I am going to scream as loud as I can
and I am going to keep screaming as loud as I can while I spin around.
I will keep going until my breath runs out.
>> You ready? >> Yeah. thanks
>> That was outstanding. Thank you.
>> Thank you.
>> The quietest place on earth is apparently an anechoic chamber in Minneapolis.
am here at BYU at their anechoic chamber.
Anechoic is Latin and basically means no echo.
And the way they achieve no echo is through all of these foam wedges which are put on the wall and even the floor.
You can see that I am actually on a spring floor
and down below me there are all of these wedges.
Now you may want to use headphones while you are listening to this video,
because that is going to be quite important.
>> Low frequency sound will come in and, by the shape of it,
bounce and just keep bouncing pretty much forever until it just gets lost in the wall.
And then high frequencies are more so going to get absorbed into the foam itself.
门关上时 通过不断的鼓掌 你就可以听出这个房间如何减弱回音的
>> You can hear how the room deadens echoes by clapping constantly while closing the doors.
It totally changes the quality of the sound.
有报告说 在这样一个房间里呆很长一段时间还保持神志正常 是不可能的
>> There are reports that it is impossible to stay in one of these rooms and remain sane for a significant period of time.
The record is apparently 45 minutes.
>> I felt a little claustrophobic.
I got…it felt like there is a lot of pressure on myhead.
>> But why would that be? I mean, the air is no different in here.
>> What I figured is just because when you listen in a normal room there is a lot of reverb.
to your ear that means there is a lot of space,
but there is none of that in here, so it feels claustrophobic.
>> It feels like you are in a tiny room, like you could be in a coffin.
>>Yeah, maybe, yeah.
>> I think it is really an anxiety response.
So you are used to having these sounds around you
and then you don’t anymore and so you start to panic,
because you don’t have something you are used to,
and I think that anxiety can increase, cause some stress,
and maybe that’s why people go crazy or hallucinate with sound.
It is just because they are trying to make up for what they are used to that isn’t there.
我会提醒我带来的人：嗨 如果你感到一点头晕 请告诉我
When I bring people in I warn them: Hey,if you get a little dizzy, please let me know,
so I can get you out of the room before you make a mess in our expensive facilities.
>> First you will hear any rustle of your clothing.
So you move an inch and you will hear it.
Then you will hear any fluids that are in your mouth or your throat.
每次你的嘴一动 你就会听到这些声音 而且如果你在那里呆的时间越长
You’ll hear them all moving around every time you move your mouth. And the longer you stay there
the more you will hear. So you will start to hear the blood flow through your brain.
>> Have you heard it?
>> Yeah. It sounds kind of like a ringing or a pulsing.
>> Can you kind of make the sound for us so that we know what to listen in for?
>> Of the blood flow? >> Yeah, like…
那只是听起来像脉动 就像 shh shh shh
>> It just sounds like a pulsing, like, shh, shh, shh.
Some people say they can hear their heart beat coming from their chest as well.
>> Have you heard that?
>> A violinist placed in one of these rooms was apparently banging on the door within a matter of seconds trying to get out
Now that people say it’s impossible to stand up
因为你会变得失去方向感 眩晕 恶心 还有一些人甚至出现了幻觉
because you become so disoriented, dizzy, nauseous. And some people even hear oral hallucinations.
But to me it doesn’t sound right.
你知道的 我相信我能在这个没声音没灯的房间里坐着 想呆多久呆多久
You know, I believe that I should be able to sit in a room with no sound with the lights off for as long as I like.
And so I am going to put myself to the test by staying in this room for as long as I can.
>> Have fun in silence.
>> Thank you.
Now it is just me in the anechoic chamber. And this is probably the quietest place I
have ever been. And in a second I will tell the guys, shut the lights off.
Ok, I think…
Oh. I am ready.
灯都关上了 我要关掉摄影机 这样就没有
And the lights are off. I’m going to turn off the camera so I don’t
have this light and then there is only the audio recorder that I will keep with me.
I’m not sure how long I have been in here, but I still feel quite comfortable.
很好而且很安静 我的意思是 那是一种低调说法 但感觉很放松
It’s nice and quiet. I mean, that is an understatement. But it’s relaxing.
If I hear anything, I feel like I hear a low pitched hum.
If I have to guess as to how long I have been in here I would say about eight minutes.
我感觉我更了解我的心脏了 我能感觉到每一次跳动 而且我几乎可以感觉到血液
I feel like I am more aware of my heart. I can feel each pulse, and I can almost feel
it radiating up my chest towards my head,
like a wave.
And in my ears there’s a hiss. I think that is just…
from hearing loss.
This just reminds me of that Mission Impossible movie where Tom Cruise sneaks into that building
and he has to keep his decibel level low.
That was a burp. I don’t know if you could hear that.
I can say the really small sounds seem amplified. It is like your brain has recalibrated, so
the quiet things seem much louder.
I feel like I can feel more things like…
with every beat of my heart it feels like…
my body shakes a little bit…
like a device that has a little motor inside of it. How it gets shook around
like a thumb.
好啦 卡梅隆 在我看来时间刚好 如果它看起来和你看到的一样
Ok, Cameron, looks to me like we are good for time. If it looks the same to you like
大约46分钟以上 我很高兴出来 所以 如果你准备好了
we are around 46 minutes or over, I am happy to hop out. So, yeah, when you are ready you
could flip the lights back on if you like. Are you there?
I think I have been in here for nearly an hour according to my time checks. And I
而且我没有睡着 只是 你知道的我度过了一段不错的时间
didn’t fall asleep, I just, you know, I have had a good time. It is a nice quiet
space. I kind of feel like this would be a good material to pad your bedroom in. Not
不是个问题 无回声房间 待45分钟 一个小时 很容易 我可以在这里待五个小时
a problem. Anechoic chamber, 45 minutes, an hour. Easy. I could stay in here for five
hours. I think I could get a lot of work done in here.
所以现在我要出去了 而且我要看看没有他们帮我开灯 我能不能
So now I just have to get out. And I am going to see if I can exit this room without them
turning the lights on.
连这些门都很好很安静 好了 回到外面的世界了
Even the doors are nice and quiet. There we are. Back to the outside world.
– 嗨 你还好吗？- 还活着呢？
Hello, how are you doing? >> You alive? >> I am.
我真不明白怎么可能有人在那里会发疯 我是说 安静挺好的
I don’t really understand how anyone could go crazy in there. I mean, quiet is kind of nice. But then again
但就是有这样一些人 他们觉得所有情况都不舒服 比如在
there are people who find all sort of situations really uncomfortable like just being in pitch
black room or being in a small confined space. So maybe those types of people would find
this kind of unnerving.
I definitely noticed that there were a lot of noises. Like it wasn’t just pure silence.
就像我实际得努力让自己觉得是寂静的 否则 你知道的
Like I actually have to work hard to make things feel silent. Otherwise, you know, there
was the sound of like me just rubbing my beard or just like the rustle of your clothes or
every time you swallow or you breathe. Perhaps the weirdest thing I noticed was like my sense
of my heart. I just felt like it was pumping really hard, and I could feel almost like the
血液在全身沸腾 好像不是我听到的 而是我感觉到的一样
blood pushing up through me. It wasn’t like I was hearing it. It was just like I was feeling
it. And I was feeling it as though, in a way, my heart
was shaking my body.
That was something weird.
但是除了那些 没什么疯狂的 没有奇怪的幻觉或者类似的东西
But besides that, nothing crazy, no weird hallucinations or anything like that.
So I think the myth that you can’t stay in here for longer than 45 minutes is busted,
even though this is not Myth Busters. I still think it is not true.
Now if you really hate silence, you should always carry an audio book around with you.
And I can recommend a good one: The Fault in our Stars by my friend John Green. It is
那是一本特别好的书 自它发行以来 基本上一直是最畅销的谈论书籍
an excellent book and it has been basically the talk of the best sellers ever since it
was released. And soon there is a movie coming out and so you probably want to get through
the book before you go and see the movie. Now you can download this book for free by
going to Audible.com/Veritasium. Or you could pick any other book of your choosing for a
Audible是一个不可思议的网站 拥有超过十五万册 涉及所有文学类型
one month free trial. Audible is an amazing site with over 150,000 titles in all areas
包括小说 非小说和期刊 所以你应该去看一看那些书籍
of literature including fiction, non-fiction, and periodicals. So you should check them
out. The link is in the doobly-doo, as John would say.
So I would like to thank Audible for supporting me and I would like to thank you for watching.