Is DNA the future of data storage? - Leo Bear-McGuinness

399,861 views ใƒป 2017-10-09

TED-Ed


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

๋ฒˆ์—ญ: ๋„์˜ ์ „ ๊ฒ€ํ† : Jihyeon J. Kim
00:07
Let's say there's a disaster that sends humanity back to the Stone Age.
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์ธ๋ฅ˜๋ฅผ ๋‹ค์‹œ ์„๊ธฐ ์‹œ๋Œ€๋กœ ๋˜๋Œ๋ฆฌ๋Š” ์žฌ๋‚œ์ด ์žˆ๋‹ค๊ณ  ํ•ด๋ด…์‹œ๋‹ค.
00:12
Can our knowledge and history survive?
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์šฐ๋ฆฌ์˜ ์ง€์‹๊ณผ ์—ญ์‚ฌ๋Š” ์‚ด์•„๋‚จ์„ ์ˆ˜ ์žˆ์„๊นŒ์š”?
00:15
The printed page will decompose.
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์ธ์‡„๋œ ์ข…์ด๋Š” ๋ถ„ํ•ด๋  ๊ฒƒ์ž…๋‹ˆ๋‹ค.
00:17
Hard drive storage will deteriorate.
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ํ•˜๋“œ ๋“œ๋ผ์ด๋ธŒ๋Š” ์„ฑ๋Šฅ์ด ์•…ํ™”๋  ๊ฒƒ์ด๊ณ ์š”.
00:19
Even stones will eventually crumble.
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๋Œ์กฐ์ฐจ๋„ ๊ฒฐ๊ตญ์—๋Š” ์‚ฐ์‚ฐ์กฐ๊ฐ ๋‚  ๊ฒƒ์ž…๋‹ˆ๋‹ค.
00:22
But we might have something inside us that can outlast these physical limitations:
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ํ•˜์ง€๋งŒ ์ด๋Ÿฐ ๋ฌผ๋ฆฌ์  ํ•œ๊ณ„๋ฅผ ๋„˜์„ ๊ฒƒ์ด ์šฐ๋ฆฌ ์•ˆ์— ์žˆ์„์ง€๋„ ๋ชฐ๋ผ์š”.
00:28
deoxyribonucleic acid.
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๋””์˜ฅ์‹œ๋ฆฌ๋ณดํ•ต์‚ฐ.
00:30
DNA already stores our biological information.
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DNA๋Š” ์ด๋ฏธ ์šฐ๋ฆฌ์˜ ์ƒ๋ฌผํ•™์  ์ •๋ณด๋ฅผ ์ €์žฅํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
00:34
From eye color to skin tone, it programs our entire bodies.
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๋ˆˆ ์ƒ‰๋ถ€ํ„ฐ ํ”ผ๋ถ€์ƒ‰์— ์ด๋ฅด๊ธฐ๊นŒ์ง€, ์šฐ๋ฆฌ ๋ชธ ์ „์ฒด๋ฅผ ํ”„๋กœ๊ทธ๋žจ ํ•ฉ๋‹ˆ๋‹ค.
00:39
DNA is made of four organic bases:
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DNA๋Š” ๋„ค ๊ฐ€์ง€์˜ ์œ ๊ธฐ์ ์ธ ๊ตฌ์„ฑ์š”์†Œ๋กœ ์ด๋ฃจ์–ด์ ธ ์žˆ์Šต๋‹ˆ๋‹ค.
00:42
adenine,
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์•„๋ฐ๋‹Œ,
00:43
guanine,
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๊ตฌ์•„๋‹Œ,
00:44
cytosine,
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์‚ฌ์ดํ† ์‹ ,
00:45
and thymine,
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๊ทธ๋ฆฌ๊ณ  ํ‹ฐ์•„๋ฏผ,
00:46
or A, G, C, and T.
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๋˜๋Š” A,G,C, ๊ทธ๋ฆฌ๊ณ  T์ž…๋‹ˆ๋‹ค.
00:49
The specific sequence of these bases into groups of three, known as codons,
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์—ฐ์†๋œ ์„ธ ๊ฐœ์˜ ์—ผ๊ธฐ๊ฐ€ ํ•œ ์กฐ๋ฅผ ์ด๋ฃจ๋Š” ์ฝ”๋ˆ์€
00:54
gives our cells instructions to make each of the proteins in our bodies.
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์šฐ๋ฆฌ ๋ชธ ์•ˆ์˜ ๊ฐ ๋‹จ๋ฐฑ์งˆ์„ ์ƒ์‚ฐํ•˜๊ธฐ ์œ„ํ•ด ์„ธํฌ๋“ค์—๊ฒŒ ์ง€์‹œ๋ฅผ ๋‚ด๋ฆฝ๋‹ˆ๋‹ค
00:59
But this code can be used for other things, too,
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ํ•˜์ง€๋งŒ ์ด๋Ÿฐ ์•”ํ˜ธ๋Š” ๋‹ค๋ฅธ ๊ฒƒ์—๋„ ์‚ฌ์šฉ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
01:02
like secret messages.
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๋น„๋ฐ€ ๋ฉ”์‹œ์ง€ ๊ฐ™์€ ๊ฒƒ๋“ค ๋ง์ด์ฃ .
01:04
In 1999, scientists in New York created an alphabet
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1999๋…„๋„์—, ๋‰ด์š•์˜ ๊ณผํ•™์ž๋“ค์€ ์•ŒํŒŒ๋ฒณ๋“ค์„ ๋งŒ๋“ค์–ด๋ƒˆ์Šต๋‹ˆ๋‹ค.
01:08
in which each of the 64 possible DNA codons
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64๊ฐœ์˜ DNA ์ฝ”๋ˆ์ด ๊ฐ€๋Šฅํ•œ ์•ŒํŒŒ๋ฒณ๋“ค์ด์—ˆ์ฃ .
01:12
substituted for a specific letter, number, or grammar symbol.
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๊ทธ๊ฒƒ๋“ค์€ ํŠน์ •ํ•œ ๊ธ€์ž, ์ˆซ์ž, ๋˜๋Š” ๋ฌธ๋ฒ• ๊ธฐํ˜ธ๋ฅผ ๋Œ€์ฒดํ•˜๊ธฐ๋„ ํ–ˆ์Šต๋‹ˆ๋‹ค.
01:18
They spliced a 22-character message into a long strand of DNA
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๊ทธ๋“ค์€ 22๊ฐœ์˜ ํŠน์ • ๋ฉ”์‹œ์ง€๋“ค์„ ์ด์–ด ๋ถ™์—ฌ ๊ธด ๊ฐ€๋‹ฅ์˜ DNA๋ฅผ ๋งŒ๋“ค์—ˆ์Šต๋‹ˆ๋‹ค.
01:23
and surrounded it with specific genetic markers.
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๊ทธ๋ฆฌ๊ณ  ๊ทธ๊ฒƒ์„ ํŠน์ •ํ•œ ์œ ์ „ ํ‘œ์ง€๋กœ ๋‘˜๋Ÿฌ์ŒŒ์Šต๋‹ˆ๋‹ค.
01:27
They then hid the DNA over a period in a type-written letter
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๊ทธ๋ฆฌ๊ณ  ๊ทธ๋“ค์€ ํƒ€์ž๋กœ ์นœ ํŽธ์ง€ ์†์˜ DNA๋ฅผ ์ผ์ • ๊ธฐ๊ฐ„์— ๊ฑธ์ณ ์ˆจ๊ฒผ์Šต๋‹ˆ๋‹ค.
01:31
with only a small smudge to give the location away.
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์œ„์น˜๋ฅผ ์•Œ๋ ค์ฃผ๊ธฐ ์œ„ํ•œ ์ž‘์€ ์ž๊ตญ๋งŒ์„ ๋‚จ๊ธฐ๊ณ  ๋ง์ด์ฃ .
01:35
They mailed the letter back to themselves.
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๊ทธ๋“ค์€ ๋‹ค์‹œ ๊ทธ๋“ค ์ž์‹ ์—๊ฒŒ ํŽธ์ง€๋ฅผ ๋ณด๋ƒˆ์Šต๋‹ˆ๋‹ค.
01:38
Then they examined the letter looking for the DNA strand.
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๊ทธ๋ฆฌ๊ณ  ๊ทธ๋“ค์€ DNA๊ฐ€๋‹ฅ์„ ์ฐพ์œผ๋ฉฐ ํŽธ์ง€๋ฅผ ์กฐ์‚ฌํ–ˆ์Šต๋‹ˆ๋‹ค.
01:41
Once the DNA strand was located, they found the genetic markers.
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DNA ๊ฐ€๋‹ฅ์„ ์ฐพ์ž๋งˆ์ž, ๊ทธ๋“ค์€ ์œ ์ „ ํ‘œ์ง€๋ฅผ ์ฐพ์•˜์Šต๋‹ˆ๋‹ค.
01:45
Then, they sequenced the DNA and successfully decoded the message.
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๊ทธ๋ฆฌ๊ณ  ๊ทธ๋“ค์€ DNA๋ฅผ ๋ฐฐ์—ดํ–ˆ๊ณ , ์„ฑ๊ณต์ ์œผ๋กœ ๋ฉ”์‹œ์ง€๋ฅผ ํ•ด๋…ํ–ˆ์Šต๋‹ˆ๋‹ค.
01:50
It soon became obvious that DNA cryptography
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๊ทธ๊ฒƒ์€ ๊ณง DNA ์•”ํ˜ธ์ž‘์„ฑ์ˆ ๋กœ
01:53
could code for much more than simple text.
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๊ฐ„๋‹จํ•œ ๊ธ€ ์ด์ƒ์„ ์•”ํ˜ธํ™” ์‹œํ‚ฌ ์ˆ˜ ์žˆ์Œ์ด ๋ช…๋ฐฑํ•ด์กŒ์Šต๋‹ˆ๋‹ค.
01:56
By translating the 1's and 0's of binary code into DNA codons,
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1๊ณผ 0์˜ ์ด์ง„๋ฒ• ์•”ํ˜ธ๋ฅผ DNA ์ฝ”๋ˆ์œผ๋กœ ํ•ด์„ํ•จ์œผ๋กœ์จ
02:01
digital data could be programmed into synthetic DNA,
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๋””์ง€ํ„ธ ๋ฐ์ดํ„ฐ๋Š” ํ•ฉ์„ฑํ•œ DNA๋กœ ํ”„๋กœ๊ทธ๋žจ๋  ์ˆ˜ ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค.
02:05
then decoded back into its original form.
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๊ทธ๋ฆฌ๊ณ  ๊ทธ๊ฒƒ์˜ ๋ณธ๋ž˜์˜ ํ˜•ํƒœ๋กœ ๋‹ค์‹œ ํ•ด๋…๋ฉ๋‹ˆ๋‹ค.
02:09
In 2012, UK scientists encoded 739 kilobytes of computer files
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2012๋…„์—, ์˜๊ตญ์˜ ๊ณผํ•™์ž๋“ค์€ 739KB์˜ ์ปดํ“จํ„ฐ ํŒŒ์ผ๋“ค์„
02:15
into DNA strands,
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DNA ๊ฐ€๋‹ฅ์œผ๋กœ ์•”ํ˜ธํ™” ์‹œํ‚ต๋‹ˆ๋‹ค.
02:17
including all 154 Shakespeare sonnets
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๊ทธ๊ฒƒ์€ ์…ฐ์ต์Šคํ”ผ์–ด์˜ 154๊ฐœ ์†Œ๋„คํŠธ ์ „๋ถ€์™€
02:21
and an excerpt from Martin Luther King's "I Have a Dream" speech.
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๋งˆํ‹ด ๋ฃจํ„ฐ ํ‚น์˜ "๋‚˜๋Š” ๊ฟˆ์ด ์žˆ์Šต๋‹ˆ๋‹ค" ๊ฐ•์—ฐ์˜ ๋ถ€๋ถ„์„ ํฌํ•จํ•˜๊ณ  ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค.
02:25
And four years later, researchers at Microsoft and the University of Washington
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๊ทธ๋ฆฌ๊ณ  4๋…„์ด ์ง€๋‚œ ๋’ค์—, ๋งˆ์ดํฌ๋กœ์†Œํ”„ํŠธ์™€ ์›Œ์‹ฑํ„ด ๋Œ€ํ•™์˜ ์—ฐ๊ตฌ์›๋“ค์€
02:29
broke that record.
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๊ทธ ๊ธฐ๋ก์„ ๊นผ์Šต๋‹ˆ๋‹ค.
02:32
They used binary coding to capture a whopping 200 megabytes of data,
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๊ทธ๋“ค์€ ๋งค์šฐ ํฐ 200MB์˜ ๋ฐ์ดํ„ฐ ์ˆ˜์ง‘์„ ์œ„ํ•ด 2์ง„๋ฒ• ๋ถ€ํ˜ธํ™”๋ฅผ ์‚ฌ์šฉํ–ˆ์Šต๋‹ˆ๋‹ค
02:37
including the Universal Declaration of Human Rights
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๊ทธ๊ฒƒ์€ ์„ธ๊ณ„ ์ธ๊ถŒ ์„ ์–ธ๊ณผ
02:40
and a high-def OK Go music video,
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๊ณ ํ™”์งˆ์˜ OK Go ๋ฎค์ง๋น„๋””์˜ค๋ฅผ ํฌํ•จํ•˜๊ณ  ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค.
02:43
all in strings of DNA.
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๋ชจ๋‘ DNA์˜ ๊ฐ€๋‹ฅ๋“ค ์•ˆ์— ๋ง์ด์ฃ .
02:46
As far as storage capacity goes,
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์ €์žฅ ๋Šฅ๋ ฅ์ด ๋„๋‹ฌํ•  ๋•Œ๊นŒ์ง€
02:48
DNA stands out because of the surprising amount of information it can hold
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DNA์˜ ๋‘๋“œ๋Ÿฌ์ง€๋Š” ์ ์€ ์ €์žฅํ•  ์ˆ˜ ์žˆ๋Š” ์ •๋ณด์˜ ๋†€๋ผ์šด ์–‘์ž…๋‹ˆ๋‹ค.
02:53
in so little space.
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๊ทธ๊ฒƒ๋„ ๋งค์šฐ ์ž‘์€ ๊ณต๊ฐ„ ์•ˆ์— ๋ง์ด์ฃ .
02:55
The current theoretical limit of DNA'S storage capacity is so high
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ํ˜„์žฌ ์ด๋ก ์ ์œผ๋กœ DNA์˜ ์ €์žฅ ๋Šฅ๋ ฅ์€ ๋งค์šฐ ๋†’์•„์„œ
02:59
that you could fit 100 million HD movies on a pencil eraser.
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์ง€์šฐ๊ฐœ ํ•˜๋‚˜์— 1์–ต ๊ฐœ์˜ ๊ณ ํ™”์งˆ ์˜ํ™”๋ฅผ ์ €์žฅํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
03:05
It's even conceivable that one day we could fit all of the information
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์šฐ๋ฆฌ๋Š” ์–ธ์  ๊ฐ€ ์‹ ๋ฐœ ์ƒ์ž ํ•˜๋‚˜ ์•ˆ์—
03:09
currently on the Internet
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ํ˜„์žฌ ์ธํ„ฐ๋„ท ์ƒ์˜ ๋ชจ๋“  ์ •๋ณด๋ฅผ
03:10
into the space of a shoe box.
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์ €์žฅํ•  ์ˆ˜ ์žˆ์Œ์„ ์ƒ์ƒํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
03:13
Also, computers and the magnetic tape and discs that their information is stored on
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๋˜ํ•œ, ์ปดํ“จํ„ฐ์™€ ์ž๊ธฐ ํ…Œ์ดํ”„, ๊ทธ๋ฆฌ๊ณ  ๋””์Šคํฌ ์•ˆ์— ์ €์žฅ๋˜์–ด ์žˆ๋Š” ์ •๋ณด๋Š”
03:18
only last for a few decades, at most, before degrading and becoming unreliable.
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๊ธฐ๊ปํ•ด์•ผ ์„ฑ๋Šฅ์ด ์ €ํ•˜๋˜๊ธฐ ์ „์— 20๋…„ ๋™์•ˆ๋งŒ ์œ ์ง€๋ฉ๋‹ˆ๋‹ค.
03:26
Meanwhile, DNA has a half-life of 500 years,
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ํ•œํŽธ, DNA๋Š” 500๋…„์˜ ๋ฐ˜๊ฐ๊ธฐ๋ฅผ ๊ฐ–๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
03:30
meaning that's how long it takes for half of its bonds to break.
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๋ฐ˜๊ฐ๊ธฐ๋Š” ๊ทธ ๊ฒฐ์†์ด ๋ฐ˜๋งŒํผ ํŒŒ๊ดด๋˜๋Š”๋ฐ ์–ผ๋งˆ๋‚˜ ๊ฑธ๋ฆฌ๋Š”์ง€๋ฅผ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค
03:34
And if left in a cold and dark environment,
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๊ทธ๋ฆฌ๊ณ  ๊ทธ๊ฒƒ์„ ์ฐจ๊ฐ‘๊ณ  ์–ด๋‘์šด ํ™˜๊ฒฝ์— ๋ณด๊ด€ํ•˜๋ฉด
03:37
DNA could potentially last for hundreds of thousands of years.
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DNA๋Š” ์ˆ˜์‹ญ๋งŒ ๋…„ ๋™์•ˆ ์œ ์ง€๋  ๊ฐ€๋Šฅ์„ฑ์ด ์žˆ์Šต๋‹ˆ๋‹ค.
03:43
And if that isn't long enough,
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๊ทธ๋ฆฌ๊ณ  ๋งŒ์•ฝ ๊ทธ๊ฒƒ์ด ์ถฉ๋ถ„ํžˆ ๊ธธ์ง€ ์•Š๋‹ค๋ฉด
03:44
scientists experimented with having synthetic DNA auto-reproduce.
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๊ณผํ•™์ž๋“ค์€ ์ธ์กฐ DNA๋ฅผ ์ž๊ฐ€ ์žฌ์ƒ์‚ฐ ์‹œํ‚ค๋Š” ์‹คํ—˜์„ ํ–ˆ์Šต๋‹ˆ๋‹ค.
03:50
After creating their own strands of DNA
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"๊ทธ๊ฒƒ์€ ์ž‘์€ ์„ธ์ƒ"์ด๋ผ๋Š” ์•„์ด๋“ค์˜ ๋…ธ๋ž˜ ๊ฐ€์‚ฌ๋ฅผ ์ „๋ถ€ ์“ด
03:53
that spelled out the lyrics to the children's song "It's a Small World,"
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DNA์˜ ๊ฐ€๋‹ฅ์„ ์ƒ์‚ฐํ•œ ๋’ค์—
03:56
they placed them into the genome of a microbe nicknamed Conan the Bacterium.
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๊ทธ๊ฒƒ์„ ์„ธ๊ท  ์ฝ”๋‚œ์ด๋ผ๋Š” ๋ณ„๋ช…์˜ ๋ฏธ์ƒ๋ฌผ ์œ ์ „์ž์— ๋†“์•˜์Šต๋‹ˆ๋‹ค.
04:02
Conan belongs to a species which can survive in a vacuum,
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์ฝ”๋‚œ์€ ์ง„๊ณต์—์„œ๋„ ์‚ด์•„๋‚จ์„ ์ˆ˜ ์žˆ๋Š” ์ข…์— ์†ํ–ˆ์œผ๋ฉฐ,
04:06
or without water, for six years,
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๋ฌผ ์—†์ด 6๋…„ ๋™์•ˆ,
04:09
or come out unscathed after being exposed to a dose of radiation
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๋˜๋Š” ์‚ฌ๋žŒ์„ 1000๋ฒˆ ์ฃฝ์ผ ๋งŒํผ์˜
04:14
1,000 times that which would kill a human.
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๋ฐฉ์‚ฌ๋Šฅ์— ๋…ธ์ถœ๋˜์–ด๋„ ๋ฉ€์ฉกํ•˜๊ฒŒ ๋‚จ์•„์žˆ์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
04:18
According to the experiment,
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์‹คํ—˜์— ๋”ฐ๋ฅด๋ฉด,
04:20
the bacterium was able to reproduce at least 100 generations without data loss.
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๊ทธ ์„ธ๊ท ์€ ๋ฐ์ดํ„ฐ ์†์‹ค ์—†์ด, ์ ์–ด๋„ 100์„ธ๋Œ€๋ฅผ ์žฌ์ƒ์‚ฐํ•  ์ˆ˜ ์žˆ๋‹ค๊ณ  ํ•ฉ๋‹ˆ๋‹ค.
04:27
Theoretically, if the organism had redundant copies of the information
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์ด๋ก ์ ์œผ๋กœ, ๋งŒ์•ฝ ๊ทธ ์œ ๊ธฐ์ฒด๊ฐ€ ์ •๋ณด๋ฅผ ๋ณต์ œํ•ด์„œ ๊ฐ–๊ณ  ์žˆ๋Š”๋ฐ
04:31
that could be used to automatically correct mistakes,
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์ž๋™์œผ๋กœ ์˜ค๋ฅ˜๋ฅผ ๊ณ ์น˜๋Š”๋ฐ ์“ธ ์ˆ˜ ์žˆ๋‹ค๋ฉด
04:34
the information could stay preserved even longer.
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๊ทธ ์ •๋ณด๋Š” ๋” ์˜ค๋ž˜ ๋ณด์กด๋˜์—ˆ์„ ๊ฒƒ์ž…๋‹ˆ๋‹ค.
04:38
So one day, you might be able to create a living, growing, knowledge archive
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๋”ฐ๋ผ์„œ ์–ด๋А ๋‚  ์—ฌ๋Ÿฌ๋ถ„์€ ์‚ด์•„์žˆ๊ณ , ์ž๋ผ๋‚˜๋Š” ์ง€์‹ ์ €์žฅ๊ณ ๋ฅผ ๋งŒ๋“ค ์ˆ˜ ์žˆ์„์ง€๋„ ๋ชจ๋ฆ…๋‹ˆ๋‹ค.
04:43
in your own backyard,
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์—ฌ๋Ÿฌ๋ถ„์˜ ๋’ท๋งˆ๋‹น์—์„œ ๋ง์ด์ฃ .
04:46
and its seeds might carry your family's history,
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๊ทธ๋ฆฌ๊ณ  ๊ทธ ์”จ์•—์€ ์—ฌ๋Ÿฌ๋ถ„ ๊ฐ€์กฑ์˜ ์—ญ์‚ฌ๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ์„ ์ˆ˜ ์žˆ์„์ง€๋„ ๋ชจ๋ฆ…๋‹ˆ๋‹ค.
04:49
a detailed breakdown of the world's political upheavals,
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๊ฒฉ๋ณ€ํ•˜๋Š” ์„ธ์ƒ์˜ ์ •์น˜์ ์ธ ์ž์„ธํ•œ ๋ฌธ์ œ๋‚˜,
04:52
or the sum of humanity's knowledge into forests and across continents.
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์ธ๋ฅ˜์˜ ์ง€์‹์˜ ํ•ฉ์„ ์ˆฒ๊ณผ ๋Œ€๋ฅ™์„ ๊ฐ€๋กœ์งˆ๋Ÿฌ ์šด๋ฐ˜ํ•  ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค.
04:58
Perhaps even into the far reaches of space.
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๋จผ ์šฐ์ฃผ๊นŒ์ง€ ๋„๋‹ฌ ํ•  ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค.
05:02
Though we might one day disappear, perhaps our legacy can still live on,
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๋น„๋ก ์šฐ๋ฆฌ๊ฐ€ ์–ด๋А๋‚  ์‚ฌ๋ผ์ง€๋”๋ผ๋„, ์šฐ๋ฆฌ์˜ ์œ ์‚ฐ์€ ์—ฌ์ „ํžˆ ๋‚จ์•„์žˆ์„ ๊ฒ๋‹ˆ๋‹ค.
05:06
if anyone would think to find it.
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๋งŒ์•ฝ ๋ˆ„๊ตฐ๊ฐ€ ๊ทธ๊ฒƒ์„ ์ฐพ์„ ์ƒ๊ฐ์ด ์žˆ๋‹ค๋ฉด ๋ง์ด์ฃ .
์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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