05
then you might need some origami.
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onda bi vam moglo zatrebati nešto origamija.
12:07
Engineers at Lawrence Livermore National Lab
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Inženjeri u nacionalnom laboratoriju Lawrence Livermore
12:09
had an idea for a telescope much larger.
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su imali ideju puno većem teleskopu.
12:12
They called it the Eyeglass.
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Zvali su ga Okular.
12:14
The design called for geosynchronous orbit
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Dizajn je bio predviđen za geosinkronu orbitu
12:16
25,000 miles up,
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na 25.000 milja,
12:18
100-meter diameter lens.
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s lećom promjera 100 metara.
12:21
So, imagine a lens the size of a football field.
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Dakle zamislite leću veličine nogometnog igrališta.
12:24
There were two groups of people who were interested in this:
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Bile su dvije grupe ljudi koje su bile zainteresirane za ovo:
12:26
planetary scientists, who want to look up,
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planetarni znanstvenici, koji su htjeli gledati gore,
12:29
and then other people, who wanted to look down.
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i onda neki drugi ljudi, koji su htjeli gledati dolje.
12:33
Whether you look up or look down,
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Gledali vi gore ili dolje,
12:35
how do you get it up in space? You've got to get it up there in a rocket.
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kako ćete to podići u svemir? Morate doći tamo sa raketom.
12:38
And rockets are small. So you have to make it smaller.
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A rakete su malene. Tako da to trebate učiniti još manjim.
12:41
How do you make a large sheet of glass smaller?
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Kako učiniti veliku plohu stakla manjom?
12:43
Well, about the only way is to fold it up somehow.
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Pa, jedini je način da se nekako smota.
12:46
So you have to do something like this.
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Tako da morate napraviti nešto ovakvo.
12:48
This was a small model.
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Ovo je bio maleni model.
12:51
Folded lens, you divide up the panels, you add flexures.
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Savijena leća, podijelite ploče, dodate krivine
12:53
But this pattern's not going to work
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Ali ovaj uzorak neće dostajati
12:56
to get something 100 meters down to a few meters.
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da smanjite nešto od 100 metara na samo nekoliko metara.
12:59
So the Livermore engineers,
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Pa su inženjeri iz Livermora,
13:01
wanting to make use of the work of dead people,
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želeći iskoristiti rad mrtvih ljudi,
13:03
or perhaps live origamists, said,
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ili možda živih origamista, rekli:
13:06
"Let's see if someone else is doing this sort of thing."
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"Ajde da vidimo radi li netko drugi ovu vrstu stvari."
13:09
So they looked into the origami community,
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Pa su pogledali u origami zajednicu,
13:12
we got in touch with them, and I started working with them.
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stupili smo u kontakt, te sam počeo raditi s njima.
13:14
And we developed a pattern together
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Pa smo zajedno razvili uzorak
13:16
that scales to arbitrarily large size,
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koji se smanjuje na proizvoljnu veličinu,
13:18
but that allows any flat ring or disc
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ali koji dopušta bilo koji plosnati prsten ili disk
13:22
to fold down into a very neat, compact cylinder.
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da se savine u vrlo uredan, kompaktni cilindar.
13:25
And they adopted that for their first generation,
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Usvojili su to za svoju prvu generaciju,
13:27
which was not 100 meters -- it was a five-meter.
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koja nije bila 100 metara -- bila je 5 metara.
13:29
But this is a five-meter telescope --
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ali to je 5-metarski teleskop --
13:31
has about a quarter-mile focal length.
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s fokalnom duljinom od oko četvrt milje.
13:33
And it works perfectly on its test range,
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I radi savršeno na svojem probnom poligonu,
13:35
and it indeed folds up into a neat little bundle.
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i zaista se sklapa u zgodan mali paket.
13:39
Now, there is other origami in space.
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Sad, postoji i drugi origami u svemiru.
13:41
Japan Aerospace [Exploration] Agency flew a solar sail,
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Japanska aeronautička i svemirska istraživačka agencija je podigla solarno jedro,
13:44
and you can see here that the sail expands out,
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i ovdje možete vidjeti kako se jedro širi,
13:47
and you can still see the fold lines.
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i ovdje još vidite linije preklopa.
13:49
The problem that's being solved here is
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Problem koji je riješen ovdje je
13:52
something that needs to be big and sheet-like at its destination,
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nešto što treba biti veliko i nalik plohi na odredištu,
13:55
but needs to be small for the journey.
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ali mora biti maleno tijekom puta.
13:57
And that works whether you're going into space,
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a to radi išli vi u svemir,
14:00
or whether you're just going into a body.
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ili u tijelo.
14:03
And this example is the latter.
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A ovo je primjer potonjeg.
14:05
This is a heart stent developed by Zhong You
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Ovo je srčani stent koji je razvio Zhong You
14:08
at Oxford University.
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sa sveučilišta u Oxfordu.
14:10
It holds open a blocked artery when it gets to its destination,
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On drži otvorenom blokiranu arteriju jednom kad dođe na svoje odredište,
14:13
but it needs to be much smaller for the trip there,
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ali mora biti puno manji za put do tamo.
14:16
through your blood vessels.
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kroz vaše krvne žile.
14:18
And this stent folds down using an origami pattern,
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A ovaj se stent previja koristeći uzorak iz origamija,
14:21
based on a model called the water bomb base.
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temeljen na modelu koj se zove baza vodene bombe.
14:25
Airbag designers also have the problem
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Dizajneri zračnih jastuka također imaju problem
14:27
of getting flat sheets
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stiskanja ravnih ploha
14:29
into a small space.
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u mali prostor.
14:32
And they want to do their design by simulation.
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Oni žele napraviti svoj dizajn simulacijom.
14:34
So they need to figure out how, in a computer,
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Pa moraju shvatiti kako, na računalu,
14:36
to flatten an airbag.
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spljoštiti zračni jastuk.
14:38
And the algorithms that we developed
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A algoritmi koje smo razvili
14:40
to do insects
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da radimo kukce
14:42
turned out to be the solution for airbags
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je ispao riješenje za zračne jastuke
14:45
to do their simulation.
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da izvrše njihovu simulaciju.
14:47
And so they can do a simulation like this.
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Tako da mogu raditi simulacije poput ove.
14:50
Those are the origami creases forming,
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Ovo se oblikuju origami nabori,
14:52
and now you can see the airbag inflate
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i sad možete vidjeti kako se zračni jastuk napuhuje
14:54
and find out, does it work?
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i promisliti, radi li?
14:57
And that leads
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A to vodi
14:59
to a really interesting idea.
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do zbilja zanimljive ideje.
15:01
You know, where did these things come from?
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Znate, otkud su ove stvari došle?
15:04
Well, the heart stent
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Pa, srčani stent
15:06
came from that little blow-up box
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dolazi iz one male kutije na napuhavanje
15:08
that you might have learned in elementary school.
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koju ste mogli naučiti u osnovnoj školi.
15:11
It's the same pattern, called the water bomb base.
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To je isti uzorak, zvan baza vodene bombe.
15:14
The airbag-flattening algorithm
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Algoritam za spljoštavanje zračnog jastuka
15:16
came from all the developments
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dolazi iz svog razvoja
15:18
of circle packing and the mathematical theory
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slaganja krugova i matematičke teorije
15:21
that was really developed
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koja je zbilja bila razvijena
15:23
just to create insects -- things with legs.
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smao da stvori kukce -- stvari s nogama.
15:27
The thing is, that this often happens
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Stvar je, da se ovo često dešava
15:29
in math and science.
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u matematici i znanosti.
15:31
When you get math involved, problems that you solve
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Kada uključite matematiku, problem koji ste riješili
15:34
for aesthetic value only,
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samo radi estetske vrijednosti,
15:36
or to create something beautiful,
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ili da stvorite nešto prekrasno,
15:38
turn around and turn out
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se vrti uokolo i ispada
15:40
to have an application in the real world.
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da ima primjenu u stvarnom svijetu.
15:43
And as weird and surprising as it may sound,
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I koliko god čudno i iznenađujuće može zvučati,
15:46
origami may someday even save a life.
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origami može jednog dana čak i spasiti život.
15:50
Thanks.
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Hvala.
15:52
(Applause)
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(Pljesak)
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