Lessons from a solar storm chaser | Miho Janvier

69,959 views ใƒป 2018-01-16

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์•„๋ž˜ ์˜๋ฌธ์ž๋ง‰์„ ๋”๋ธ”ํด๋ฆญํ•˜์‹œ๋ฉด ์˜์ƒ์ด ์žฌ์ƒ๋ฉ๋‹ˆ๋‹ค.

๋ฒˆ์—ญ: JY Kang ๊ฒ€ํ† : Caroline Ryu
00:13
It is almost the end of the winter,
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๊ฒจ์šธ์ด ๊ฑฐ์˜ ๋๋‚˜๊ฐ‘๋‹ˆ๋‹ค.
00:16
and you've woken up to a cold house,
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์•„์นจ์— ์ผ์–ด๋‚˜๋‹ˆ ์ง‘์ด ์ถ”์› ์–ด์š”.
00:19
which is weird, because you left the heater on all night.
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์ด์ƒํ•˜์ฃ , ๋ฐค์ƒˆ ํžˆํ„ฐ๋ฅผ ์ผœ๋‘์—ˆ๋Š”๋ฐ๋„ ๋ง์ด์ฃ .
00:24
You turn on the light.
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๋ถˆ์„ ์ผญ๋‹ˆ๋‹ค.
00:25
It's not working.
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๊ทธ๋Ÿฐ๋ฐ ์ผœ์ง€์ง€ ์•Š๋„ค์š”.
00:27
Actually, the coffee maker, the TV -- none of them are working.
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์‚ฌ์‹ค ์ปคํ”ผ ๋ฉ”์ด์ปค, TV, ์•„๋ฌด๊ฒƒ๋„ ์ผœ์ง€์ง€ ์•Š์•„์š”.
00:33
Life outside also seems to have stopped.
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๋ฐ”๊นฅ ์„ธ์ƒ๋„ ๋‹ค ๋ฉˆ์ถ˜ ๊ฒƒ ๊ฐ™์•„์š”.
00:36
There are no schools,
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ํ•™๊ต๋„ ์‰ฌ๊ณ 
00:38
most of the businesses are shut,
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์ƒ์ ๋„ ๋Œ€๋ถ€๋ถ„ ๋ฌธ์„ ๋‹ซ์•˜๊ณ 
00:40
and there are no working trains.
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๊ธฐ์ฐจ๋„ ๋‹ค๋‹ˆ์ง€ ์•Š์•„์š”.
00:43
This is not the opening scene of a zombie apocalypse movie.
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์ข€๋น„ ์˜ํ™”์˜ ํ•œ ์žฅ๋ฉด์„ ๋ง์”€๋“œ๋ฆฌ๋Š” ๊ฒŒ ์•„๋‹™๋‹ˆ๋‹ค.
00:48
This is what happened in March 1989 in the Canadian province of Quebec,
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1989๋…„ 3์›”์— ์บ๋‚˜๋‹ค์˜ ํ€˜๋ฒก ์ฃผ์—์„œ ์ผ์–ด๋‚œ ์ผ์ž…๋‹ˆ๋‹ค.
00:54
when the power grid lost power.
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์ „๋ ฅ๋ง ๊ฐ€๋™์ด ๋ฉˆ์ถ˜ ์ผ์ด ์žˆ์—ˆ์ฃ .
00:57
The culprit?
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๋ฒ”์ธ์ด ๋ˆ„๊ตฌ์˜€์„๊นŒ์š”?
00:59
A solar storm.
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๋ฐ”๋กœ ํƒœ์–‘ ํญํ’์ž…๋‹ˆ๋‹ค.
01:01
Solar storms are giant clouds of particles
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ํƒœ์–‘ ํญํ’์ด๋ž€ ์ด๋”ฐ๊ธˆ ํƒœ์–‘์—์„œ ๋ฐฉ์ถœ๋˜๋Š” ๋ฏธ๋ฆฝ์ž๋“ค๋กœ ์ด๋ฃจ์–ด์ง„ ๊ฑฐ๋Œ€ํ•œ ๊ตฌ๋ฆ„์ž…๋‹ˆ๋‹ค.
01:04
escaping from the Sun from time to time,
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01:06
and a constant reminder that we live in the neighborhood of an active star.
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์šฐ๋ฆฌ๊ฐ€ ์‚ด์•„์žˆ๋Š” ํ•ญ์„ฑ ๊ทผ์ฒ˜์— ์‚ด๊ณ  ์žˆ์Œ์„ ๋Š์ž„์—†์ด ์ƒ๊ธฐ์‹œ์ผœ์ฃผ๊ณ  ์žˆ์ฃ .
01:13
And I, as a solar physicist,
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์ €๋Š” ํƒœ์–‘ ๋ฌผ๋ฆฌํ•™์ž๋กœ์„œ
01:15
I have a tremendous chance to study these solar storms.
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์ด ํƒœ์–‘ ํญํ’์— ๋Œ€ํ•ด ์—ฐ๊ตฌํ•  ๊ธฐํšŒ๊ฐ€ ๊ต‰์žฅํžˆ ๋งŽ์Šต๋‹ˆ๋‹ค.
01:19
But you see, "solar storm chaser"
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"ํƒœ์–‘ ํญํ’ ์ถ”๊ฒฉ์ž"๋ผ๋Š” ๋ช…์นญ์ด
01:22
is not just a cool title.
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๊ดœํžˆ ๋ถ™์€ ๊ฒŒ ์•„๋‹ˆ์ฃ .
01:24
My research helps to understand where they come from,
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์ œ ์—ฐ๊ตฌ์˜ ๋ชฉ์ ์€
ํƒœ์–‘ ํญํ’์ด ์–ด๋””์„œ ์‹œ์ž‘๋˜๋Š”์ง€์™€ ์–ด๋–ป๊ฒŒ ์›€์ง์ด๋Š”์ง€ ์•Œ๋ ค๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
01:28
how they behave
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01:29
and, in the long run,
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๊ถ๊ทน์ ์œผ๋กœ๋Š”
01:31
aims to mitigate their effects on human societies,
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ํƒœ์–‘ ํญํ’์ด ์ธ๊ฐ„ ์‚ฌํšŒ์— ๋ฏธ์น˜๋Š” ์˜ํ–ฅ์„ ์ค„์ด๋Š” ๊ฒƒ์ด ๋ชฉ์ ์ด์ฃ .
01:34
which I'll get to in a second.
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์ด๊ฑด ์ž ์‹œ ํ›„ ๋ง์”€๋“œ๋ฆด๊ฒŒ์š”.
01:37
At the beginning of the space exploration age 50 years ago only,
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์šฐ์ฃผ ํƒ์‚ฌ ์ดˆ์ฐฝ๊ธฐ์ธ ๋ถˆ๊ณผ 50๋…„ ์ „์—
01:42
the probes we sent in space
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์šฐ์ฃผ๋กœ ๋ณด๋‚ธ ํƒ์‚ฌ์„ ์„ ํ†ตํ•ด
01:44
revealed that the planets in our Solar System
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ํƒœ์–‘๊ณ„์— ์žˆ๋Š” ํ–‰์„ฑ๋“ค์ด
01:47
constantly bathe in a stream of particles that are coming from the Sun
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ํƒœ์–‘์—์„œ ๋ฐฉ์ถœ๋œ ์ž…์ž๋“ค์˜ ํ๋ฆ„์— ๋Š์ž„์—†์ด ํœฉ์‹ธ์ธ๋‹ค๋Š” ๊ฑธ ์•Œ์•„๋ƒˆ์Šต๋‹ˆ๋‹ค.
01:52
and that we call the solar wind.
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๋ฐ”๋กœ ํƒœ์–‘ํ’์ด๋ผ๊ณ  ๋ถ€๋ฅด๋Š” ํ˜„์ƒ์ด์ฃ .
01:55
And in the same way that global wind patterns here on Earth
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๊ทธ๋Ÿฐ๋ฐ, ์ง€๊ตฌ์—์„œ ๋ถ€๋Š” ๋ฐ”๋žŒ์˜ ์–‘์ƒ์ด
01:59
can be affected by hurricanes,
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ํ—ˆ๋ฆฌ์ผ€์ธ์— ์˜ํ•ด ์˜ํ–ฅ์„ ๋ฐ›๋Š” ๊ฒƒ๊ณผ ๋งˆ์ฐฌ๊ฐ€์ง€๋กœ
02:01
the solar wind is sometimes affected by solar storms
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ํƒœ์–‘ํ’๋„ ๋•Œ๋•Œ๋กœ ํƒœ์–‘ ํญํ’์˜ ์˜ํ–ฅ์„ ๋ฐ›๊ธฐ๋„ ํ•ฉ๋‹ˆ๋‹ค.
02:05
that I like to call "space hurricanes."
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์ €๋Š” ์ด๊ฒƒ์„ "์šฐ์ฃผ ํ—ˆ๋ฆฌ์ผ€์ธ"์ด๋ผ ๋ถ€๋ฆ…๋‹ˆ๋‹ค.
02:09
When they arrive at planets,
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์šฐ์ฃผ ํ—ˆ๋ฆฌ์ผ€์ธ์ด ํ–‰์„ฑ์— ๋„์ฐฉํ•˜๋ฉด
02:11
they can perturb the space environment,
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์šฐ์ฃผ ํ™˜๊ฒฝ์„ ๊ต๋ž€์‹œํ‚ฌ ์ˆ˜ ์žˆ์–ด์š”.
02:13
which in turn creates the northern or southern lights,
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์˜ˆ๋ฅผ ๋“ค์–ด, ์ง€๊ตฌ์—์„œ๋Š” ๋ถ๊ทน๊ด‘์ด๋‚˜ ๋‚จ๊ทน๊ด‘์ด ๋งŒ๋“ค์–ด์ง€๊ธฐ๋„ ํ•ฉ๋‹ˆ๋‹ค.
02:17
for example, here on Earth,
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02:19
but also Saturn
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ํ† ์„ฑ์ด๋‚˜
02:21
and also Jupiter.
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๋ชฉ์„ฑ์—์„œ๋„ ๋งˆ์ฐฌ๊ฐ€์ง€์ฃ .
02:25
Luckily, here on Earth,
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๋‹คํ–‰ํžˆ, ์ด๊ณณ ์ง€๊ตฌ๋Š”
02:27
we are protected by our planet's natural shield,
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์ง€๊ตฌ์˜ ์ž์—ฐ ๋ฐœ์ƒ์  ๋ฐฉํŒจ๋ง‰์ด ์šฐ๋ฆฌ๋ฅผ ๋ณดํ˜ธํ•ด์ค๋‹ˆ๋‹ค.
02:30
a magnetic bubble that we call the magnetosphere
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'์ž๊ธฐ๊ถŒ'์ด๋ผ๊ณ  ํ•˜๋Š” ์ž๊ธฐ์žฅ ์˜์—ญ์ด์ฃ .
02:34
and that you can see here on the right side.
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์˜ค๋ฅธ์ชฝ์— ์žˆ๋Š” ๊ทธ๋ฆผ์ฒ˜๋Ÿผ์š”.
02:37
Nonetheless, solar storms can still be responsible
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๊ทธ๋Ÿผ์—๋„ ๋ถˆ๊ตฌํ•˜๊ณ 
์—ฌ์ „ํžˆ ํƒœ์–‘ ํญํ’์€ ์ธ๊ณต์œ„์„ฑ์˜ ํ†ต์‹ ๊ณผ ์ž‘๋™์— ๋ฌธ์ œ๋ฅผ ์ผ์œผํ‚ค๊ณ 
02:40
for disrupting satellite telecommunications and operations,
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02:45
for disrupting navigation systems, such as GPS,
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GPS ๊ฐ™์€ ํ•ญ๋ฒ•์žฅ์น˜๋‚˜
02:48
as well as electric power transmission.
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์ „๋ ฅ ์†ก์ „์—๋„ ๋ฌธ์ œ๋ฅผ ์ผ์œผํ‚ต๋‹ˆ๋‹ค.
02:51
All of these are technologies on which us humans rely more and more.
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์ด๋“ค์€ ๋ชจ๋‘ ์ธ๊ฐ„์ด ์ ์  ๋” ๋งŽ์ด ์˜์กดํ•˜๋Š” ๊ธฐ์ˆ ๋“ค์ด์ฃ .
02:58
I mean, imagine if you woke up tomorrow without a working cell phone --
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๋‚ด์ผ ์•„์นจ์— ์ผ์–ด๋‚ฌ๋Š”๋ฐ ํ•ธ๋“œํฐ์ด ์ž‘๋™ํ•˜์ง€ ์•Š๋Š”๋‹ค๊ณ  ์ƒ์ƒํ•ด๋ณด์„ธ์š”.
03:03
no internet on it,
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์ธํ„ฐ๋„ท๋„ ์•ˆ๋˜๊ณ ์š”.
03:05
which means no social media.
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SNS๋ฅผ ํ•  ์ˆ˜ ์—†๊ฒŒ ๋˜๋Š” ๊ฑฐ์ฃ .
03:07
I mean, to me that would be worse than the zombie apocalypse.
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์ €์—๊ฒ ์ข€๋น„ ์˜ํ™”๋ณด๋‹ค ๋” ๋”์ฐํ•œ ์ผ์ด์—์š”.
03:10
(Laughter)
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(์›ƒ์Œ)
03:12
By constantly monitoring the Sun, though,
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ํ•˜์ง€๋งŒ, ํƒœ์–‘์„ ๊ณ„์† ๊ด€์ฐฐํ•จ์œผ๋กœ์จ
03:14
we now know where the solar storms come from.
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์šฐ๋ฆฌ๋Š” ํƒœ์–‘ ํญํ’์ด ์–ด๋””์—์„œ ์‹œ์ž‘๋˜๋Š”์ง€ ์•Œ๊ฒŒ ๋˜์—ˆ์Šต๋‹ˆ๋‹ค.
03:17
They come from regions of the Sun
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ํƒœ์–‘ ํญํ’์€ ํƒœ์–‘์—์„œ ์—„์ฒญ๋‚œ ์–‘์˜ ์—๋„ˆ์ง€๊ฐ€ ์ถ•์ ๋œ ์ง€์ ์—์„œ ์‹œ์ž‘๋ฉ๋‹ˆ๋‹ค.
03:19
where a tremendous amount of energy is being stored.
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03:23
You have an example here,
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๊ทธ ์˜ˆ๋ฅผ ํ•˜๋‚˜ ์ค€๋น„ํ–ˆ๋Š”๋ฐ์š”.
03:24
as a complex structure hanging above the solar surface,
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ํƒœ์–‘ ํ‘œ๋ฉด์— ์–ด๋–ค ๋ณต์žกํ•œ ๊ตฌ์กฐ๊ฐ€ ๋งŒ๋“ค์–ด์ ธ
03:28
just on the verge of erupting.
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๋ถ„์ถœ๋˜๊ธฐ ์ง์ „์˜ ๋ชจ์Šต์ž…๋‹ˆ๋‹ค.
03:31
Unfortunately, we cannot send probes
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๋ถˆํ–‰ํžˆ๋„, ์ด๊ณณ์— ํƒ์‚ฌ์„ ์„ ๋ณด๋‚ผ ์ˆ˜๋Š” ์—†์Šต๋‹ˆ๋‹ค.
03:34
in the scorching hot atmosphere of the Sun,
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ํƒœ์–‘์˜ ๋ถˆํƒ€์˜ค๋ฅด๋Š” ๋Œ€๊ธฐ๋Š”
03:38
where temperatures can rise up to around 10 million degrees Kelvin.
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์˜จ๋„๊ฐ€ ๊ฑฐ์˜ 1,000๋งŒ ์ผˆ๋นˆ์— ๋‹ฌํ•˜๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
03:44
So what I do is I use computer simulations
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๊ทธ๋ž˜์„œ ์ €๋Š” ์ปดํ“จํ„ฐ ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค.
03:48
in order to analyze but also to predict the behavior of these storms
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ํƒœ์–‘์—์„œ ํญํ’์ด ๋ฐœ์ƒํ•˜๋Š” ์ˆœ๊ฐ„์— ์ด๋“ค์˜ ๊ฑฐ๋™์„ ๋ถ„์„ํ•˜๊ณ 
03:53
when they're just born at the Sun.
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์˜ˆ์ธกํ•˜๊ธฐ ์œ„ํ•ด์„œ์ฃ .
03:57
This is only one part of the story, though.
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ํ•˜์ง€๋งŒ ์ด๊ฒƒ๋“ค์€ ์ด์•ผ๊ธฐ์˜ ์ผ๋ถ€์— ์ง€๋‚˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
04:01
When these solar storms are moving in space,
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์ด ํƒœ์–‘ ํญํ’๋“ค์ด ์šฐ์ฃผ์—์„œ ์›€์ง์ด๋ฉฐ
04:05
some of them will inevitably encounter space probes
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์šฐ๋ฆฌ ์ธ๊ฐ„๋“ค์ด ์šฐ์ฃผ ์„ธ๊ณ„๋ฅผ ํƒ์‚ฌํ•˜๋ ค๊ณ  ๋ณด๋‚ธ ์šฐ์ฃผ์„ ๋“ค๊ณผ
04:08
that we humans have sent in order to explore other worlds.
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๋ถˆ๊ฐ€ํ”ผํ•˜๊ฒŒ ๋งˆ์ฃผ์น  ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค.
04:14
What I mean by other worlds is, for example, planets,
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์ œ๊ฐ€ ๋งํ•œ ์šฐ์ฃผ ์„ธ๊ณ„๋ž€
04:16
such as Venus or Mercury,
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์˜ˆ๋ฅผ ๋“ค๋ฉด, ๊ธˆ์„ฑ์ด๋‚˜ ์ˆ˜์„ฑ๊ฐ™์€ ํ–‰์„ฑ๋“ค๋„ ์žˆ์ง€๋งŒ
04:19
but also objects, such as comets.
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ํ˜œ์„ฑ ๊ฐ™์€ ๊ฒƒ๋„ ํฌํ•จ๋ฉ๋‹ˆ๋‹ค.
04:22
And while these space probes have been made
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์ด๋“ค์„ ๋Œ€์ƒ์œผ๋กœ ํ•œ ์šฐ์ฃผ ํƒ์‚ฌ์„ ๋“ค์€
04:25
for different scientific endeavors,
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์ €๋งˆ๋‹ค ๊ณผํ•™์  ํƒ๊ตฌ ๋ชฉ์ ์ด ๋‹ค๋ฅด๊ณ 
04:27
they can also act like tiny cosmic meteorological stations
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์ž‘์€ ์šฐ์ฃผ ๊ธฐ์ƒ ๊ด€์ธก์†Œ์˜ ์—ญํ• ์„ ํ•˜๋ฉด์„œ
04:33
and monitor the evolution of these space storms.
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์šฐ์ฃผ ํญํ’์˜ ๋ฐœ๋‹ฌ ๊ณผ์ •์„ ๊ด€์ฐฐํ•ฉ๋‹ˆ๋‹ค.
04:36
So I, with a group of researchers, gather and analyze this data
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๊ทธ๋ž˜์„œ ์ €๋Š” ๋‹ค๋ฅธ ์—ฐ๊ตฌ์›๋“ค๊ณผ ํ•จ๊ป˜
ํƒœ์–‘๊ณ„์˜ ์—ฌ๋Ÿฌ ์žฅ์†Œ์—์„œ ๊ด€์ฐฐ๋œ ๋ฐ์ดํ„ฐ๋“ค์„ ์ˆ˜์ง‘ํ•˜๊ณ  ๋ถ„์„ํ–ˆ์Šต๋‹ˆ๋‹ค.
04:42
coming from different locations of the Solar System.
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04:45
And by doing so, my research shows that, actually,
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๊ทธ๋ ‡๊ฒŒ ์ˆ˜ํ–‰ํ•œ ์ œ ์—ฐ๊ตฌ๋ฅผ ํ†ตํ•ด์„œ
์‹ค์ œ๋กœ ํƒœ์–‘ ํญํ’์€ ํฌ๊ด„์ ์ธ ํ˜•ํƒœ๋ฅผ ์ง€๋‹ˆ๊ณ  ์žˆ๋‹ค๋Š” ์‚ฌ์‹ค์„ ์•Œ์•„๋ƒˆ์ฃ .
04:48
solar storms have a generic shape,
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04:50
and that this shape evolves as solar storms move away from the Sun.
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๋˜ํ•œ ํƒœ์–‘ ํญํ’์ด ํƒœ์–‘์œผ๋กœ๋ถ€ํ„ฐ ๋ฉ€์–ด์ง€๋ฉฐ ๊ทธ ํ˜•ํƒœ๊ฐ€ ๋งŒ๋“ค์–ด์ง„๋‹ค๋Š” ๊ฒƒ๋„ ์•Œ์•˜์Šต๋‹ˆ๋‹ค.
04:55
And you know what?
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๊ทธ๋Ÿฐ๋ฐ ๋ง์ด์ฃ .
04:56
This is key for building tools to predict space weather.
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์ด๊ฑด ์šฐ์ฃผ์˜ ๋‚ ์”จ๋ฅผ ์˜ˆ์ธกํ•˜๊ธฐ ์œ„ํ•œ ๋„๊ตฌ๋ฅผ ๋งŒ๋“œ๋Š” ๋ฐ ์ค‘์š”ํ•œ ์—ด์‡ ์ž…๋‹ˆ๋‹ค.
05:03
I would like to leave you with this beautiful image.
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์ €๋Š” ์—ฌ๋Ÿฌ๋ถ„๊ป˜ ์•„๋ฆ„๋‹ค์šด ์‚ฌ์ง„์„ ๋ณด์—ฌ๋“œ๋ฆฌ๊ณ ์‹ถ์Šต๋‹ˆ๋‹ค.
05:06
This is us here on Earth,
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์—ฌ๊ธฐ ์ง€๊ตฌ์— ์žˆ๋Š” ์šฐ๋ฆฌ๋“ค์ด์ฃ .
05:09
this pale blue dot.
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์ด ์ฐฝ๋ฐฑํ•œ ํ‘ธ๋ฅธ ์ ์„ ๋ณด์„ธ์š”.
05:11
And while I study the Sun and its storms every day,
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ํƒœ์–‘๊ณผ ํƒœ์–‘ ํญํ’์„ ๋งค์ผ ์—ฐ๊ตฌํ•˜๋ฉฐ
05:15
I will always have a deep love for this beautiful planet --
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์ €๋Š” ์ด ์•„๋ฆ„๋‹ค์šด ํ–‰์„ฑ์— ๋Œ€ํ•œ ๊นŠ์€ ์• ์ •์„ ์žƒ์ง€ ์•Š์„ ๊ฒƒ์ž…๋‹ˆ๋‹ค.
05:20
a pale blue dot indeed,
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์ •๋ง ์ฐฝ๋ฐฑํ•œ ํ‘ธ๋ฅธ ์ ์ด์ง€๋งŒ
05:21
but a pale blue dot with an invisible magnetic shield
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์ด ํ‘ธ๋ฅธ ์ ์ด ๋งŒ๋“œ๋Š” ๋ณด์ด์ง€ ์•Š์€ ์ž๊ธฐ์žฅ์ด
05:25
that helps to protect us.
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์šฐ๋ฆฌ๋ฅผ ์ง€์ผœ์ฃผ๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
05:27
Thank you.
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๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค.
05:28
(Applause)
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(๋ฐ•์ˆ˜)
์ด ์›น์‚ฌ์ดํŠธ ์ •๋ณด

์ด ์‚ฌ์ดํŠธ๋Š” ์˜์–ด ํ•™์Šต์— ์œ ์šฉํ•œ YouTube ๋™์˜์ƒ์„ ์†Œ๊ฐœํ•ฉ๋‹ˆ๋‹ค. ์ „ ์„ธ๊ณ„ ์ตœ๊ณ ์˜ ์„ ์ƒ๋‹˜๋“ค์ด ๊ฐ€๋ฅด์น˜๋Š” ์˜์–ด ์ˆ˜์—…์„ ๋ณด๊ฒŒ ๋  ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๊ฐ ๋™์˜์ƒ ํŽ˜์ด์ง€์— ํ‘œ์‹œ๋˜๋Š” ์˜์–ด ์ž๋ง‰์„ ๋”๋ธ” ํด๋ฆญํ•˜๋ฉด ๊ทธ๊ณณ์—์„œ ๋™์˜์ƒ์ด ์žฌ์ƒ๋ฉ๋‹ˆ๋‹ค. ๋น„๋””์˜ค ์žฌ์ƒ์— ๋งž์ถฐ ์ž๋ง‰์ด ์Šคํฌ๋กค๋ฉ๋‹ˆ๋‹ค. ์˜๊ฒฌ์ด๋‚˜ ์š”์ฒญ์ด ์žˆ๋Š” ๊ฒฝ์šฐ ์ด ๋ฌธ์˜ ์–‘์‹์„ ์‚ฌ์šฉํ•˜์—ฌ ๋ฌธ์˜ํ•˜์‹ญ์‹œ์˜ค.

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