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Listen to part of a lecture in a material science class.
請聽材料科學課上的部分內容。
OK.Last time we finished going over some of the fundamental concepts of nanotechnology,
上次我們講完了關于納米技術的一些基本概念，
the multi-disciplinary science of manipulating or controlling extremely small units of matter on the scale of molecules or even atoms.
這是在分子或者甚至原子規模上操縱極小單位的物質的多學科科學。
So, I want to talk about how nanotechnology is being used today.
所以我想講一講如今我們是如何應用納米技術的。
And just to give you an idea, we’ll look at one particular application.
為了讓你們有個大致了解，我們來看一個具體的應用案例。
A team of material scientists in Massachusetts has been working on a new ultra-thin coating,
一組Massachusetts的材料科學家一直在研究一種新的超薄涂層，
a nano coating that might be applied to objects like bathroom mirrors, car windows, and eye glasses to prevent fogging.
一種也許能涂在像浴室鏡子、車窗和眼鏡上防止起霧的納米涂層。
And the coating has the potential to be a permanent solution, unlike the kinds of anti-fogging spray-on liquids that are on the market today.
這種涂層有永久性解決問題的潛力，不像現在市場上的那種防起霧的噴霧型液體。
Now, fogging often occurs when a cold surface comes into contact with warm moist air, such as when a glass shower door or mirror fogs up during a warm shower.
當一個冰冷的表面接觸到了溫暖的濕氣時就會起霧，比如一個淋浴室的玻璃門或鏡子會在洗熱水澡時起霧。
Now, what’s actually happening is, what the fog is, is thousands of tiny spherical water droplets condensing on the surface of the glass.
真正發生的是，這個霧是好幾千個微小的球形水滴凝結在玻璃表面。
Light hits the water droplets and is scattered in random directions, causing the fogging effect.
光線照到這些水滴上并且發散到了任意方向，由此導致了起霧效應。
