Why is Mount Everest so tall? - Michele Koppes

2,836,664 views ใƒป 2016-04-07

TED-Ed


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

๋ฒˆ์—ญ: Seon-Gyu Choi ๊ฒ€ํ† : Joowon Lee
00:07
Every spring,
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๋งคํ•ด ๋ด„์ด๋ฉด
00:08
hundreds of adventure-seekers dream of climbing Qomolangma,
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์ˆ˜๋ฐฑ ๋ช…์˜ ๋ชจํ—˜๊ฐ€๋“ค์ด ์ดˆ๋ชจ๋ž‘๋งˆ๋ฅผ ๋“ฑ๋ฐ˜์„ ๊ฟˆ ๊ฟ‰๋‹ˆ๋‹ค.
00:12
also known as Mount Everest.
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๋˜๋Š” ์—๋ฒ ๋ ˆ์ŠคํŠธ๋ผ๊ณ  ์•Œ๋ ค์ ธ ์žˆ๋Š” ์‚ฐ์ด์ฃ .
00:14
At base camp, they hunker down for months
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๋ฒ ์ด์Šค ์ผํ”„์—์„œ ๋ช‡๋‹ฌ ๋™์•ˆ ๊ธฐ๋‹ค๋ฆฌ๋ฉฐ
00:17
waiting for the chance to scale the mountain's lofty, lethal peak.
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์‚ฐ์˜ ์šฐ๋š ์†Ÿ์€ ์œ„ํ—˜ํ•œ ์ •์ƒ์— ์˜ค๋ฅผ ๊ธฐํšŒ๋ฅผ ์˜…๋ณด๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
00:22
But why do people risk life and limb to climb Everest?
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ํ•˜์ง€๋งŒ ์™œ ์‚ฌ๋žŒ๋“ค์€ ๋ชฉ์ˆจ ๊ฑธ๊ณ  ์—๋ฒ ๋ ˆ์ŠคํŠธ๋ฅผ ์˜ค๋ฅด๋ ค๊ณ  ํ•˜๋Š” ๊ฑธ๊นŒ์š”?
00:26
Is it the challenge?
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๋„์ „์ •์‹  ๋•Œ๋ฌธ์ผ๊นŒ์š”?
00:27
The view?
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์ •์ƒ์˜ ์ ˆ๊ฒฝ ๋•Œ๋ฌธ์ผ๊นŒ์š”?
00:28
The chance to touch the sky?
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ํ•˜๋Š˜์— ๋‹ฟ๊ณ  ์‹ถ์–ด์„œ ์ผ๊นŒ์š”?
00:32
For many, the draw is Everest's status as the highest mountain on Earth.
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๋Œ€๋‹ค์ˆ˜๋Š” ์—๋ฒ ๋ ˆ์ŠคํŠธ๊ฐ€ ์ง€๊ตฌ์ƒ์—์„œ ๊ฐ€์žฅ ๋†’๊ธฐ ๋•Œ๋ฌธ์— ์ด๋Œ๋ ค ์™”์Šต๋‹ˆ๋‹ค.
00:37
There's an important distinction to make here.
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๋ถ„๋ช…ํžˆ ๋‹ค๋ฅธ ์ ์ด ์žˆ์Šต๋‹ˆ๋‹ค.
00:40
Mauna Kea is actually the tallest from base to summit,
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๋ฒ ์ด์Šค ์ผํ”„์—์„œ ์ •์ƒ๊นŒ์ง€ ๊ฐ€์žฅ ๋จผ ์‚ฐ์€ ๋งˆ์šฐ๋‚˜ ์ผ€์•„ ์ž…๋‹ˆ๋‹ค.
00:44
but at 8850 meters above sea level,
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ํ•˜์ง€๋งŒ ํ•ด์ˆ˜๋ฉด์—์„œ 8,850m์˜
00:47
Everest has the highest altitude on the planet.
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์ง€๊ตฌ์ƒ ๊ฐ€์žฅ ๋†’์€ ์‚ฐ์€ ์—๋ฒ ๋ ˆ์ŠคํŠธ ์ž…๋‹ˆ๋‹ค.
00:51
To understand how this towering formation was born,
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์–ด๋–ป๊ฒŒ ์ด ์šฐ๋š์†Ÿ์€ ๋ชจ์–‘์ด ์ƒ๊ฒจ๋‚ฌ๋Š”์ง€๋ฅผ ์ดํ•ดํ•˜๊ธฐ ์œ„ํ•ด
00:54
we have to peer deep into our planet's crust,
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์šฐ๋ฆฌ๋Š” ์ง€๊ตฌ ์ง€์ธต ๊นŠ์ˆ™์ด
00:57
where continental plates collide.
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๋Œ€๋ฅ™ํŒ์ด ์ถฉ๋Œํ•˜๋Š” ๊ณณ๊นŒ์ง€ ๋‚ด๋ ค๊ฐ€์•ผ ํ•ฉ๋‹ˆ๋‹ค.
01:00
The Earth's surface is like an armadillo's armor.
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์ง€๊ตฌ์˜ ํ‘œ์ธต์€ ์•„๋ฅด๋งˆ๋”œ๋กœ์˜ ๊ฐ‘์˜ท๊ฐ™์Šต๋‹ˆ๋‹ค.
01:03
Pieces of crust constantly move over,
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์ง€๊ฐ์˜ ์กฐ๊ฐ๋“ค์ด ๋Š์ž„์—†์ด ์›€์ง์ด๊ณ 
01:06
under,
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ํŒŒ๊ณ ๋“ค๊ณ 
01:07
and around each other.
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๋‘˜๋Ÿฌ์‹ธ๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
01:08
For such huge continental plates, the motion is relatively quick.
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์ด ๊ฑฐ๋Œ€ํ•œ ๋Œ€๋ฅ™ํŒ๋“ค์€ ์ƒ๊ฐ๋ณด๋‹ค ๋น ๋ฅด๊ฒŒ ์›€์ง์ž…๋‹ˆ๋‹ค.
01:13
They move two to four centimeters per year,
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๋งค๋…„ 2~4 cm ์›€์ง์ž…๋‹ˆ๋‹ค.
01:16
about as fast as fingernails grow.
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์ด๋Š” ์†ํ†ฑ์ด ์ž๋ผ๋Š” ์†๋„์™€ ๋น„์Šทํ•ฉ๋‹ˆ๋‹ค.
01:18
When two plates collide,
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๋‘ ๊ฐœ์˜ ๋Œ€๋ฅ™ํŒ์ด ๋ถ€๋”ชํž ๋•Œ
01:20
one pushes into or underneath the other, buckling at the margins,
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ํ•˜๋‚˜๊ฐ€ ๋‹ค๋ฅธ ํ•˜๋‚˜์— ๋ถ€๋”ชํžˆ๊ณ  ์•„๋ž˜๋กœ ๋ฐ€์–ด ๋„ฃ์œผ๋ฉด์„œ ๊ทธ ํ‹ˆ์ด ๋ณ€ํ˜•๋ฉ๋‹ˆ๋‹ค.
01:25
and causing what's known as uplift to accomodate the extra crust.
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๊ทธ๋ฆฌ๊ณ  ์ง€๊ฐ ๋ณ€ํ™”๊ฐ€ ํ”ํžˆ ์•Œ๊ณ  ์žˆ๋Š” ์œต๊ธฐ๋ฅผ ๋งŒ๋“ค์–ด ๋ƒ…๋‹ˆ๋‹ค.
01:29
That's how Everest came about.
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์ด๊ฒƒ์ด ์—๋ฒ ๋ ˆ์ŠคํŠธ๊ฐ€ ์ƒ๊ธด ๊ณผ์ •์ž…๋‹ˆ๋‹ค.
01:32
50 million years ago, the Earth's Indian Plate drifted north,
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5์ฒœ๋งŒ ๋…„์ „์— ์ง€๊ตฌ์˜ ์ธ๋„ ํŒ์ด ๋ถ์ชฝ์œผ๋กœ ์ด๋™ํ•ด
01:36
bumped into the bigger Eurasian Plate,
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๋” ํฐ ์œ ๋ผ์‹œ์•„ ํŒ์— ๋ถ€๋”ชํ˜”์Šต๋‹ˆ๋‹ค.
01:38
and the crust crumpled, creating huge uplift.
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๊ทธ๋ฆฌ๊ณ  ์ง€๊ฐ์ด ๋ถ€๋”ชํžˆ๋ฉฐ ๊ฑฐ๋Œ€ํ•œ ์œต๊ธฐ๋ฅผ ๋งŒ๋“ค์—ˆ์Šต๋‹ˆ๋‹ค.
01:42
Mountain Everest lies at the heart of this action,
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์—๋ฒ ๋ ˆ์ŠคํŠธ ์‚ฐ์€ ์ด ์ž‘์šฉ์˜ ์ค‘์‹ฌ์— ์žˆ๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
01:45
on the edge of the Indian-Eurasian collision zone.
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์ธ๋„ ํŒ๊ณผ ์œ ๋ผ์‹œ์•„ ํŒ์ด ๋งŒ๋‚˜๋Š” ์ง€์—ญ์—์„œ ๋ง์ด์ฃ .
01:49
But mountains are shaped by forces other than uplift.
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ํ•˜์ง€๋งŒ ์‚ฐ์˜ ๋ชจ์–‘์€ ์œต๊ธฐ ์ด์™ธ์˜ ์š”์†Œ๋“ค๋กœ ๋งŒ๋“ค์–ด ์ง‘๋‹ˆ๋‹ค.
01:52
As the land is pushed up, air masses are forced to rise as well.
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๋•…์ด ์˜ฌ๋ผ์˜ค๋ฉด์„œ ๊ณต๊ธฐ์˜ ๋ฐ€๋„๋„ ๋†’์•„์ง‘๋‹ˆ๋‹ค.
01:58
Rising air cools, causing any water vapor within it to condense
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๊ณต๊ธฐ๊ฐ€ ์ฐจ๊ฐ€์›Œ์ง€๋ฉด ๊ณต๊ธฐ ์ค‘์˜ ์ฆ๊ธฐ๊ฐ€ ๋ญ‰์น˜๊ฒŒ ๋˜์–ด
02:02
and form rain or snow.
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๋ˆˆ์ด๋‚˜ ๋น„๊ฐ€ ๋‚ด๋ฆฌ๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
02:05
As that falls, it wears down the landscape,
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๋ˆˆ, ๋น„๊ฐ€ ๋‚ด๋ฆฌ๋ฉด ์‚ฐ์˜ ๋ชจ์–‘์ด ๋‹ณ์•„ ๋ณ€ํ•ฉ๋‹ˆ๋‹ค.
02:07
dissolving rocks or breaking them down in a process known as weathering.
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๋ฐ”์œ„๋ฅผ ๋‹ณ๊ฒŒ ํ•˜๊ณ  ์ž˜๊ฒŒ ๋ถ€์ˆ˜๋Š” ์ด ๊ณผ์ •์€ ํ’ํ™”๋ผ๊ณ  ํ•ฉ๋‹ˆ๋‹ค.
02:12
Water moving downhill carries the weathered material
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ํ•˜๋ฅ˜๋กœ ํ๋ฅด๋Š” ๊ฐ•๋ฌผ์€ ํ’ํ™”๋กœ ๋ถ€์„œ์ง„ ๋ฌผ์งˆ์„ ๋‚˜๋ฅด๋ฉฐ
02:15
and erodes the landscape,
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์ง€ํ˜•์„ ์นจ์‹ ์‹œํ‚ค๋ฉฐ
02:17
carving out deep valleys and jagged peaks.
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๊นŠ์€ ๊ณ„๊ณก๊ณผ ๋พฐ์กฑํ•œ ๋ด‰์šฐ๋ฆฌ๋ฅผ ๊นŽ์•„๋‚ด๋ฆฝ๋‹ˆ๋‹ค.
02:20
This balance between uplift and erosion gives a mountain its shape.
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์œต๊ธฐ์™€ ์นจ์‹์˜ ๊ท ํ˜•์ด ์‚ฐ์˜ ๋ชจ์–‘์„ ๋งŒ๋“ญ๋‹ˆ๋‹ค.
02:25
But compare the celestial peaks of the Himalayas
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ํ•˜์ง€๋งŒ ํ•˜๋Š˜์— ๋‹ฟ์€ ํžˆ๋ง๋ผ์•ผ์˜ ๋ด‰์šฐ๋ฆฌ์™€
02:28
to the comforting hills of Appalachia.
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์• ํŒ”๋ž˜์น˜์•„์˜ ์™„๋งŒํ•œ ๋Šฅ์„ ๊ณผ ๋น„๊ตํ•˜๋ฉด
02:30
Clearly, all mountains are not alike.
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๋ถ„๋ช…ํžˆ ์‚ฐ๋“ค์ด ๋ชจ๋‘ ๋น„์Šทํ•˜์ง„ ์•Š์Šต๋‹ˆ๋‹ค.
02:33
That's because time comes into the equation, too.
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์‹œ๊ฐ„๊ณผ๋„ ์—ฐ๊ด€์ด ์žˆ๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
02:35
When continental plates first collide, uplift happens fast.
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๋Œ€๋ฅ™ํŒ์ด ์ฒ˜์Œ ๋ถ€๋”ช์น˜๋ฉด ์œต๊ธฐ๊ฐ€ ๋น ๋ฅด๊ฒŒ ์ƒ๊น๋‹ˆ๋‹ค.
02:40
The peaks grow tall with steep slopes.
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์ •์ƒ์ด ๋†’๊ณ  ๊ฐ€ํŒŒ๋ฅด๊ฒŒ ํ˜•์„ฑ๋ฉ๋‹ˆ๋‹ค.
02:43
Over time, however, gravity and water wear them down.
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์‹œ๊ฐ„์ด ํ๋ฅด๋ฉด์„œ ๋Šฅ์„ ์ด ์ค‘๋ ฅ๊ณผ ๋น—๋ฌผ์— ๊นŽ์—ฌ ๋‚ด๋ ค๊ฐ‘๋‹ˆ๋‹ค.
02:46
Eventually, erosion overtakes uplift,
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๊ฒฐ๊ตญ ์นจ์‹์ด ์œต๊ธฐ๋ฅผ ์•ž์ง€๋ฅด๊ฒŒ ๋˜๊ณ 
02:49
wearing down peaks faster than they're pushed up.
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์ •์ƒ์ด ๋†’์•„์ง€๋Š” ๊ฒƒ ๋ณด๋‹ค ๋น ๋ฅด๊ฒŒ ๊นŽ์•„ ๋‚ด๋ฆฌ๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
02:52
A third factor shapes mountains: climate.
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์‚ฐ์˜ ๋ชจ์–‘์„ ๊ตฌ์„ฑํ•˜๋Š” ์„ธ๋ฒˆ์งธ ์š”์†Œ๋Š” ๋‚ ์”จ์ž…๋‹ˆ๋‹ค.
02:55
In subzero temperatures, some snowfall doesn't completely melt away,
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์˜ํ•˜์˜ ์˜จ๋„์—์„œ๋Š” ์Œ“์ธ ๋ˆˆ์ด ์™„์ „ํžˆ ๋…น์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
03:00
instead slowly compacting until it becomes ice.
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๋Œ€์‹  ์ฒœ์ฒœํžˆ ์–ผ์Œ์ด ๋  ๋•Œ๊นŒ์ง€ ๋‹ค์ ธ์ง‘๋‹ˆ๋‹ค.
03:03
That forms the snowline, which occurs at different heights around the planet
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์ด๊ฒƒ์ด ์ง€๊ตฌ์ƒ์—์„œ ๋‚ ์”จ์— ๋”ฐ๋ผ ๋‹ค๋ฅธ ๊ณ ๋„์— ์ƒ๊ธฐ๋Š”
03:08
depending on climate.
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์„ค์„ ์„ ํ˜•์„ฑํ•ฉ๋‹ˆ๋‹ค.
03:11
At the freezing poles, the snowline is at sea level.
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๊ทน์ง€๋ฐฉ์˜ ์„ค์„ ์€ ํ•ด์ˆ˜๋ฉด๊ณผ ๊ฐ™์Šต๋‹ˆ๋‹ค.
03:14
Near the equator, you have to climb five kilometers before it gets cold enough
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์ ๋„ ๊ทผ์ฒ˜๋Š” ์–ผ์Œ์ด ์–ผ๊ธฐ ์œ„ํ•ด์„ 
03:19
for ice to form.
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ํ•ด์ˆ˜๋ฉด์—์„œ 5km ์ด์ƒ ์˜ฌ๋ผ๊ฐ€์•ผ ํ•ฉ๋‹ˆ๋‹ค.
03:21
Gathered ice starts flowing under its own immense weight
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์–ผ์Œ์ด ๋ชจ์ด๋ฉด ์–ด๋งˆ์–ด๋งˆํ•œ ๋ฌด๊ฒŒ์— ํ๋ฅด๊ธฐ ์‹œ์ž‘ํ•ฉ๋‹ˆ๋‹ค.
03:24
forming a slow-moving frozen river known as a glacier,
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๋น™ํ•˜๋ผ๊ณ  ์•Œ๋ ค์ง„ ์ฒœ์ฒœํžˆ ์›€์ง์ด๋Š” ์–ผ์Œ๊ฐ•์„ ํ˜•์„ฑํ•ด
03:28
which grinds the rocks below.
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์‚ฐ์„ ๊นŽ์•„๋‚ด๋ฆฌ๊ธฐ ์‹œ์ž‘ํ•ฉ๋‹ˆ๋‹ค.
03:30
The steeper the mountains, the faster ice flows,
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์‚ฐ์ด ๊ฐ€ํŒŒ๋ฅผ์ˆ˜๋ก ์–ผ์Œ์€ ๋น ๋ฅด๊ฒŒ ํ˜๋Ÿฌ๋‚ด๋ฆฌ๊ณ 
03:33
and the quicker it carves the underlying rock.
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๋” ๋น ๋ฅด๊ฒŒ ์‚ฐ์„ ๊นŽ์•„๋‚ด๋ ค๊ฐ‘๋‹ˆ๋‹ค.
03:37
Glaciers can erode landscapes swifter than rain and rivers.
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๋น™ํ•˜๋Š” ๋น„๋‚˜ ๊ฐ•๋ณด๋‹ค ๋น ๋ฅด๊ฒŒ ํ’ํ™”๋ฅผ ์œ ๋„ํ•ฉ๋‹ˆ๋‹ค.
03:41
Where glaciers cling to mountain peaks, they sand them down so fast,
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์‚ฐ ์ •์ƒ์— ์ƒ๊ธด ๋น™ํ•˜๋Š” ๋น ๋ฅด๊ฒŒ ํ˜๋Ÿฌ ๋‚ด๋ ค์™€์„œ
03:45
they lop the tops off like giant snowy buzzsaws.
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๊ฑฐ๋Œ€ํ•œ ๋ˆˆ ์ „๊ธฐํ†ฑ๊ฐ™์ด ์‚ฐ์„ ์ž˜๋ผ๋ฒ„๋ฆฝ๋‹ˆ๋‹ค.
03:49
So then, how did the icy Mount Everest come to be so tall?
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๊ทธ๋Ÿฌ๋ฉด ์–ด๋–ป๊ฒŒ ๋ˆˆ ๋ฎ์ธ ์—๋ฒ ๋ ˆ์ŠคํŠธ๋Š” ์ด๋ ‡๊ฒŒ ๋†’์•„์งˆ ์ˆ˜ ์žˆ์—ˆ์„๊นŒ์š”?
03:54
The cataclysmic continental clash from which it arose
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๊ฒฉ๋™์ ์ธ ๋Œ€๋ฅ™ํŒ์˜ ์ถฉ๋Œ ๋•Œ๋ฌธ์—
03:57
made it huge to begin with.
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์ฒ˜์Œ๋ถ€ํ„ฐ ๋†’๊ฒŒ ๋งŒ๋“ค์–ด ์กŒ์Šต๋‹ˆ๋‹ค.
04:00
Secondly, the mountain lies near the tropics,
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๋‘˜์งธ๋กœ ์—ด๋Œ€์ง€๋ฐฉ์— ์‚ฐ์ด ์œ„์น˜ํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
04:03
so the snowline is high, and the glaciers relatively small,
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๊ทธ๋ž˜์„œ ๋†’์ด์— ๋น„ํ•ด ์„ค์„ ์ด ์–‡์Šต๋‹ˆ๋‹ค.
04:07
barely big enough to widdle it down.
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๊ฒจ์šฐ ํ˜๋Ÿฌ๋‚ด๋ฆด ์ •๋„์ž…๋‹ˆ๋‹ค.
04:10
The mountain exists in a perfect storm of conditions
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ํญํ’์ด ๋งŽ์ด ๋ถ€๋Š” ํ™˜๊ฒฝ๋„
04:13
that maintain its impressive stature.
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์‚ฐ์ด ์ธ์ƒ์ ์ธ ๋ชจ์Šต์„ ์œ ์ง€ํ•˜๋Š” ์ด์œ ์ž…๋‹ˆ๋‹ค.
04:15
But that won't always be the case.
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ํ•˜์ง€๋งŒ ์–ธ์ œ๊นŒ์ง€๋‚˜ ์ด๋Ÿฐ ์ƒํ™ฉ์ด ์œ ์ง€๋˜์ง„ ์•Š์„ ๊ฒƒ ์ž…๋‹ˆ๋‹ค.
04:17
We live in a changing world where the continental plates,
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์šฐ๋ฆฌ๊ฐ€ ์‚ฌ๋Š” ์„ธ์ƒ์€ ํ•ญ์ƒ ๋ณ€ํ™”ํ•˜๊ธฐ์— ๋Œ€๋ฅ™ํŒ์˜ ์›€์ง์ž„์ด
04:20
Earth's climate,
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์ง€๊ตฌ์˜ ์˜จ๋„๊ฐ€
04:22
and the planet's erosive power
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๊ทธ๋ฆฌ๊ณ  ์ง€๊ตฌ์˜ ๋ถ€์‹๋ ฅ์ด
04:23
might one day conspire to cut Mount Everest down to size.
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์–ธ์  ๊ฐ€ ์—๋ฒ ๋ ˆ์ŠคํŠธ ์‚ฐ์„ ๊นŽ์•„ ๋‚ด๋ฆด ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค.
04:28
For now, at least, it remains legendary in the minds of hikers,
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์ง€๊ธˆ์€ ์ ์–ด๋„ ์ „์„ค์ ์ธ ์กด์žฌ๋กœ ๋“ฑ์‚ฐ๊ฐ€๋“ค์˜ ๋งˆ์Œ์—
04:32
adventurers,
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๋ชจํ—˜๊ฐ€๋“ค์˜ ๋งˆ์Œ์—
04:33
and dreamers alike.
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๊ทธ๋ฆฌ๊ณ  ๋ชฝ์ƒ๊ฐ€๋“ค์˜ ๋งˆ์Œ์— ๋‚จ์•„์žˆ์ง€๋งŒ์š”.
์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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