ABOUT THE SPEAKER
Al Seckel - Master of visual illusions
Al Seckel explored how eye tricks can reveal the way the brain processes visual information -- or fails to do so. Among his other accomplishments: He co-created the Darwin Fish.

Why you should listen

Al Seckel took great delight in visual illusions and the brain mechanics that they reveal. The author of many books and articles, he also designed interactive museum exhibits around the world that allow visitors to play with illusions and understand how they work.

A noted lecturer, he was a member of the Edge Foundation, a founder of the Southern California Skeptics, a campaigner against the teaching of creationism in public schools -- and co-creator of the Darwin Fish. Seckel died in 2015. Watch his 2010 talk from TEDxUSC: "[Y]Our Mind's Eye" >>

Note: A previous version of this biography described Seckel as a "cognitive neuroscientist," which was not accurate.

More profile about the speaker
Al Seckel | Speaker | TED.com
TED2004

Al Seckel: Visual illusions that show how we (mis)think

Al Seckel pravi, da so naši možgani narobe zvezani

Filmed:
2,460,814 views

Al Seckel, kognitivni nevroznanstvenik, raziskuje zaznavne iluzije, ki prelisičijo naše možgane. Kup vizualnih trikov mu ne pomaga dokazati le, da smo zlahka prevarljivi, pač pa da nam je to na nek način tudi všeč.
- Master of visual illusions
Al Seckel explored how eye tricks can reveal the way the brain processes visual information -- or fails to do so. Among his other accomplishments: He co-created the Darwin Fish. Full bio

Double-click the English transcript below to play the video.

00:25
We're going to talk -- my -- a newnovo lecturepredavanje, just
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Govorili bomo o -- moje novo predavanje, posebej za TED ---
00:26
for TEDTED -- and I'm going showshow you some illusionsiluzije
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in pokazal vam bom nekaj iluzij,
00:29
that we'vesmo createdustvarjeno for TEDTED, and I'm going to try
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ki sem jih pripravil za TED. Poskušal bom to
00:32
to relatese nanašajo this to happinesssreča. What I was thinkingrazmišljanje
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povezati s srečo in veseljem. Razmišljal sem o tem,
00:34
about with happinesssreča is, what givesdaje happinesssreča --
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kaj je sreča, kaj jo povzroči - srečo,
00:37
or happinesssreča, whichki I equateenačijo with joyveselje in my
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ki jo enačim z veseljem v tem
00:41
particularzlasti areaobmočje, and I think there's something very
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konkretnem primeru - in zdi se mi, da mora biti
00:43
fundamentaltemeljno. And I was thinkingrazmišljanje about this. And
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nekaj bistvenega. O tem sem razmišljal.
00:47
it's in termspogoji of bothoboje illusionsiluzije and moviesfilmov that we
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Pri teh iluzijah in filmih, ki jih
00:51
go see and jokesšale and magicmagija showskaže is that there's
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gledamo in v šalah in čarovniških trikih
00:55
something about these things where our
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je nekaj takega, kar prekrši naša
00:57
expectationspričakovanja are violatedkršeno in some sortRazvrsti of pleasingprijeten
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pričakovanja na nek prijeten način.
01:01
way. You go see a moviefilm. And it has an unexpectednepričakovano
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Ogledamo si film, ki ima nepričakovan
01:04
twisttwist -- something that you didn't expectpričakovati -- and
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obrat -- nekaj, česar nismo pričakovali -- in
01:07
you find a joyfulveselo experienceizkušnje. You look at those
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to zaznamo kot prijetno izkušnjo. Gledamo vse
01:10
sortRazvrsti of illusionsiluzije in my bookknjigo and it's not as what
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te iluzije v moji knjigi in izkaže se, da niso,
01:13
you'dTi bi expectpričakovati. And there's something joyfulveselo about
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kar pričakujemo. In spet je nekaj prijetnega
01:15
it. And it's the sameenako thing with jokesšale and all
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v tem. Enako je s šalami in drugimi
01:18
these sortsvrste of things. So, what I'm going to try
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podobnimi zadevami. Torej, kar bom poskušal
01:21
and do in my lecturepredavanje is go a little bitbit furthernadalje
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narediti na svojem predavanju, je iti malenkost
01:24
and see if I can violatekršiti your expectationspričakovanja in a
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dlje in ugotoviti, če lahko prekršim vaša pričakovanja
01:27
pleasingprijeten way. I mean, sometimesvčasih expectationspričakovanja that
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na prijeten način. Mislim, včasih pričakovanja, ki so
01:30
are violatedkršeno are not pleasantprijetno, but I'm going to try
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kršena, niso prijetna, toda sam bom poskusil
01:32
to do it in a pleasantprijetno way, in a very primalprimarni way,
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to izvesti na prijeten način, na zelo enostaven način
01:35
so I can make the audienceobčinstvo here happyvesel.
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in tako razveseliti občinstvo tukaj.
01:37
So I'm going to showshow you some waysnačinov that we can
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Torej, pokazal vam bom nekaj načinov, kako lahko
01:40
violatekršiti your expectationspričakovanja. First of all, I want to
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prekršim vaša pričakovanja.. Najprej bi vam pokazal
01:43
showshow you the particularzlasti illusioniluzija here. I want you
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določeno iluzijo. Rad bi -
01:46
first of all when it popspops up on the screenzaslon to
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ko se pokaže slika - da opazite,
01:49
noticeopaziti that the two holesluknje are perpendicularpravokotno to
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da sta luknji pravzaprav pravokotni
01:51
eachvsak other. These are all perceptualperceptual trickstriki. These
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ena na drugo. To so zaznavni triki. To,
01:55
are realresnično objectspredmetov that I'm going to showshow you. Now
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kar vam bom pokazal, so vse resnični predmeti.
02:06
I'm going to showshow you how it is doneKončano. I've loopedzanko
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Pokazal vam bom tudi, kako je narejeno. Film
02:09
the filmfilm here so you can get a very interestingzanimivo
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sem zavrtel tako, da lahko doživite zanimivo
02:11
experienceizkušnje. I want you to see how this illusioniluzija is
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izkušnjo. Hočem, da vidite, kako so iluzije
02:14
constructedzgrajeno, and it's going to rotatevrtite so you see
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narejene. Zavrtelo se bo in opazili boste, da je
02:17
that it's insideznotraj out. Now watch, as it rotatesvrti
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stvar vbočena. Opazujte zdaj, ko se zavrti
02:20
back, how quicklyhitro your perceptionzaznavanje snapspripne. OK now.
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nazaj, kako hitro se vaša zaznava spremeni. Tako.
02:26
Watch it as it rotatesvrti back again. And this is a very
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Opazujte, kako se spet zavrti nazaj. In vi ste zelo
02:29
brightsvetlo audienceobčinstvo, all right? See if you can stop it
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bistro občinstvo, ne? Poskušajte preprečiti
02:32
from happeningdogaja, even thoughčeprav you know 100 percentodstotkov it's
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spremembo zaznave. Čeprav ste 100% prepričani,
02:35
trueresnično that -- bambam! You can't undorazveljaviti it. What does
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-- bam! Ne morete si pomagati. Kaj nam to
02:40
that tell you about yourselvessami? We're going to do
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pove o nas samih? Ponovili bomo.
02:44
it again. No doubtdvom about it. See if you can stop
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Brez dvoma. Poglejte, če vam uspe preprečiti
02:47
it from happeningdogaja. No. It's difficulttežko.
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učinek zaznave. Ne. Težko je.
02:54
And we can violatekršiti your expectationspričakovanja in a wholeceloto
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Pričakovanja lahko prekršimo na
02:57
varietysorta of waysnačinov about representationzastopanje, about shapeobliko,
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veliko načinov - glede predstave, glede oblike,
03:00
about colorbarva and so forthnaprej and it's very primalprimarni. And
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glede barve itd. Zadeva je prvinska. Postavlja
03:03
it's an interestingzanimivo questionvprašanje to ponderpremisli, why these
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se zanimivo vprašanje. Zakaj nas te stvari
03:06
things -- we find these things joyfulveselo. Why would
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spravljajo v dobro voljo. Zakaj nas
03:10
we find them joyfulveselo? So, here'sTukaj je something that
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spravljajo v dobro voljo? Tole je nekaj, kar je
03:13
LionelLionel did a while agonazaj. I like these sortRazvrsti of
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Lionel naredil pred časom. Všeč so mi
03:15
little things like this.
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te zanimive malenkosti.
03:19
Again, this is not an opticaloptični tricktrik. This is what
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Spet - to ni optični trik. To bi
03:22
you would see. In other wordsbesede, it's not a camerakamera
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zares videli tako. Skratka, to ni trik
03:42
cutcut. It's a perceptualperceptual tricktrik.
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s kamero. To je zaznavna iluzija.
03:55
OK. We can violatekršiti your expectationspričakovanja about
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OK. Lahko prekršimo pričakovanja tudi
03:57
shapeobliko.
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glede oblike.
04:16
We can violatekršiti your expectationspričakovanja on representationzastopanje
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Prekršimo lahko tudi pričakovanja glede predstave same
04:20
-- what an imagesliko representspredstavlja. What do you see here?
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-- kaj slika predstavlja. Kaj vidite tukaj?
04:25
How manyveliko of you here see dolphinsDelfini? RaiseDvig your handroka
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Koliko vas vidi delfine? Dvignite roko,
04:32
if you see dolphinsDelfini. OK, those people who raiseddvignjen
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če vidite delfine. OK, tisti, ki ste dvignili
04:36
theirnjihovi handsroke, afterwardspotem, the restpočitek of the audienceobčinstvo,
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roke, po govoru se pogovorite z ostalimi.
04:38
go talk to them, all right? ActuallyDejansko, this is the
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Prav? V bistvu je to
04:42
bestnajboljši exampleprimer of primingsprožilni by experienceizkušnje that I know.
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najboljši način priprave skozi izkušnjo, ki ga poznam.
04:46
If you are a childotrok underSpodaj the agestarost of 10 who
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Če ste manj kot 10 let star otrok,
04:50
haven'tne been ruineduničen yetše, you will look at this
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ki še ni bil pokvarjen, boste ob pogledu na
04:53
imagesliko and see dolphinsDelfini. Now, some of you adultsodrasli
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to sliko videli delfine. Nekateri odrasli med vami
04:57
here are sayinggovoriti, "What dolphinsDelfini? What dolphinsDelfini?"
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se sprašujete: "Kateri delfini? Kakšni delfini?"
04:59
But in factdejstvo, if you reversedobrnil the figureštevilka groundtla --
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Toda dejansko, če zamenjate podlago --
05:02
in other wordsbesede, the darktemno areasobmočja here -- I forgotpozabil to
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z drugimi besedami, temnejša območja tukaj -- pozabil
05:05
askvprašajte for a pointerkazalec -- but if you reverseobratno it, you'llboš
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sem zahtevati kazalnik -- torej, če zamenjate podlago,
05:07
see a wholeceloto seriesserije of little dolphinsDelfini. By the way,
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boste opazili celo serijo delfinov. Mimogrede,
05:10
if you're alsotudi a studentštudent at CalTechCalTech -- they alsotudi
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če ste študent na CalTech -- oni ravno tako vidijo
05:13
tendnagibati se to just see the dolphinsDelfini. It's basedtemelji on
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samo delfine. Odvisno je
05:16
experienceizkušnje.
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od izkušenj.
05:20
Now, something like this can be used because this
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Nekaj takega lahko uporabimo, ker je
05:23
is after all talk about designoblikovanje, too. This was
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to nenazadnje govor tudi o oblikovanju. To je naredila agencija
05:25
doneKončano by SaatchiSaatchi and SaatchiSaatchi, and they actuallydejansko got
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Saatchi and Saacchi in dejansko
05:28
away with this adoglas in AustraliaAvstralija. So, if you look at
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so se izmazali s to reklamo v Avstraliji. Če pogledate
05:31
this adoglas for beerpivo, all those people are in sortRazvrsti of
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to reklamo za pivo, so vse te osebe
05:36
provocativeprovokativen positionspoložaje. But they got it passedminilo, and
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v nekih provokativnih pozicijah. Prebili so se skozi kritike in
05:39
actuallydejansko wonzmagal the ClioClio awardsnagrade, so it's funnysmešno how you can do
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dejansko dobili CLIO Award. Zabavno je delati
05:43
these things.
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te reči.
05:44
RememberNe pozabite that sortRazvrsti of, umsistem poenotenega sporočanja. This is the jokeŠala I did
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Se spomnite tega? To je šala, ki sem jo naredil,
05:52
when the FloridaFlorida ballotglasovanje was going around. You
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ko je bil aktualen škandal preštevanja glasov na Floridi.
05:56
know, countšteje the dotspike for GoreGore; countšteje the dotspike for
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Saj veste, preštejte pike za Gora, preštejte
05:58
BushBush; countšteje 'em"em again ...
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pike za Busha. Ponovno jih preštejte.
06:03
You can violatekršiti your expectationspričakovanja about
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Kršite lahko pričakovanja glede izkušnje.
06:06
experienceizkušnje. Here is an outsidezunaj watervoda fountainvodnjak that
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To je zunanji vodnjak,
06:13
I createdustvarjeno with some friendsprijatelji of minemoj, but you can
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ki sem ga naredil s prijatelji, vendar lahko
06:15
stop the watervoda in dropskapljice and -- actuallydejansko make all
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vodne kaplje ustavite -- kaplje lahko dejansko
06:18
the dropskapljice levitateLebdjeti. This is something we're
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lebdijo v zraku. Take stvari gradimo za,
06:24
buildingstavbe for, you know, amusementzabaviščni parksparki and that
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saj veste, zabaviščne parke
06:26
kindvrste of stuffstvari.
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in podobne reči.
06:27
Now let's take a staticstatični imagesliko. Can you see this?
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Poskusimo zdaj s statično sliko. Vidite to?
06:31
Do you see the middlesredi sectionoddelek movingpremikanje down and the
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Vidite sredino, ki se pomika navzdol, in
06:34
outerzunaj sectionsoddelkov movingpremikanje up? It's completelypopolnoma staticstatični.
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zunanji strani, ki se pomikata navzgor?
06:38
It's a staticstatični imagesliko. How manyveliko people see this
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Slika je popolnoma statična. Koliko ljudi
06:40
illusioniluzija? It's completelypopolnoma staticstatični.
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vidi to iluzijo? Poponoma statična je.
06:46
Right. Now, when -- it's interestingzanimivo that when we
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Prav. Zanimivo je, da ko pogledamo
06:49
look at an imagesliko we see, you know, colorbarva, depthglobino,
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neko sliko, vedno vidimo barvo, globino,
06:53
texturetekstura. And you can look at this wholeceloto scenescene and
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teksturo. Poglejte si tole situacijo
06:56
analyzeanalizirati it. You can see the womanženska is in closerbližje than
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in jo analizirajte. Vidite žensko, ki je bliže kot
06:59
the wallzid and so forthnaprej. But the wholeceloto thing is
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zid in tako dalje. Vendar je vsa zadeva
07:01
actuallydejansko flatstanovanje. It's paintednaslikal. It's trompetrompe l'oeill'oeil.
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pravzaprav ravna. Naslikana je. Trompe l'oeil (trik za oči).
07:06
And it was suchtako a good trompetrompe l'oeill'oeil that people
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To je bil tako dober trompe l'oeil, da so bili
07:08
got irritatedrazdraženi when they triedposkušal to talk to the
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ljudje kar razdraženi, ko so nagovarjali
07:10
womanženska and she wouldn'tne bi respondodgovoriti.
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žensko in ni reagirala.
07:15
Now, you can make designoblikovanje mistakesnapake. Like this
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Zgodijo se vam lahko tudi napake v oblikovanju.
07:19
buildingstavbe in NewNove YorkYork. So that when you see it from
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Kot recimo tale stavba v New Yorku. Če jo pogledate z ene
07:25
this sidestran, it looksizgleda like the balconiesbalkoni tiltnagib up,
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strani, izgleda, kot da so balkoni zasukani navzgor,
07:28
and when you walkhodi around to the other sidestran it
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ko pa pogledate z druge strani,
07:30
looksizgleda like the balconiesbalkoni go down. So there are
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izgleda, kot da balkoni visijo. To so
07:35
casesprimerov where you have mistakesnapake in designoblikovanje that
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primeri, ko napake v oblikovanju
07:37
incorporatevključi illusionsiluzije.
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prinesejo iluzije.
07:38
Or, you take this particularzlasti un-retouchedbrez retuširanja
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Poglejte si tudi tole neretuširano
07:41
photographfotografija. Now, interestinglyzanimivo enoughdovolj, I get a lot
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fotografijo. Zanimivo je, da dobivam kar precej
07:49
of emailse-pošto from people who say, "Is there any
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elektronske pošte od ljudi, ki me sprašujejo, če obstaja
07:51
perceptualperceptual differenceRazlika betweenmed malesmoški and femalessamice?"
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zaznavna razlika med moškimi in ženskami.
07:56
And I really say, "No." I mean, womenženske can navigatekrmarite
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Pravim, da ne. Ženske lahko navigirajo
07:58
throughskozi the worldsvet just as well as malesmoški can -- and
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skozi življenje ravno tako dobro kot moški --
08:01
why wouldn'tne bi they? HoweverVendar, this is the one
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in le zakaj ne bi? Kakorkoli, tole iluzijo
08:03
illusioniluzija that womenženske can consistentlydosledno do better
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ženske konsistentno razvozlavajo veliko bolje
08:06
than malesmoški: in matchingujemanje whichki headglava because they
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kot moški: povezati glavo s telesom, ker se zanašajo
08:09
relyzanašajte se on fashionmoda cuespokazatelje. They can matchtekmo the hatklobuk.
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na modne znake. Povežejo klobuk in obleko.
08:15
Okay, now gettingpridobivanje to a partdel -- I want to showshow
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Tako, zdaj prehajamo na del, kjer vam želim
08:17
designoblikovanje in illusionsiluzije. I believe that the first
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pokazati oblikovanje z iluzijami. Mislim, da je prvi
08:20
exampleprimer of illusionsiluzije beingbiti used purposelynamenoma was by
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primer namenske uporabe iluzije, naredil
08:25
dada VinciVinci in this anamorphicizmaličena projekcija imagesliko of an eyeoči. So
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da Vinci v tej sliki očesa. Če sliko
08:31
that when you saw from one little anglekota was like
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pogledamo z zelo ostrega kota, vidimo to.
08:34
this. And this little techniquetehnika got popularpriljubljena in the
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Ta tehnika je postala popularna
08:37
16thth centurystoletje and the 17thth centurystoletje to disguisepreobleki
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v 16. in 17. stoletju in z njo so prikrivali
08:40
hiddenskrito meaningspomenov, where you could flipflip the imagesliko and
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skrita sporočila. Če sliko pogledate
08:43
see it from one little pointtočka of viewpogled like this.
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z določenega kota, jih vidite.
08:48
But these are earlyzgodaj incorporationsincorporations of illusionsiluzije
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To so začetki teh načinov, ki so
08:51
broughtprinesel to -- sortRazvrsti of highvisoko pointtočka with HansHans
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doživeli svoj vrhunec z Ambasadorjem Hansa
08:53
Holbein'sHolbein je "AmbassadorsAmbasadorji." And HansHans HolbeinHolbein workeddelal
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Holbeina. Hans Holbein je ustvarjal
08:56
for HenryHenry VIIIVIII. This was hungvisi on a wallzid where you
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za Henrika VIII. Ta slika je visela na stopnišču
09:00
could walkhodi down from the stairstopnišče and you can see
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in ko ste se spuščali po stopnicah, ste lahko
09:02
this hiddenskrito skulllobanja.
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videli skrito lobanjo.
09:06
All right, now I'm going to showshow you some
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Zdaj vam bom pokazal še nekaj
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designersoblikovalci who work with illusionsiluzije to give that
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oblikovalcev, ki so uporabljali iluzije,
09:11
elementelement of surprisepresenečenje. One of my favoritespriljubljene is ScottScott
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da presenetijo. Eden mojih najljubših je
09:14
KimKim. I workeddelal with ScottScott to createustvarite some illusionsiluzije
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Scott Kim. S Scottom sva pripravila nekaj iluzij
09:18
for TEDTED that I hopeupanje you will enjoyuživajte. We have one
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posebej za TED in upam, da boste uživali. Tale
09:23
here on TEDTED and happinesssreča.
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je na temo TED-a in sreče.
09:41
OK now. ArthurArthur [GansonGanson] hasn'tni talkedgovoril yetše, but his is
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OK. Arthur [Ganson] še ni imel svojega govora, vendar
09:44
going to be a delightfulčudovito talk and he has some of
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bo čudovit nastop in zunaj ima pripravljenih
09:47
his really fantasticfantastično machinesstroji outsidezunaj. And so, we
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nekaj fantastičnih naprav. S Scottom sva pripravila
09:54
-- ScottScott createdustvarjeno this wonderfulČudovito tributepoklon to ArthurArthur
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tole čudovito posvetilo
09:57
GansonGanson.
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Arthurju Gansonu.
10:09
Well, there's analoganalogni and digitaldigitalni. Thought that
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Tukaj imamo analogno in digitalno. Zdelo se
10:17
was appropriateprimerno here.
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mi je precej primerno.
10:23
And figureštevilka goesgre to groundtla.
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"Figure" se spremeni v "Ground"
10:38
And for the musiciansglasbeniki.
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Nekaj za glasbenike.
10:59
And of courseseveda, sinceod happinesssreča -- we want "joyveselje to the
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In seveda, ker je tema sreča - želimo "joy to the
11:01
worldsvet."
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world".
11:11
Now, anotherdrugo great designeroblikovalec -- he's very well
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Še en velik oblikovalec -- dobro znan
11:13
knownznano in JapanJaponska -- ShigeoShigeo FukudaFukuda. And he just
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na Japonskem -- Shigeo Fukuda. Naredil
11:18
buildsgradi some fantasticfantastično things. This is simplypreprosto
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je nekaj prekrasnih stvari. Preprosto
11:20
amazingneverjetno. This is a pilekup of junkjunk that when you viewpogled
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fantastično. To je kup smeti in če jih pogledamo
11:27
it from one particularzlasti anglekota, you see its
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pod pravim kotom, v odsevu
11:36
reflectionrazmišljanje in the mirrorogledalo as a perfectpopolno pianoklavir.
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ogledala zagledamo popoln klavir.
11:54
PianistPianist transformspreoblikuje to violinistviolinista.
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Pianist se preobrazi v violinista.
12:07
This is really wilddivji. This assemblageskupek of forksvilice,
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Tole je precej divje. Tale zbirka vilic,
12:13
knivesnoži and spoonsžlice and variousrazlično cutleryjedilni pribor, weldedvarjene
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nožev, žlic in raznovrstnega pribora, zvarjena
12:16
togetherskupaj. It givesdaje a shadowsence of a motorcyclemotorno kolo. You learnučiti se
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skupaj, v senci nariše motorno kolo. Nekaj
12:29
something in the sortRazvrsti of thing that I do, whichki
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sem ugotovil pri svojem delu, in sicer
12:32
is there are people out there with a lot of time
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da obstajajo ljudje, ki imajo veliko časa
12:34
on theirnjihovi handsroke.
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na voljo.
12:39
KenKen KnowltonKnowlton does wonderfulČudovito compositekompozit imagesslike, like
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Ken Knowlton ustvarja čudovite sestavljene slike. Kot
12:45
creatingustvarjanje JacquesJacques CousteauCousteau out of seashellsškoljke --
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na primer Jacques Cousteau narejen iz morskih školjk --
12:47
un-retouchedbrez retuširanja seashellsškoljke, but just by rearrangingPrerazporejanje
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nespremenjenih školjk, samo s pravilnim
12:49
them. He did EinsteinEinstein out of dicekocke because, after
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razporejanjem. Einsteina je naredil iz kock, ker je
12:53
all, EinsteinEinstein said, "God does not playigraj dicekocke with
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Einstein nenazadnje rekel, "Bog se ne kocka z vesoljem"
12:56
the universevesolje." BertBert HerzogHerzog out of un-retouchedbrez retuširanja
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Bert Herzog iz nebarvanih
13:01
keyboardsklaviature. Will ShortzShortz, crosswordKrižanka puzzlepuzzle. JohnJohn
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tipkovnic. Will Shortz, križanka.
13:06
CederquistCederquist does these wonderfulČudovito trompetrompe l'oeill'oeil
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John Cederquist ustvarja čudovite trompe l'oeil
13:10
cabinetsomare.
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omare.
13:12
Now, I'm going to skippreskočite aheadnaprej sinceod I'm sortRazvrsti of runningteče
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Zdaj bomo malce preskočili, ker nam zmanjkuje časa.
13:14
[behindzadaj]. I want to showshow you quicklyhitro what I've
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Na hitro vam bom pokazal,
13:17
createdustvarjeno, some newnovo typetip of illusionsiluzije. I've doneKončano
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kaj sem ustvaril. Nekaj novih vrst iluzij.
13:22
something with takingjemanje the Pixar-typePixar tipa illusionsiluzije. So
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Naredil sem nekaj iluzij tipa Pixar.
13:26
you see these kidsotroci the sameenako sizevelikost here, runningteče
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Ta dva otroka sta enako velika. Tečeta
13:30
down the halldvorana. The two tablemizo topsvrhovi of the sameenako sizevelikost.
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po hodniku. Ti dve mizi sta enako veliki.
13:33
They're looking out two directionsnavodila at onceenkrat. You
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Gledata istočasno v različne smeri.
13:37
have a largervečje piecekos fittingopremljanje in with a smallermanjši. And
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Večji kos gre v manjšega.
13:44
that's something for you to think about, all
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To vam da misliti, kajne?
13:46
right? So you see largervečje pieceskosov fittingopremljanje in withinznotraj
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Zares vidite večji kos, ki gre lahko
13:48
smallermanjši pieceskosov here. Does everyonevsi see that? WhichKi
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v manjšega tukaj. Vsi vidite to? Kar je
13:52
is impossiblenemogoče. You can see the two kidsotroci are
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seveda nemogoče. Tukaj vidimo dva otroka,
13:57
looking out simultaneouslyhkrati out of two differentdrugačen
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ki sta istočasno obrnjena v dve
13:59
directionsnavodila at onceenkrat. Now can you believe these two
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različni smeri. Ali lahko verjamete, da sta
14:06
tablemizo topsvrhovi are the sameenako sizevelikost and shapeobliko? They are.
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ti dve mizi res enake velikosti in oblike? Sta.
14:10
So, if you measuredmerjeno them, they would be. And as I say,
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Če bi jih izmerili, bi videli. Kot rečeno,
14:16
those two figuresštevilke are identicalenako in sizevelikost and shapeobliko.
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identični velikosti in obliki.
14:22
And it's interestingzanimivo, by doing this in this sortRazvrsti
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Zanimivo je, kako so z uporabo računalniške risarske tehnike,
14:26
of renderedopravljene fashionmoda, how much strongermočnejši the
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te iluzije še močnejše.
14:29
illusionsiluzije are. Any caseprimera, I hopeupanje this has broughtprinesel
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Kakorkoli že, upam, da so prinesle
14:31
you a little joyveselje and happinesssreča, and if you're
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vsaj nekaj veselja in sreče.
14:33
interestedzainteresirani in seeingvidenje more coolkul effectsučinke, see me
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Če želite videti še več iluzij,
14:36
outsidezunaj. I'd be happyvesel to showshow you lots of things.
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me poiščite zunaj. Z veseljem vam pokažem še več.
Translated by Matej Golob
Reviewed by Janja Sterle

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ABOUT THE SPEAKER
Al Seckel - Master of visual illusions
Al Seckel explored how eye tricks can reveal the way the brain processes visual information -- or fails to do so. Among his other accomplishments: He co-created the Darwin Fish.

Why you should listen

Al Seckel took great delight in visual illusions and the brain mechanics that they reveal. The author of many books and articles, he also designed interactive museum exhibits around the world that allow visitors to play with illusions and understand how they work.

A noted lecturer, he was a member of the Edge Foundation, a founder of the Southern California Skeptics, a campaigner against the teaching of creationism in public schools -- and co-creator of the Darwin Fish. Seckel died in 2015. Watch his 2010 talk from TEDxUSC: "[Y]Our Mind's Eye" >>

Note: A previous version of this biography described Seckel as a "cognitive neuroscientist," which was not accurate.

More profile about the speaker
Al Seckel | Speaker | TED.com