I am sure you all know from physics class about how light moves in microscopic ways and that we can only see light when the wavelength of that light is in a specific range.
我相信，你们在物理课上都学过光是如何以微观的方式运动的，以及只有在光的波长在特定的范围内时我们才能看到光这一事实。
In the past people didn't know that light travels faster than sound.
过去人们不知道光比声音传播得快。
The precise thickness at which the fibre traps the light depends on the wavelength of that light.
纤维捕捉光束的确切厚度取决于那条光束的波长。
The precise thickness at which the fibre traps the light depends on the wavelength of that light.
纤维捕捉光束的确切厚度取决于那条光束的波长。
In that light, aging itself might be seen as something treatable, the way you would treat high blood pressure or a vitamin deficiency.
从这个角度来看，衰老本身可能是可以治疗的，就像治疗高血压或维生素缺乏症那样。
No filtering and processing of that light is required.
此光线无须进行过滤及处理。
Turns out that light is needed, it's a photochemical reaction.
这个分解反应需要光，是一个光化学反应。
Many places have dazzling displays that light up the night.
很多地方都有能够点亮这个夜晚的绚丽多彩的表演。
Nor is it only jets that light-attack turboprops can outperform.
轻型涡轮螺旋桨攻击机也不是仅仅比喷气战机优越。
The wavelengths of that light are our key to assessing conservation.
它们的波长就是我们评估是否守恒的关键。
On the brink, on the brim, on the cusp — praise song for walking forward in that light.
在悬崖的边缘，在酒杯的边缘，在极点——赞美那光明中的前行。
On the brink, on the brim, on the cusp - praise song for walking forward in that light.
在悬崖的边缘，在酒杯的边缘，在极点——赞美那光明中的前行。
You would die, and he flicks on that light again which is your light. What is the term?
你会死，然后上帝向你的灯弹指一挥，那个词是什么？
It seems that light energy will be an important subject of scientific research in the future.
看来，在未来的年代里，光能是科学研究的重要课题。
I well remember how mystified I felt at this, for I had not thought of my feeling in that light.
我清楚地记得对此感到多么迷惑，因为我没有从那个角度考虑我的感觉。
That light can sometimes become so distorted that it actually appears to ring the nearer galaxy.
但是，有时候这些光变得过于弯曲，在第一个星系周边形成环状。
If we see a person first in a good light, it is difficult subsequently to darken that light.
如果我们对一个人的第一印象很好的话，想要把这个印象变坏也是很难的。
And design tweaks have improved efficiency by ensuring that light can escape from LEDs easily.
精巧的设计保证光线可以从LED中轻松释出，从而改进其功效。
The resulting cascade of electrons and holes is easy to detect, showing that light has struck .
随之而来经过放大的电子跟空穴很容易检测到，这就表明有光线经过。
Tungsten light bulbs cast very yellow light. And any surface that light bounces off can add its color.
钨丝灯光明显偏黄，而且反射这种光线的表面也会呈现出相应的颜色。
Research suggests that light stimulates brain chemicals that improve mood and increase motivation.
研究显示光线可以刺激大脑产生化学物质，改善人们的情绪并提升积极性。
It is not only jets that light-attack turboprops can outperform. Armed drones have drawbacks, too.
轻型涡轮螺旋桨攻击机的经济性不仅比喷气式战斗机优越，与武装无人机相比也毫不逊色。
Gold can be pounded into a sheet so thin that light passes through it, yet the sheet doesn't crack.
它可以被压成薄薄的一片，薄到透光却不会断裂。
So it seems that light swearing can be useful, even in a relatively formal situation like a lecture.
这样看来，轻微的咒骂似乎是有用的，甚至是在比较正式的场合，如讲座。
And that light pollution could_3_our circadian rhythms, which control not only sleep, but metabolism.
而生理节奏不仅控制着人们的睡眠，还控制着人们的新陈代谢。
They took advantage of the fact that light bends, or refracts, when it moves from one medium to another.
他们利用了这样的一个事实：当光从一个介质进入到另一个介质时，会发生弯曲，或折射。
Photo Tip: Remember that light can bring emphasis to what you want the viewer to be drawn to in a photograph.
摄影小贴士：记住，光线可以强化你希望观众看到的东西。
that includes systems like Ms.Ruto's and solar panels that light American parking lots and football stadiums.
这部分装置包括露托小姐使用的系统，美国停车场和足球场馆使用的照明系统。
that includes systems like Ms.Ruto's and solar panels that light American parking lots and football stadiums.
这部分装置包括露托小姐使用的系统，美国停车场和足球场馆使用的照明系统。
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