SDcamps•演辩营全国英语演讲与辩论赛
We basically analyze the changes in the light that are recorded at every pixel in the video over time,and then we crank up those changes. 首先我们分析了录像中每个像素的光线随时间发生的变化，我们放大这些变化。 We make them bigger so that we can see them. 经过放大使我们肉眼可以看见这些变化。 The tricky part is that those signals,those changes that we're after, are extremel...
So over the past few centuries, microscopes have revolutionized our world. 过去的几个世纪，显微镜改变了世界。 They revealed to us a tiny world of objects, life and structures that are too small for us to see with our naked eyes. 它揭示了肉眼难以看到的物体，生命和结构的微观世界。 They are a tremendous contribution to science and technology. 它对科技进步做出了巨大的贡献。 Toda...
So here's the sound that we played in the room. 这是我们在房间中播放的声音。 And this is a high-speed video we recorded of that bag of chips. 这是我们摄制的薯片袋的高速视频。 Again it's playing. 同样， There's no chance you'll be able to see anything going on in that video just by looking at it,but here's the sound we were able to recover just by analyzin...
Maybe we could use those motions to tell us something about our thoughts or our emotions. 也许这可以告诉我们，我们的想法或情绪。 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. 我们同样也可以方法微小的机械运动,...