The surprising (and invisible) signatures of sea creatures - Kakani Katija

147,616 views ・ 2016-01-07

TED-Ed


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

λ²ˆμ—­: Katherine Cho κ²€ν† : Joowon Lee
00:06
So my name is Kakani Katija, and I'm a bioengineer.
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제 이름은 μΉ΄μΉ΄λ‹ˆ μΉ΄νŠΈμ§€μ•„κ³ , μ €λŠ” 생물 κ³΅ν•™μžμž…λ‹ˆλ‹€.
00:10
I study marine organisms in their natural environment.
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μ €λŠ” μžμ—° μƒνƒœκ³„μ— μžˆλŠ” ν•΄μ–‘ 생물듀을 μ—°κ΅¬ν•©λ‹ˆλ‹€.
00:14
And what I want to point out,
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그리고 μ œκ°€ λ§ν•˜κ³ μž ν•˜λŠ” 것은
00:15
and at least you can see this in this visualization,
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μ—¬κΈ°μ„œ 보싀 수 μžˆκ² μ§€λ§Œ
00:18
is that the ocean environment is a dynamic place.
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ν•΄μ–‘ μƒνƒœκ³„λŠ”μ—­λ™μ μΈ κ³³μž…λ‹ˆλ‹€.
00:21
What you're seeing are the kinds of currents,
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μ§€κΈˆ μ—¬κΈ° λ³΄μ‹œλŠ” 것은
00:23
as well as the whirls,
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νŒŒλ„λ‚˜ λ°”λžŒμ— μ˜ν•΄ 바닀에 λ‚¨κ²¨μ§€λŠ”
00:25
that are left behind in the ocean because of tides
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ν•΄λ₯˜μ˜ μ’…λ₯˜λ“€,
00:27
or because of winds.
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그리고 λΉ™λΉ™ λ„λŠ” κ²ƒλ“€μž…λ‹ˆλ‹€.
00:29
And imagine a marine organism as living in this environment,
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ν•΄μ–‘ 생물이 이 ν™˜κ²½μ—μ„œ μ‚¬λŠ” 것을 상상해보면
00:32
and they're trying to undergo their entire lives
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이런 ν•΄λ₯˜λ₯Ό κ²¬λŽŒλ‚΄λ©΄μ„œ
00:34
while dealing with currents like these.
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평생을 μ‚½λ‹ˆλ‹€.
00:37
But what I also want to point out
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그런데 μ œκ°€ 또 λ§ν•˜κ³ μž ν•˜λŠ” 것은
00:39
is that small organisms also create small fluid motions, as well.
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μž‘μ€ 생물듀도 μž‘μ€ 유체의 μš΄λ™μ„ λ§Œλ“ λ‹€λŠ” κ²λ‹ˆλ‹€.
00:43
And it's these fluid motions that I study.
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μ œκ°€ μ—°κ΅¬ν•˜λŠ” 것이 유체의 μš΄λ™μž…λ‹ˆλ‹€.
00:46
And we can think about them like being footprints.
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μš°λ¦¬λŠ” 이것을 발자ꡭ이라고 생각할 수 μžˆμŠ΅λ‹ˆλ‹€.
00:49
So this is my dog Kieran, and take a look at her footprints.
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이것은 제 개 ν‚€μ—λ Œμ΄κ³ , 이 μ•„μ΄μ˜ λ°œμžκ΅­μ„ ν•œλ²ˆ λ³΄μ„Έμš”.
00:54
Footprints provide a lot of information.
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λ°œμžκ΅­μ€ λ§Žμ€ 정보λ₯Ό μ€λ‹ˆλ‹€.
00:56
Not only do they tell us what kind of organism left them,
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μ–΄λ–€ 생물이 그것을 λ‚¨κ²ΌλŠ”μ§€ 뿐만 μ•„λ‹ˆλΌ
00:59
they might also tell us something about when that organism was there,
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κ·Έ 생물이 μ–Έμ œ 그곳에 μžˆμ—ˆλŠ”μ§€μ— λŒ€ν•΄ μ•Œλ €μ£ΌκΈ°λ„ ν•˜μ§€λ§Œ
01:02
but also what kind of behavior, were they running or were they walking?
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λ›°μ—ˆλŠ”μ§€, κ±Έμ—ˆλŠ”μ§€ λ“± μ–΄λ–€ 행동을 ν•˜κ³  μžˆμ—ˆλŠ”μ§€λ„ μ•Œλ €μ€λ‹ˆλ‹€.
01:06
And so terrestrial organisms, like my cute dog Kieran,
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제 κ·€μ—¬μš΄ ν‚€μ—λ Œ 같은 μœ‘μƒ 동물듀은
01:09
might be leaving footprints behind in dirt or in sand,
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ν™μ΄λ‚˜ λͺ¨λž˜μ— λ°œμžκ΅­μ„ 남기고 μžˆμ„ μˆ˜λ„ μžˆμ§€λ§Œ
01:14
but marine organisms leave footprints in the form of what we call wake structures,
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ν•΄μ–‘ 생물듀은 λ°œμžκ΅­μ„ μš°λ¦¬κ°€ ν”νžˆ λ§ν•˜λŠ” '흔적 ꡬ쑰'λ‚˜
01:20
or hydrodynamic signatures,
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유체 μ—­ν•™ ν”μ μ˜ ν˜•νƒœλ₯Ό
01:22
in fluid.
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μ•‘μ²΄λ‘œ λ‚¨κΉλ‹ˆλ‹€.
01:23
Now imagine, it's really hard to see these kinds of structures
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이제 상상해보면 μ•‘μ²΄λŠ” 투λͺ…ν•˜κΈ° λ•Œλ¬Έμ—
01:26
because fluid is transparent.
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이런 ꡬ쑰λ₯Ό λ³΄λŠ” 것이 μ–΄λ ΅μŠ΅λ‹ˆλ‹€.
01:28
However, if we add something to the fluid, we get a completely different picture.
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κ·ΈλŸ¬λ‚˜ 앑체에 무언가 μ²¨κ°€ν•˜λ©΄ μ™„μ „νžˆ λ‹€λ₯Έ 그림이 λ‚˜μ˜΅λ‹ˆλ‹€.
01:33
And you can see that these footprints that marine organisms create
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ν•΄μ–‘ 생물듀이 λ§Œλ“œλŠ” 이런 λ°œμžκ΅­λ“€μ€
01:36
are just dynamic.
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맀우 λŒ€λ‹¨ν•œ 것이죠.
01:38
They are constantly changing.
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λŠμž„μ—†μ΄ λ³€ν•˜κ³  μžˆμŠ΅λ‹ˆλ‹€.
01:40
And marine organisms also have the ability to sense these signatures.
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그리고 ν•΄μ–‘ 생물듀은 이런 흔적듀을 감지할 수 μžˆλŠ” λŠ₯λ ₯이 μžˆμŠ΅λ‹ˆλ‹€.
01:43
They can also inform decisions,
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그듀은 이런 흔적듀을 λ”°λΌκ°ˆμ§€ 말지 λ“±κ³Ό 같이
01:45
like whether or not they want to continue following a signature like this
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선택듀을 μ•Œλ €μ£Όμ–΄
01:49
to find a mate or to find food,
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μ§μ΄λ‚˜ 먹이λ₯Ό μ°Ύκ±°λ‚˜
01:51
or maybe avoid these signatures to avoid being eaten.
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μž‘μ•„λ¨Ήνžˆμ§€ μ•ŠκΈ° μœ„ν•΄ μ΄λŸ¬ν•œ 흔적듀을 ν”Όν•  μˆ˜λ„ μžˆμŠ΅λ‹ˆλ‹€.
01:55
So imagine the ability to be able
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그러면 이런 흔적듀을
01:57
to not only see or visualize these kinds of signatures,
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λ³΄κ±°λ‚˜ ν˜•μƒν™”ν•  수 μžˆμ„ 뿐만 μ•„λ‹ˆλΌ
02:01
but to also measure them.
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μΈ‘μ •ν•  수 μžˆλŠ” λŠ₯λ ₯이 μžˆλ‹€κ³  상상해 λ³΄μ„Έμš”.
02:03
This is the engineering side of what I do.
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이것이 μ œκ°€ κ³΅ν•™μ μœΌλ‘œ 맑고 μžˆλŠ” λΆ€λΆ„μž…λ‹ˆλ‹€.
02:06
And so what I've done is I actually took a laboratory technique
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μ €λŠ” μ‹€μ œ 연ꡬ κΈ°μˆ μ„
02:10
and miniaturized it and basically shrunk it down
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λ¬Όμ†μ˜ 주택 μ‚¬μš©μœΌλ‘œ
μ΅œμ†Œν™”μ‹œν‚€κ³  기본적으둜 μ€„μ—¬μ„œ
02:13
into the use of underwater housings
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02:16
to make a device that a single scuba diver can use.
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μŠ€μΏ λ²„ 닀이버 ν•œ λͺ…이 μ‚¬μš©ν•  수 μžˆλŠ” μž₯치λ₯Ό λ§Œλ“€μ—ˆμŠ΅λ‹ˆλ‹€.
02:19
And so a single scuba diver can go anywhere from the surface to 40 meters,
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κ·Έλ¦¬ν•˜μ—¬ ν•œ λͺ…μ˜ μŠ€μΏ λ²„ 닀이버가
생물듀이 λ§Œλ“œλŠ” 유체 μ—­ν•™μ˜ 흔적듀을 재기 μœ„ν•΄
02:24
or 120 feet deep,
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02:25
to measure the hydrodynamic signatures that organisms create.
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μˆ˜λ©΄μœΌλ‘œλΆ€ν„° 4m ν˜Ήμ€ 120mκΉŒμ§€ 갈 수 μžˆμŠ΅λ‹ˆλ‹€.
02:30
Before I begin,
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μ‹œμž‘ν•˜κΈ° 전에
02:31
I want to immerse you into what these kinds of measurements require.
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μ΄λŸ¬ν•œ μΈ‘λŸ‰μ΄ μ–΄λ–€ 것을 μš”κ΅¬ν•˜λŠ”μ§€μ— μ—¬λŸ¬λΆ„μ„ λͺ°λ‘μ‹œν‚€κ³ μž ν•©λ‹ˆλ‹€.
02:36
So in order to work, we actually dive at night,
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μ €ν¬λŠ” μž‘μ—…ν•˜κΈ° μœ„ν•΄μ„œ 밀에 잠수λ₯Ό ν•˜λŠ”λ°
02:39
and this is because we're trying to minimize any interactions
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이것은 λ ˆμ΄μ €μ™€ ν–‡λΉ› μ‚¬μ΄μ˜
μƒν˜Έ μž‘μš©μ„ μ΅œμ†Œν™”ν•˜κΈ° μœ„ν•΄μ„œμ΄κ³ 
02:43
between the laser and sunlight
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02:46
and we're diving in complete darkness
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저희가 μ—°κ΅¬ν•˜κ³ μž ν•˜λŠ” 생물듀을 λ‹¬μ•„λ‚˜κ²Œ ν•˜μ§€ μ•ŠκΈ° μœ„ν•΄
02:48
because we do not want to scare away the organisms we're trying to study.
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μ™„μ „ν•œ μ–΄λ‘ μ†μ—μ„œ ν•˜λŠ” κ²ƒμž…λ‹ˆλ‹€.
02:52
And then once we find the organisms we're interested in,
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그리고 저희가 관심 μžˆλŠ” 생물을 찾으면
02:55
we turn on a green laser.
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μ΄ˆλ‘μƒ‰ λ ˆμ΄μ €λ₯Ό μΌ­λ‹ˆλ‹€.
02:57
And this green laser is actually illuminating a sheet of fluid,
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그리고 이 λ ˆμ΄μ €λŠ” 사싀 앑체 ν•œ 면을 λΉ„μΆ”κ³  있으며
03:01
and in that fluid,
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κ·Έ 앑체 μ†μ—λŠ”
03:02
it's reflecting off of particles that are found everywhere in the ocean.
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λ°”λ‹€μ˜ λͺ¨λ“  κ³³μ—μ„œ λ°œκ²¬λ˜λŠ” μž…μžλ“€μ„ λ°˜μ‚¬ν•˜κ³  μžˆμŠ΅λ‹ˆλ‹€.
03:07
And so as an animal swims through this laser sheet,
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κ·Έλž˜μ„œ 동물이 λ ˆμ΄μ € λ©΄ μ†μœΌλ‘œ ν—€μ—„μΉ˜λ©΄
03:10
you can see these particles are moving over time,
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이 μž…μžλ“€μ΄ μ‹œκ°„μ— 따라 μ›€μ§μ΄λŠ” 것을 λ³Ό 수 있으며
03:13
and so we actually risk our lives to get this kind of data.
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μ €ν¬λŠ” 이 데이터λ₯Ό μ–»κΈ° μœ„ν•΄ λͺ©μˆ¨μ„ κ±°λŠ” κ²ƒμž…λ‹ˆλ‹€.
03:17
What you're going to see
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μ—¬λŸ¬λΆ„μ΄ 보싀 것은
03:18
is that on the left these two particles images
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μ™Όμͺ½μ— 이 두 물질 이미지듀이
03:21
that shows the displacement of fluid over time,
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μ‹œκ°„μ— λ”°λ₯Έ μ•‘μ²΄μ˜ λ³€ν™”λ₯Ό λ³΄μ—¬μ€€λ‹€λŠ” 것이며
03:24
and using that data,
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이 자료λ₯Ό μ‚¬μš©ν•΄μ„œ
03:26
you can actually extract what the velocity of that fluid is,
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κ·Έ μ•‘μ²΄μ˜ 속도가 무엇인지 μΆ”μΆœν•  수 있으며
03:29
and that's indicated by the vector plots that you see in the middle.
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그것은 κ°€μš΄λ°μ— λ³΄μ΄λŠ” 벑터 ν”Œλ‘―μ„ 톡해 ν‘œμ‹œλ©λ‹ˆλ‹€.
03:32
And then we can use that data
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κ·Έλ¦¬κ³ λ‚˜μ„œ κ·Έ 데이터λ₯Ό μ‚¬μš©ν•˜μ—¬
03:34
to answer a variety of different questions,
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λ‹€μ–‘ν•œ μ’…λ₯˜μ˜ μ§ˆλ¬Έλ“€μ„ λ‹΅ν•  수 있으며
03:36
not only to understand the rotational sense of that fluid,
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였λ₯Έμͺ½μ— λ³΄μ΄λŠ”
κ·Έ μ•‘μ²΄μ˜ νšŒμ „ 정도λ₯Ό μ΄ν•΄ν•˜λŠ”λ° 뿐만 μ•„λ‹ˆλΌ
03:39
which you see on the right,
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03:41
but also estimate something about energetics,
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μ—λ„ˆμ§€ν•™, λ˜λŠ” 이런 생물듀과 κ·Έ 앑체와 μž‘μš©ν•˜λŠ” 생물듀에 λŒ€ν•΄
03:44
or the kinds of forces that act on these organisms or on the fluid,
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무언가λ₯Ό μ˜ˆμΈ‘ν•  수 있으며
03:47
and also evaluate swimming and feeding performance.
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수영과 λ¨ΉλŠ” ν–‰μœ„κΉŒμ§€ 평가할 수 μžˆμŠ΅λ‹ˆλ‹€.
03:50
We've used this technique on a variety of different organisms,
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μ €ν¬λŠ” 이 κΈ°μˆ μ„ λ‹€μ–‘ν•œ 생물 쒅에 μ‚¬μš©ν–ˆμ§€λ§Œ
03:53
but remember, there's an issue here.
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μ€‘μš”ν•œ 것은 λ¬Έμ œκ°€ μžˆλ‹€λŠ” κ²ƒμž…λ‹ˆλ‹€.
03:56
We're only able to study organisms that a scuba diver can reach.
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μ €ν¬λŠ” μŠ€μΏ λ²„ 닀이버가 도달할 수 μžˆλŠ” 생물듀 밖에 연ꡬλ₯Ό λͺ»ν•©λ‹ˆλ‹€.
04:00
And so before I finish, I want to tell you what the next frontier is
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κ°•μ˜λ₯Ό 마치기 전에 μ΄λŸ¬ν•œ μΈ‘λŸ‰μ μΈ λ©΄μ—μ„œ
04:04
in terms of these kinds of measurements.
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λ‹€μŒ ν•œκ³„κ°€ 무엇인지 말씀 λ“œλ¦¬κ³ μž ν•©λ‹ˆλ‹€.
04:07
And with collaborators at Monterey Bay Aquarium Research Institute,
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λͺ¬ν…Œλ ˆμ΄ ν•΄μ•ˆ μˆ˜μ‘±κ΄€ 연ꡬ κΈ°κ΄€μ˜ ν˜‘λ ₯μžλ“€κ³Ό ν•¨κ»˜
04:12
we're developing instrumentation to go on remotely opperated vehicles
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원격 μ‘°μ • μš΄μ†‘ μˆ˜λ‹¨μ— νƒ‘μž¬λ  기계 μž₯치λ₯Ό κ°œλ°œν•˜μ—¬
04:16
so we can study organisms anywhere from the surface down to 4000 meters,
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2.5 마일, ν˜Ήμ€ 수면으둜 λΆ€ν„°
ν•΄λ°œ 4,000mκΉŒμ§€μ˜ λͺ¨λ“  생물을 연ꡬ할 수 μžˆλ„λ‘ ν•˜λ €κ³  ν•©λ‹ˆλ‹€.
04:21
or two and a half miles.
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04:23
And so we can answer really interesting questions about this organism,
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κ·Έλ¦¬ν•˜μ—¬ μ €ν¬λŠ” 이런 생물듀에 λŒ€ν•΄ ν₯미둜운 μ§ˆλ¬Έλ“€μ„ λ‹΅ν•  수 있죠,
04:26
this is a larvacean,
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이것은 μœ ν˜•λ₯˜μΈλ°
04:28
that creates a feeding current and forces fluids through their mucus house
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μ΄λŠ” 점앑 집을 톡해 κΆ€μ „μ „λ₯˜μ™€ νž˜μ„ λ§Œλ“€κ³ 
04:33
and extracts nutrients.
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μ˜μ–‘λΆ„μ„ μΆ”μΆœν•©λ‹ˆλ‹€.
04:35
And then this animal,
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그리고 이 동물,
04:37
this is a siphonophore,
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이것은 κ΄€ν•΄νŒŒλ¦¬μΈλ°
04:39
and they can get to lengths about half the size of a football field.
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이 쒅은 미식 좕ꡬ κ²½κΈ°μž₯ 절반 크기의 κΉŠμ΄κΉŒμ§€ λ‚΄λ €κ°ˆ 수 μžˆμŠ΅λ‹ˆλ‹€.
04:43
And they're able to swim vertically in the ocean
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그리고 이듀은 λ‹¨μˆœνžˆ 제트 좔진을 톡해
04:46
by just creating jet propulsion.
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λ°”λ‹€μ—μ„œ 수직으둜 μˆ˜μ˜μ„ ν•  수 μžˆμŠ΅λ‹ˆλ‹€.
04:48
And then finally we can answer these questions
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그리고 μš°λ¦¬λŠ” λ“œλ””μ–΄
04:50
about how swarming organisms, like krill,
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ν¬λ¦΄μƒˆμš°μ™€ 같이 λ•Œλ₯Ό 지어 λ‹€λ‹ˆλŠ” 생물듀이
04:53
are able to affect mixing on larger scales.
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큰 λ‹¨μœ„λ‘œ ν˜Όν•©ν•˜λŠ” 데 μ–΄λ–»κ²Œ 영ν–₯을 μ£ΌλŠ”μ§€μ— λŒ€ν•΄ λ‹΅ν•  수 μžˆμŠ΅λ‹ˆλ‹€.
04:57
And this is actually one of the most interesting results so far
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이것은 저희가 μŠ€μΏ λ²„ 닀이빙 μž₯치λ₯Ό 톡해 얻은
05:01
that we've collected using the scuba diving device
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κ°€μž₯ ν₯미둜운 κ²°κ³Όλ“€ 쀑 ν•˜λ‚˜μΈλ°
05:04
in that organisms, especially when they're moving in mass,
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λ°”λ‘œ 생물듀은, 특히 λ•Œκ±°μ§€λ‘œ 이동할 λ•Œ
05:08
are able to generate mixing
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λ°”λžŒκ³Ό νŒŒλ„μ™€ κ΄€λ ¨λœ
05:10
at levels that are equivalent to some other physical processes
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λ‹€λ₯Έ 물리적인 κ³Όμ •κ³Ό 같은 μ •λ„λ‘œ
ν˜Όν•©μ„ ν•  수 μžˆλ‹€λŠ” 것 μž…λ‹ˆλ‹€.
05:14
that are associated with winds and tides.
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05:17
But before I finish,
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그런데 μ œκ°€ 끝내기 전에
05:18
I want to leave you all with a question
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μ—¬λŸ¬λΆ„μ—κ²Œ 질문 ν•˜λ‚˜λ₯Ό 남기고 싢은데
05:21
because I think it's important to keep in mind
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μ΄λŠ” μ €λŠ” μ˜€λŠ˜λ‚  저희가 λ‹Ήμ—°ν•˜λ‹€κ³  μƒκ°ν•˜λŠ” κΈ°μˆ λ“€μ΄
05:23
that technologies today that we take for granted
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μ–΄λ””μ„œλΆ€ν„°μΈκ°€ μ‹œμž‘λ˜μ—ˆλ‹€λŠ” 것을
05:26
started somewhere.
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머리속에 κΈ°μ–΅ν•΄λ‘λŠ” 것이 μ€‘μš”ν•˜λ‹€κ³  μƒκ°ν•˜κΈ° λ•Œλ¬Έμž…λ‹ˆλ‹€.
05:28
It was inspired from something.
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λͺ¨λ‘ λ¬΄μ–Έκ°€λ‘œλΆ€ν„° μ˜κ°μ„ λ°›μ•˜μŠ΅λ‹ˆλ‹€.
05:30
So imagine scientists and engineers were inspired by birds
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κ³Όν•™μžλ“€κ³Ό κ³΅ν•™μžλ“€μ΄ μƒˆλ“€μ—κ²Œ μ˜κ°μ„ λ°›μ•„
05:33
to create airplanes.
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λΉ„ν–‰κΈ°λ₯Ό λ§Œλ“€μ—ˆλ‹€κ³  μƒμƒν•΄λ³΄μ„Έμš”.
05:36
And something we take for granted,
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그리고 저희가 λ‹Ήμ—°ν•˜λ‹€κ³  μƒκ°ν•˜λŠ”
05:37
flying from San Francisco to New York,
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μƒŒν”„λž€μ‹œμŠ€μ½”λΆ€ν„° λ‰΄μš•κΉŒμ§€ λ‚˜λŠ” 것은
05:40
is something that was inspired by an organism.
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μƒλ¬Όλ‘œλΆ€ν„° μ˜κ°μ„ 받은 κ²ƒμž…λ‹ˆλ‹€.
05:43
And as we're developing these new technologies
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ν•΄μ–‘ 생물듀을 μ΄ν•΄ν•˜κΈ° μœ„ν•΄
05:46
to understand marine organisms,
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μ΄λŸ¬ν•œ μƒˆλ‘œμš΄ κΈ°μˆ λ“€μ„ κ°œλ°œν•˜λ©΄μ„œ
05:48
what we want to do is answer this question:
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저희가 ν•˜κ³  싢은 것은 'μ–΄λ–»κ²Œ ν•΄μ–‘ 생물듀이 μš°λ¦¬μ—κ²Œ μ˜κ°μ„ 쀄 것인가?'
05:50
how will marine organisms inspire us?
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이 질문의 해닡을 μ°ΎλŠ” κ²ƒμž…λ‹ˆλ‹€.
05:52
Will they allow us to develop new underwater technologies,
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ν•΄νŒŒλ¦¬μ²˜λŸΌ 생긴 ν•΄μ € μž₯μΉ˜μ™€ 같은
05:56
like underwater vehicles that look like a jellyfish?
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μƒˆλ‘œμš΄ ν•΄μ € κΈ°μˆ λ“€μ„ κ°œλ°œν•  수 있게 ν•΄ μ€„κΉŒμš”?
05:59
I think it's a really exciting time in ocean exploration
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μ €λŠ” μ§€κΈˆμ˜ ν•΄μ–‘ 탐색이 맀우 ν₯미둜운 μ‹œμ μ— μžˆλ‹€κ³  μƒκ°ν•΄μš”,
06:02
because now we have the tools available to answer this kind of question,
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이런 μ§ˆλ¬Έμ„ ν•΄κ²°ν•  수 μžˆλŠ” 도ꡬ듀을 λ‹€ κ°–μΆ”μ—ˆκΈ° λ•Œλ¬Έμ΄κ³ 
06:06
and with the help of you guys at some point,
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μ–΄λŠ μ‹œμ μ—μ„œ μ—¬λŸ¬λΆ„μ˜ 도움을 톡해
06:09
you can apply these tools to answer this kind of question
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κ·ΈλŸ¬ν•œ λ°©λ²•λ“€λ‘œ μ§ˆλ¬Έμ„ ν•΄κ²°ν•˜κ³ 
06:12
and also develop technologies of the future.
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미래 κΈ°μˆ λ“€μ„ κ°œλ°œν•˜λŠ”λ° μ μš©ν•  μˆ˜λ„ μžˆμŠ΅λ‹ˆλ‹€.
06:15
Thank you.
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κ°μ‚¬ν•©λ‹ˆλ‹€.
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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