The math and magic of origami | Robert Lang

761,631 views ・ 2008-07-31

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Translator: Tadej Pesjak Reviewer: Tilen Pigac - EFZG
00:18
My talk is "Flapping Birds and Space Telescopes."
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Moj govor se imenuje "Prhutajoče ptice in vesoljski teleskopi".
00:21
And you would think that should have nothing to do with one another,
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Mislili bi, da to dvoje nima nič skupnega,
00:23
but I hope by the end of these 18 minutes,
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a upam, da boste po teh 18 minutah
00:26
you'll see a little bit of a relation.
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opazili vsaj majhno povezavo.
00:29
It ties to origami. So let me start.
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Tiče se origamija.
00:30
What is origami?
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Naj začnem. Kaj je origami?
00:32
Most people think they know what origami is. It's this:
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Večina misli, da to ve. Namreč to:
00:35
flapping birds, toys, cootie catchers, that sort of thing.
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prhutajoče ptice, razne igrače, itd.
00:38
And that is what origami used to be.
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To je origami bil včasih.
00:40
But it's become something else.
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A zdaj je postal nekaj drugega.
00:42
It's become an art form, a form of sculpture.
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Postal je umetnost, vrsta kiparjenja.
00:44
The common theme -- what makes it origami --
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Rdeča nit origamija
00:46
is folding is how we create the form.
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je zgibanje in način ustvarjanja oblike.
00:50
You know, it's very old. This is a plate from 1797.
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Zelo star je. To je plošča iz l. 1797.
00:53
It shows these women playing with these toys.
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Prikazuje ženske z igračami.
00:55
If you look close, it's this shape, called a crane.
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Opazite lahko, da imajo obliko žerjava.
00:58
Every Japanese kid
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Vsak japonski otrok
01:00
learns how to fold that crane.
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se nauči zgibanja tega žerjava.
01:02
So this art has been around for hundreds of years,
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Ta umetnost obstaja že več sto let
01:04
and you would think something
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in mislili bi, da je pri nečem,
01:06
that's been around that long -- so restrictive, folding only --
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kar obstaja tako dolgo in je omejeno le na zlaganje,
01:09
everything that could be done has been done a long time ago.
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bilo ustvarjeno že vse, kar je možno.
01:12
And that might have been the case.
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Morda bi res bilo tako.
01:14
But in the twentieth century,
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A v 20. stoletju
01:16
a Japanese folder named Yoshizawa came along,
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je japonski zgibalec Yoshizawa
01:19
and he created tens of thousands of new designs.
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ustvaril več deset tisoč novih oblik.
01:22
But even more importantly, he created a language,
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A še bolj pomembno, ustvaril je jezik --
01:25
a way we could communicate,
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način sporazumevanja,
01:27
a code of dots, dashes and arrows.
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šifro iz pik, črtic in puščic.
01:29
Harkening back to Susan Blackmore's talk,
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Če se spomnimo govora Susan Blackmore,
01:31
we now have a means of transmitting information
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smo sedaj zmožni
01:33
with heredity and selection,
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prenašati podatke preko dednosti in selekcije
01:36
and we know where that leads.
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in vemo, kam to vodi.
01:38
And where it has led in origami
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Pri origamiju pa je vodilo
01:40
is to things like this.
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v takšne stvari.
01:42
This is an origami figure --
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To je origami figura:
01:44
one sheet, no cuts, folding only, hundreds of folds.
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en list, brez rezanja, na stotine zgibov.
01:50
This, too, is origami,
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Tudi to je origami in kaže,
01:52
and this shows where we've gone in the modern world.
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kam smo se usmerili v sodobnem svetu.
01:55
Naturalism. Detail.
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Naturalizem. Podrobnosti.
01:57
You can get horns, antlers --
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Ustvarimo lahko rogovje
01:59
even, if you look close, cloven hooves.
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in celo razklana kopita.
02:01
And it raises a question: what changed?
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Pojavi se vprašanje: kaj se je spremenilo?
02:04
And what changed is something
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Spremenilo se je nekaj,
02:06
you might not have expected in an art,
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česar pri umetnosti ne bi pričakovali,
02:09
which is math.
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namreč matematika.
02:11
That is, people applied mathematical principles
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Ljudje so pri tej umetnosti
02:13
to the art,
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uporabili matematične principe,
02:16
to discover the underlying laws.
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da bi odkrili njene zakonitosti.
02:18
And that leads to a very powerful tool.
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Nastalo je zelo zmogljivo orodje.
02:21
The secret to productivity in so many fields --
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Skrivnost učinkovitosti na tolikih področjih,
02:23
and in origami --
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tudi pri origamiju, je,
02:25
is letting dead people do your work for you.
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da tvoje delo opravijo mrtveci.
02:28
(Laughter)
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(Smeh)
02:29
Because what you can do is
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Svoj problem
02:31
take your problem,
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lahko spremeniš
02:33
and turn it into a problem that someone else has solved,
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v problem, ki ga je nekdo že rešil
02:36
and use their solutions.
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in uporabiš njihove rešitve.
02:38
And I want to tell you how we did that in origami.
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Pri origamiju smo to storili tako:
02:41
Origami revolves around crease patterns.
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Pomembni so vzorci zgibanja.
02:43
The crease pattern shown here is the underlying blueprint
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Tole tukaj je načrt
02:46
for an origami figure.
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za origami figuro.
02:48
And you can't just draw them arbitrarily.
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Ne moremo jih risati po svoje.
02:50
They have to obey four simple laws.
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Upoštevati morajo štiri zakonitosti.
02:53
And they're very simple, easy to understand.
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So enostavne in razumljive.
02:55
The first law is two-colorability. You can color any crease pattern
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Prva je dvobarvnost. Vsak vzorec zgibanja
02:58
with just two colors without ever having
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lahko pobarvamo z dvema barvama,
03:00
the same color meeting.
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brez da bi se ista barva stikala.
03:03
The directions of the folds at any vertex --
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Smeri zgibov pri vsakem vozlišču --
03:06
the number of mountain folds, the number of valley folds --
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število vbočenih in izbočenih zgibov --
03:09
always differs by two. Two more or two less.
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se vedno razlikuje za dva.
03:11
Nothing else.
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Dva več ali manj.
03:13
If you look at the angles around the fold,
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Če kote v zgibu
03:15
you find that if you number the angles in a circle,
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oštevilčimo v krogu, opazimo,
03:17
all the even-numbered angles add up to a straight line,
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da koti z sodimi števili tvorijo ravno črto
03:20
all the odd-numbered angles add up to a straight line.
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in isto je s koti z lihimi števili.
03:23
And if you look at how the layers stack,
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Če pogledamo zlaganje plasti,
03:25
you'll find that no matter how you stack folds and sheets,
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opazimo, da pri zlaganju zgibov in ploskev,
03:28
a sheet can never
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ploskev nikoli
03:30
penetrate a fold.
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ne prebode zgiba.
03:32
So that's four simple laws. That's all you need in origami.
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Pri origamiju rabite le te štiri zakonitosti.
03:35
All of origami comes from that.
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Vsak origami nastane iz njih.
03:37
And you'd think, "Can four simple laws
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Vprašate se, ali res lahko le z njimi
03:39
give rise to that kind of complexity?"
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ustvarimo takšno kompleksnost?
03:41
But indeed, the laws of quantum mechanics
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A tudi zakonitosti kvantne mehanike
03:43
can be written down on a napkin,
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lahko napišemo na prtiček,
03:45
and yet they govern all of chemistry,
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pa vseeno vladajo vsej kemiji,
03:47
all of life, all of history.
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življenju, zgodovini.
03:49
If we obey these laws,
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Če upoštevamo te zakonitosti,
03:51
we can do amazing things.
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lahko ustvarimo neverjetne stvari.
03:53
So in origami, to obey these laws,
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Pri origamiju lahko tako
03:55
we can take simple patterns --
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uporabimo preproste vzorce --
03:57
like this repeating pattern of folds, called textures --
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kot ta ponavljajoči vzorec oz. tekstura --
04:00
and by itself it's nothing.
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ki so sami po sebi nepomembni.
04:02
But if we follow the laws of origami,
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Če pa sledimo zakonitostim,
04:04
we can put these patterns into another fold
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jih lahko vstavimo v nek drug zgib,
04:07
that itself might be something very, very simple,
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ki je sam po sebi zelo preprost,
04:09
but when we put it together,
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vendar skupaj
04:11
we get something a little different.
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postaneta nekaj malce drugačnega.
04:13
This fish, 400 scales --
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Ta riba ima 400 lusk --
04:16
again, it is one uncut square, only folding.
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ponavljam, en list, samo zgibanje.
04:20
And if you don't want to fold 400 scales,
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Če nočete zgibati 400 lusk,
04:22
you can back off and just do a few things,
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lahko naredite le par stvari:
04:24
and add plates to the back of a turtle, or toes.
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plošče na želvjem oklepu ali prste.
04:27
Or you can ramp up and go up to 50 stars
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Lahko pa se potrudite in naredite
04:30
on a flag, with 13 stripes.
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50 zvezd in 13 črt na zastavi.
04:33
And if you want to go really crazy,
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Če pa si hočete dati duška,
04:36
1,000 scales on a rattlesnake.
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tisoč lusk na klopotači.
04:38
And this guy's on display downstairs,
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Razstavljena je spodaj,
04:40
so take a look if you get a chance.
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oglejte si jo, če utegnete.
04:43
The most powerful tools in origami
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Najmočnejša orodja pri origamiju
04:45
have related to how we get parts of creatures.
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nam pomagajo ustvariti dele bitij.
04:48
And I can put it in this simple equation.
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To lahko opišem s preprosto enačbo.
04:50
We take an idea,
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Vzamemo zamisel,
04:52
combine it with a square, and you get an origami figure.
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jo povežemo s kvadratom in dobimo origami figuro.
04:55
(Laughter)
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(Smeh)
04:59
What matters is what we mean by those symbols.
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Pomembno je, kaj simboli predstavljajo.
05:01
And you might say, "Can you really be that specific?
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Smo res lahko tako natančni?
05:04
I mean, a stag beetle -- it's got two points for jaws,
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Rogač ima čeljusti, tipalke.
05:06
it's got antennae. Can you be that specific in the detail?"
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Imamo lahko toliko podrobnosti?
05:10
And yeah, you really can.
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Ja.
05:13
So how do we do that? Well, we break it down
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Kako nam to uspe? Postopek razdelimo
05:16
into a few smaller steps.
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na več manjših korakov.
05:18
So let me stretch out that equation.
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Naj razširim to enačbo.
05:20
I start with my idea. I abstract it.
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Začnem z zamislijo. Jo naredim abstraktno.
05:23
What's the most abstract form? It's a stick figure.
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Najbolj abstraktna je figura iz črtic.
05:26
And from that stick figure, I somehow have to get to a folded shape
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Iz nje moram priti do zgibane oblike,
05:29
that has a part for every bit of the subject,
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ki ima del za vsak del predmeta.
05:32
a flap for every leg.
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Zavihek za vsako nogo.
05:34
And then once I have that folded shape that we call the base,
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Ko dobim to obliko, ti. osnovo,
05:37
you can make the legs narrower, you can bend them,
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lahko noge zožimo, upogibamo,
05:40
you can turn it into the finished shape.
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spremenimo v končno obliko.
05:42
Now the first step, pretty easy.
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Prvi korak je enostaven.
05:44
Take an idea, draw a stick figure.
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Zamisel in figura iz črtic.
05:46
The last step is not so hard, but that middle step --
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Tudi zadnji ni težak, ampak srednji --
05:49
going from the abstract description to the folded shape --
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prehod iz abstraktne v zgibano obliko --
05:52
that's hard.
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ta je težak.
05:54
But that's the place where the mathematical ideas
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A tukaj nam lahko matematične zamisli
05:56
can get us over the hump.
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pomagajo premagati oviro.
05:58
And I'm going to show you all how to do that
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Pokazal vam bo, kako to deluje,
06:00
so you can go out of here and fold something.
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da boste lahko šli nekaj zgibat.
06:02
But we're going to start small.
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Začeli bomo počasi.
06:04
This base has a lot of flaps in it.
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Ta osnova ima veliko zavihov.
06:06
We're going to learn how to make one flap.
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Naučili se bomo narediti enega.
06:09
How would you make a single flap?
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Kako bi to storili?
06:11
Take a square. Fold it in half, fold it in half, fold it again,
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Vzameš kvadrat, ga trikrat prepogneš,
06:14
until it gets long and narrow,
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da postane dolg in ozek
06:16
and then we'll say at the end of that, that's a flap.
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in tisto na koncu je zavih.
06:18
I could use that for a leg, an arm, anything like that.
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Postane lahko noga, roka itd.
06:21
What paper went into that flap?
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Koliko papirja smo porabili za zavih?
06:23
Well, if I unfold it and go back to the crease pattern,
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Če papir razgrnemo,
06:25
you can see that the upper left corner of that shape
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vidimo, da je zgornji levi kot
06:28
is the paper that went into the flap.
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uporabljen za zavih.
06:30
So that's the flap, and all the rest of the paper's left over.
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Preostali papir lahko uporabimo
06:33
I can use it for something else.
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za kaj drugega.
06:35
Well, there are other ways of making a flap.
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Zavih lahko naredimo še drugače.
06:37
There are other dimensions for flaps.
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Lahko je drugačnih dimenzij.
06:39
If I make the flaps skinnier, I can use a bit less paper.
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Če naredim ožjega, porabim manj papirja.
06:42
If I make the flap as skinny as possible,
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Če ga naredim najbolj ozkega,
06:45
I get to the limit of the minimum amount of paper needed.
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pridem do najmanjše porabe papirja
06:48
And you can see there, it needs a quarter-circle of paper to make a flap.
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in sicer četrtina kroga.
06:52
There's other ways of making flaps.
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Lahko jih naredim še drugače.
06:54
If I put the flap on the edge, it uses a half circle of paper.
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Če dam zavih na rob, porabim polkrog.
06:57
And if I make the flap from the middle, it uses a full circle.
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Če ga dam na sredino, pa cel krog.
07:00
So, no matter how I make a flap,
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Ni važno, kako zavih naredim,
07:02
it needs some part
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vedno se porabi
07:04
of a circular region of paper.
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neki del kroga na papirju.
07:06
So now we're ready to scale up.
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Čas je za nadgradnjo.
07:08
What if I want to make something that has a lot of flaps?
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Ustvariti hočem nekaj z več zavihi.
07:11
What do I need? I need a lot of circles.
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Kaj rabim? Veliko krogov.
07:15
And in the 1990s,
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V 90-ih letih
07:17
origami artists discovered these principles
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so odkrili te principe
07:19
and realized we could make arbitrarily complicated figures
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in spoznali, da lahko dobimo poljubno
07:22
just by packing circles.
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zapletene oblike z zlaganjem krogov.
07:25
And here's where the dead people start to help us out,
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Tu nam mrtveci začnejo pomagati.
07:28
because lots of people have studied
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Veliko ljudi je raziskovalo
07:31
the problem of packing circles.
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probleme z zlaganjem krogov.
07:33
I can rely on that vast history of mathematicians and artists
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Oprem se lahko na matematike in umetnike,
07:36
looking at disc packings and arrangements.
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ki so se ukvarjali s tem.
07:39
And I can use those patterns now to create origami shapes.
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Njihovi vzorci mi pomagajo pri origamiju.
07:43
So we figured out these rules whereby you pack circles,
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Po teh pravilih zlagaš kroge,
07:45
you decorate the patterns of circles with lines
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jih opremiš s črtami.
07:48
according to more rules. That gives you the folds.
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Dobiš zgibe,
07:50
Those folds fold into a base. You shape the base.
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iz katerih ustvariš osnovo. Jo oblikuješ.
07:53
You get a folded shape -- in this case, a cockroach.
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Dobiš zgibano obliko -- tukaj ščurka.
07:57
And it's so simple.
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Tako preprosto je.
07:59
(Laughter)
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(Smeh)
08:02
It's so simple that a computer could do it.
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Tako preprosto, da lahko to stori računalnik.
08:05
And you say, "Well, you know, how simple is that?"
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Vprašate: "Je to res preprosto?"
08:07
But computers -- you need to be able to describe things
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Pri računalnikih je treba stvari opisati
08:09
in very basic terms, and with this, we could.
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preprosto in tukaj smo jih lahko.
08:12
So I wrote a computer program a bunch of years ago
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Napisal sem program, "TreeMaker",
08:14
called TreeMaker, and you can download it from my website.
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dobite ga na moji spletni strani,
08:16
It's free. It runs on all the major platforms -- even Windows.
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brezplačno. Dela celo na Windowsih.
08:19
(Laughter)
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(Smeh)
08:21
And you just draw a stick figure,
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Narišete figuro iz črtic
08:23
and it calculates the crease pattern.
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in dobite shemo zgibov.
08:25
It does the circle packing, calculates the crease pattern,
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Zloži kroge in ustvari shemo zgibov
08:28
and if you use that stick figure that I just showed --
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in če uporabite to obliko,
08:30
which you can kind of tell, it's a deer, it's got antlers --
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lahko vidite, da je jelen,
08:33
you'll get this crease pattern.
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dobite tole shemo zgibov.
08:35
And if you take this crease pattern, you fold on the dotted lines,
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Če zgibate po črticah,
08:37
you'll get a base that you can then shape
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dobite osnovo, iz katere oblikujete
08:40
into a deer,
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jelena
08:42
with exactly the crease pattern that you wanted.
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s hoteno shemo zgibov.
08:44
And if you want a different deer,
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Če hočete drugačnega,
08:46
not a white-tailed deer, but you want a mule deer, or an elk,
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ne belorepega jelena,
08:49
you change the packing,
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spremenite zlaganje
08:51
and you can do an elk.
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in lahko ustvarite vapitija.
08:53
Or you could do a moose.
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Ali losa.
08:55
Or, really, any other kind of deer.
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Ali kateregakoli jelena.
08:57
These techniques revolutionized this art.
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Te tehnike so zrevolucionirale to umetnost.
09:00
We found we could do insects,
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Lahko smo ustvarili žuželke,
09:02
spiders, which are close,
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pajke,
09:04
things with legs, things with legs and wings,
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bitja z nogami, z nogami in krili,
09:08
things with legs and antennae.
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z nogami in tipalkami.
09:10
And if folding a single praying mantis from a single uncut square
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Če ena bogomolka iz enega kvadrata
09:13
wasn't interesting enough,
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ni dovolj zanimiva,
09:15
then you could do two praying mantises
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lahko iz enega kvadrata
09:17
from a single uncut square.
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ustvarimo dve.
09:19
She's eating him.
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Ona jé njega.
09:21
I call it "Snack Time."
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Imenujem ga "Čas za malico".
09:24
And you can do more than just insects.
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Ustvarimo lahko ne le žuželke.
09:26
This -- you can put details,
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Dodamo lahko podrobnosti:
09:28
toes and claws. A grizzly bear has claws.
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prste in kremplje. Grizli ima kremplje.
09:31
This tree frog has toes.
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Ta žaba ima prste.
09:33
Actually, lots of people in origami now put toes into their models.
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Veliko ljudi dodaja prste.
09:36
Toes have become an origami meme,
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Postali so modna muha,
09:38
because everyone's doing it.
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ki jo vsi posnemajo.
09:41
You can make multiple subjects.
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Ustvarimo lahko več predmetov.
09:43
So these are a couple of instrumentalists.
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Tukaj sta dva glasbenika.
09:45
The guitar player from a single square,
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Oba, kitarist in basist,
09:48
the bass player from a single square.
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sta ustvarjena iz enega kvadrata.
09:50
And if you say, "Well, but the guitar, bass --
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Če rečete: Kitara in bas
09:52
that's not so hot.
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nista zanimiva,
09:54
Do a little more complicated instrument."
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naredite bolj zapleteno glasbilo.
09:56
Well, then you could do an organ.
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Ustvarimo lahko orgle.
09:58
(Laughter)
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(Smeh)
10:01
And what this has allowed is the creation
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S tem lahko ustvarimo
10:03
of origami-on-demand.
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origami na zahtevo.
10:05
So now people can say, "I want exactly this and this and this,"
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Kar ljudje zahtevajo,
10:08
and you can go out and fold it.
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to lahko ustvarimo.
10:11
And sometimes you create high art,
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Včasih ustvarimo umetnost,
10:13
and sometimes you pay the bills by doing some commercial work.
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včasih pa samo komercialen izdelek.
10:16
But I want to show you some examples.
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Naj vam pokažem primer.
10:18
Everything you'll see here,
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Vse, kar boste videli,
10:20
except the car, is origami.
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razen avta, je origami.
10:23
(Video)
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(Video)
10:51
(Applause)
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(Aplavz)
10:54
Just to show you, this really was folded paper.
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To je res bil le zgiban papir.
10:57
Computers made things move,
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Premikal jih je računalnik,
10:59
but these were all real, folded objects that we made.
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a vsi so bili zgibani predmeti.
11:03
And we can use this not just for visuals,
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Niso le vizualni pripomočki,
11:06
but it turns out to be useful even in the real world.
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ampak so tudi uporabni v resničnem svetu.
11:09
Surprisingly, origami
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Presenetljivo so origami
11:10
and the structures that we've developed in origami
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in strukture, ustvarjene z njim,
11:13
turn out to have applications in medicine, in science,
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uporabni v medicini, znanosti,
11:16
in space, in the body, consumer electronics and more.
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vesolju, telesu, elektroniki itd.
11:19
And I want to show you some of these examples.
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Naj vam pokažem par primerov.
11:22
One of the earliest was this pattern,
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Eden zgodnejših
11:24
this folded pattern,
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je ta zgiban vzorec,
11:26
studied by Koryo Miura, a Japanese engineer.
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ki ga je preučeval inženir, Koryo Miura.
11:29
He studied a folding pattern, and realized
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Ugotovil je,
11:31
this could fold down into an extremely compact package
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da se lahko zloži v zelo kompakten paket,
11:34
that had a very simple opening and closing structure.
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ki se enostavno odpira in zapira.
11:37
And he used it to design this solar array.
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Z njim je ustvaril ta solarni zbiralec.
11:40
It's an artist's rendition, but it flew in a Japanese telescope
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1995 je poletel
11:43
in 1995.
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z japonskim teleskopom.
11:45
Now, there is actually a little origami
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Preprost origami je tudi
11:47
in the James Webb Space Telescope, but it's very simple.
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v teleskopu Jamesa Webba.
11:50
The telescope, going up in space,
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Ko gre teleskop v vesolje,
11:52
it unfolds in two places.
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se na dveh delih razgrne.
11:55
It folds in thirds. It's a very simple pattern --
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Vzorec je preprost,
11:57
you wouldn't even call that origami.
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težko bi mu rekli origami.
11:59
They certainly didn't need to talk to origami artists.
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Niso rabili pomoči umetnikov origamija.
12:02
But if you want to go higher and go larger than this,
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Če pa želimo nekaj večjega,
12:05
then you might need some origami.
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bo pomoč origamija potrebna.
12:07
Engineers at Lawrence Livermore National Lab
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V laboratoriju Lawrenca Livermora
12:09
had an idea for a telescope much larger.
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so si zamislili mnogo večji teleskop,
12:12
They called it the Eyeglass.
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imenovan "Okular".
12:14
The design called for geosynchronous orbit
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Potuje po geosinhroni orbiti,
12:16
25,000 miles up,
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42.000 km visoko,
12:18
100-meter diameter lens.
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z lečo premera 100 m,
12:21
So, imagine a lens the size of a football field.
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torej velikosti nogometnega igrišča.
12:24
There were two groups of people who were interested in this:
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Za to so se zanimali dve skupini:
12:26
planetary scientists, who want to look up,
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planetarni znanstveniki, ki bi gledali gor
12:29
and then other people, who wanted to look down.
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in drugi ljudje, ki bi gledali dol.
12:33
Whether you look up or look down,
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Ne glede, kam gledamo,
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 ga spravimo v vesolje? Z raketo.
12:38
And rockets are small. So you have to make it smaller.
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A te so majhne, zato ga moramo pomanjšati.
12:41
How do you make a large sheet of glass smaller?
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Kako pomanjšamo veliko ploščo stekla?
12:43
Well, about the only way is to fold it up somehow.
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Nekako jo je treba zložiti.
12:46
So you have to do something like this.
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Potrebno je nekaj takega --
12:48
This was a small model.
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to je pomanjšan model.
12:51
Folded lens, you divide up the panels, you add flexures.
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Lečo razdelimo, dodamo pregibe.
12:53
But this pattern's not going to work
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A to ne bo delovalo, če hočemo
12:56
to get something 100 meters down to a few meters.
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100-metrsko lečo zložiti na par metrov.
12:59
So the Livermore engineers,
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Inženirji iz Livermora
13:01
wanting to make use of the work of dead people,
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so hoteli izkoristili delo mrtvecev,
13:03
or perhaps live origamists, said,
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oz. živih origamistov in rekli:
13:06
"Let's see if someone else is doing this sort of thing."
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"Poglejmo, če že kdo to počne".
13:09
So they looked into the origami community,
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Stopili so v stik z origamisti
13:12
we got in touch with them, and I started working with them.
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in začel sem delati z njimi.
13:14
And we developed a pattern together
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Skupaj smo razvili vzorec,
13:16
that scales to arbitrarily large size,
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primeren za poljubne velikosti,
13:18
but that allows any flat ring or disc
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s katerim lahko katerikoli ploski disk
13:22
to fold down into a very neat, compact cylinder.
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zložimo v kompakten cilinder.
13:25
And they adopted that for their first generation,
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To so storili pri prvi generaciji
13:27
which was not 100 meters -- it was a five-meter.
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velikosti 5 m.
13:29
But this is a five-meter telescope --
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A ta 5-metrski teleskop
13:31
has about a quarter-mile focal length.
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ima goriščno razdaljo 400 m.
13:33
And it works perfectly on its test range,
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Pri testiranju se je odlično odrezal
13:35
and it indeed folds up into a neat little bundle.
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in se res zložil v majhen sveženj.
13:39
Now, there is other origami in space.
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V vesolju so še drugi origamiji.
13:41
Japan Aerospace [Exploration] Agency flew a solar sail,
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JAXA so razprli solarno jadro
13:44
and you can see here that the sail expands out,
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in tukaj lahko vidite,
13:47
and you can still see the fold lines.
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da so črte zgibanja še opazne.
13:49
The problem that's being solved here is
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Tako so rešili težavo,
13:52
something that needs to be big and sheet-like at its destination,
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kjer mora velika ploskev priti do cilja,
13:55
but needs to be small for the journey.
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med potovanjem pa biti majhna.
13:57
And that works whether you're going into space,
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To deluje pri odhodu v vesolje
14:00
or whether you're just going into a body.
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ali vstopu v telo.
14:03
And this example is the latter.
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To je primer drugega.
14:05
This is a heart stent developed by Zhong You
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To žilno opornico je razvil Zhong You
14:08
at Oxford University.
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iz Oxfordske univerze.
14:10
It holds open a blocked artery when it gets to its destination,
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Odpira zadelane arterije,
14:13
but it needs to be much smaller for the trip there,
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a mora biti mnogo manjša
14:16
through your blood vessels.
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za pot skozi krvne žile.
14:18
And this stent folds down using an origami pattern,
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Zloži se po vzorcu, ki uporablja
14:21
based on a model called the water bomb base.
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ti. osnovo za vodno bombo.
14:25
Airbag designers also have the problem
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Tudi oblikovalci zračnih blazin
14:27
of getting flat sheets
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se soočajo s težavo,
14:29
into a small space.
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kako ravno ploskev spraviti v majhen prostor.
14:32
And they want to do their design by simulation.
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Pomagajo si s simulacijo.
14:34
So they need to figure out how, in a computer,
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Na računalniku morajo ugotoviti,
14:36
to flatten an airbag.
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kako sploščiti zračno blazino.
14:38
And the algorithms that we developed
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Algoritmi, s katerimi
14:40
to do insects
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izdelujemo žuželke,
14:42
turned out to be the solution for airbags
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so se izkazali za rešitev
14:45
to do their simulation.
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pri njihovih simulacijah.
14:47
And so they can do a simulation like this.
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Simulacija je taka.
14:50
Those are the origami creases forming,
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To so pregibi origamija.
14:52
and now you can see the airbag inflate
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Zdaj vidimo napihovanje blazine
14:54
and find out, does it work?
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in ugotovimo, če deluje.
14:57
And that leads
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To vodi
14:59
to a really interesting idea.
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k zelo zanimivi zamisli.
15:01
You know, where did these things come from?
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Od kod so prišle te stvari?
15:04
Well, the heart stent
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Žilna opornica
15:06
came from that little blow-up box
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od napihljive škatle,
15:08
that you might have learned in elementary school.
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ki ste se je morda učili v šoli.
15:11
It's the same pattern, called the water bomb base.
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Osnova je ista, ti. vodna bomba.
15:14
The airbag-flattening algorithm
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Algoritem pri zračnih blazinah
15:16
came from all the developments
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je prišel iz razvoja
15:18
of circle packing and the mathematical theory
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zlaganja krogov in matematične teorije,
15:21
that was really developed
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uporabljene pri izdelovanju
15:23
just to create insects -- things with legs.
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žuželk -- bitij z nogami.
15:27
The thing is, that this often happens
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To se pogosto zgodi
15:29
in math and science.
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v matematiki in znanosti.
15:31
When you get math involved, problems that you solve
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Matematiko uporabimo pri zadevah
15:34
for aesthetic value only,
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estetske narave,
15:36
or to create something beautiful,
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ali pri ustvarjanju nečesa lepega,
15:38
turn around and turn out
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potem pa se izkaže,
15:40
to have an application in the real world.
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da so te zadeve resnično uporabne.
15:43
And as weird and surprising as it may sound,
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Naj se sliši še tako nenavadno,
15:46
origami may someday even save a life.
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a origami bo morda nekomu rešil življenje.
15:50
Thanks.
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Hvala.
15:52
(Applause)
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(Aplavz)
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