ADM-201 dump PMP dumps pdf SSCP exam materials CBAP exam sample questions

十件关于黑洞的不可思议的事 – 译学馆
未登录,请登录后再发表信息
最新评论 (0)
播放视频

十件关于黑洞的不可思议的事

10 Surprising Things That Exist Inside Black Holes

嘿 想了解点疯狂的东西吗
– Hey, wanna learn about spacey things?
好吧
Okay.
知道吗 直到最近科学才发现
You know up until recently,science had no idea
黑洞里面到底有什么
exactly what existed within a black hole or,
说到这点 黑洞到底是什么
for that matter, what they even were.
我没玩文字游戏
No pun intended.
如今 我们知道的比以往更多
But today, we know more than ever,
不仅仅关于太空 还有黑洞
not just about space, but about black holes specifically
以及黑洞内部
and what exists within them.
如果你觉得黑洞只是个充满
And if you thought that it was just an empty void full
可怕虚无的空间 你会大吃一惊的
of scary nothingness, you’re about to be surprised.
[音乐播放中]
(playful music)
这儿有十件关于黑洞的
Here are ten surprising things
不可思议的事
that exist inside black holes.
第十件是视界
Number ten is an event horizon.
黑洞通常被误认为
It’s a common misconceptionthat black holes
“吞噬”物体 就像
vacuum up material, kind of like me
我们能在空中吃自助餐
and all you can eat buffet, up top.
但事实上 它像宇宙中的其他
But the truth is, theyact like any other body
任何质量天体 只吸引
of mass in the universeonly attracting objects
周边受其引力影响的物体
towards them that fall withintheir gravitational influence.
一旦物体被黑洞吸入
But once that gravity pulls an object into the black hole,
它就进入了
it comes into contact
叫做事件视界的地方
with something called an event horizon.
在物理学中 事件视界指黑洞的边界
In physics, an event horizon is a boundary
由此处 事件无法影响外界的观察者
from which events cannotaffect outside observers.
比如 假设你掉进了一个黑洞
For example, let’s say youfell into a black hole.
啊!
Ahhh!
掉进去的就是你 开玩笑啦
That would be you. No,
言归正传
but really,
假如我们眼睁睁的
let’s say that you fell into a black hole
看你掉入一个黑洞 首先
while the rest of us were watching. First,
你可真倒霉 其次
yes, that would suck to be you. Second,
当你穿过事件视界
while you would comeacross the event horizon,
以我们的视角看 你就像被时间定格了
to us, you would appear as though you were just frozen in time.
我们永远无法看你穿过事件视界
We would never actually seeyou cross that event horizon. Oh,
还有 如果你穿过了视界
and one more thing, if you did cross the event horizon,
就再也回不来了
there’s no coming back.
记得打包午饭 别饿着
Better pack a lunch.
第九件是拉面化
Number nine is spaghettification.
这听起来像我Nona家的晚餐耶
Spaghettification sounds likedinner at me Nona’s house, eh.
物理学家用这个奇怪的词
Spaghettification is theweird term used by physicists
来解释物体进入黑洞后
to explain what happens to an object
将会经历的过程
once it enters a black hole.
你穿过了黑洞的
If you passed across the event horizon
事件视界后
of one of these black holes,
将经历像拉面一样被拉伸的过程
you would go through something called the spaghettification process.
这就是著名的面条效应
This is also known as the noodle effect,
这名字听起来够美味吧
in case you wanted a tastier name for it.
即你的身体从头到脚将被直直的拉伸
Your body would be stretchedvertically from head to toe
成为面条状的一粒原子
into a spaghetti-like formation of atoms.
发生这种变化的原因是
This happens becausethe gravitational pull
脚受到的引力比头
of the black hole would be much stronger
要强的多
at your feet than at your head.
同时 你身体的右边
At the same time, your rightside would be compressed
向左边挤压
towards the left and your left side
左边又向右边挤压
would be compressed towards your right.
就像挤牙膏
Think of it kind of likesqueezing a tube of toothpaste.
最终 你像一根面条一样
In the end, you’d just bea stream of noodle matter
朝着黑洞的中心前进
heading towards thecenter of the black hole.
这可是最糟的一次旅行啦
Worst vacation spot ever.
第八件是引力奇点
Number eight is thegravitational singularity.
也就是我们说的时空奇点
Also known as a space time singularity,
许多物理学家都认为
a gravitational singularityis what many physicists
引力奇点位于黑洞的中心
believe lies at thecenter of a black hole.
这里的物质密度极高
It’s a point where matterhas become so condensed
形成了极其强大的引力场
that the gravitational fieldbecomes almost infinite.
此时就发生我们所说的时空瓦解
When this occurs, space and time as we know it breaks down.
不旋转的黑洞的奇点
In non-rotating blackholes, the singularity
仅仅被视为一个简单的点
is depicted as a single point whereas
而旋转黑洞的奇点被物理学家
in rotating black holes,physicists believe
比喻为一个环 但是因为时空瓦解
that it resembles a ringbut, because space and time
使得奇点产生了奇异的物质
have broken down, singularitiespossess bizarre properties
导致了令人费解的某个悖论
which lead to strange paradoxes,
我们待会会说到
which we’ll get to in a moment.
近来 奇点和黑洞被认为
Until fairly recently, it wasbelieved that singularities,
是永恒的
and therefore black holes,last forever, ever, ever.
但天才史蒂芬•霍金 愿您安息
But the brilliant StephenHawking, rest yo soul,
认为黑洞会逐渐蒸发
has shown that they evaporate over time
即使这会花上数万亿年
and though it may take trillions of years,
黑洞最终还是会消失
they will eventually fade away.
第七件是一无所有
Number seven is nothing.
其实黑洞中心
It is in fact possiblethat there’s nothing
可能一片虚无 因为里面就是一无所有
at the center of a black hole because they simply do not exist.
至少不像我们想的那样
At least not the way we normally think.
虽然物理学界猜想黑洞中心有奇点
While they are predicted inphysics and should be out there,
一些物理学家仍然表示怀疑
some physicists are still skeptical.
在数学界 理论中若出现
A singularity, or point of infinity,
奇点或无限大的数 通常会被认为
is often seen by mathematicians as a sign
是理论出错了
that something is wrong with a theory,
因为自然界中
the argument being thatinfinity isn’t something
没有什么是无限大的
that can actually occur in nature.
当理论中的数学运算无法进行下去时
It’s simply a conceptmathematicians and scientists use
数学家和物理学家就会使用
when a theory reaches a point where
奇点这个概念
the mathematics break down.
在黑洞的中心
At the core of the black hole,
可能真的没有奇点 综上
it may be that there is no true singularity. So,
也就是说 世上最聪明的人
in other words, the most brilliant minds
认为黑洞中心可能有东西
in the world have come up with that it could
也有可能一无所有
be something or it could be nothing.
我们只知道这么多了
We’re gettin’ there.
第六件是防火墙
Number six is the firewall.
这就刺激了 计算机的防火墙?
Yo man, I just got excited,you mean like a computer?
大概吧 听我说完先 最新的理论认为
Maybe, just keep listening. A recent theory suggests
在黑洞内部
that inside a black hole,
有一种叫做防火墙的东西
there’s something called a firewall.
在这个概念被提出来以前
Until firewalls weresuggested, most physicists
大多数物理学家都认为黑洞遵循
believed that black holes did not violate
量子力学定律
a law in quantum mechanics, which states
即信息不会被完全破坏
that information cannever be truly destroyed.
所以即使信息逃不出黑洞
So even if information can’t escape a black hole,
也会留在里面
it still exists inside of it.
只是与外界失联 然而
It just can’t be communicatedto the outside world. However,
一些人认为当黑洞逐渐蒸发
some suggest thatas a black hole evaporates,
信息会泄露出来
information does seep out which causes
这就给理论物理学家出难题了
all sorts of problems fortheoretical physicists.
问题的答案就是防火墙
The solution is a firewall.
物体穿过事件视界后
As an event crosses the event horizon,
遇到高密度的能量场
it meets this intense wall of energy,
受到严重的破坏
which essentially destroysit to such a degree
物体的信息已无法复原
that information cannotbe later retrieved.
直接把物理结构给毁了
This literally breaks physics.
啊……
Ahhh.
啊 够了
Ahhh. Okay,
来 我们继续
I’m okay, let’s move on.
第五件是引力之源
Number five is the origin of gravity.
黑洞可能藏着引力的秘密
Black holes may actuallycontain the secret to gravity.
宇宙离不开引力 如果没有
Gravity is an integralpart of the universe. Stars,
这神秘的引力将万物聚集到一起
planets, life, noneof this would be possible
星辰 行星和生命
without this mysterious attractive force
都不复存在 但引力
pulling matter together but gravity
又异常的微弱 没人知道其中的缘由
is also strangely weakand no one is certain why.
答案可能就在黑洞里
The answer may be within black holes.
有人猜测引力微弱的原因是
Someone speculated that the reason gravity
它并非源于
is so weak is that it doesn’t originate
我们生存的三维空间
in the three spacialdimensions that we live in.
而是可能来自另一维度
It’s possible that gravitycomes from another dimension.
以微弱的形式渗入我们的宇宙
Then this force seeps into ouruniverse in a diluted form,
这就能解释为什么它那么微弱
explaining why it’s so weakbut inside a black hole,
在黑洞的时空扭曲处
where space time is so contorted,
你可能得以一窥另一维度
you might encounter glimpsesinto another dimension. Hey,
喂 这里发生了啥?噢
what else is goin’ on in here? Oh,
你看到了一个三面女人 好吧
you got three-faced women, okay.
史蒂芬•霍金觉得我们可以建一个小黑洞
Stephen Hawking has suggested that we might create miniature black holes
探究里面是否存在
just to see if they do contain evidence
引力之源的证据
for the origin of gravity itself.
我知道这怎么做
Oh yeah, I know how this goes.
先建立一个小黑洞
It starts as a little baby black hole but
然后培养它慢慢变大
then you feed it and it gets bigger and
变大 最后吃掉所有人
bigger and bigger, it just eats everybody.
天呐 快跑
Oh god, run.
第四件是重力真空星
Number four is a gravastar.
一说到黑洞我们就想到
The term black hole conjures up images of, well,
在太空中有个黑色的洞
a black hole in space.
大多数理论都认为黑洞的中心
Most theories suggest thatat the center of a black hole
是某种奇点 甚至是时空的裂口
is some sort of singularity or even a tear in space time. But,
但如果它根本不是一个洞呢?
what if it wasn’t a hole at all?
物理学中有另一种理论
An alternative theory in physics suggests
认为黑洞其实是重力真空星
that black holes are actually gravastars.
重力真空星是恒星内爆后
A gravastar is a hypothesizedstructure left behind
可能残留的结构体 它没有变成
by an imploding star butinstead of being a hole
时空里的黑洞 而是形成了有表面的
in space time, it’sactually a bubble structure
圆形结构
with a surface.
物理学家艾缪和帕威认为
Physicists Emil Mottolaand Pawel O. Mazur argue
我们所谓的黑洞
that what we think of as black holes
就是这些奇怪的圆形结构
are these strange bubbles.
这个理论的诱人之处在于
What’s enticing about this theory is
不需要奇怪的解释来证明
that these bubbles wouldn’t require bizarre explanations,
奇点的存在
such as a singularity to exist. So,
当我们进入黑洞时
in other words,perhaps we’d run into one
可能会碰上重力真空星
of these gravastars if we ever tried to enter a black hole. Although,
即便你必死无疑
you would most certainly die but
但你起码知道了真相
you’d know the truth right before the end.
第三件是封闭的时间曲线
Number three is closed time-like curves.
一些科学家猜测封闭的时间曲线
Some scientists speculatethat closed time-like curves
存在于黑洞内部
exist inside some black holes.
时空中的一切物体都有所谓的世界线
Every object in space and time has what’s known as a world line.
可以把它看成时间的轨迹
It can be thought of asa trajectory through time
承载着我们的过去 现在和未来
taking us from our past throughthe present to the future.
通常 我们只处于一个世界线
Now usually, we’re rigidlystuck in our world line
并且会从头到尾的通过它
and have to pass throughit from point A to Zedd but,
但是在黑洞内部的引力场
inside a black hole,the graviational field
能够扭曲这条线
could actually bend this line so that
所以人的世界线会自我回环
a person’s world linewould loop back on itself.
所以人的世界线会自我回环
So that a person’s world linewould loop back on itself.
所以人的世界线会自我回环
So that a person’s worldline would loop back,
等一下
wait a minute.
也就是说 在黑洞内部
In other words, from inside a black hole,
一个物体 包括人和太空船
an object, including aperson or space craft,
将沿着一种特定的轨迹运动
would move in a specific trajectory
这个运动能带你回到过去
which would take it into its own past.
怕你还不懂
In case you didn’t figure it out,
我们在说时间旅行呢 大家
we’re talkin’ time travel, people.
现在这个说法受到争议 无人确定物体
Now this is debated andno one knows if an object
能否在黑洞内活着体验时间旅行
could survive inside a blackhole to even attempt it.
这个就像德洛雷安时光机
Basically what I’m saying is a DeLorean
布朗博士也无法阻止
and Doc Brown is not gon na cut it.
第二件是虫洞
Number two are wormholes.
可能在某些黑洞的中心
It’s possible that at thecenter of some black holes,
存在通往我们宇宙另一边的入口
there exist portals to anotherregion of our universe.
这个入口叫做虫洞
This portal is called a wormhole
是1916年由奥地利物理学家
and it was first theorized in 1916
路德维希•费拉姆首次提出的概念
by Austrian physicist, Ludwig Flamm.
他由爱因斯坦相对论
He speculated that asolution to the equations
的方程式的推论推测
of Einstein’s Theoryof Relativity suggested
黑洞内可能存在着虫洞
that something called a white hole might exist inside a black hole.
爱因斯坦和内森•罗森
Einstein himself, along with Nathan Rosen,
进一步发展这个理论
then expanded on this to suggest
认为虫洞可能是
that this white hole might actually
连接不同时空的桥梁
be part of a bridge toanother part of the universe.
虫洞又被称作“爱因斯坦-罗森桥”
Known as the Einstein-Rosenbridge, this hole would make
它能做瞬时的长距离转移
it possible to travel vast distances in the blink of an eye.
你可能听说过 因为已经有
You might’ve heard of thisbefore because science fiction
相关的科幻小说和电影
writers and filmmakershave been showing this
讨论过穿过一个虫洞后
in movies and talking aboutwhat it would look like
是什么样子
to actually pass througha wormhole forever.
虽然根据爱因斯坦的方程式
But while Einstein’s equationspredicted they exist,
能推测它的存在 但目前还没切实的证据
no one has found evidence of one yet.
最后一件是多元宇宙
And number one are other universes.
最后一个了 认真听哦
Oh yeah, buckle in for this one.
物理学家们猜测
Those singularities that are said to exist
这些所谓的黑洞内部的奇点
inside black holes,physicists also speculate
导致了大爆炸
that it was a singularitythat became the big bang.
如果我们的宇宙是从这样一个
If this single point ofnearly infinite energy
能量和质量极大的点中诞生
and mass was what started our universe
而该点又是在黑洞内部
and such a thing existsinside a black hole,
那可以说是黑洞创造了宇宙吗?
then does that mean blackholes create universes?
听起来不可思议 但物理学家比如尼克丹姆•鲍勃拉姆斯基
Well it sounds wild but physicists, such as Nikodem Poplawski,
相信黑洞
believe that black holes
创造了宇宙 再被宇宙重塑
create new universes whichare then birthed from our own.
她表明一些黑洞以
She argues that someblack holes spin at nearly
光速在运动 导致奇点内部产生了
the speed of light andthis creates huge amounts
巨大的扭曲 最终
of torsion inside the singularity. Eventually,
形成大爆炸
this coiled up energy needs
时所释放的能量
to release in a big bang.
但因为黑洞有事件视界
But because of the eventhorizon of a black hole,
我们永远也看不到大爆炸
we never see the explosion.
我们的宇宙可能就在
That means that our universemight actually be inside
黑洞里面 就是现在
of a black hole, like, right now. Oh,
哦 可怕!
oh mama!
今天就到这里
And that’s it.
如果你喜欢这个视频
If you enjoyed this video and you wan na see
并想收看更多类似的内容
more like it in the future, subscribe to my
订阅我们的频道 开启最新消息通知
channel and turn on notifications for my new uploads.
感谢收看 我们下期再会
Thanks for watching and I’llsee you in the next one.

发表评论

译制信息
视频概述

科普黑洞知识啦

听录译者

收集自网络

翻译译者

Seline

审核员

审核员 V

视频来源

https://www.youtube.com/watch?v=Hh-YcWJTt7Y

相关推荐