AnnMarie Thomas: Hands-on science with squishy circuits

121,255 views ・ 2011-04-04

TED


μ•„λž˜ μ˜λ¬Έμžλ§‰μ„ λ”λΈ”ν΄λ¦­ν•˜μ‹œλ©΄ μ˜μƒμ΄ μž¬μƒλ©λ‹ˆλ‹€.

λ²ˆμ—­: Su Jeong Han κ²€ν† : J J LEE
00:15
I'm a huge believer in hands-on education.
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μ €λŠ” μ²΄ν—˜ ꡐ윑의 μ—΄λ ¬ν•œ μ‹ λ΄‰μžμž…λ‹ˆλ‹€.
00:19
But you have to have the right tools.
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ν•˜μ§€λ§Œ μ•Œλ§žμ€ 도ꡬ가 μžˆμ–΄μ•Όλ§Œ ν•©λ‹ˆλ‹€.
00:21
If I'm going to teach my daughter about electronics,
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μ œκ°€ λ”Έμ—κ²Œ μ „μžμž₯μΉ˜μ— λŒ€ν•΄ κ°€λ₯΄μΉ˜λ € ν•œλ‹€λ©΄,
00:24
I'm not going to give her a soldering iron.
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λ”Έμ—κ²Œ λ‚©λ•œ 인두λ₯Ό μ£Όμ§€λŠ” μ•Šμ„ κ²ƒμž…λ‹ˆλ‹€.
00:26
And similarly, she finds prototyping boards
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λ§ˆμ°¬κ°€μ§€λ‘œ 딸이 ν”„λ‘œν† νƒ€μž…λ³΄λ“œλ₯Ό λ§ˆλ ¨ν•œλ‹€λ©΄,
00:28
really frustrating for her little hands.
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κ·Έ 고사리 같은 μ†μ—λŠ” 맀우 νž˜λ“€ κ²ƒμž…λ‹ˆλ‹€.
00:31
So my wonderful student Sam and I
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κ·Έλž˜μ„œ 제 ν›Œλ₯­ν•œ 학생인 μƒ˜κ³Ό μ €λŠ”
00:34
decided to look at the most tangible thing we could think of:
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μš°λ¦¬κ°€ 생각할 수 μžˆλŠ” κ°€μž₯ μ‹€μ œμ μΈ 것을 찾기둜 ν–ˆμŠ΅λ‹ˆλ‹€.
00:36
Play-Doh.
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λ°”λ‘œ κ³΅μž‘μš© μ ν† μž…λ‹ˆλ‹€.
00:38
And so we spent a summer
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μš°λ¦¬λŠ” μ—¬λŸ¬κ°€μ§€ κ³΅μž‘μš© μ ν† μ˜
00:40
looking at different Play-Doh recipes.
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μ‚¬μš© λ°©μ•ˆμ„ 찾으며 여름을 λ³΄λƒˆμŠ΅λ‹ˆλ‹€.
00:42
And these recipes probably look really familiar
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μ§‘μ—μ„œ κ³΅μž‘μš© 점토λ₯Ό λ§Œλ“€μ–΄λ³Έ 뢄이라면
00:44
to any of you who have made homemade play-dough --
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μ•„λ§ˆλ„ 이 μ‚¬μš© λ°©μ•ˆλ“€μ΄ 정말 μ΅μˆ™ν•  κ²ƒμž…λ‹ˆλ‹€.
00:46
pretty standard ingredients you probably have in your kitchen.
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μ—¬λŸ¬λΆ„μ˜ 주방에 μžˆλŠ” μ•„μ£Ό 일반적인 μž¬λ£Œλ“€μΌ κ²ƒμž…λ‹ˆλ‹€.
00:49
We have two favorite recipes --
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μš°λ¦¬κ°€ μ„ ν˜Έν•˜λŠ” 두 가지 λ°©μ•ˆμ΄ μžˆμŠ΅λ‹ˆλ‹€.
00:51
one that has these ingredients
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ν•˜λ‚˜λŠ” λ³΄μ‹œλŠ” 이런 μž¬λ£Œλ“€μ„ μ‚¬μš©ν•˜λŠ” 것이고,
00:53
and a second that had sugar instead of salt.
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λ‹€λ₯Έ ν•˜λ‚˜λŠ” μ†ŒκΈˆ λŒ€μ‹  섀탕을 μ‚¬μš©ν•˜λŠ” κ²ƒμž…λ‹ˆλ‹€.
00:55
And they're great. We can make great little sculptures with these.
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λŒ€λ‹¨ν•˜μ£ . μ΄κ²ƒλ“€λ‘œ ν›Œλ₯­ν•œ μž‘μ€ μž‘ν’ˆμ„ λ§Œλ“€ 수 μžˆμŠ΅λ‹ˆλ‹€.
00:58
But the really cool thing about them is when we put them together.
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ν•˜μ§€λ§Œ μ§„μ§œ 멋진 것은 μš°λ¦¬κ°€ 그것듀을 합쳐놨을 λ•Œμž…λ‹ˆλ‹€.
01:01
You see that really salty Play-Doh?
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μ—¬λŸ¬λΆ„μ€ μ†ŒκΈˆκΈ°κ°€ μžˆλŠ” 점토가
01:03
Well, it conducts electricity.
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μ „κΈ°λ₯Ό 잘 μ „λ„ν•˜λŠ” 것을 μ••λ‹ˆλ‹€.
01:05
And this is nothing new.
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이것은 μ „ν˜€ μƒˆλ‘œμš΄ 것이 μ•„λ‹™λ‹ˆλ‹€.
01:07
It turns out that regular Play-Doh that you buy at the store conducts electricity,
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μƒμ μ—μ„œ ꡬ맀할 수 μžˆλŠ” λ³΄ν†΅μ˜ 점토가 μ „κΈ°λ₯Ό μ „λ„ν•œλ‹€κ³  λ°ν˜€μ‘Œκ³ ,
01:09
and high school physics teachers have used that for years.
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고등학ꡐ 물리 ꡐ사듀은 수 λ…„κ°„ 이것을 μ΄μš©ν•΄μ™”μŠ΅λ‹ˆλ‹€.
01:12
But our homemade play-dough
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ν•˜μ§€λ§Œ μš°λ¦¬κ°€ μ§‘μ—μ„œ λ§Œλ“  μ ν† λŠ”
01:14
actually has half the resistance of commercial Play-Doh.
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νŒλ§€ν•˜λŠ” 점토 μ €ν•­μ˜ μ ˆλ°˜λ§Œμ„ 가지고 μžˆμŠ΅λ‹ˆλ‹€.
01:16
And that sugar dough?
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그리고 섀탕 μ ν† λŠ” μ–΄λ–¨κΉŒμš”?
01:18
Well it's 150 times more resistant to electric current
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섀탕 μ ν† λŠ” μ†ŒκΈˆ 점토보닀 150λ°° μ΄μƒμ˜
01:20
than that salt dough.
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μ „λ₯˜μ— λŒ€ν•œ 저항을 가지고 μžˆμŠ΅λ‹ˆλ‹€.
01:22
So what does that mean?
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그것은 무엇을 μ˜λ―Έν• κΉŒμš”?
01:24
Well it means if you them together you suddenly have circuits --
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κ·Έ 점토듀을 ν•©ν•΄μ„œ 회둜λ₯Ό λ§Œλ“€ 수 μžˆλ‹€λŠ” 것을 μ˜λ―Έν•©λ‹ˆλ‹€.
01:27
circuits that the most creative, tiny, little hands
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이 μ‘°λ§‰λ§Œν•œ μ†μœΌλ‘œ κ°€μž₯ 창쑰적인 μžμ‹ λ§Œμ˜
01:30
can build on their own.
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회둜λ₯Ό λ§Œλ“€ 수 μžˆλŠ” κ²ƒμž…λ‹ˆλ‹€.
01:33
(Applause)
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(λ°•μˆ˜)
01:38
And so I want to do a little demo for you.
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자, μ—¬λŸ¬λΆ„κ»˜ κ°„λ‹¨ν•œ 데λͺ¨λ₯Ό λ³΄μ—¬λ“œλ¦¬κ² μŠ΅λ‹ˆλ‹€.
01:42
So if I take this salt dough,
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μ œκ°€ 이 μ†ŒκΈˆ 점토λ₯Ό 가지고
01:44
again, it's like the play-dough you probably made as kids,
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λ‹€μ‹œ λ§ν•˜μ§€λ§Œ, μ—¬λŸ¬λΆ„μ΄ μ–΄λ¦΄λ•Œ 가지고 λ†€μ•˜μ„ 점토와 같은 κ²ƒμž…λ‹ˆλ‹€.
01:46
and I plug it in --
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이것을 꼽아보죠.
01:48
it's a two-lead battery pack, simple battery pack,
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이것은 λ‹¨μˆœν•œ λ‚© μΆ•μ „μ§€μž…λ‹ˆλ‹€.
01:51
you can buy them at Radio Shack
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RadioShack(μ „μžμž₯치 νŒλ§€μ—…μ²΄)λ‚˜
01:53
and pretty much anywhere else --
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λ‹€λ₯Έ κ³³ μ–΄λ””μ„œλ“  ꡬ할 μˆ˜κ°€ μžˆμŠ΅λ‹ˆλ‹€.
01:55
we can actually then
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그리고 λ‚˜μ„œ μ‹€μ œλ‘œ
01:58
light things up.
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뢈이 λ“€μ–΄μ˜€κ²Œ ν•  수 μžˆμŠ΅λ‹ˆλ‹€.
02:02
But if any of you have studied electrical engineering,
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μ—¬λŸ¬λΆ„ 쀑에 전기곡학을 κ³΅λΆ€ν•˜μ‹  뢄이 μžˆλ‹€λ©΄,
02:04
we can also create a short circuit.
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단락을 λ§Œλ“€ μˆ˜λ„ μžˆμŠ΅λ‹ˆλ‹€.
02:06
If I push these together, the light turns off.
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점토듀을 λΆ™μ—¬ λ†“μœΌλ©΄, λΆˆμ€ κΊΌμ§‘λ‹ˆλ‹€.
02:09
Right, the current wants to run through the play-dough, not through that LED.
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λ§žμŠ΅λ‹ˆλ‹€. μ „λ₯˜λŠ” LED λ₯Ό ν†΅ν•΄μ„œκ°€ μ•„λ‹ˆλΌ 점토λ₯Ό ν†΅ν•΄μ„œ νλ¦…λ‹ˆλ‹€.
02:11
If I separate them again, I have some light.
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λ‹€μ‹œ λΆ„λ¦¬ν•˜λ©΄, 뢈이 μΌœμ§€μ£ .
02:13
Well now if I take that sugar dough,
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자, 이제 섀탕 μ ν† λ‘œ 해보면,
02:15
the sugar dough doesn't want to conduct electricity.
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섀탕 μ ν† λŠ” μ „κΈ°λ₯Ό μ „λ„ν•˜μ§€ μ•ŠμœΌλ €κ³  ν•©λ‹ˆλ‹€.
02:17
It's like a wall to the electricity.
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μ „κΈ°μ—κ²Œ λ²½κ³Ό κ°™μŠ΅λ‹ˆλ‹€.
02:19
If I place that between, now all the dough is touching,
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두 점토 사이에 μœ„μΉ˜μ‹œν‚€λ©΄, λͺ¨λ“  점토듀이 λ§žλ‹Ώμ•„ 있죠.
02:22
but if I stick that light back in,
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ν•˜μ§€λ§Œ 전ꡬλ₯Ό λ‹€μ‹œ κ½‚μœΌλ©΄
02:24
I have light.
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뢈이 μΌœμ§‘λ‹ˆλ‹€.
02:26
In fact, I could even add some movement to my sculptures.
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사싀, 제 μž‘ν’ˆμ— μ›€μ§μž„λ„ λ„£μ–΄λ³Ό 수 μžˆμŠ΅λ‹ˆλ‹€.
02:29
If I want a spinning tail, let's grab a motor,
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νšŒμ „ν•˜λŠ” 꼬리λ₯Ό μ›ν•˜λ©΄, λͺ¨ν„°λ₯Ό κ°€μ Έμ™€μ„œ
02:31
put some play-dough on it, stick it on
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κ·Έ λͺ¨ν„°μ— 점토λ₯Ό 올리고, λΆ™μž…λ‹ˆλ‹€.
02:34
and we have spinning.
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그러면 μ΄λ ‡κ²Œ λŒμ•„κ°‘λ‹ˆλ‹€.
02:36
(Applause)
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(λ°•μˆ˜)
02:40
And once you have the basics,
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일단 κΈ°μ΄ˆκ°€ μžˆλ‹€λ©΄,
02:42
we can make a slightly more complicated circuit.
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μ’€ 더 λ³΅μž‘ν•œ 회둜λ₯Ό λ§Œλ“€μˆ˜λ„ μžˆμŠ΅λ‹ˆλ‹€.
02:44
We call this our sushi circuit. It's very popular with kids.
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μ €ν¬λŠ” 이것을 초λ°₯ 회둜라고 λΆ€λ¦…λ‹ˆλ‹€. μ•„μ΄λ“€μ—κ²Œ μ•„μ£Ό 인기이죠.
02:47
I plug in again the power to it.
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λ‹€μ‹œ μ—°κ²°ν•˜κ³  전원을 λ„£μŠ΅λ‹ˆλ‹€.
02:50
And now I can start talking about parallel and series circuits.
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이제 병렬과 직렬 νšŒλ‘œμ— λŒ€ν•΄ 말할 수 μžˆκ² λ„€μš”.
02:53
I can start plugging in lots of lights.
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μ—¬λŸ¬κ°œμ˜ 전ꡬ듀을 μ—°κ²°ν•  수 μžˆμŠ΅λ‹ˆλ‹€.
02:58
And we can start talking about things like electrical load.
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그리고 μ „κΈ° λΆ€ν•˜ 같은 것듀을 이야기 ν•  수 μžˆμ„ κ²ƒμž…λ‹ˆλ‹€.
03:01
What happens if I put in lots of lights
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μ—¬λŸ¬κ°œμ˜ 전ꡬλ₯Ό μ—°κ²°ν•˜λ©΄ μ–΄λ–»κ²Œ λ κΉŒμš”?
03:03
and then add a motor?
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그리고 λͺ¨ν„°λ₯Ό μΆ”κ°€ν•˜λ©΄μš”?
03:05
It'll dim.
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빛이 νλ¦Ών•΄μ§ˆ κ²ƒμž…λ‹ˆλ‹€.
03:07
We can even add microprocessors
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마이크둜 ν”„λ‘œμ„Έμ„œλ₯Ό μΆ”κ°€ν•˜μ—¬
03:10
and have this as an input
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μž…λ ₯μž₯치둜 μ‚¬μš©ν•˜κ³ ,
03:12
and create squishy sound music that we've done.
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μ§ˆν½κ±°λ¦¬λŠ” μ†Œλ¦¬λ₯Ό λ§Œλ“€μ–΄ λƒ…λ‹ˆλ‹€.
03:15
You could do parallel and series circuits
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아이듀이 이것을 μ‚¬μš©ν•  수 μžˆλ„λ‘ 병렬과
03:17
for kids using this.
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직렬 νšŒλ‘œλ“€μ„ ꡬ성할 수 μžˆμŠ΅λ‹ˆλ‹€.
03:20
So this is all in your home kitchen.
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자, 이것은 λͺ¨λ‘ μ—¬λŸ¬λΆ„ 집 λΆ€μ—Œμ— μžˆμŠ΅λ‹ˆλ‹€.
03:23
We've actually tried to turn it into an electrical engineering lab.
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μš°λ¦¬λŠ” λΆ€μ—Œμ„ 전기곡학 μ‹€ν—˜μ‹€λ‘œ λ§Œλ“€μ–΄λ³΄λ €κ³  ν–ˆμŠ΅λ‹ˆλ‹€.
03:26
We have a website, it's all there. These are the home recipes.
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우리 μ›Ήμ‚¬μ΄νŠΈμ— μ „λΆ€ μžˆμŠ΅λ‹ˆλ‹€. κ°€μ •μ—μ„œμ˜ μ‚¬μš© λ°©μ•ˆμ΄μ£ .
03:29
We've got some videos. You can make them yourselves.
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μ›Ήμ‚¬μ΄νŠΈμ—λŠ” λ™μ˜μƒλ„ μžˆμŠ΅λ‹ˆλ‹€. μ—¬λŸ¬λΆ„μ΄ 슀슀둜 λ§Œλ“€μ–΄ λ³Ό 수 있죠.
03:31
And it's been really fun since we put them up to see where these have gone.
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이것이 어디에 쓰일지 보렀고 λ™μ˜μƒμ„ μ˜¬λ €λ†“μ€ μ΄ν›„λ‘œ 정말 μ¦κ±°μ› μŠ΅λ‹ˆλ‹€.
03:34
We've had a mom in Utah who used them with her kids,
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아이듀과 ν•¨κ»˜ 그것을 ν™œμš©ν•œ μœ νƒ€μ£Όμ˜ ν•œ μ–΄λ¨Έλ‹ˆλŠ”
03:36
to a science researcher in the U.K.,
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그것을 영ꡭ의 ν•œ κ³Όν•™ 연ꡬ원과
03:38
and curriculum developers in Hawaii.
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ν•˜μ™€μ΄μ˜ κ΅μœ‘κ³Όμ • κ°œλ°œμžλ“€μ—κ²Œ λ³΄λƒˆμŠ΅λ‹ˆλ‹€.
03:41
So I would encourage you all to grab some Play-Doh,
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μ €λŠ” μ—¬λŸ¬λΆ„ λͺ¨λ‘κ°€ 점토λ₯Ό μ‚¬μš©ν•΄λ³΄κΈ°λ₯Ό κΆŒν•©λ‹ˆλ‹€.
03:43
grab some salt, grab some sugar and start playing.
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μ†ŒκΈˆ 쑰금, 섀탕 μ‘°κΈˆμ„ 가지고 놀이λ₯Ό μ‹œμž‘ν•΄λ³΄μ„Έμš”.
03:46
We don't usually think of our kitchen as an electrical engineering lab
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일반적으둜 우리 λΆ€μ—Œμ„ 전기곡학 μ‹€ν—˜μ‹€μ΄λΌκ³  μƒκ°ν•˜κ±°λ‚˜
03:49
or little kids as circuit designers,
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아이듀을 회둜 λ””μžμ΄λ„ˆλ‘œ μƒκ°ν•˜μ§€λŠ” μ•ŠμŠ΅λ‹ˆλ‹€.
03:51
but maybe we should.
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ν•˜μ§€λ§Œ μ–΄μ©Œλ©΄ κ·Έλ ‡κ²Œ 생각해야 할지도 λͺ¨λ¦…λ‹ˆλ‹€.
03:53
Have fun. Thank you.
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μ¦κ²¨λ³΄μ„Έμš”. κ°μ‚¬ν•©λ‹ˆλ‹€.
03:55
(Applause)
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(λ°•μˆ˜)
이 μ›Ήμ‚¬μ΄νŠΈ 정보

이 μ‚¬μ΄νŠΈλŠ” μ˜μ–΄ ν•™μŠ΅μ— μœ μš©ν•œ YouTube λ™μ˜μƒμ„ μ†Œκ°œν•©λ‹ˆλ‹€. μ „ 세계 졜고의 μ„ μƒλ‹˜λ“€μ΄ κ°€λ₯΄μΉ˜λŠ” μ˜μ–΄ μˆ˜μ—…μ„ 보게 될 κ²ƒμž…λ‹ˆλ‹€. 각 λ™μ˜μƒ νŽ˜μ΄μ§€μ— ν‘œμ‹œλ˜λŠ” μ˜μ–΄ μžλ§‰μ„ 더블 ν΄λ¦­ν•˜λ©΄ κ·Έκ³³μ—μ„œ λ™μ˜μƒμ΄ μž¬μƒλ©λ‹ˆλ‹€. λΉ„λ””μ˜€ μž¬μƒμ— 맞좰 μžλ§‰μ΄ μŠ€ν¬λ‘€λ©λ‹ˆλ‹€. μ˜κ²¬μ΄λ‚˜ μš”μ²­μ΄ μžˆλŠ” 경우 이 문의 양식을 μ‚¬μš©ν•˜μ—¬ λ¬Έμ˜ν•˜μ‹­μ‹œμ˜€.

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