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Maybe we could use those motions to tell us something about our thoughts or our emotions.
也許這可以告訴我們，我們的想法或情緒。
We can also magnify small mechanical movements,like vibrations in engines,that can help engineers detect and diagnose machinery problems,or see how our buildings and structures sway in the wind and react to forces.
我們同樣也可以方法微小的機械運動,如引擎的震動，這可以幫助工程師診斷機械問題，或者看到建筑或結構的隨風搖動。
Those are all things that our society knows how to measure in various ways,but measuring those motions is one thing,and actually seeing those motions as they happen is a whole different thing.
我們知道這些變化可以通過其他方法測量，但是測量是一回事，肉眼看到的又是另一回事。
And ever since we discovered this new technology,we made our code available online so that others could use and experiment with it.
自從我們開發者這項新技術，我們便把代碼放到了網上，這樣其他人可以使用試驗它。
It's very simple to use.
用起來很簡單。
It can work on your own videos.
可以處理你自己拍的視頻。
Our collaborators at Quanta Research even created this nice website where you can upload your videos and process them online,so even if you don't have any experience in computer science or programming,you can still very easily experiment with this new microscope.
我們的合作伙伴，量研科技，甚至建了個網站這里可以上傳視頻并在線處理，這樣即使你沒有計算機科學或編程經驗也可以試驗這種新型顯微鏡。
And I'd like to show you just a couple of examples of what others have done with it.
我要演示幾個其他的例子別人用它做了什么。
So this video was made by a YouTube user called Tamez85.
這段視頻是一個叫Tamez85的YouTube用戶作的。
I don't know who that user is,but he, or she, used our code to magnify small belly movements during pregnancy.
我不知道他是誰，但是他(她)用我們的代碼方法了孕婦腹部的運動。
It's kind of creepy.
令人毛骨悚然。
People have used it to magnify pulsing veins in their hands.
人們用它放在自己的腕部脈搏。
And you know it's not real science unless you use guinea pigs,and apparently this guinea pig is called Tiffany,and this YouTube user claims it is the first rodent on Earth that was motion-magnified.
你知道要能被稱為科學必須用到豚鼠，顯然這只豚鼠叫蒂芙妮，這位YouTube用戶聲稱這是地球上首個運動被放大的嚙齒類動物。
You can also do some art with it.
你也可以用它進行藝術創作。
So this video was sent to me by a design student at Yale.
這是耶魯大學設計系學生發給我的視頻。
She wanted to see if there's any difference in the way her classmates move.
她想看看她同學運動的方式有何不同。
She made them all stand still, and then magnified their motions.
她讓他們靜止站立然后放大他們的運動。
It's like seeing still pictures come to life.
者看上去像是圖片有了生命。
And the nice thing with all those examples is that we had nothing to do with them.
這些例子的有意思的地方是我們沒有進行干預。
We just provided this new tool, a new way to look at the world,and then people find other interesting, new and creative ways of using it.
我們只是提供了新工具，一種看世界的新方法，然后人們就找到其他有意思、新的創造性地方法使用這個工具。
But we didn't stop there.
我們不滿足于此。
This tool not only allows us to look at the world in a new way,it also redefines what we can do and pushes the limits of what we can do with our cameras.
這個工具不僅使我們有了看世界的新方法，同樣它還重新定義了攝像機的功能限制。
So as scientists, we started wondering,what other types of physical phenomena produce tiny motions that we could now use our cameras to measure?
作為科學家，我們開始思考，其他物理現象造成的微小振動現在我們可以用攝像機來測量？
And one such phenomenon that we focused on recently is sound.
其中一種現象就是，聲音。
Sound, as we all know, is basically changes in air pressure that travel through the air.
聲音，我們知道聲音是一種壓力波，依靠空氣的壓縮變化在空氣中傳播。
Those pressure waves hit objects and they create small vibrations in them, which is how we hear and how we record sound.
壓力波碰到物體，就會引起物體本身的微小震動。這就是我們聽到了錄音的原理。
But it turns out that sound also produces visual motions.
這樣，聲音也會造成物體的視覺運動。
Those are motions that are not visible to us but are visible to a camera with the right processing.
這些運動，肉眼難于分辨但是通過處理攝像機卻可見。
So here are two examples.
這里有兩個例子。
This is me demonstrating my great singing skills.
這里我展示我偉大的歌唱技巧。
And I took a high-speed video of my throat while I was humming.
我哼唱時，我錄了一段高速視頻。
Again, if you stare at that video,there's not too much you'll be able to see,but once we magnify the motions 100 times, we can see all the motions and ripples in the neck that are involved in producing the sound.
如果您盯著視頻看的話，僅憑肉眼您是看不出什么端倪的，但是當我把運動方法100倍后我們就可以看到頸部的運動和波紋這是由于聲音震動造成的。
That signal is there in that video.
信號就藏在這段視頻中。
We also know that singers can break a wine glass if they hit the correct note.
我們知道，歌唱家可以震碎酒杯如果他們發出正確的音符。
So here, we're going to play a note that's in the resonance frequency of that glass through a loudspeaker that's next to it.
我們播放一個音符玻璃杯旁邊音箱發出的共振頻率。
Once we play that note and magnify the motions 250 times,we can very clearly see how the glass vibrates and resonates in response to the sound.
我們播放音符，然后方法運動250倍，我們可以清楚的看到玻璃杯是如何響應聲音共振的振動的。
It's not something you're used to seeing every day.
這是我們日常見不到的。
But this made us think. It gave us this crazy idea.
但是這激發了我們思考。給我們一個瘋狂的主意。
Can we actually invert this process and recover sound from video by analyzing the tiny vibrations that sound waves create in objects,and essentially convert those back into the sounds that produced them.
我們能不能通過分析聲音在物體上造成的微小振動從視頻中逆向重構出聲音來呢，重構出原來的聲音呢？
In this way, we can turn everyday objects into microphones.
依靠這種方法，我們可以把任何物體變成麥克風。
So that's exactly what we did.
我們真的照做了。
So here's an empty bag of chips that was lying on a table,and we're going to turn that bag of chips into a microphone by filming it with a video camera,and analyzing the tiny motions that sound waves create in it.
這是一個空薯片袋，放在桌上，我們要把這個薯片袋變為一個麥克風用攝像機拍攝視頻然后分析視頻中聲音造成的微小振動。
