TED2011
AnnMarie Thomas: Hands-on science with squishy circuits
AnMari Tomas: Nauka iz prve ruke uz pomoć gnjecavih kola
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U energičnom pregledu na TED U, AnMari Tomas pokazuje kako različiti sastojci plastelina kućne izrade mogu biti korišćeni u prikazivanju mogućnosti električne energije -- uključenjem LED dioda, pokretanjem motora i kako ona prave dizajnere od naših najmlađih.
AnnMarie Thomas - Educator
AnnMarie Thomas works on the playful side of engineering -- using cool tools to teach and help others. Full bio
AnnMarie Thomas works on the playful side of engineering -- using cool tools to teach and help others. Full bio
Double-click the English transcript below to play the video.
00:15
I'm a huge believer in hands-on education.
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Veliki sam ljubitelj edukacije "iz prve ruke".
00:19
But you have to have the right tools.
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Ali za to moramo imati određene alate.
00:21
If I'm going to teach my daughter about electronics,
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Ako želim da učim svoju ćerku o elektronici,
00:24
I'm not going to give her a soldering iron.
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neću joj dati lemilicu.
00:26
And similarly, she finds prototyping boards
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Ili nešto slično tome, pošto su štampane ploče
00:28
really frustrating for her little hands.
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veoma nezgodne za njene male ruke.
00:31
So my wonderful student Sam and I
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Tako da smo moj divni student Sem i ja
00:34
decided to look at the most tangible thing we could think of:
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odlučili da pronađemo najopipljivije stvari kojih smo se setili,
00:36
Play-Doh.
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testo za igru (plastelin kućne izrade).
00:38
And so we spent a summer
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I tako smo proveli leto
00:40
looking at different Play-Doh recipes.
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tražeći različite recepte za plastelin.
00:42
And these recipes probably look really familiar
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Ovi recepti verovatno izgledaju veoma poznato
00:44
to any of you who have made homemade play-dough --
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za bilo koga od vas ko je pravio plastelin kućne izrade --
00:46
pretty standard ingredients you probably have in your kitchen.
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standardnih sastojaka koje verovatno imate u vašoj kuhinji.
00:49
We have two favorite recipes --
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Imamo dva omiljena recepta --
00:51
one that has these ingredients
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jedan koji ima sledeće sastojke
00:53
and a second that had sugar instead of salt.
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i drugi koji ima šećer umesto soli.
00:55
And they're great. We can make great little sculptures with these.
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I oni su super. Možemo praviti sjajne male figurice sa njima.
00:58
But the really cool thing about them is when we put them together.
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Ali ono što je super kod njih događa se kad ih spojimo zajedno.
01:01
You see that really salty Play-Doh?
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Vidite, plastelin sa puno soli,
01:03
Well, it conducts electricity.
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on provodi struju.
01:05
And this is nothing new.
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I to nije ništa novo.
01:07
It turns out that regular Play-Doh that you buy at the store conducts electricity,
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Ispostavlja se da plastelin koji kupujete u prodavnici provodi struju,
01:09
and high school physics teachers have used that for years.
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i srednjoškolski nastavnici fizike to koriste godinama.
01:12
But our homemade play-dough
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Ali naš plastelin kućne izrade
01:14
actually has half the resistance of commercial Play-Doh.
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ustvari ima upola manje otpornosti od komercijalnog plastelina.
01:16
And that sugar dough?
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A plastelin pravljen sa šećerom?
01:18
Well it's 150 times more resistant to electric current
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Pa on je 150 puta otporniji na električnu struju
01:20
than that salt dough.
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od plastelina pravljenog od soli.
01:22
So what does that mean?
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I šta to znači?
01:24
Well it means if you them together you suddenly have circuits --
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To znači da ako ih spojite zajedno dobijate kolo --
01:27
circuits that the most creative, tiny, little hands
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kola koja najkreativnije male ruke
01:30
can build on their own.
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mogu same da stvore.
01:33
(Applause)
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(Aplauz)
01:38
And so I want to do a little demo for you.
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Htela bi da vam prikažem mali demo.
01:42
So if I take this salt dough,
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Ako uzmem ovaj plastelin pravljen od soli --
01:44
again, it's like the play-dough you probably made as kids,
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opet govorim, ovo je verovatno plastelin koji ste pravili kao deca --
01:46
and I plug it in --
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I kad ga priključim
01:48
it's a two-lead battery pack, simple battery pack,
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u jednostavno pakovanje baterija koje --
01:51
you can buy them at Radio Shack
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možete ih kupiti u prodavnici uređaja
01:53
and pretty much anywhere else --
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ili čak bilo gde
01:55
we can actually then
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onda ustvari
01:58
light things up.
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dobijamo svetlost.
02:02
But if any of you have studied electrical engineering,
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Ako je neko od vas studirao elektroniku, zna
02:04
we can also create a short circuit.
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da takođe možemo napraviti kratak spoj.
02:06
If I push these together, the light turns off.
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Ako ih spojim, svetlo će se ugasiti.
02:09
Right, the current wants to run through the play-dough, not through that LED.
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U redu, struja želi da prođe kroz plastelin, a ne kroz LED diodu.
02:11
If I separate them again, I have some light.
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Ako ih odvojim, opet će raditi.
02:13
Well now if I take that sugar dough,
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I sad ako uzmem plastelin pravljen od šećera,
02:15
the sugar dough doesn't want to conduct electricity.
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a šećer ne provodi struju.
02:17
It's like a wall to the electricity.
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Ponaša se kao zid za struju.
02:19
If I place that between, now all the dough is touching,
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Ako ga stavim između, tako da se svi plastelini dodiruju,
02:22
but if I stick that light back in,
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i ako opet priključim bateriju,
02:24
I have light.
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imam svetlo.
02:26
In fact, I could even add some movement to my sculptures.
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Ustvari, mogla bih da dodam pokret mojim skulpturama.
02:29
If I want a spinning tail, let's grab a motor,
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Ako želim da dodam motor, mogu da ga dodam,
02:31
put some play-dough on it, stick it on
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staviću malo plastelina na njega, priključiću ga
02:34
and we have spinning.
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i motor se pokreće.
02:36
(Applause)
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(Aplauz)
02:40
And once you have the basics,
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Kada naučite osnove,
02:42
we can make a slightly more complicated circuit.
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možete praviti malo komplikovanija kola.
02:44
We call this our sushi circuit. It's very popular with kids.
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Ovo zovemo suši kolo. Veoma je popularno kod dece.
02:47
I plug in again the power to it.
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Opet ću da ga uključim.
02:50
And now I can start talking about parallel and series circuits.
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Sada već mogu pričati o paralernim i serijskim krugovima.
02:53
I can start plugging in lots of lights.
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Mogu priključivati mnogo više dioda.
02:58
And we can start talking about things like electrical load.
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Možemo pričati čak i o električnom opterećenju.
03:01
What happens if I put in lots of lights
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Šta se dešava kad postavim puno LED dioda
03:03
and then add a motor?
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i onda dodam motor?
03:05
It'll dim.
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Radiće.
03:07
We can even add microprocessors
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Možemo dodati čak i mikroprocesore
03:10
and have this as an input
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i imati ovo kao izvor
03:12
and create squishy sound music that we've done.
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i kreirati mnogo kompleksnija kola.
03:15
You could do parallel and series circuits
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Možete praviti paralelna i serijska kola
03:17
for kids using this.
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za decu.
03:20
So this is all in your home kitchen.
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Dakle, ovo je sve u vašoj kuhinji.
03:23
We've actually tried to turn it into an electrical engineering lab.
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Koju smo pokušali da pretvorimo u električnu laboratoriju.
03:26
We have a website, it's all there. These are the home recipes.
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Imamo i web sajt, sve je tamo. Ovo su kućni recepti.
03:29
We've got some videos. You can make them yourselves.
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Imamo i video klipove. Možete ih sami praviti.
03:31
And it's been really fun since we put them up to see where these have gone.
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Bilo je zabavno od kad smo ih postavili da vidimo dokle smo dogurali.
03:34
We've had a mom in Utah who used them with her kids,
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Jedna majka u Juti koristi ih sa svojom decom
03:36
to a science researcher in the U.K.,
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pa čak i naučnik u Ujedinjenom Kraljevstvu
03:38
and curriculum developers in Hawaii.
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i programer na Havajima.
03:41
So I would encourage you all to grab some Play-Doh,
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Tako da vas ohrarujem da uzmete plastelin,
03:43
grab some salt, grab some sugar and start playing.
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malo soli, brašna i šećera i počnete da se igrate.
03:46
We don't usually think of our kitchen as an electrical engineering lab
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Ne razmišljamo o kuhinji kao o laboratoriji električnog inžinjeringa
03:49
or little kids as circuit designers,
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ili o maloj deci kao dizajnerima kola,
03:51
but maybe we should.
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ali bi možda trebalo.
03:53
Have fun. Thank you.
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Uživajte. Hvala.
03:55
(Applause)
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(Aplauz)
ABOUT THE SPEAKER
AnnMarie Thomas - EducatorAnnMarie Thomas works on the playful side of engineering -- using cool tools to teach and help others.
Why you should listen
AnnMarie Thomas joined the faculty of the University of St. Thomas in the fall of 2006. Previously, she was a faculty member at Art Center College of Design. She is the director of the UST Design laboratory and leads a team of students looking at both the playful side of engineering (squishy circuits for students, the science of circus, toy design) and ways to use engineering design to help others (projects in technology design for older adults). Thomas, in partnership with collaborator Jan Hansen, is co-director of the University of St. Thomas Center for Pre-Collegiate Engineering Education (CPCEE).
Thomas teaches Engineering Graphics, Machine Design, Dynamics (with Circus Lab), Toy Design, Product Design for an Aging Population, and Brain Machine Interfaces (seminar). She organizes the School of Engineering Design Night (featuring the ENGR320 Machine Design competition), and the Design Discussions seminar series.
Thomas has also worked on underwater robotics (at MIT, Caltech and the Monterey Bay Aquarium Research Institute), specializing in biologically inspired propulsion. She has consulted on projects ranging from the design/creation of a "musical earthquake-playing robot" to the initial research for a book on earthquakes in Los Angeles. At Caltech, she founded the Caltech Robotics Outreach Group (CROG) and the Caltech/JPL/LEGO Middle School Robotics Conference.
Get the recipes for the two squishy circuits play doughs here >>
AnnMarie Thomas | Speaker | TED.com