I leapt from the stratosphere. Here's how I did it | Alan Eustace

311,749 views ・ 2015-09-28

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譯者: Marssi Draw 審譯者: Regina Chu
00:12
So I grew up in Orlando, Florida.
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我在佛羅里達的奧蘭多長大。
00:16
I was the son of an aerospace engineer.
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身為航太工程師之子,
00:19
I lived and breathed the Apollo program.
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我的生活就是阿波羅計畫。
00:22
We either saw the launches from our backyard
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我們不是在後院看太空船升空,
00:24
or we saw it by driving in the hour over to the Cape.
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就是開車一小時到基地去看它。
00:27
I was impressed by, obviously, space and everything about it,
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顯然我對太空和所有相關的事 都印象深刻,
00:30
but I was most impressed by the engineering that went into it.
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但我最難忘的是當中的工程學。
00:34
Behind me you see an amazing view,
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大家可以看到我背後的奇景,
00:37
a picture that was taken from the International Space Station,
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這張照片是在國際太空站上拍的,
00:41
and it shows a portion of our planet
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展現了地球的一部分,
00:43
that's rarely seen and rarely studied
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這一面少有人見,也少有人研究,
00:46
and almost never explored.
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而且幾乎無人探索過。
00:48
That place is called the stratosphere.
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那個地方就稱為平流層。
00:50
If you start on the planet and you go up and up and up,
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如果你從地表開始 一路不斷向上爬升,
00:54
it gets colder and colder and colder,
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會變得越來越冷,
00:56
until you reach the beginning of the stratosphere,
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直到你抵達平流層下端,
00:59
and then an amazing thing happens.
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就會發生一件神奇的事。
01:01
It gets colder at a much slower rate, and then it starts warming up,
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變冷的速度慢多了, 然後會開始變暖和,
01:05
and then it gets warmer and warmer
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變得越來越暖,
01:07
until the point where you can almost survive without any protection,
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直到你不需任何防護 也能活下來的程度,
01:12
about zero degrees,
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大概是零度,
01:14
and then you end up getting colder and colder,
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然後你又會變得越來越冷,
01:17
and that's the top of the stratosphere.
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就到了平流層頂。
01:19
It is one of the least accessible places on our planet.
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那是地球上極少人 能前往的地方。
01:23
Most often, when it's visited,
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如果有人能到那裡,
01:25
it's by astronauts who are blazing up at it
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通常都是太空人被發射上去,
01:29
at probably several times the speed of sound,
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大概比音速快幾倍,
01:32
and they get a few seconds on the way up,
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向上經過的時間就幾秒,
01:34
and then they get this blazing ball of fire coming back in,
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然後他們回來的時候 會有一團火球,
01:39
on the way back in.
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在回程途中。
01:41
But the question I asked is, is it possible to linger in the stratosphere?
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我想問的是, 有可能在平流層停留嗎?
01:45
Is it possible to experience the stratosphere?
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有可能在平流層體驗看看嗎?
01:47
Is it possible to explore the stratosphere?
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有可能在平流層探險嗎?
我打了通電話——
01:54
I studied this using my favorite search engine
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我用最喜歡的搜尋引擎 研究這件事
01:57
for quite a while, about a year,
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持續了一陣子,大概一年,
02:00
and then I made a scary phone call.
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後來我打了一通很嚇人的電話。
02:04
It was a reference from a friend of mine to call Taber MacCallum
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朋友推薦我打給泰伯.麥卡倫,
02:07
from Paragon Space Development Corporation,
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完美太空發展公司的那位,
02:10
and I asked him the question:
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我問他:
02:11
is it possible to build
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有可能建造
02:16
a system to go into the stratosphere?
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能進入平流層的裝置嗎?
02:18
And he said it was.
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他說可以。
02:19
And after a period of about three years, we proceeded to do just that.
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大概有三年的時間, 我們持續朝那個方向努力。
02:26
And on October 24 of last year,
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去年 10 月 24 日,
02:29
in this suit,
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我穿上這套服裝,
02:31
I started on the ground,
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從地面開始,
02:33
I went up in a balloon to 135,890 feet --
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乘著氣球向上升 42.42 公里,
02:40
but who's counting?
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管它的,誰去算啊?
02:41
(Laughter)
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(笑聲)
02:44
Came back to Earth at speeds of up to 822 miles an hour.
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回到地球的時速高達 1322 公里。
02:49
It was a four-minute and 27-second descent.
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降落歷經 4 分 27 秒。
02:53
And when I got to 10,000 feet, I opened a parachute and I landed.
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剩三公里的時候 我打開降落傘著陸。
02:58
(Applause)
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(掌聲)
03:06
But this is really a science talk, and it's really an engineering talk,
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但其實這是科學演說, 是工程學演說,
03:10
and what was amazing to me about that experience
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對我來說最不可思議的是這實驗
03:12
is that Taber said, yes, I think we can build a stratospheric suit,
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如同泰伯所說,沒錯, 我認為我們可以打造平流層服裝,
03:17
and more than that, come down tomorrow
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更重要的是,明天過來,
03:19
and let's talk to the team that formed the core of the group
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我們和這組團隊的核心人物談談,
03:22
that actually built it.
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他們親手打造一切。
03:24
And they did something which I think is important,
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他們做了一件我認為很重要的事,
03:28
which is they took the analogy of scuba diving.
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就是模擬水肺潛水。
03:32
So in scuba diving,
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水肺潛水的時候,
03:33
you have a self-contained system.
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你會有一套獨立完備的系統。
03:35
You have everything that you could ever need.
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你需要用到的一樣也不少:
03:38
You have a scuba tank.
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氣瓶、
03:40
You have a wetsuit.
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溼式防寒衣、
03:43
You have visibility.
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能見度。
03:44
And that scuba is exactly this system,
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那潛水其實就是這套系統,
03:47
and we're going to launch it into the stratosphere.
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我們打算將它發射到平流層裡。
03:50
Three years later, this is what we have.
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這是我們三年後的成品。
03:54
We've got an amazing suit that was made by ILC Dover.
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我們得到 ILC 多佛公司 所製的一套驚人服裝。
03:58
ILC Dover was the company that made all of the Apollo suits
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ILC 多佛公司製作了 所有阿波羅計畫的太空裝,
04:02
and all of the extravehicular activity suits.
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所有太空行動的服裝 都由他們出產。
04:04
They had never sold a suit commercially,
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他們從來沒有在商場上販賣,
04:08
only to the government,
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只賣給政府,
04:09
but they sold one to me, which I am very grateful for.
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但是他們賣一套給我, 讓我萬分感激。
04:13
Up here we have a parachute. This was all about safety.
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我們在上面裝降落傘, 安全是唯一考量。
04:17
Everyone on the team knew
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每個團隊成員都知道
04:22
that I have a wife and two small children --
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我有老婆和兩個小孩,
04:24
10 and 15 --
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一個 10 歲,一個 15 歲,
04:27
and I wanted to come back safely.
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我希望平安歸來。
04:29
So there's a main parachute and a reserve parachute,
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因此有一個主要降落傘 和一個備用降落傘,
04:31
and if I do nothing,
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如果我什麼都沒做的話,
04:33
the reserve parachute is going to open because of an automatic opening device.
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備用降落傘的自動啟用裝置 就會開傘。
04:38
The suit itself can protect me from the cold.
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這套服裝本身可以為我防寒。
04:40
This area in the front here has thermal protection.
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前面這一區有熱防護裝置,
04:43
It will actually heat water that will wrap around my body.
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水經加熱後會環繞我全身。
04:46
It has two redundant oxygen tanks.
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還有兩罐多備的氧氣瓶。
04:48
Even if I was to get a quarter-inch hole in this suit,
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即使我的服裝上有半公分的洞,
04:52
which is extremely unlikely,
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那幾乎不可能發生,
04:54
this system would still protect me from the low pressure of space.
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這套裝置還是會保護我 不受到太空低壓傷害。
04:59
The main advantage of this system is weight and complexity.
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這套裝置的最大優點 在於重量和複雜度。
05:03
So the system weighs about 500 pounds,
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裝置重約 227 公斤,
05:06
and if you compare it to the other attempt recently to go up in the stratosphere,
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如果你拿它和最近 飛進平流層的裝置相比,
05:09
they used a capsule.
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他們用的是太空艙。
05:11
And to do a capsule, there's an amazing amount of complexity that goes into it,
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太空艙裡面複雜得驚人,
05:15
and it weighed about 3,000 pounds,
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總重約 1360 公斤,
05:17
and to raise 3,000 pounds to an altitude of 135,000 feet,
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要升起 1360 公斤的東西 到 42 公里高,
05:21
which was my target altitude,
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也就是我的目標高度,
05:23
it would have taken a balloon that was 45 to 50 million cubic feet.
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需要 127 萬到 142 萬 立方公尺的大氣球。
05:30
Because I only weighed 500 pounds in this system,
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因為我穿這套裝置後 只有 227 公斤,
05:34
we could do it with a balloon that was five times smaller than that,
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我們只要五分之一大小的 氣球就夠了,
05:37
and that allowed us to use a launch system that was dramatically simpler
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而且讓我們需要的發射系統 變得簡易許多,
05:41
than what needs to be done for a much larger balloon.
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和發射大氣球相較九牛一毛。
05:45
So with that, I want to take you to Roswell, New Mexico, on October 24.
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有了設備,我想帶大家回到 10 月 24 日 新墨西哥州的羅斯威爾。
05:50
We had an amazing team that got up in the middle of the night.
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我們這支驚人團隊在半夜起床。
05:53
And here's the suit.
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這是那套服裝。
05:56
Again, this is using the front loader that you'll see in a second,
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同樣我們會用到裝載車, 馬上你就會看到,
05:59
and I want to play you a video of the actual launch.
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我想播放一段實際發射的影片。
06:02
Roswell's a great place to launch balloons,
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羅斯威爾是發射氣球的絕佳地點,
06:04
but it's a fantastic place to land under a parachute,
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更是降落傘登陸的完美地點,
06:08
especially when you're going to land 70 miles away from the place you started.
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尤其是你要在距離起點 110 公里外的地方降落。
06:13
That's a helium truck in the background.
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後面那台是氦氣卡車。
06:16
It's darkness.
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一片漆黑。
06:17
I've already spent about an hour and a half pre-breathing.
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我已經花一個半小時 做預先呼吸純氧了。
06:20
And then here you see the suit going on.
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現在大家看到服裝上場。
06:24
It takes about an hour to get the suit on.
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大概要花半小時穿上這套服裝。
06:29
Astronauts get this really nice air-conditioned van
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太空人會有高級空調箱型車載他們
06:33
to go to the launch pad, but I got a front loader.
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進入發射台,而我有的是裝載車。
06:35
(Laughter)
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(笑聲)
06:38
You can see the top. You can see the balloon up there.
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看上面,氣球就在上面。
06:40
That's where the helium is.
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氦氣就在裡面。
06:44
This is Dave clearing the airspace with the FAA for 15 miles.
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這是戴夫和聯邦航空總署 正在清空 24 公里的飛行空間。
06:52
And there we go.
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要登場了。
06:56
(Laughter)
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(笑聲)
06:58
That's me waving with my left hand.
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那是我在揮左手。
06:59
The reason I'm waving with my left hand
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我揮左手
07:02
is because on the right hand is the emergency cutaway.
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是因為右手負責逃生脫離裝置。
07:04
(Laughter)
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(笑聲)
07:06
My team forbade me from using my right hand.
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我的團隊禁止我用右手。
07:11
So the trip up is beautiful. It's kind of like Google Earth in reverse.
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往上的旅程很美, 有點像是反向的 Google 地球。
07:14
(Laughter)
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(笑聲)
07:17
It took two hours and seven minutes to go up,
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向上花了兩小時又七分鐘,
07:19
and it was the most peaceful two hours and seven minutes.
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是最平和的兩小時又七分鐘。
07:22
I was mostly trying to relax.
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我一直在試著放鬆。
07:25
My heart rate was very low
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我的心跳很慢,
07:27
and I was trying not to use very much oxygen.
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試著不要用太多氧氣。
07:31
You can see how the fields in the background
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你可以看到背後的田野
07:34
are relatively big at this point,
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這時候看起來還蠻大的,
07:36
and you can see me going up and up.
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可以看得出來我一路向上。
07:38
It's interesting here, because if you look,
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這裡很有趣,因為你會看到
07:40
I'm right over the airport, and I'm probably at 50,000 feet,
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我就在機場上方,大概 15 公里高,
07:43
but immediately I'm about to go into a stratospheric wind
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但是馬上我就要進入平流層風了,
07:46
of over 120 miles an hour.
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時速大約 193 公里。
07:51
This is my flight director telling me that I had just gone higher
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這是我的飛航指引儀, 顯示我剛超越
07:55
than anybody else had ever gone in a balloon,
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無人曾用氣球抵達的高度,
07:57
and I was about 4,000 feet from release.
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大概再 1.22 公里我就要釋放了,
08:01
This is what it looks like.
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看起來就像那樣。
08:06
You can see the darkness of space, the curvature of the Earth,
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你可以看到太空的漆黑, 地球的曲線,
08:10
the fragile planet below.
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下方脆弱的星球。
08:20
I'm practicing my emergency procedures mentally right now.
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我當時正在心裡默練逃生程序,
08:24
If anything goes wrong, I want to be ready.
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如果有什麼意外的話,我想做好準備。
08:26
And the main thing that I want to do here
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這裡我主要想做的事情
08:28
is to have a release and fall and stay completely stable.
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就是釋放、墜落,完全保持穩定。
08:35
(Video) Ground control. Everyone ready?
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(影片)地面控制。全員預備。
08:43
Five. Four. Three. Two. One.
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五、四、三、二、一。
08:59
Alan Eustace: There's the balloon going by, fully inflated at this point.
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尤斯塔斯:氣球從旁邊飛走, 當時已經完全沒有氣了。
09:04
And there you can see a drogue parachute, which I'll demonstrate in just a second,
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那裡有個阻力傘, 我馬上會示範操作,
09:08
because that's really important.
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因為那真的很重要。
09:10
There's the balloon going by a second time.
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氣球第二次飄過去了。
09:21
Right now, I'm about at the speed of sound.
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現在我的速度和音速相當。
09:24
There's nothing for me to tell it's the speed of sound,
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我無從判斷那是音速,
09:27
and very soon I will actually be as fast as I ever get,
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就快到我最高速的時刻了,
09:31
822 miles an hour.
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大約時速 1322 公里。
09:49
(Video) Ground control: We lost the data.
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(影片)地面控制:我們看不見數據了。
09:54
AE: So now I'm down low right now
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尤:現在我向下降,
09:56
and you can basically see the parachute come out right there.
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基本上你們可以看到 降落傘從那邊打開。
10:01
At this point, I'm very happy that there's a parachute out.
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這個時候,我很高興 有個降落傘打開了。
10:05
I thought I was the only one happy,
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我以為我是唯一高興的人,
10:07
but it turns out mission control was really happy as well.
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但任務管制小組都很開心。
10:10
The really nice thing about this is the moment I opened --
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這一刻最棒的是我打開…
10:13
I had a close of friend of mine, Blikkies, my parachute guy.
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我有個好友李奇斯, 和我一起玩降落傘的夥伴。
10:17
He flew in another airplane, and he actually jumped out
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他從另一台飛機上跳下來,
10:20
and landed right next to me.
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就降落在我旁邊。
10:22
He was my wingman on the descent.
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他是我降落時的得力助手。
10:25
This is my landing, but it's probably more properly called a crash.
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這是我著陸的樣子, 但稱墜地可能比較恰當。
10:30
(Laughter)
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(笑聲)
10:35
I hate to admit it, but this wasn't even close to my worst landing.
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我很不想承認,但那可以說是 我著陸最差的一次。
10:38
(Laughter)
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(笑聲)
10:41
(Applause)
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(掌聲)
11:00
(Video) Man: How are you doing?
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(影片)男:還好吧?
11:01
AE: Hi there!
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尤:嗨!
11:07
Yay.
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好耶!
11:08
(Laughter)
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(笑聲)
11:10
So I want to tell you one thing
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我想告訴各位一件事情,
11:12
that you might not have seen in that video,
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你們之前可能沒在影片上看到,
11:14
but one of the most critical parts of the entire thing was the release
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但整件事最關鍵的部分 就是那個釋放,
11:18
and what happens right after you release.
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還有釋放之後馬上發生的事。
11:21
And what we tried to do was use something called a drogue parachute,
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我們嘗試要用的東西稱為阻力傘,
11:25
and a drogue parachute was there to stabilize me.
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阻力傘的功能是讓我保持穩定。
11:28
And I'll show you one of those right now.
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我現在示範給大家看。
11:30
If any of you have ever gone tandem skydiving,
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如果你們有人試過高空跳傘,
11:34
you probably used one of these.
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大概就會用這個。
11:38
But the problem with one of these things
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但帶一個這種傘的問題是
11:40
is right when you release, you're in zero gravity.
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你釋放時的重力是零。
11:43
So it's very easy for this to just turn right around you.
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因此這東西很容易就會繞著你轉,
11:46
And before you know it, you can be tangled up or spinning,
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在你發現之前, 可能就已經被纏住或在旋轉了,
11:51
or you can release this drogue late,
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也有可能你太慢釋放這個阻力傘,
11:54
in which case what happens is you're going down at 800 miles an hour,
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無論哪種情況你都會 以近 1,300 公里的時速下降,
11:58
and this thing is going to destroy itself
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這東西就會自行毀壞,
12:00
and not be very useful.
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變得沒有多大用處。
12:03
But the guys at United Parachute Technologies came up with this idea,
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但是聯合降落傘技術公司 想出一個辦法,
12:07
and it was a roll that looks like that,
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就是用像那樣的滾輪,
12:09
but watch what happens when I pull it out.
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注意看我拉出來之後的樣子。
12:13
It's forming a pipe.
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它會形成一條管子,
12:16
This pipe is so solid
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這條管子很硬,
12:20
that you can take this drogue parachute and wrap it around,
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硬到你可以抓住阻力傘, 然後繞著它轉,
12:24
and there's no way it will ever tangle with you.
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而且它也不可能會纏住你,
12:27
And that prevented a very serious potential problem.
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這可以避免非常嚴重的問題發生。
12:31
So nothing is possible without an amazing team of people.
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沒有絕佳團隊就什麼事也辦不成。
12:34
The core of this was about 20 people
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這件事的核心人物大約有 20 位,
12:37
that worked on this for the three years,
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一起合作這個計畫三年,
12:39
and they were incredible.
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他們都非常傑出。
12:40
People asked me what the best part of this whole thing was,
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大家問我這整件事 最棒的部分是什麼,
12:43
and it was a chance to work with the best experts
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就是有機會和最卓越的專家合作,
12:46
in meteorology and ballooning and parachute technology
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無論是在氣象學、 乘氣球飛行和降落傘技術、
12:50
and environmental systems and high altitude medicine.
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環境系統,還是高海拔醫學的專家。
12:55
It was fantastic. It's an engineer's dream to work with that group of people.
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真的很不可思議, 和那群人合作是工程師的夢想。
12:59
And I also at the same time wanted to thank my friends at Google,
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同時我也想要感謝在 Google 的朋友,
13:02
both for supporting me during this effort
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他們在我努力期間支持我、
13:05
and also covering for me in the times that I was away.
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在我離開的時候代理我的工作。
13:08
But there's one other group I wanted to thank, and that's my family.
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我還想感謝另一組團隊, 就是我的家人。
13:12
Yay.
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耶!
13:13
(Applause)
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(掌聲)
13:19
I would constantly give them speeches about the safety of technology,
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我之前一直滔滔不絕 跟他們說技術安全的事,
13:23
and they weren't hearing any of it.
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他們根本不聽。
13:27
It was super hard on them,
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這對他們超難的,
13:28
and the only reason that my wife put up with it
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我太太能忍受的唯一原因
13:31
was because I came back incredibly happy after each of the 250 tests,
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是因為歷經 250 次測試, 我每次回來心情都非常好,
13:36
and she didn't want to take that away from me.
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她不想壞了我的好心情。
13:38
So I want to close with a story.
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在結束前我想分享一個故事。
13:40
My daughter Katelyn, my 15-year-old, she and I were in the car,
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我的女兒凱特琳,15 歲, 她和我在車上,
13:45
and we were driving down the road, and she was sitting there,
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我們在路上開車,她坐在我旁邊,
13:48
and she had this idea, and she goes, "Dad, I've got this idea."
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她有個想法就跟我說: 「爸,我有個想法。」
13:52
And so I listened to her idea and I said, "Katelyn, that's impossible."
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我聽完之後就說: 「凱特琳,這件事不可能。」
13:57
And she looks at me
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她看著我
13:58
and she goes, "Dad, after what you just did,
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說:「爸,在你做了那件事之後,
14:02
how can you call anything impossible?"
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怎麼還會說有什麼事是不可能的?」
14:05
And I laughed, and I said, "OK, it's not impossible,
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我笑著說:「好啦,不是不可能,
14:09
it's just very, very hard."
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只是非常、非常難。」
14:12
And then I paused for a second, and I said, "Katelyn,
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我停了一秒之後說:「凱特琳,
14:15
it may not be impossible, it may not even be very, very hard,
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也許不是不可能, 也許不是非常、非常難,
14:19
it's just that I don't know how to do it."
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只是我不知道要怎麼做而已。」
14:22
Thank you.
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謝謝。
14:23
(Applause)
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(掌聲)
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