What time is it on Mars? | Nagin Cox

133,902 views ใƒป 2017-02-24

TED


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

๋ฒˆ์—ญ: Seo-Ho Cho ๊ฒ€ํ† : Jihyeon J. Kim
00:12
So many of you have probably seen the movie "The Martian."
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๋‹ค์ˆ˜์˜ ์—ฌ๋Ÿฌ๋ถ„๋“ค์€ ์•„๋งˆ๋„ ์˜ํ™” "๋งˆ์…˜"์„ ๋ณด์…จ์„ ๊ฒƒ์ž…๋‹ˆ๋‹ค.
00:16
But for those of you who did not, it's a movie about an astronaut
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๋ณด์ง€ ๋ชปํ•œ ๋ถ„๋“ค์„ ์œ„ํ•ด ์„ค๋ช…ํ•˜์ž๋ฉด
์˜ํ™”๋Š” ํ™”์„ฑ์— ๊ฐ‡ํžŒ ํ•œ ์šฐ์ฃผ๋น„ํ–‰์‚ฌ์™€
00:20
who is stranded on Mars, and his efforts to stay alive
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๊ทธ๊ฐ€ ๊ตฌ์กฐ๋Œ€๊ฐ€ ๋„์ฐฉํ•  ๋•Œ๊นŒ์ง€ ํ•˜๋Š” ์ƒ์กด์„ ์œ„ํ•œ ๋…ธ๋ ฅ์— ๋Œ€ํ•œ ์ด์•ผ๊ธฐ์ž…๋‹ˆ๋‹ค.
00:25
until the Earth can send a rescue mission to bring him back to Earth.
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00:31
Gladly, they do re-establish communication
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๊ธฐ์˜๊ฒŒ๋„, ๊ทธ๋“ค์€ ์ฃผ์ธ๊ณต ์šฐ์ฃผ๋น„ํ–‰์‚ฌ์ธ ์™€ํŠธ๋‹ˆ์™€์˜ ํ†ต์‹ ์„
00:34
with the character, astronaut Watney, at some point
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์–ด๋Š ์‹œ์ ์— ๊ฒฐ๊ตญ ๋ณต๊ตฌํ–ˆ์Šต๋‹ˆ๋‹ค.
00:36
so that he's not as alone on Mars until he can be rescued.
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๊ทธ๋ž˜์„œ ๊ทธ๋Š” ๊ตฌ์กฐ๋  ๋•Œ๊นŒ์ง€ ํ˜ผ์ž๊ฐ€ ์•„๋‹ˆ์—ˆ์Šต๋‹ˆ๋‹ค.
00:42
So while you're watching the movie, or even if you haven't,
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๊ทธ๋Ÿฌ๋ฏ€๋กœ ์—ฌ๋Ÿฌ๋ถ„๋“ค์ด ์˜ํ™”๋ฅผ ๋ณด๊ณ  ์žˆ๋Š” ์ค‘์ด๊ฑฐ๋‚˜, ๋ณด์‹œ์ง€ ์•Š์•˜๋”๋ผ๋„
00:45
when you think about Mars,
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ํ™”์„ฑ์— ๋Œ€ํ•ด ์ƒ๊ฐํ•  ๋•Œ, ์—ฌ๋Ÿฌ๋ถ„๋“ค์€ ์•„๋งˆ ๊ทธ๊ณณ์ด
00:46
you're probably thinking about how far away it is and how distant.
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์–ผ๋งˆ๋‚˜ ๋ฉ€๊ณ  ์–ผ๋งˆ๋‚˜ ๋–จ์–ด์ ธ ์žˆ๋Š”์ง€์— ๋Œ€ํ•ด์„œ ์ƒ๊ฐํ•  ๊ฒƒ์ž…๋‹ˆ๋‹ค.
00:51
And, what might not have occurred to you is,
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๊ทธ๋ฆฌ๊ณ  ์•„๋งˆ ์—ฌ๋Ÿฌ๋ถ„๋“ค์˜ ๋จธ๋ฆฟ์†์— ๋– ์˜ค๋ฅด์ง€ ์•Š์€ ๊ฒƒ์€
00:54
what are the logistics really like of working on another planet --
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๋‹ค๋ฅธ ํ–‰์„ฑ์—์„œ ์ผํ•˜๋Š” ๊ฒƒ์˜ ์„ธ๋ถ€๊ณ„ํš์€ ์‹ค์ œ๋กœ ์–ด๋–ค์ง€
00:58
of living on two planets
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์ฆ‰, ๋‘ ํ–‰์„ฑ์—์„œ์˜ ์‚ถ์ด ์–ด๋–จ์ง€์— ๊ด€ํ•œ ๊ฒƒ์ด๊ฒ ์ฃ .
01:00
when there are people on the Earth and there are rovers or people on Mars?
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์ง€๊ตฌ์— ์‚ฌ๋žŒ์ด ์žˆ์„ ๋•Œ์™€ ํ™”์„ฑ์—์„œ ํƒ์‚ฌ์ž๋‚˜ ์‚ฌ๋žŒ์ด ์žˆ์„ ๋•Œ ๋ง์ž…๋‹ˆ๋‹ค.
01:06
So think about when you have friends, families and co-workers
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์—ฌ๋Ÿฌ๋ถ„์˜ ์นœ๊ตฌ๋“ค์ด๋‚˜ ๊ฐ€์กฑ, ๋™๋ฃŒ๋“ค์ด
01:10
in California, on the West Coast or in other parts of the world.
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์บ˜๋ฆฌํฌ๋‹ˆ์•„์—, ์„œ๋ถ€์—, ํ˜น์€ ์ง€๊ตฌ์ƒ ๋‹ค๋ฅธ ๊ณณ์— ์žˆ๋‹ค๊ณ  ์ƒ๊ฐํ•ด๋ณด์‹ญ์‹œ์˜ค.
01:14
When you're trying to communicate with them,
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๊ทธ๋“ค๊ณผ ์†Œํ†ตํ•˜๋ ค ํ•œ๋‹ค๋ฉด
01:16
one of the things you probably first think about is:
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์—ฌ๋Ÿฌ๋ถ„์ด ์ฒ˜์Œ ์ƒ๊ฐํ•˜๋Š” ๊ฒƒ์€ ์•„๋งˆ
01:18
wait, what time is it in California?
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"์บ˜๋ฆฌํฌ๋‹ˆ์•„๋Š” ์ง€๊ธˆ ๋ช‡์‹œ์ง€?
01:20
Will I wake them up? Is it OK to call?
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๋‚ด๊ฐ€ ๊นจ์šฐ๋Š” ๊ฒƒ์€ ์•„๋‹๊นŒ? ์ง€๊ธˆ ์ „ํ™”ํ•ด๋„ ๋˜๋‚˜?"์ผ ๊ฒ๋‹ˆ๋‹ค.
01:23
So even if you're interacting with colleagues who are in Europe,
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์—ฌ๋Ÿฌ๋ถ„์ด ์œ ๋Ÿฝ์— ์žˆ๋Š” ๋™๋ฃŒ์™€ ์—ฐ๋ฝํ•˜๋ ค ํ•  ๋•Œ๋„
01:27
you're immediately thinking about:
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์ฆ‰์‹œ ์ด๊ฑธ ์ƒ๊ฐํ•  ๊ฒ๋‹ˆ๋‹ค.
01:29
What does it take to coordinate communication when people are far away?
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์‚ฌ๋žŒ๋“ค์ด ๋ฉ€๋ฆฌ ๋–จ์–ด์ ธ ์žˆ๋‹ค๋ฉด ์–ด๋–ป๊ฒŒ ์†Œํ†ต์„ ๊ฐ€๋Šฅ์ผ€ ํ•  ์ˆ˜ ์žˆ์„๊นŒ์š”?
01:36
So we don't have people on Mars right now, but we do have rovers.
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์•„์ง์€ ํ™”์„ฑ์— ์‚ฌ๋žŒ์ด ์—†์ง€๋งŒ, ํƒ์‚ฌ์„ ์€ ์žˆ์Šต๋‹ˆ๋‹ค.
01:42
And actually right now, on Curiosity, it is 6:10 in the morning.
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๊ทธ๋ฆฌ๊ณ  ์ง€๊ธˆ ์ด ์ˆœ๊ฐ„, ํ๋ฆฌ์–ด์‹œํ‹ฐ๋Š” ์•„์นจ 6์‹œ 10๋ถ„์ž…๋‹ˆ๋‹ค.
01:47
So, 6:10 in the morning on Mars.
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ํ™”์„ฑ์ด ์ง€๊ธˆ ์•„์นจ 6์‹œ 10๋ถ„์ด๋ผ๋Š” ๊ฒƒ์ด์ฃ .
01:50
We have four rovers on Mars.
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ํ™”์„ฑ์—๋Š” ๋„ค ๊ฐœ์˜ ํƒ์‚ฌ์„ ์ด ์žˆ์Šต๋‹ˆ๋‹ค.
01:52
The United States has put four rovers on Mars since the mid-1990s,
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๋ฏธ๊ตญ์€ 1990๋…„๋Œ€ ์ค‘๋ฐ˜๋ถ€ํ„ฐ ์ง€๊ธˆ๊นŒ์ง€ ํ™”์„ฑ์— ๋„ค ๊ฐœ์˜ ํƒ์‚ฌ์„ ์„ ๋ณด๋ƒˆ์Šต๋‹ˆ๋‹ค.
01:56
and I have been privileged enough to work on three of them.
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๊ทธ๋ฆฌ๊ณ  ์ €๋Š” ์šด ์ข‹๊ฒŒ๋„ ๊ทธ ์ค‘ ์„ธ ๊ฐœ์˜ ํƒ์‚ฌ์„ ์—์„œ ์ผํ•  ์ˆ˜ ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค.
02:00
So, I am a spacecraft engineer, a spacecraft operations engineer,
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์ €๋Š” ์บ˜๋ฆฌํฌ๋‹ˆ์•„ LA์— ์žˆ๋Š” ๋‚˜์‚ฌ์˜ ์ œํŠธ ์ถ”์ง„๋ ฅ ์—ฐ๊ตฌ์†Œ์—์„œ
02:05
at NASA's Jet Propulsion Laboratory in Los Angeles, California.
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์šฐ์ฃผ์„  ๊ณตํ•™์ž, ์ฆ‰ ์šฐ์ฃผ์„  ์šดํ•ญ ๊ณตํ•™์ž๋กœ ์ผํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
02:10
And these rovers are our robotic emissaries.
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๊ทธ๋ฆฌ๊ณ  ์ด ํƒ์‚ฌ์„ ๋“ค์€ ์ €ํฌ์˜ ๋กœ๋ด‡ ์‚ฌ์ ˆ๋‹จ์ž…๋‹ˆ๋‹ค.
02:14
So, they are our eyes and our ears, and they see the planet for us
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์ €ํฌ์˜ ๋ˆˆ๊ณผ ๊ท€๊ฐ€ ๋˜์–ด์ฃผ๊ณ  ์ €ํฌ๋ฅผ ๋Œ€์‹ ํ•ด์„œ ํ–‰์„ฑ์„ ๋ด์ค๋‹ˆ๋‹ค.
02:21
until we can send people.
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์ €ํฌ๊ฐ€ ์‚ฌ๋žŒ์„ ๋ณด๋‚ผ ์ˆ˜ ์žˆ์„ ๋•Œ ๊นŒ์ง€์š”.
02:23
So we learn how to operate on other planets through these rovers.
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์ €ํฌ๋Š” ํƒ์‚ฌ์„ ์„ ํ†ตํ•ด ๋‹ค๋ฅธ ํ–‰์„ฑ์—์„œ ์–ด๋–ป๊ฒŒ ํ•ด์•ผ ํ•˜๋Š”์ง€๋ฅผ ์•Œ๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
02:28
So before we send people, we send robots.
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์‚ฌ๋žŒ์„ ๋ณด๋‚ด๊ธฐ ์ „์—, ๋กœ๋ด‡์„ ๋ณด๋‚ด์ฃ .
02:33
So the reason there's a time difference on Mars right now,
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์ง€๊ธˆ ์šฐ๋ฆฌ์˜ ์‹œ๊ฐ„๊ณผ ํ™”์„ฑ์˜ ์‹œ๊ฐ„ ์‚ฌ์ด์—
02:37
from the time that we're at
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์‹œ์ฐจ๊ฐ€ ์กด์žฌํ•˜๋Š” ์ด์œ ๋Š”
02:38
is because the Martian day is longer than the Earth day.
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ํ™”์„ฑ์ธ์˜ ํ•˜๋ฃจ๋Š” ์ง€๊ตฌ์—์„œ์˜ ํ•˜๋ฃจ๋ณด๋‹ค ๊ธธ๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
02:42
Our Earth day is 24 hours,
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์ง€๊ตฌ์—์„œ๋Š” ํ•˜๋ฃจ๊ฐ€ 24์‹œ๊ฐ„์ž…๋‹ˆ๋‹ค.
02:45
because that's how long it takes the Earth to rotate,
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์™œ๋ƒํ•˜๋ฉด ์ง€๊ตฌ๊ฐ€ ๊ณต์ „ํ•˜๊ธฐ๊นŒ์ง€ ๊ทธ๋งŒํผ์˜ ์‹œ๊ฐ„์ด ๊ฑธ๋ฆฌ๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
02:48
how long it takes to go around once.
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ํ•œ๋ฐ”ํ€ด ๋„๋Š”๋ฐ ๊ฑธ๋ฆฌ๋Š” ์‹œ๊ฐ„์ด์ฃ .
02:51
So our day is 24 hours.
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๊ทธ๋ ‡๊ธฐ์— ์šฐ๋ฆฌ์˜ ํ•˜๋ฃจ๋Š” 24์‹œ๊ฐ„์ธ ๊ฒƒ์ž…๋‹ˆ๋‹ค.
02:53
It takes Mars 24 hours and approximately 40 minutes to rotate once.
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ํ™”์„ฑ์ด ํ•œ ๋ฒˆ ๊ณต์ „ํ•˜๊ธฐ๊นŒ์ง€ 24์‹œ๊ฐ„๊ณผ ๋Œ€๋žต 40๋ถ„์ด ๋” ๊ฑธ๋ฆฝ๋‹ˆ๋‹ค.
03:00
So that means that the Martian day is 40 minutes longer than the Earth day.
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ํ™”์„ฑ์ธ์˜ ํ•˜๋ฃจ๊ฐ€ ์ง€๊ตฌ์˜ ํ•˜๋ฃจ๋ณด๋‹ค 40๋ถ„์ด ๋” ๊ฑธ๋ฆฐ๋‹ค๋Š” ๋œป์ด์ฃ .
03:07
So teams of people who are operating the rovers on Mars, like this one,
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๊ทธ๋ž˜์„œ ์ด ํŒ€๊ณผ ๊ฐ™์ด ํ™”์„ฑ์— ์žˆ๋Š” ํƒ์‚ฌ์„ ์„ ์—ฐ๊ตฌํ•˜๋Š” ํŒ€์€
03:12
what we are doing is we are living on Earth, but working on Mars.
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์ง€๊ตฌ์— ์‚ด์ง€๋งŒ ํ™”์„ฑ์—์„œ ์ผํ•˜๊ณ  ์žˆ๋Š” ๊ฒƒ๊ณผ ๋งˆ์ฐฌ๊ฐ€์ง€์ž…๋‹ˆ๋‹ค.
03:17
So we have to think as if we are actually on Mars with the rover.
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๊ทธ๋ž˜์„œ ์ €ํฌ๋Š” ์ €ํฌ๊ฐ€ ํƒ์‚ฌ์„ ๊ณผ ํ•จ๊ป˜ ์‹ค์ œ๋กœ ํ™”์„ฑ์— ์žˆ๋‹ค๊ณ  ์ƒ๊ฐํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.
03:23
Our job, the job of this team, of which I'm a part of,
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์ €ํฌ์˜ ์ž„๋ฌด, ์ œ๊ฐ€ ์ฐธ์—ฌํ•˜๊ณ  ์žˆ๋Š” ์ €ํฌ ํŒ€์˜ ์ž„๋ฌด๋Š”
03:27
is to send commands to the rover to tell it what to do the next day.
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๋‹ค์Œ๋‚  ๋ฌด์—‡์„ ํ• ์ง€์™€ ๊ด€๋ จํ•œ ๋ช…๋ น์„ ํƒ์‚ฌ์„ ์— ๋ณด๋‚ด๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
03:33
To tell it to drive or drill or tell her whatever she's supposed to do.
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์šด์ „์„ ์ง€์‹œํ•˜๊ธฐ๋„ ํ•˜๊ณ , ๋“œ๋ฆด์„ ๋šซ๊ธฐ๋„ ํ•˜๊ณ , ํ•„์š”ํ•œ ๊ฒƒ์„ ์ง€์‹œํ•ฉ๋‹ˆ๋‹ค.
03:37
So while she's sleeping -- and the rover does sleep at night
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๋ฐฐํ„ฐ๋ฆฌ๋ฅผ ์ถฉ์ „ํ•ด์•ผ ํ•˜๊ณ 
03:41
because she needs to recharge her batteries
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๋ฐค๋™์•ˆ ํ™”์„ฑ์˜ ์ถ”์šด ์˜จ๋„๋ฅผ ๊ฒฌ๋””๊ธฐ ์œ„ํ•ด
03:44
and she needs to weather the cold Martian night.
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ํƒ์‚ฌ์„ ๋„ ๋ฐค์—๋Š” ์ž ์„ ์žก๋‹ˆ๋‹ค.
03:48
And so she sleeps.
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๊ทธ๋ž˜์„œ ํƒ์‚ฌ์„ ์ด ์ž๋Š” ๋™์•ˆ์€
03:49
So while she sleeps, we work on her program for the next day.
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์ €ํฌ๋Š” ๋‹ค์Œ๋‚ ์„ ์œ„ํ•œ ํƒ์‚ฌ์„ ์˜ ํ”„๋กœ๊ทธ๋žจ ์ž‘์—…์„ ์ˆ˜ํ–‰ํ•ฉ๋‹ˆ๋‹ค.
03:54
So I work the Martian night shift.
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ํ™”์„ฑ์ธ ์•ผ๊ทผ์„ ํ•˜๊ฒŒ ๋˜๋Š” ๊ฒƒ์ด์ฃ .
03:57
(Laughter)
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(์›ƒ์Œ)
03:59
So in order to come to work on the Earth at the same time every day on Mars --
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๊ทธ๋ž˜์„œ ํ™”์„ฑ์—์„œ์˜ ์‹œ๊ฐ„์— ๋งž์ถฐ ๋งค์ผ ์ง€๊ตฌ์ƒ์— ์ถœ๊ทผํ•˜๊ธฐ ์œ„ํ•ด์„œ๋Š”
04:05
like, let's say I need to be at work at 5:00 p.m.,
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๊ฐ€๋ น, ์ œ๊ฐ€ ์˜คํ›„ 5์‹œ์— ์ง์žฅ์— ์žˆ์–ด์•ผ ํ•œ๋‹ค๊ณ  ๊ฐ€์ •ํ•ฉ์‹œ๋‹ค.
04:08
this team needs to be at work at 5:00 p.m. Mars time every day,
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์ €ํฌ ํŒ€์€ ํ™”์„ฑ ์‹œ๊ฐ„์œผ๋กœ ์˜คํ›„ 5์‹œ์— ๋งค์ผ ์ง์žฅ์— ์žˆ์–ด์•ผ ํ•˜๋Š”๋ฐ, ์ฆ‰
04:13
then we have to come to work on the Earth 40 minutes later every day,
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์ €ํฌ๊ฐ€ ๋งค์ผ ์ง€๊ตฌ์˜ ์‹œ๊ฐ„์œผ๋กœ 40๋ถ„์”ฉ ๋Šฆ๊ฒŒ ์ถœ๊ทผํ•ด์•ผ ํ•จ์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค.
04:21
in order to stay in sync with Mars.
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ํ™”์„ฑ์˜ ์‹œ๊ฐ„๊ณผ ๋งž์ถ”๊ธฐ ์œ„ํ•ด์„œ์ฃ .
04:24
That's like moving a time zone every day.
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๊ทธ๊ฒƒ์€ ๋งค์ผ ์‹œ๊ฐ„๋Œ€๋ฅผ ์˜ฎ๊ธฐ๋Š” ๊ฒƒ๊ณผ ๋งˆ์ฐฌ๊ฐ€์ง€์ž…๋‹ˆ๋‹ค.
04:27
So one day you come in at 8:00, the next day 40 minutes later at 8:40,
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๊ทธ๋ž˜์„œ ํ•˜๋ฃจ๋Š” 8์‹œ์— ์ถœ๊ทผํ•˜๊ฒŒ ๋˜๊ณ  ๋‹ค์Œ๋‚ ์€ 40๋ถ„ ๋’ค์ธ 8์‹œ 40๋ถ„์—
04:32
the next day 40 minutes later at 9:20,
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์ถœ๊ทผํ•˜๊ณ , ๋‹ค์Œ๋‚ ์€ 40๋ถ„ ๋’ค์ธ 9์‹œ 20๋ถ„์— ์ถœ๊ทผํ•˜๊ณ ,
04:35
the next day at 10:00.
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๋‹ค์Œ๋‚ ์€ 10์‹œ์— ์ถœ๊ทผํ•ฉ๋‹ˆ๋‹ค.
04:37
So you keep moving 40 minutes every day,
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๋งค์ผ 40๋ถ„์”ฉ ๋Šฆ์ถฐ๊ฐ„๋‹ค๋ฉด
04:41
until soon you're coming to work in the middle of the night --
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๊ฒฐ๊ตญ ํ•œ๋ฐค์ค‘์— ์ถœ๊ทผํ•˜๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
04:44
the middle of the Earth night.
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์ง€๊ตฌ์˜ ์‹œ๊ฐ„์œผ๋กœ ํ•œ๋ฐค์ค‘์— ๋ง์ž…๋‹ˆ๋‹ค.
04:45
Right? So you can imagine how confusing that is.
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๋งž์ฃ ? ์ด๊ฒŒ ์–ผ๋งˆ๋‚˜ ํ—ท๊ฐˆ๋ฆฌ๋Š” ์ผ์ธ์ง€ ์ง์ž‘์ด ๊ฐ€์‹ค ๊ฒ๋‹ˆ๋‹ค.
04:49
Hence, the Mars watch.
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๊ทธ๋Ÿฌ๋ฏ€๋กœ ํ™”์„ฑ ์‹œ๊ณ„๊ฐ€ ํ•„์š”ํ•œ ๊ฒƒ์ด์ฃ .
04:51
(Laughter)
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(์›ƒ์Œ)
04:52
This weights in this watch have been mechanically adjusted
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์ด ์‹œ๊ณ„์˜ ๋ฌด๊ฒŒ๋Š” ๊ธฐ๊ณ„์ ์œผ๋กœ ์กฐ์ •๋˜์–ด์„œ
04:56
so that it runs more slowly.
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๊ณ„์†ํ•ด์„œ ์ฒœ์ฒœํžˆ ์ž‘๋™ํ•˜๋„๋ก ๋˜์–ด์žˆ์Šต๋‹ˆ๋‹ค.
04:58
Right? And we didn't start out --
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๋งž์ฃ ?
05:00
I got this watch in 2004
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์ €๋Š” ์ด ์‹œ๊ณ„๋ฅผ 2004๋…„์— ๊ฐ–๊ฒŒ ๋˜์—ˆ์Šต๋‹ˆ๋‹ค.
05:03
when Spirit and Opportunity, the rovers back then.
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๊ทธ ๋‹น์‹œ ํƒ์‚ฌ์„ ์ด์—ˆ๋˜ ์Šคํ”ผ๋ฆฟ๊ณผ ์˜คํผํŠœ๋‹ˆํ‹ฐ๊ฐ€ ์žˆ์—ˆ์„ ๋•Œ์š”.
05:06
We didn't start out thinking
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์ฒ˜์Œ๋ถ€ํ„ฐ ํ™”์„ฑ ์‹œ๊ณ„๊ฐ€ ํ•„์š”ํ• 
05:08
that we were going to need Mars watches.
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๊ฒƒ์ด๋ผ๊ณ  ์ถ”์ธกํ•˜์ง€๋Š” ๋ชปํ–ˆ์Šต๋‹ˆ๋‹ค.
05:10
Right? We thought, OK, we'll just have the time on our computers
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์ปดํ“จํ„ฐ์—๋งŒ ์‹œ๊ณ„๋ฅผ ๋„์›Œ๋†“๊ณ 
05:14
and on the mission control screens, and that would be enough.
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ํ†ต์ œ์‹ค ์Šคํฌ๋ฆฐ์— ๋„์›Œ๋†“์œผ๋ฉด ์ถฉ๋ถ„ํ•  ๊ฒƒ์ด๋ผ๊ณ  ์ƒ๊ฐํ–ˆ์ฃ .
05:18
Yeah, not so much.
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๊ทธ๋ ‡์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค.
05:20
Because we weren't just working on Mars time,
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์ €ํฌ๊ฐ€ ๋‹จ์ง€ ํ™”์„ฑ์˜ ์‹œ๊ฐ„์— ๋งž์ถฐ ์ผํ•˜๋Š” ๊ฒƒ์ด ์•„๋‹ˆ๋ผ,
05:22
we were actually living on Mars time.
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์ €ํฌ๋Š” ์‹ค์ œ ํ™”์„ฑ์˜ ์‹œ๊ฐ„์„ ์‚ฌ๋Š” ๊ฒƒ๊ณผ ๋งˆ์ฐฌ๊ฐ€์ง€์˜€๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
05:26
And we got just instantaneously confused about what time it was.
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๊ทธ๋ฆฌ๊ณ  ์ €ํฌ๋Š” ์ˆœ๊ฐ„์ˆœ๊ฐ„ ๋ช‡์‹œ์ธ์ง€ ํ—ท๊ฐˆ๋ ธ์Šต๋‹ˆ๋‹ค.
05:30
So you really needed something on your wrist to tell you:
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๊ทธ๋ž˜์„œ ์†๋ชฉ์— ์‹œ๊ฐ„์„ ์•Œ๋ ค์ค„ ๋ฌด์—‡์ธ๊ฐ€๊ฐ€ ํ•„์š”ํ–ˆ์Šต๋‹ˆ๋‹ค.
05:34
What time is it on the Earth? What time is it on Mars?
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์ง€๊ตฌ๋Š” ์ง€๊ธˆ ๋ช‡์‹œ์ธ์ง€ ํ™”์„ฑ์€ ๋ช‡์‹œ์ธ์ง€๋ฅผ ๋ง์ž…๋‹ˆ๋‹ค.
05:37
And it wasn't just the time on Mars that was confusing;
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๋‹จ์ง€ ํ™”์„ฑ์˜ ์‹œ๊ฐ„๋งŒ์ด ํ—ท๊ฐˆ๋ฆฐ ๊ฒƒ์ด ์•„๋‹™๋‹ˆ๋‹ค.
05:43
we also needed to be able to talk to each other about it.
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์ €ํฌ๋Š” ์„œ๋กœ ์†Œํ†ต์„ ํ•ด์•ผ ํ–ˆ์Šต๋‹ˆ๋‹ค.
05:49
So a "sol" is a Martian day -- again, 24 hours and 40 minutes.
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'์†”'์ด ํ™”์„ฑ์—์„œ์˜ ํ•˜๋ฃจ๋ฅผ ์˜๋ฏธํ•˜๋Š”๋ฐ, ์ฆ‰ 24์‹œ๊ฐ„ 40๋ถ„์ด์ฃ .
05:54
So when we're talking about something that's happening on the Earth,
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๊ทธ๋ž˜์„œ ์ง€๊ตฌ์—์„œ ์ผ์–ด๋‚˜๋Š” ์ผ์— ๋Œ€ํ•ด ์–˜๊ธฐํ• ๋•Œ์—๋Š”
05:58
we will say, today.
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์ €ํฌ๋Š” '์˜ค๋Š˜'์ด๋ผ๊ณ  ํ•˜๊ณ 
06:00
So, for Mars, we say, "tosol."
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ํ™”์„ฑ์„ ์œ„ํ•ด์„œ๋Š” '์˜ค์†”'์ด๋ผ๋Š” ํ‘œํ˜„์„ ์ผ์Šต๋‹ˆ๋‹ค.
06:02
(Laughter)
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(์›ƒ์Œ)
06:05
Yesterday became "yestersol" for Mars.
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'์ „๋‚ '์ด๋ผ๋Š” ํ‘œํ˜„์€ ํ™”์„ฑ์—์„œ๋Š” '์ „์†”'์ด๋ผ๊ณ  ํ‘œํ˜„ํ–ˆ์Šต๋‹ˆ๋‹ค.
06:10
Again, we didn't start out thinking, "Oh, let's invent a language."
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์ด๊ฒƒ ์—ญ์‹œ๋„, ์ €ํฌ๋Š” ์ฒ˜์Œ๋ถ€ํ„ฐ '์ƒˆ๋กœ์šด ์–ธ์–ด๋ฅผ ๋งŒ๋“ค์ž'๋ผ๋ฉฐ ์‹œ์ž‘ํ•˜์ง€
06:15
It was just very confusing.
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์•Š์•˜์Šต๋‹ˆ๋‹ค. ๊ทธ์ € ๋„ˆ๋ฌด ํ˜ผ๋ž€์Šค๋Ÿฌ์› ์ฃ .
06:16
I remember somebody walked up to me and said,
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๋ˆ„๊ตฐ๊ฐ€ ์ œ๊ฒŒ ์™€์„œ
06:18
"I would like to do this activity on the vehicle tomorrow, on the rover."
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'์ด๊ฒƒ์„ ๋‚ด์ผ ํƒ์‚ฌ์„ ์—์„œ ์ˆ˜ํ–‰ํ•ด๋ณด๊ณ  ์‹ถ์Šต๋‹ˆ๋‹ค'๋ผ๊ณ 
06:22
And I said, "Tomorrow, tomorrow, or Mars, tomorrow?"
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๋งํ•œ ์ ์ด ์žˆ๋Š”๋ฐ, ์ €๋Š” '๋‚ด์ผ ๋‚ด์ผ์ด์•ผ ์•„๋‹ˆ๋ฉด ํ™”์„ฑ์˜ ๋‚ด์ผ์ด์•ผ?'๋ผ๊ณ  ๋ฌผ์—ˆ์–ด์š”
06:27
We started this terminology because we needed a way to talk to each other.
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์„œ๋กœ ์†Œํ†ต์„ ํ•˜๊ธฐ ์œ„ํ•ด ์ƒˆ๋กœ์šด ์–ธ์–ด๊ฐ€ ํ•„์š”ํ–ˆ๋˜ ๊ฒƒ์ž…๋‹ˆ๋‹ค.
06:32
(Laughter)
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(์›ƒ์Œ)
06:34
Tomorrow became "nextersol" or "solorrow."
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๋‚ด์ผ์€ "๋‹ค์Œ์†”" ํ˜น์€ "์†”์ผ"์ด ๋ฉ๋‹ˆ๋‹ค.
06:39
Because people have different preferences for the words they use.
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์™œ๋ƒํ•˜๋ฉด ์‚ฌ๋žŒ๋“ค๋งˆ๋‹ค ์„ ํ˜ธํ•˜๋Š” ๋‹จ์–ด๊ฐ€ ๋‹ค๋ฅด๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
06:42
Some of you might say "soda" and some of you might say "pop."
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๋ˆ„๊ตฐ๊ฐ€๋Š” "์†Œ๋‹ค"๋ผ๊ณ  ๋งํ• ๊ฑฐ๊ณ , ๋ˆ„๊ตฐ๊ฐ€๋Š” "ํƒ„์‚ฐ"์ด๋ผ๊ณ  ํ•˜๊ฒ ์ฃ .
06:46
So we have people who say "nextersol" or "solorrow."
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๊ทธ๋ž˜์„œ ํ˜น์ž๋Š” "๋‹ค์Œ์†”" ํ˜น์€ "์†”์ผ"์ด๋ผ ํ•˜์ฃ 
06:50
And then something that I noticed after a few years of working on these missions,
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์ œ๊ฐ€ ์ด ๋ฏธ์…˜์— ์ฐธ์—ฌํ•œ ํ›„ ์•Œ๊ฒŒ ๋œ ๊ฒƒ์€
06:55
was that the people who work on the rovers, we say "tosol."
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ํƒ์‚ฌ์„ ์—์„œ ์ผํ•˜๋Š” ์‚ฌ๋žŒ๋“ค์€ "์˜ค์†”"์ด๋ผ๊ณ  ๋งํ•œ๋‹ค๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
07:00
The people who work on the landed missions that don't rove around,
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์ฐฉ๋ฅ™ ๋ฏธ์…˜์— ์ฐธ์—ฌํ•˜์ง€๋งŒ, ๋กœ๋ฒ„๋ฅผ ํƒ€์ง€ ์•Š๋Š” ์‚ฌ๋žŒ๋“ค์€
07:03
they say "tosoul."
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"์˜ค์†Œ์šธ"์ด๋ผ๊ณ  ํ•˜๊ณ ์š”.
07:05
So I could actually tell what mission you worked on from your Martian accent.
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์ €๋Š” ๋‹น์‹ ์˜ ํ™”์„ฑ์ธ ์•…์„ผํŠธ๋ฅผ ํ†ตํ•ด ์–ด๋–ค ๋ฏธ์…˜์— ์ฐธ์—ฌํ–ˆ๋Š”์ง€ ์•Œ ์ˆ˜ ์žˆ์ฃ .
07:10
(Laughter)
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(์›ƒ์Œ)
07:13
So we have the watches and the language, and you're detecting a theme here, right?
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์ง€๊ธˆ ์‹œ๊ณ„์™€ ์–ธ์–ด๊ฐ€ ๋‚˜์™”์Šต๋‹ˆ๋‹ค. ์ฃผ์ œ์— ๋Œ€ํ•œ ๊ฐ์ด ์˜ค์‹œ์ฃ ?
07:17
So that we don't get confused.
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์ €ํฌ๊ฐ€ ํ—ท๊ฐˆ๋ฆฌ๋ฉด ์•ˆ๋˜๋‹ˆ๊นŒ์š”.
07:20
But even the Earth daylight could confuse us.
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ํ•˜์ง€๋งŒ ์‹ฌ์ง€์–ด๋Š” ์ง€๊ตฌ์˜ ํ–‡๋น›๋„ ์ €ํฌ๋ฅผ ํ—ท๊ฐˆ๋ฆฌ๊ฒŒ ํ•ฉ๋‹ˆ๋‹ค.
07:24
If you think that right now, you've come to work
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๋งŒ์•ฝ ์ง€๊ธˆ ๋‹น์žฅ ์—ฌ๋Ÿฌ๋ถ„์ด ์ง์žฅ์— ๋‚˜์™”๊ณ 
07:26
and it's the middle of the Martian night
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๊ทธ ์‹œ๊ฐ„์ด ํ™”์„ฑ์˜ ์‹œ๊ฐ„์œผ๋กœ๋Š” ํ•œ๋ฐค์ค‘์ด๋ผ๊ณ  ์ƒ๊ฐํ•œ๋‹ค๋ฉด
07:28
and there's light streaming in from the windows
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ํ•˜์ง€๋งŒ ์ฐฝ๋ฌธ์„ ํ†ตํ•ด์„œ๋Š” ๋น›์ด ๋“ค์–ด์˜ค๊ณ  ์žˆ๋‹ค๋ฉด
07:32
that's going to be confusing as well.
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๊ทธ๊ฒƒ์€ ์—ญ์‹œ๋‚˜ ํ—ท๊ฐˆ๋ฆฌ๋Š” ์ผ์ผ ๊ฒƒ์ž…๋‹ˆ๋‹ค.
07:34
So you can see from this image of the control room
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ํ†ต์ œ์‹ค์˜ ์‚ฌ์ง„์—์„œ ๋ณด์ด๋“ฏ์ด
07:37
that all of the blinds are down.
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๊ทธ๋ ‡๊ธฐ์— ๋ชจ๋“  ๋ธ”๋ผ์ธ๋“œ๊ฐ€ ์ณ์ ธ ์žˆ๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
07:39
So that there's no light to distract us.
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๋น›์ด ์ €ํฌ๋ฅผ ๋ฐฉํ•ดํ•˜๋ฉด ์•ˆ๋˜๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
07:42
The blinds went down all over the building about a week before landing,
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์ฐฉ๋ฅ™ ์ผ์ฃผ ์ „ ์ฆˆ์Œ์— ๋ชจ๋“  ๋นŒ๋”ฉ์˜ ๋ธ”๋ผ์ธ๋“œ๊ฐ€ ์ณ์กŒ๊ณ 
07:47
and they didn't go up until we went off Mars time.
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ํ™”์„ฑ์˜ ์‹œ๊ฐ„์„ ๋”ฐ๋ฅด๋Š” ๊ฒƒ์ด ๋๋‚œ ํ›„์—์•ผ ๋ธ”๋ผ์ธ๋“œ๋ฅผ ๋‹ค์‹œ ๊ฑท์—ˆ์Šต๋‹ˆ๋‹ค.
07:50
So this also works for the house, for at home.
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์ด๊ฒƒ์€ ์ง‘์—์„œ๋„ ๋งˆ์ฐฌ๊ฐ€์ง€์ž…๋‹ˆ๋‹ค.
07:54
I've been on Mars time three times, and my husband is like,
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์ €๋Š” ์„ธ ๋ฒˆ ํ™”์„ฑ์˜ ์‹œ๊ฐ„์— ๋งž์ถฐ ์ผํ–ˆ์—ˆ๊ณ , ์ œ ๋‚จํŽธ์€ ์ด์ œ๋Š”
07:56
OK, we're getting ready for Mars time.
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'์•Œ์•˜์–ด. ํ™”์„ฑ ์‹œ๊ฐ„์„ ์ค€๋น„ํ•˜๋Š”๊ตฌ๋‚˜.' ๋ผ๊ณ  ๋ฐ˜์‘ํ•ฉ๋‹ˆ๋‹ค.
07:58
And so he'll put foil all over the windows and dark curtains and shades
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๊ทธ๋ฆฌ๊ณ ๋Š” ์ฐฝ๋ฌธ์— ํ˜ธ์ผ์„ ๋ถ™์ด๊ณ , ์•”๋ง‰๊ณผ ๋ธ”๋ผ์ธ๋“œ๋ฅผ ๋‚ด๋ฆฝ๋‹ˆ๋‹ค.
08:04
because it also affects your families.
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์ด๊ฒƒ์€ ์ €ํฌ์˜ ๊ฐ€์กฑ์—๊ฒŒ๊นŒ์ง€ ์˜ํ–ฅ์„ ๋ฏธ์นฉ๋‹ˆ๋‹ค.
08:08
And so here I was living in kind of this darkened environment, but so was he.
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์ €๋Š” ์–ด๋‘์›Œ์ง„ ํ™˜๊ฒฝ์—์„œ ์‚ด๊ฒŒ ๋˜์—ˆ๊ณ , ์ œ ๋‚จํŽธ๋„ ๋งˆ์ฐฌ๊ฐ€์ง€์˜€์Šต๋‹ˆ๋‹ค.
08:13
And he'd gotten used to it.
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๊ทธ๋ฆฌ๊ณ  ๋‚จํŽธ๋„ ์ด์ œ๋Š” ์ ์‘ํ–ˆ์Šต๋‹ˆ๋‹ค.
08:14
But then I would get these plaintive emails from him when he was at work.
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๊ทธ๋ฆฌ๊ณ  ๋‚จํŽธ์ด ํšŒ์‚ฌ์— ์žˆ์„ ๋•Œ ์ด๋Ÿฐ ์• ์ฒ˜๋กœ์šด ์ด๋ฉ”์ผ์„ ๋ฐ›๊ณค ํ–ˆ์Šต๋‹ˆ๋‹ค.
08:19
Should I come home? Are you awake?
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"๋‚ด๊ฐ€ ์ง‘์— ๊ฐ€์•ผํ• ๊นŒ? ์ง€๊ธˆ ์ผ์–ด๋‚ฌ์–ด?
08:22
What time is it on Mars?
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์ง€๊ธˆ ํ™”์„ฑ์€ ๋ช‡์‹œ์•ผ?"
08:25
And I decided, OK, so he needs a Mars watch.
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๊ทธ๋ž˜์„œ ์ €๋Š” ์ƒ๊ฐํ–ˆ์ฃ . ๋‚จํŽธ์—๊ฒŒ ํ™”์„ฑ์‹œ๊ณ„๊ฐ€ ํ•„์š”ํ•˜๋‹ค๋Š” ๊ฒƒ์„์š”.
08:28
(Laughter)
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(์›ƒ์Œ)
08:29
But of course, it's 2016, so there's an app for that.
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๋ฌผ๋ก  ์ง€๊ธˆ์€ 2016๋…„์ด๊ธฐ์— ์–ดํ”Œ์ด ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค.
08:34
(Laughter)
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(์›ƒ์Œ)
08:35
So now instead of the watches, we can also use our phones.
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์ด์ œ๋Š” ์‹œ๊ณ„ ๋Œ€์‹ ์—, ์ €ํฌ๋Š” ํ•ธ๋“œํฐ์„ ์“ธ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
08:40
But the impact on families was just across the board;
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๊ฐ€์กฑ ์ „๋ฐ˜์—๊ฒŒ ์˜ํ–ฅ์„ ๋ฏธ์ณค์Šต๋‹ˆ๋‹ค.
08:44
it wasn't just those of us who were working on the rovers
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๋‹จ์ง€ ํƒ์‚ฌ์„  ๊ด€๋ จ ์ผ์„ ํ•˜๋Š” ์ €ํฌ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ
08:48
but our families as well.
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์ €ํฌ ๊ฐ€์กฑ๋“ค์—๊ฒŒ๋„ ์˜ํ–ฅ์„ ๋ฏธ์ณค์Šต๋‹ˆ๋‹ค.
08:50
This is David Oh, one of our flight directors,
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์ด ์‚ฌ๋žŒ์€ ๋ฐ์ด๋น„๋“œ ์˜ค ์ž…๋‹ˆ๋‹ค. ๋น„ํ–‰ ๊ฐ๋… ์ค‘ ํ•œ ๋ช…์ž…๋‹ˆ๋‹ค.
08:53
and he's at the beach in Los Angeles with his family at 1:00 in the morning.
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์ง€๊ธˆ ๊ทธ๋Š” ๊ฐ€์กฑ๋“ค๊ณผ ์ƒˆ๋ฒฝ ํ•œ์‹œ์— LA์˜ ํ•ด๋ณ€์— ์žˆ์Šต๋‹ˆ๋‹ค.
08:57
(Laughter)
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(์›ƒ์Œ)
08:58
So because we landed in August
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์ €ํฌ๊ฐ€ 8์›”์— ์ฐฉ๋ฅ™ํ•˜์˜€๊ณ 
09:01
and his kids didn't have to go back to school until September,
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๊ทธ์˜ ์•„์ด๋“ค์€ 9์›”๊นŒ์ง€ ๋ฐฉํ•™์ด์—ˆ์Šต๋‹ˆ๋‹ค.
09:06
they actually went on to Mars time with him for one month.
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๊ทธ๋ž˜์„œ ์•„์ด๋“ค๋„ ์•„๋ฒ„์ง€์™€ ํ•จ๊ป˜ ํ•œ๋‹ฌ๊ฐ„ ํ™”์„ฑ์˜ ์‹œ๊ฐ„์„ ๊ฒฝํ—˜ํ–ˆ์Šต๋‹ˆ๋‹ค.
09:11
They got up 40 minutes later every day.
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๊ทธ๋“ค์€ ๋งค์ผ 40๋ถ„์”ฉ ๋Šฆ๊ฒŒ ์ผ์–ด๋‚ฌ์Šต๋‹ˆ๋‹ค.
09:15
And they were on dad's work schedule.
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๊ทธ๋ฆฌ๊ณ  ์•„๋ฒ„์ง€์˜ ์Šค์ผ€์ค„์„ ๋”ฐ๋ž์Šต๋‹ˆ๋‹ค.
09:18
So they lived on Mars time for a month and had these great adventures,
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๊ทธ๋“ค์€ ํ•œ๋‹ฌ๊ฐ„ ํ™”์„ฑ์˜ ์‹œ๊ฐ„์— ๋งž์ถฐ ์‚ด๋ฉฐ ์—„์ฒญ๋‚œ ๋ชจํ—˜๋“ค์„ ํ•˜์˜€์Šต๋‹ˆ๋‹ค.
09:22
like going bowling in the middle of the night
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ํ•œ๋ฐค์ค‘์— ๋ณผ๋ง๋„ ์น˜๊ณ 
09:24
or going to the beach.
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ํ•ด๋ณ€์—๋„ ๊ฐ”์ฃ .
09:25
And one of the things that we all discovered
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์ €ํฌ๊ฐ€ ๋ฐœ๊ฒฌํ•œ ๊ฒƒ์ด ํ•˜๋‚˜ ์žˆ๋‹ค๋ฉด
09:29
is you can get anywhere in Los Angeles
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์ƒˆ๋ฒฝ ์„ธ์‹œ์˜ LA๋Š” ์ฐจ๊ฐ€ ํ•˜๋‚˜๋„ ์—†๊ธฐ์—
09:33
at 3:00 in the morning when there's no traffic.
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์›ํ•˜๋Š” ๊ณณ ์–ด๋””๋“  ๊ฐˆ ์ˆ˜ ์žˆ๋‹ค๋Š” ๊ฒƒ์ด์ฃ .
09:36
(Laughter)
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(์›ƒ์Œ)
09:38
So we would get off work,
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๊ทธ๋ž˜์„œ ์ €ํฌ๋Š” ์ผ์ด ๋๋‚œ ํ›„
09:39
and we didn't want to go home and bother our families,
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์ง‘์— ๊ฐ€์„œ ๊ฐ€์กฑ๋“ค์„ ๊ท€์ฐฎ๊ฒŒ ํ•˜๊ณ  ์‹ถ์ง€ ์•Š์•˜์ง€๋งŒ
09:42
and we were hungry, so instead of going locally to eat something,
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๋ฐฐ๋Š” ๊ณ ํŒ ๊ธฐ์— ๋™๋„ค์—์„œ ๋ฌด์—‡์ธ๊ฐ€๋ฅผ ๋จน์—ˆ์–ด์š”.
09:46
we'd go, "Wait, there's this great all-night deli in Long Beach,
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์ €ํฌ๋Š” "์ž ๊น, ์ €๊ธฐ ์ •๋ง ๋ง›์žˆ๋Š” 24์‹œ ๋ธ๋ฆฌ์ง‘์ด ๋กฑ๋น„์น˜์— ์žˆ์–ด.
09:49
and we can get there in 10 minutes!"
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์‹ญ๋ถ„์•ˆ์— ๊ฐˆ ์ˆ˜ ์žˆ์–ด." ๋ผ ํ•˜๊ณค ํ–ˆ์ฃ .
09:51
So we would drive down -- it was like the 60s, no traffic.
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60๋…„๋Œ€๋ผ์„œ ์ฐจ๊ฐ€ ์ •๋ง ์—†์—ˆ๊ฑฐ๋“ ์š”.
09:54
We would drive down there, and the restaurant owners would go,
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๊ทธ๋ž˜์„œ ์ €ํฌ๊ฐ€ ์šด์ „ํ•ด์„œ ๊ฐ€๋ฉด, ์‹๋‹น ์ฃผ์ธ์€ ์ €ํฌ์—๊ฒŒ
09:58
"Who are you people?
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'๋‹น์‹ ๋“ค์€ ๋ˆ„๊ตฌ์‹ญ๋‹ˆ๊นŒ
10:01
And why are you at my restaurant at 3:00 in the morning?"
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์™œ ์ƒˆ๋ฒฝ ์„ธ์‹œ์— ์‹๋‹น์— ์˜ค์‹œ๋Š” ๊ฒ๋‹ˆ๊นŒ'๋ผ ๋ฌผ์—ˆ์ฃ .
10:05
So they came to realize that there were these packs of Martians,
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๊ทธ๋ž˜์„œ ๊ทธ๋“ค์€ ์ €ํฌ๊ฐ€ ํ•œ๋ฐค์ค‘์— LA ์ž์œ ๋กœ๋ฅผ ํ™œ๋ณดํ•˜๋Š”
10:11
roaming the LA freeways, in the middle of the night --
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ํ™”์„ฑ์ธ ๋ฌด๋ฆฌ์ž„์„ ์•Œ๊ฒŒ ๋˜์—ˆ์ฃ .
10:17
in the middle of the Earth night.
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์ง€๊ตฌ์˜ ์‹œ๊ฐ„์œผ๋กœ ํ•œ ๋ฐค ์ค‘์—์š”.
10:19
And we did actually start calling ourselves Martians.
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๊ทธ๋ฆฌ๊ณ  ์ €ํฌ๋Š” ์ €ํฌ ์Šค์Šค๋กœ๋ฅผ ์ •๋ง ํ™”์„ฑ์ธ์ด๋ผ๊ณ  ๋ถ€๋ฅด๊ธฐ ์‹œ์ž‘ํ–ˆ์–ด์š”.
10:24
So those of us who were on Mars time would refer to ourselves as Martians,
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๊ทธ๋ž˜์„œ ํ™”์„ฑ์˜ ์‹œ๊ฐ„์„ ๋”ฐ๋ฅด๋Š” ์‚ฌ๋žŒ๋“ค์€ ์Šค์Šค๋กœ๋ฅผ ํ™”์„ฑ์ธ์ด๋ผ๊ณ  ๋ถˆ๋ €๊ณ 
10:30
and everyone else as Earthlings.
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๋‚˜๋จธ์ง€ ๋ชจ๋“  ์‚ฌ๋žŒ๋“ค์€ ์ง€๊ตฌ์กฑ์ด๋ผ๊ณ  ํ–ˆ์ฃ .
10:32
(Laughter)
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(์›ƒ์Œ)
10:34
And that's because when you're moving a time-zone every day,
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์™œ๋ƒ๋ฉด ๋‹น์‹ ์ด ๋งŒ์•ฝ ์‹œ๊ฐ„๋Œ€๋ฅผ ๋งค์ผ ์˜ฎ๊ธด๋‹ค๋ฉด
10:39
you start to really feel separated from everyone else.
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๋‹น์‹ ์€ ๋‚˜๋จธ์ง€ ์‚ฌ๋žŒ๋“ค๊ณผ์˜ ๋ถ„๋ฆฌ๋ฅผ ๋Š๋ผ๊ธฐ ์‹œ์ž‘ํ•  ๊ฑฐ์˜ˆ์š”.
10:45
You're literally in your own world.
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๋ง๊ทธ๋Œ€๋กœ ๋‹น์‹ ์˜ ์„ธ๊ณ„์— ์žˆ๋Š” ๊ฒƒ์ด์ฃ .
10:50
So I have this button on that says, "I survived Mars time. Sol 0-90."
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์ „ ์ด๋ ‡๊ฒŒ ์จ์žˆ๋Š” ๋ฒ„ํŠผ์„ ๊ฐ–๊ณ  ์žˆ์–ด์š” "์ „ ํ™”์„ฑ์˜ ์‹œ๊ฐ„์—์„œ ์‚ด์•„๋‚จ์•˜์Šต๋‹ˆ๋‹ค.
10:57
And there's a picture of it up on the screen.
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์†” 0-90." ์ €๊ธฐ ์‚ฌ์ง„์ด ์žˆ๋„ค์š”.
11:00
So the reason we got these buttons is because we work on Mars time
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์ด ๋ฒ„ํŠผ์„ ๊ฐ–๊ณ  ์žˆ๋Š” ์ด์œ ๋Š” ์ €ํฌ๊ฐ€ ์‹œ๊ฐ„์„ ์ตœ๋Œ€ํ•œ ํ™œ์šฉํ•˜์—ฌ
11:05
in order to be as efficient as possible with the rover on Mars,
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ํ™”์„ฑ์˜ ๋กœ๋ฒ„๋ฅผ ๊ฐ€์žฅ ํšจ์œจ์ ์œผ๋กœ ๋‹ค๋ฃจ๊ธฐ ์œ„ํ•ด์„œ๋Š”
11:10
to make the best use of our time.
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ํ™”์„ฑ์˜ ์‹œ๊ฐ„์— ๋”ฐ๋ผ ์ผํ•˜๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
11:13
But we don't stay on Mars time for more than three to four months.
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ํ•˜์ง€๋งŒ ์ €ํฌ๋Š” 3-4๊ฐœ์›”์„ ๋„˜๊ฒŒ ํ™”์„ฑ์˜ ์‹œ๊ฐ„์— ๋จธ๋ฌผ๋Ÿฌ์žˆ์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
11:17
Eventually, we'll move to a modified Mars time, which is what we're working now.
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๊ฒฐ๊ตญ์€ ์ €ํฌ๋Š” ์ง€๊ธˆ ์—ฐ๊ตฌํ•˜๊ณ  ์žˆ๋Š”, ์ˆ˜์ •๋œ ํ™”์„ฑ์˜ ์‹œ๊ฐ„์œผ๋กœ ์˜ฎ๊ธธ ๊ฒ๋‹ˆ๋‹ค.
11:22
And that's because it's hard on your bodies, it's hard on your families.
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์™œ๋ƒ๋ฉด ์ด๊ฒƒ์€ ์ €ํฌ์˜ ์‹ ์ฒด์—๋„, ๊ฐ€์กฑ๋“ค์—๊ฒŒ๋„ ํž˜๋“  ์ผ์ด๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
11:26
In fact, there were sleep researchers who actually were studying us
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์‹ค์ œ๋กœ ์ˆ˜๋ฉด ์—ฐ๊ตฌ์ง„๋“ค์ด ์ €ํฌ๋ฅผ ์—ฐ๊ตฌํ•˜๊ธฐ๋„ ํ–ˆ์Šต๋‹ˆ๋‹ค.
11:31
because it was so unusual for humans to try to extend their day.
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์™œ๋ƒํ•˜๋ฉด ์ธ๊ฐ„์ด ํ•˜๋ฃจ๋ฅผ ๋Š˜๋ฆฌ๋ ค ํ•˜๋Š”๊ฒƒ์€ ๋น„์ •์ƒ์ ์ด๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
11:37
And they had about 30 of us
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๊ทธ๋ž˜์„œ ์•ฝ 30์—ฌ๋ช…์˜ ์ €ํฌ ์—ฐ๊ตฌ์ง„์— ๋Œ€ํ•ด
11:38
that they would do sleep deprivation experiments on.
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๊ทธ๋“ค์ด ๋ถˆ๋ฉด์ฆ ์‹คํ—˜์„ ํ–ˆ์—ˆ์Šต๋‹ˆ๋‹ค.
11:42
So I would come in and take the test and I fell asleep in each one.
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๊ทธ๋ž˜์„œ ์ €๋Š” ์‹คํ—˜์„ ์œ„ํ•ด ๋“ค์–ด๊ฐ€์„œ๋Š” ๋งค๋ฒˆ ์ž ์— ๋“ค๊ณค ํ–ˆ์Šต๋‹ˆ๋‹ค.
11:45
And that was because, again, this eventually becomes hard on your body.
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๋งํ–ˆ๋“ฏ์ด, ๊ฒฐ๊ตญ์€ ์ด ์ƒํ™œ์ด ์‹ ์ฒด์— ๋ฌด๋ฆฌ๊ฐ€ ๊ฐ€๋Š” ์ผ์ด๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
11:52
Even though it was a blast.
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๋ฌผ๋ก  ์ •๋ง ์žฌ๋ฏธ์žˆ์—ˆ์ง€๋งŒ์š”.
11:55
It was a huge bonding experience with the other members on the team,
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ํŒ€์›๋“ค๊ณผ๋„ ์œ ๋Œ€๊ฐ์„ ์Œ“์„ ์ˆ˜ ์žˆ๋Š” ๊ต‰์žฅํžˆ ์ข‹์€ ๊ฒฝํ—˜์ด์—ˆ์Šต๋‹ˆ๋‹ค.
12:00
but it is difficult to sustain.
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ํ•˜์ง€๋งŒ ์œ ์ง€ํ•˜๊ธฐ๋Š” ์–ด๋ ค์› ์ฃ .
12:04
So these rover missions are our first steps out into the solar system.
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์ด ํƒ์‚ฌ์„  ๋ฏธ์…˜์€ ํƒœ์–‘๊ณ„๋ฅผ ํ–ฅํ•œ ์ €ํฌ์˜ ์ฒซ ๊ฑธ์Œ์ž…๋‹ˆ๋‹ค.
12:10
We are learning how to live on more than one planet.
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์ €ํฌ๋Š” ํ•˜๋‚˜ ์ด์ƒ์˜ ํ–‰์„ฑ์— ์–ด๋–ป๊ฒŒ ์‚ด ์ˆ˜ ์žˆ์„์ง€๋ฅผ ์—ฐ๊ตฌ์ค‘์ž…๋‹ˆ๋‹ค.
12:15
We are changing our perspective to become multi-planetary.
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์ €ํฌ๋Š” ๋‹คํ–‰์„ฑ์ธ์ด ๋˜๊ธฐ์œ„ํ•ด ๊ด€์ ์„ ๋ฐ”๊พธ๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
12:20
So the next time you see a Star Wars movie,
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๊ทธ๋Ÿฌ๋‹ˆ ๋‹ค์Œ๋ฒˆ์— ์Šคํƒ€์›Œ์ฆˆ ์˜ํ™”๋ฅผ ๋ณผ ๋•Œ
12:23
and there are people going from the Dagobah system to Tatooine,
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์ธ๋ฌผ๋“ค์ด ๋‹ค๊ณ ๋ฐ”์‹œ์Šคํ…œ์—์„œ ํƒ€ํˆฌ์ธ์œผ๋กœ ๊ฐ€๋Š” ์žฅ๋ฉด์ด ์žˆ๋‹ค๋ฉด, ์‚ฌ๋žŒ๋“ค์ด ๊ทธ๋ ‡๊ฒŒ
12:27
think about what it really means to have people spread out so far.
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๊ด‘๋ฒ”์œ„ํ•˜๊ฒŒ ๋ถ„ํฌํ•˜๊ฒŒ ๋˜๋Š” ๊ฒƒ์ด ์–ด๋–ค ์˜๋ฏธ์ผ์ง€ ์ƒ๊ฐํ•ด๋ณด์‹ญ์‹œ์˜ค.
12:32
What it means in terms of the distances between them,
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๊ทธ๋“ค ์‚ฌ์ด์— ๋ฐœ์ƒํ•˜๋Š” ๊ฑฐ๋ฆฌ์™€
12:35
how they will start to feel separate from each other
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๊ทธ๋“ค์ด ์„œ๋กœ๊ฐ„์— ๋Š๋‚„ ๋‹จ์ ˆ๊ฐ๊ณผ
12:39
and just the logistics of the time.
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์‹œ๊ฐ„์˜ ์ฐจ์ด์— ๋Œ€ํ•ด ๋ง์ž…๋‹ˆ๋‹ค.
12:43
We have not sent people to Mars yet, but we hope to.
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์ €ํฌ๋Š” ์•„์ง ์‚ฌ๋žŒ์„ ํ™”์„ฑ์— ๋ณด๋‚ด์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค. ํ•˜์ง€๋งŒ ๊ทธ๋Ÿฌ๊ธธ ํฌ๋งํ•ฉ๋‹ˆ๋‹ค.
12:48
And between companies like SpaceX and NASA
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๊ทธ๋ฆฌ๊ณ  SpaceX์™€ NASA
12:52
and all of the international space agencies of the world,
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๊ทธ ์™ธ ์ „์„ธ๊ณ„ ์šฐ์ฃผ ๊ธฐ๊ด€๋“ค์„ ์ƒ๊ฐํ–ˆ์„ ๋•Œ
12:55
we hope to do that in the next few decades.
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๋ช‡์‹ญ๋…„ ์•ˆ์— ๊ทธ๋Ÿด ๋‚ ์ด ์˜ค๊ธฐ๋ฅผ ๊ธฐ๋Œ€ํ•ฉ๋‹ˆ๋‹ค.
12:59
So soon we will have people on Mars, and we truly will be multi-planetary.
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์šฐ๋ฆฌ๋Š” ๊ณง ํ™”์„ฑ์— ์‚ฌ๋žŒ์„ ๋ณด๋‚ผ ๊ฒƒ์ด๊ณ , ์šฐ๋ฆฌ๋Š” ์ง„์ •์œผ๋กœ ๋‹คํ–‰์„ฑ์ด ๋  ๊ฒƒ์ž…๋‹ˆ๋‹ค.
13:05
And the young boy or the young girl
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๊ทธ๋ฆฌ๊ณ  ํ™”์„ฑ์œผ๋กœ ๊ฐ€๊ฒŒ ๋  ์–ด๋ฆฐ ์†Œ๋…„ ์†Œ๋…€๋“ค์€
13:08
who will be going to Mars could be in this audience or listening today.
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์ง€๊ธˆ ๊ด€๊ฐ ์ค‘ ์žˆ์„์ˆ˜๋„ ์žˆ๊ณ , ์˜ค๋Š˜ ์ด ๊ฐ•์—ฐ์„ ๋“ฃ๊ณ ์žˆ์„ ์ˆ˜๋„ ์žˆ์ฃ .
13:16
I have wanted to work at JPL on these missions since I was 14 years old
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์ €๋Š” 14์‚ด ๋•Œ๋ถ€ํ„ฐ JPL์—์„œ ์ด ์ผ์„ ํ•˜๊ณ  ์‹ถ์–ด ํ–ˆ์Šต๋‹ˆ๋‹ค.
13:21
and I am privileged to be a part of it.
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๊ทธ๋ฆฌ๊ณ  ์ €๋Š” ์ด ์ผ์— ์ฐธ์—ฌํ•  ์ˆ˜ ์žˆ์–ด ์˜๊ด‘์ž…๋‹ˆ๋‹ค.
13:23
And this is a remarkable time in the space program,
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์šฐ์ฃผ ๊ด€๋ จ ์—ฐ๊ตฌ๋ฅผ ํ•˜๊ธฐ์— ์ตœ์ ์˜ ์‹œ๊ธฐ์— ์‚ด๊ณ  ์žˆ๊ณ ,
13:27
and we are all in this journey together.
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์šฐ๋ฆฌ๋Š” ๋ชจ๋‘ ์ด ์—ฌ์ •์„ ํ•จ๊ป˜ํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
13:31
So the next time you think you don't have enough time in your day,
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๊ทธ๋Ÿฌ๋‹ˆ ๋‹ค์Œ๋ฒˆ์— ๋‹น์‹ ์ด ํ•˜๋ฃจ๊ฐ€ ๋„ˆ๋ฌด ์งง๋‹ค๊ณ  ๋Š๋‚„ ๋•Œ๋ฉด,
13:36
just remember, it's all a matter of your Earthly perspective.
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๊ทธ๊ฒƒ์€ ๋‹จ์ง€ ์ง€๊ตฌ์กฑ์˜ ๊ด€์ ์—์„œ ํ•˜๋Š” ์ƒ๊ฐ์ž„์„ ๊ธฐ์–ตํ•˜์„ธ์š”.
13:41
Thank you.
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๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค.
13:42
(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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