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Helium

嘿同志们!猜猜我们今天要聊的家伙是什么!
Hey guys !Guess what guys we’re talkingabout today !……And the news
这是个可怕的东西,是为[?]人们所憎恶的……
is dire this is serious stuff peopledespite
它就是氦,宇宙中被我们消耗的第二多的元素。
the fact that helium is the second mostabundant element in the universe we’re running out.
氦对我们非常有用,因为它真的[?]
[Physically?] helium was veryuseful for us because it was really do
[?]不像氢气一样易爆
anything star Leonardo doesn’t explodelike hydrogen
也不像氧一样具氧化性,这使得氦有一些安全
doesn’t corrode like oxygen that makesperfect am perfectly safe for all kinds
而又酷炫的应用,比如
of crazy uses like
制造电视的液晶显示屏,以及增压推动NASA
making liquid crystal televisiondisplays and pressure rising nasa’s
的火箭
rockets
(液氦)也有一个很好的用途,即[?]制冷达到可怕的低温以使
Helium also really good at makingstuff but friggin cold it’s used in the
磁冷却(绝热去磁)
magnets
在大型强子对撞机中
at the Large Hadron Collider which wetalked about in a previous episode
(往期节目有过探讨)
Sci-show
对于医生用来扫描我们身体、检查疾病的核磁共振成像仪(MRI),
an MRI machines the doctors used to scanour bodies to figure out what diseases
25%氦用于MRI中
that we have . 25 percent the helium thatwe use [the United States?]is used
另外,你会问,我们怎样能得到更多的氦
in MRI machines. And how, you will ask, can we get more helium
在我们用完它们之前?答案是……能!
before we run out ? Well, the answer is you can! Really
我们很幸运……氦,宇宙中第二多的元素,
fortunately. So , helium , second mostabundant element in the universe scared
恐怕会在我们的大气层中降低到一个很低的比例
to get to the percentage
你头脑中浮现出了一个怎样的数?
a bit in our atmosphere. How that numberin your head ?
是0.00053%吗?
Was it 0.00053 percent?
是0.00053%吗?
Was it 0.00053 percent?
那代表大气中每百万个原子中只有五个是氦原子
that’s five atoms of helium for everymillion
氦由低速率放射性物质产生
atoms of atmosphere. Helium isproduced by the slow decay of
(地壳内部的放射性物质)
radioactive materials in the earth’scrust
当氦抵达地表时,因为它比空气轻,所以上升
and when it reaches the surface becauseit’s lighter than air it just float
到我们的大气层中。但一些氦被困在地下
up right our atmosphere. But someof it gets trapped underground
并被捕获成为天然气的一部分。这种能让你愉快地给气球充气的物质,
and is captured along with natural gasthe stuff that inflates you’re my life
是从气体沉积中提炼出来的。
[?] complete on your balloon orwhatever is extracted from those gas
然而并没有多少沉积物含有足够的氦可以提炼
deposits . But not a lot of deposit haveenough helium to make it was
美国政府战略储存氦[的原因很可能是?]……
extracting . [And?] probably why the UnitedStates government has
(第一次听说时我不信,
strategic helium reserve which I don’tbelieve either when I first heard it
但事实如此)
but we do.
一百六十亿立方英尺的物质[氦?]储存在德克萨斯州白云石沉积物中
Sixteen billion cubic feet of the stufftrapped in dolomite deposits in Texas
有理由这样做[?]。因为北美生产全世界50%的氦[?对此方面不了解,求教懂核物理或能源的同志]
and [?] we had it because theUnited States America it up about half
实际上政府[?]
of the world’s supply of heliumgovernment has actually been sign of our
第二产业每年消耗21亿立方英尺的氦
staff about 2.1 billion cubic feet peryear to private industry
按这种速率下去,我们会在2020年耗尽氦。[重要的是?]
at that rate we will run out by 2020status regulation time is running out
我们也会耗尽氦-3
we’re also running out and I said tocall helium-3
氦-3只在氚[?]衰变时产生
Helium-three is only produced when thetritium in a nuclear bomb decays
因为我们越来越多地让耗费氦-3的原子弹退役
and since we’re decommissioning more andmore nuclear bombs were
情况有所改善[?]。氦-3对于
running out of helium-3 how it turns outthat helium 3 is really good at
检测辐射有非常好的应用
detecting radiation coming off
(检测那些潜在的、危险的核放射)
of potentially dangerous nuclearmaterials
所以我们基本上占用所有存在的氦-3
and so we basically bought the whole barlike we have all the helium 3
用来在港口机场
that exists and we’re using it to detect
探测核武。
for nuclear weapons coming in at portsand airports and stuff but since we are
尽管我们不再制造原子弹(我双手赞成),但我们仍走在耗尽
making nuclear bombs anymore which I’mtotally in favor of we’re running out of
氦-3的路上
helium-3
那我们怎么办呢? Well,有件好事,17岁的Taylor Wilson,
so what are we gonna do? Well, it’s a goodthing that 17-year-old Taylor Wilson
刚刚发明了一个[原子弹?]探测器,这个探测器不需要氦-3,
just invented a bomb detector thatdoesn’t use helium 3 and actually costs
而且花费比
like
氦-3探测器少5000倍!
five thousand times less money thanhelium 3 detector
结局是Taylor赢得了50000美元彰显其佳绩,
this resulted in Taylor winning a fiftythousand dollar signs their prize and
并获得了专利(这个的意义可能更重大)
getting a patent that’s probably worthsignificantly more than that
说到这儿,我们应该把整个事件拍成电影
speaking at that we should probablyactually just film whole episode on that
这哥们真帅
guy he’s pretty cool
因此,我们的氦短缺问题可能有解了。
so maybe there are some solutions forour helium related problems but
但一些应用还需求比空气更轻的惰性气体
some applications are just going torequire a noble gas that’s lighter than
(这样的惰性气体只有一种)
air and there’s only one of those
一个[?]公司,将要让
why the gas companies I gonna have to dosmall [?] are gonna have to
Lando Calrissian 在木星上建造一个云上城市,
get Lando Calrissian to build us a cloudcity on jupiter is something and suck up
并(让城市)吸收所有氦
all the helium
建在木星上的原因是[?],但你要知道,Lando他可能只是
jupiter’s got cuz it’s not using it butknowing landow he probably just leave
把整个事情看作游戏而已
the whole thing a card game anyway
所以这有什么用?-_-我不该赶时间,不过……
so what’s the use? So, I shouldn’t be racing this but … until next time you can follow us on
直到下次节目前你可以在我们的推特和脸书上留言
Twitter and on Facebook
我们会始终关注评论,回复问题,
and we’re always down the commentsection below the at any questions or
以及观众朋友们对下次节目内容的建议 :P 再见
suggestions for stuff we should becovering on the next episode a sideshow

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视频来源

https://www.youtube.com/watch?v=tzecE6XDFgg

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