The spear-wielding stork who revolutionized science - Lucy Cooke

394,684 views

2020-12-17 ใƒป TED-Ed


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The spear-wielding stork who revolutionized science - Lucy Cooke

394,684 views ใƒป 2020-12-17

TED-Ed


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

๊ฒ€ํ† : DK Kim
00:08
In May of 1822, Count Christian Ludwig von Bothmer
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1822๋…„ 5์›”์— ํฌ๋ฆฌ์Šค์ฐฌ ๋ฃจ๋“œ๋น„ํžˆ ๋ณธ ๋ณด์Šค๋จธ ๋ฐฑ์ž‘์€
00:13
shot down a stork over his castle grounds in North Germany.
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๋ถ๋…์ผ์— ์žˆ๋Š” ๊ทธ์˜ ์„ฑ์—์„œ ์ด์œผ๋กœ ํ™ฉ์ƒˆ ํ•œ ๋งˆ๋ฆฌ๋ฅผ ์žก์•˜์Šต๋‹ˆ๋‹ค.
00:17
However, he wasnโ€™t the first person to hunt that specific bird.
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๊ทธ๋Ÿฐ๋ฐ ๊ทธ๊ฐ€ ๊ทธ ์ƒˆ๋ฅผ ์‚ฌ๋ƒฅํ•œ ์ฒซ ๋ฒˆ์งธ ์‚ฌ๋žŒ์ด ์•„๋‹ˆ์—ˆ์Šต๋‹ˆ๋‹ค.
00:23
Upon recovering the stork,
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๋ณธ ๋ณด์Šค๋จธ ๋ฐฑ์ž‘์€ ์‚ฌ๋ƒฅํ•œ ํ™ฉ์ƒˆ๋ฅผ ์ฐพ์•„ ์˜ค๋ฉด์„œ
00:25
von Bothmer found it impaled by a yard long wooden spear.
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ํ™ฉ์ƒˆ์— 1 ๋ฏธํ„ฐ ์ •๋„์˜ ๋‚˜๋ฌด ์ฐฝ์ด ๋ฐ•ํ˜€ ์žˆ๋Š” ๊ฒƒ์„ ๋ฐœ๊ฒฌํ–ˆ์Šต๋‹ˆ๋‹ค.
00:30
A local professor determined the weapon was African in origin,
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๊ทผ์ฒ˜์— ์‚ฌ๋Š” ๊ต์ˆ˜๋Š” ๊ทธ ์ฐฝ์ด ์•„ํ”„๋ฆฌ์นด์—์„œ ์“ฐ๋Š” ๊ฒƒ์ด๋ผ๊ณ  ํ–ˆ๊ณ 
00:34
suggesting that somehow, this stork was speared in Africa
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์•„ํ”„๋ฆฌ์นด์—์„œ ์ฐฝ์— ๋งž์€ ํ™ฉ์ƒˆ๊ฐ€ ์–ด์ฐŒ์–ด์ฐŒํ•ด์„œ
00:38
and then flew over 2,500 kilometers to the countโ€™s castle.
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๋ฐฑ์ž‘์˜ ์„ฑ๊นŒ์ง€ 2,500 ํ‚ฌ๋กœ๋ฏธํ„ฐ๋ฅผ ๋‚ ์•„์˜จ ๊ฒƒ์ด๋ผ๊ณ  ํ–ˆ์Šต๋‹ˆ๋‹ค.
์ด ๋†€๋ผ์šด ๋น„ํ–‰์€ ํ™ฉ์ƒˆ์˜ ํŠผํŠผํ•จ์„ ์ฆ๋ช…ํ•˜๋Š” ๊ฒƒ๋งŒ์ด ์•„๋‹ˆ์—ˆ์Šต๋‹ˆ๋‹ค.
00:44
This astonishing flight wasnโ€™t just evidence of the storkโ€™s resilience.
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00:48
It was an essential clue in a mystery that plagued scientists for centuries:
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๋ช‡ ์„ธ๊ธฐ ๋™์•ˆ ๊ณผํ•™์ž๋“ค์„ ๊ดด๋กญํžŒ ์˜๋ฌธ์˜ ์ค‘์š”ํ•œ ๋‹จ์„œ์˜€์Šต๋‹ˆ๋‹ค.
00:54
the seasonal disappearance of birds.
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์™œ ์ƒˆ๋“ค์€ ์ฒ ๋งˆ๋‹ค ์‚ฌ๋ผ์ง€๋Š”๊ฐ€ ํ•˜๋Š” ์˜๋ฌธ์ด์—ˆ์ฃ .
00:57
Ancient naturalists had various theories to explain the annual vanishing act
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๊ณ ๋Œ€ ๋™์‹๋ฌผ ์—ฐ๊ตฌ๊ฐ€๋“ค์€
ํ˜„์žฌ๋Š” ์ด์ฃผ๋ผ๊ณ  ๋ถ€๋ฅด๋Š”, ํ•ด๋งˆ๋‹ค ์‚ฌ๋ผ์ง€๋Š” ํ–‰๋™์„ ์„ค๋ช…ํ•˜๋ ค๊ณ 
01:02
we now know as migration.
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๋‹ค์–‘ํ•œ ์ด๋ก ์„ ์ œ์‹œํ–ˆ์Šต๋‹ˆ๋‹ค.
01:05
Aristotle himself proposed three particularly popular ideas.
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์•„๋ฆฌ์Šคํ† ํ…”๋ ˆ์Šค๋Š” ํŠนํžˆ ์ธ๊ธฐ ์žˆ์—ˆ๋˜ ์„ธ ๊ฐ€์ง€ ์ƒ๊ฐ์„ ์ œ์‹œํ–ˆ์Šต๋‹ˆ๋‹ค.
01:11
One theory was that birds transformed into different bodies that suited the season.
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์ฒซ ๋ฒˆ์งธ ์ด๋ก ์€ ์ƒˆ๋“ค์ด ๊ณ„์ ˆ์— ๋งž๊ฒŒ ๋ณ€์‹ ํ•œ๋‹ค๋Š” ๊ฒƒ์ด์—ˆ์Šต๋‹ˆ๋‹ค.
01:16
For example, summer time garden warblers
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์˜ˆ๋ฅผ ๋“ค์–ด ์„œ๋จธํƒ€์ž„ ์ •์›์†”์ƒˆ๋Š”
01:20
were believed to transform into black caps every winter.
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๊ฒจ์šธ๋งˆ๋‹ค ๊ฒ€์€ ๋จธ๋ฆฌ ๊พ€๊ผฌ๋ฆฌ๋กœ ๋ณ€ํ•œ๋‹ค๊ณ  ์ƒ๊ฐํ–ˆ์Šต๋‹ˆ๋‹ค.
01:24
In reality these are two distinct speciesโ€” similar in shape and size,
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์‚ฌ์‹ค ๋‘˜์€ ํฌ๊ธฐ์™€ ๋ชจ์–‘์ด ๋น„์Šทํ•œ ์„œ๋กœ ๋‹ค๋ฅธ ์ข…์ด๋ฉฐ
01:28
but never appearing at the same time.
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๋‹ค๋งŒ ์ ˆ๋Œ€ ๋™์‹œ์— ๋‚˜ํƒ€๋‚˜์ง€ ์•Š๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
01:31
Over the following centuries, birds were said to morph into humans,
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๊ทธ ํ›„ ๋ช‡ ์„ธ๊ธฐ ๋™์•ˆ ์ƒˆ๋“ค์€ ์‚ฌ๋žŒ ๋˜๋Š” ์‹๋ฌผ์ด๋‚˜
01:36
plants, and even the timbers of ships.
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์‹ฌ์ง€์–ด ๋ชฉ์žฌ ๋‹ค๋ฐœ๋กœ ๋ณ€์‹ ํ•œ๋‹ค๊ณ  ์•Œ๋ ค์ ธ ์™”์Šต๋‹ˆ๋‹ค.
01:40
This last transmutation was especially popular with many Christian clergy.
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๋ชฉ์žฌ ๋‹ค๋ฐœ ๋ณ€์‹ ์€ ํŠนํžˆ ๊ธฐ๋…๊ต ์„ฑ์ง์ž๋“ค์—๊ฒŒ ์ธ๊ธฐ ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค.
01:45
If barnacle geese were truly made of wood,
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๋งŒ์•ฝ ๊ธฐ๋Ÿฌ๊ธฐ ๋–ผ๊ฐ€ ์ง„์งœ ๋‚˜๋ฌด๋กœ ๋งŒ๋“ค์–ด์กŒ๋‹ค๋ฉด
01:48
they could be deemed vegetarian and enjoyed during meatless fasts.
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๊ทธ๋“ค์€ ์‹๋ฌผ์„ฑ์œผ๋กœ ์ƒ๊ฐ๋˜์–ด ์œก์‹์„ ๊ธˆํ•˜๋Š” ์‹œ๊ธฐ์— ์ฆ๊ฒผ์„ ๊ฒƒ์ž…๋‹ˆ๋‹ค.
01:54
Aristotleโ€™s second and even more enduring hypothesis was that birds hibernate.
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์•„๋ฆฌ์Šคํ† ํ…”๋ ˆ์Šค์˜ ๋‘ ๋ฒˆ์งธ ์ด๋ก ์ด๊ณ  ์ˆ˜๋ช…์ด ๋” ๊ธธ์—ˆ๋˜ ๊ฒƒ์€
์ƒˆ๊ฐ€ ๊ฒจ์šธ์ž ์„ ์ž”๋‹ค๋Š” ๊ฒƒ์ด์—ˆ์ฃ .
02:00
This isnโ€™t so far-fetched.
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์ด๊ฒƒ์€ ๋„ˆ๋ฌด ์–ต์ง€์Šค๋Ÿฌ์šด ์ฃผ์žฅ์€ ์•„๋‹™๋‹ˆ๋‹ค.
02:02
Some species do enter short,
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์–ด๋–ค ์ข…๋“ค์€ ์งง๊ณ  ๊นŠ์€ ์ž ์„ ์ž์„œ
02:04
deep sleeps which lower their heart rates and metabolisms.
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์‹ฌ์žฅ ๋ฐ•๋™์ˆ˜์™€ ์‹ ์ง„๋Œ€์‚ฌ์œจ์„ ๋‚ฎ์ถฅ๋‹ˆ๋‹ค.
02:08
And thereโ€™s at least one truly hibernating bird:
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๊ทธ๋ฆฌ๊ณ  ์ง„์งœ ๊ฒจ์šธ์ž ์„ ์ž๋Š” ์ƒˆ๊ฐ€ ์ตœ์†Œํ•œ ํ•œ ์ข…์€ ์žˆ์Šต๋‹ˆ๋‹ค.
02:12
the common poorwill sleeps out winters in the deserts of North America.
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ํ”ํ•œ ํ‘ธ์–ด์›”์€ ๋ถ๋ฏธ ์‚ฌ๋ง‰์—์„œ ์ž ์„ ์ž๋ฉฐ ๊ฒจ์šธ์„ ๋‚ฉ๋‹ˆ๋‹ค.
02:16
But researchers were proposing much more outlandish forms of hibernation
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ํ•˜์ง€๋งŒ ์—ฐ๊ตฌ์›๋“ค์€ 19์„ธ๊ธฐ์— ์ ‘์–ด๋“ค์–ด์„œ
ํ›จ์”ฌ ๋” ๊ธฐ์ดํ•œ ํ˜•ํƒœ์˜ ๊ฒจ์šธ์ž ์„ ์ œ์•ˆํ–ˆ์Šต๋‹ˆ๋‹ค.
02:21
well into the 19th century.
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02:23
Barn swallows were said to remove their feathers and hibernate in holes,
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์ œ๋น„๋Š” ๊นƒํ„ธ์„ ๋ฒ„๋ฆฌ๊ณ  ๊ตฌ๋ฉ์—์„œ ๊ฒจ์šธ์ž ์„ ์ž๊ฑฐ๋‚˜
๊ฐ•์ด๋‚˜ ํ˜ธ์ˆ˜์˜ ๋ฐ”๋‹ฅ์—์„œ ๊ฒจ์šธ ๋‚ด๋‚ด ์ž”๋‹ค๊ณ  ์•Œ๋ ค์กŒ์Šต๋‹ˆ๋‹ค.
02:29
or sleep through the winter at the bottom of lakes and rivers.
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02:33
Aristotleโ€™s final theory was much more reasonable,
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์•„๋ฆฌ์Šคํ† ํ…”๋ ˆ์Šค์˜ ๋งˆ์ง€๋ง‰ ์ด๋ก ์€ ํ›จ์”ฌ ๋” ๋…ผ๋ฆฌ์ ์ด์—ˆ๊ณ 
02:36
and resembled something like realistic migration.
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์ง„์งœ ์ด์ฃผ์™€ ๋น„์Šทํ–ˆ์Šต๋‹ˆ๋‹ค.
02:40
However, this idea was also taken to extremes.
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ํ•˜์ง€๋งŒ ์ด ์ด๋ก ๋„ ์—ญ์‹œ ๊ทน๋‹จ์ ์ด์—ˆ์Šต๋‹ˆ๋‹ค.
02:44
In 1666, the leading migration advocate was convinced that each winter,
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1666๋…„์— ์„ ๊ตฌ์ ์ธ ์ด์ฃผ์˜ ์˜นํ˜ธ์ž๋“ค์€
์ƒˆ๋“ค์ด ๊ฒจ์šธ๋งˆ๋‹ค ๋‹ฌ๋กœ ๋‚ ์•„๊ฐ„๋‹ค๊ณ  ํ–ˆ์Šต๋‹ˆ๋‹ค.
02:50
birds flew to the moon.
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02:52
It might seem strange that prominent researchers considered such bizarre ideas.
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์œ ๋ช…ํ•œ ์—ฐ๊ตฌ๊ฐ€๋“ค์ด ์ด๋ ‡๊ฒŒ ์ด์ƒํ•œ ์ƒ๊ฐ์„ ํ–ˆ๋‹ค๋Š” ๊ฒŒ ์ด์ƒํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
02:58
But to be fair, the true story of migration
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ํ•˜์ง€๋งŒ ๋ฐ”๋กœ ๋งํ•˜์ž๋ฉด, ์ง„์งœ ์ด์ฃผ ์ด์•ผ๊ธฐ๋Š”
03:01
may be even harder to believe than their wildest theories.
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๊ฐ€์žฅ ๋ฏฟ๊ธฐ ์–ด๋ ค์šด ์ด๋ก ๋ณด๋‹ค ๋” ๋ฏฟ๊ธฐ ํž˜๋“ค ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค.
03:05
Roughly 20% of all bird species migrate each year,
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์กฐ๋ฅ˜์˜ ์•ฝ 20%๋Š” ๋งค๋…„ ์ด์ฃผํ•ฉ๋‹ˆ๋‹ค.
03:09
following warm weather and fresh food around the planet.
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๋”ฐ๋œปํ•œ ๋‚ ์”จ์™€ ์‹ ์„ ํ•œ ์Œ์‹์„ ์ฐพ์•„ ์ง€๊ตฌ๋ฅผ ๋Œ์•„๋‹ค๋‹ˆ๋Š” ๊ฑฐ์ฃ .
03:12
For birds who spend their summers in the northern hemisphere,
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๋ถ๋ฐ˜๊ตฌ์—์„œ ์—ฌ๋ฆ„์„ ๋ณด๋‚ด๋Š” ์ƒˆ๋“ค์—๊ฒŒ
03:16
this journey can span from 700 to over 17,000 kilometers,
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์ด ์—ฌํ–‰์€ ๊ฑฐ๋ฆฌ๊ฐ€ 700์—์„œ 17,000 ํ‚ฌ๋กœ๋ฏธํ„ฐ์ด๊ณ 
03:22
with some flights lasting as long as four months.
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์–ด๋–ค ๊ฒƒ์€ 4๊ฐœ์›”๊นŒ์ง€ ๊ฑธ๋ฆฝ๋‹ˆ๋‹ค.
03:26
Birds who migrate across oceans may soar without stopping for over 100 hours.
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๋ฐ”๋‹ค๋ฅผ ๊ฑด๋„ˆ ์ด์ฃผํ•˜๋Š” ์ƒˆ๋“ค์€ 100์‹œ๊ฐ„ ์ด์ƒ ๋ฉˆ์ถ”์ง€ ์•Š๊ณ  ๋‚ฉ๋‹ˆ๋‹ค.
03:32
Sleeping and eating on the fly, they navigate the endless ocean
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๋‚ ๋ฉด์„œ ๋จน๊ณ  ์ž๋ฉฐ ๋ณ„, ๋ฐ”๋žŒ, ์ง€๊ตฌ์˜ ์ž๊ธฐ์žฅ์„ ๋”ฐ๋ผ
03:37
by the stars, wind currents, and Earthโ€™s magnetic field.
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๋์ด ์—†์–ด ๋ณด์ด๋Š” ๋ฐ”๋‹ค๋ฅผ ๊ฑด๋„™๋‹ˆ๋‹ค.
03:42
Tracking the specifics of these epic expeditions is notoriously difficult.
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์ด ๋Œ€๋‹จํ•œ ํƒํ—˜์„ ํ•˜๋Š” ์ข…์„ ์ข‡๋Š” ๊ฒƒ์€ ์–ด๋ ต๊ธฐ๋กœ ์•…๋ช…์ด ๋†’์Šต๋‹ˆ๋‹ค.
03:47
And while birds often take the most direct route possible,
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๋˜ํ•œ ์ƒˆ๋“ค์€ ๊ฐ€์žฅ ๊ฐ€๊นŒ์šด ๊ฒฝ๋กœ๋ฅผ ํƒํ•˜๋Š” ๋ฐ˜๋ฉด์—
ํƒœํ’์ด๋‚˜ ์‚ฌ๋žŒ๋“ค์— ์˜ํ•œ ๊ฐœ๋ฐœ์€ ๊ฒฝ๋กœ๋ฅผ ๋ฐ”๊ฟ€ ์ˆ˜ ์žˆ์–ด
03:51
storms and human development can alter their paths,
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03:54
further complicating our attempts to chart migration.
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์ด์ฃผ๋ฅผ ๊ธฐ๋กํ•˜๋Š” ๊ฒƒ์„ ๋” ์–ด๋ ต๊ฒŒ ๋งŒ๋“ญ๋‹ˆ๋‹ค.
03:58
Fortunately, Count von Bothmerโ€™s stork offered physical proof
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๋ณธ ๋ณด์Šค๋จธ ๋ฐฑ์ž‘์ด ์œ ํ™ฉ์ƒˆ๋Š” ์šด ์ข‹๊ฒŒ๋„ ์œ ๋Ÿฝ ํ™ฉ์ƒˆ๋“ค์ด
04:02
not only that European storks were migrating south for the winter,
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๊ฒจ์šธ์— ๋‚จ์ชฝ์œผ๋กœ ์ด์ฃผํ•˜๋Š” ๊ฒƒ๋งŒ ์•„๋‹ˆ๋ผ
04:06
but also where they were migrating to.
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์–ด๋””๋กœ ๊ฐ€๋Š”์ง€์— ๋Œ€ํ•œ ๋ฌผ๋ฆฌ์ ์ธ ์ฆ๊ฑฐ๋„ ๋ณด์—ฌ์คฌ์Šต๋‹ˆ๋‹ค.
04:10
Ornithologists across the continent
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์œ ๋Ÿฝ ์ „์—ญ์— ์žˆ๋Š” ์กฐ๋ฅ˜ํ•™์ž๋“ค์€
04:12
were eager to map the trajectory of this flight,
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์ด ๋น„ํ–‰์˜ ๊ฒฝ๋กœ๋ฅผ ์•Œ๊ณ  ์‹ถ์–ดํ–ˆ์Šต๋‹ˆ๋‹ค.
04:15
including Johannes Thienemann.
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์š”ํ•˜๋„ค์Šค ํ‹ฐ์—๋„ค๋งŒ๋„ ๊ทธ์ค‘ ํ•˜๋‚˜์˜€์ฃ .
04:18
Owner of the worldโ€™s first permanent bird observatory,
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์„ธ๊ณ„ ์ตœ์ดˆ ์˜๊ตฌ ์กฐ๋ฅ˜ ๊ด€์ธก์†Œ์˜ ์ฃผ์ธ์ธ
04:22
Thienemann was a major public advocate for the study of birds.
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ํ‹ฐ์—๋„ค๋งŒ์€ ์กฐ๋ฅ˜ ์—ฐ๊ตฌ์—์„œ ์ค‘์š”ํ•œ ์ง€์ง€์ž ์ค‘ ํ•˜๋‚˜์˜€์Šต๋‹ˆ๋‹ค.
04:26
And to solve the fieldโ€™s biggest mystery,
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๊ทธ๋Š” ๊ทธ ๋ถ„์•ผ์—์„œ ๊ฐ€์žฅ ํฐ ์˜๋ฌธ์„ ํ’€๊ธฐ ์œ„ํ•ด
04:28
he wrangled an army of volunteers from across Germany.
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๋…์ผ ์ „์—ญ์˜ ๋ด‰์‚ฌ์ž๋“ค๊ณผ ํž˜์„ ํ•ฉ์ณค์Šต๋‹ˆ๋‹ค.
04:32
His team used aluminum rings to tag the legs of two thousand storks
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๊ทธ์˜ ํŒ€์€ ํ™ฉ์ƒˆ 2000๋งˆ๋ฆฌ์˜ ๋‹ค๋ฆฌ์— ์•Œ๋ฃจ๋ฏธ๋Š„ ๊ณ ๋ฆฌ๋ฅผ ์ฑ„์šฐ๊ณ 
04:38
with unique numbers and the address of his offices.
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๊ณ ์œ  ๋ฒˆํ˜ธ์™€ ์‚ฌ๋ฌด์‹ค์˜ ์ฃผ์†Œ๋ฅผ ์ ์—ˆ์Šต๋‹ˆ๋‹ค.
04:42
Then he advertised the initiative as widely as possible.
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๊ทธ๋ผ๊ณ  ๋‚˜์„œ ๊ฐ€๋Šฅํ•œ ํ•œ ๋„๋ฆฌ ๊ณ„ํš์„ ์•Œ๋ ธ์Šต๋‹ˆ๋‹ค.
04:47
His hope was that word of the experiment would find its way to Africa,
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๊ทธ์˜ ๋ฐ”๋žŒ์€ ์‹คํ—˜์„ ํ•œ๋‹ค๋Š” ๋ง์ด ์•„ํ”„๋ฆฌ์นด๊นŒ์ง€ ํผ์ ธ์„œ
04:51
so people finding the tags would know to mail them back with more information.
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์‚ฌ๋žŒ๋“ค์ด ๊ผฌ๋ฆฌํ‘œ๋ฅผ ๋ฐœ๊ฒฌํ•˜๋ฉด ์ •๋ณด์™€ ํ•จ๊ป˜ ๋ณด๋‚ด์ฃผ๋Š” ๊ฒƒ์ด์—ˆ์Šต๋‹ˆ๋‹ค.
04:57
Sure enough, from 1908 to 1913,
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๋‹น์—ฐํ•˜๊ฒŒ๋„ 1908๋…„๋ถ€ํ„ฐ 1913๋…„๊นŒ์ง€
05:00
Thienemann received 178 rings, 48 of which had been found in Africa.
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ํ‹ฐ์—๋„ค๋งŒ์€ ํšŒ์‹ ์„ 178๊ฑด ๋ฐ›์•˜๊ณ 
๊ทธ์ค‘ 48๊ฑด์€ ์•„ํ”„๋ฆฌ์นด์—์„œ ์™”์Šต๋‹ˆ๋‹ค.
05:07
Using this data, he plotted the first migration route ever discovered,
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์ด ์ •๋ณด๋กœ ๊ทธ๋Š” ์ฒ˜์Œ์œผ๋กœ ์ด์ฃผ ๊ฒฝ๋กœ๋ฅผ ์ž‘์„ฑํ–ˆ๊ณ 
ํ™ฉ์ƒˆ๋Š” ์‚ฌ์‹ค ๋‹ฌ๋กœ ๋‚ ์•„๊ฐ€๋Š” ๊ฒƒ์ด ์•„๋‹ˆ๋ผ๋Š” ๊ฒƒ์„ ํ™•์‹คํžˆ ๋ฐํ˜”์Šต๋‹ˆ๋‹ค.
05:13
and definitively established that storks were not, in fact, flying to the moon.
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์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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