We know that UV light gets absorbed by glass, so it shouldn't be able to go through the glass.

我们知道紫外光会被玻璃吸收，所以它无法通过玻璃。

麻省理工公开课 - 化学原理课程节选

I mean, there is an emptying out of positive meaning in the very awareness that, after all, the red light could mean "go" I'm about to go on and give more examples.

这就事我们不能主动赋予符号意义,但是是要认识到，红灯也有表示，出发，的意思“,我会用更多例子来说明它。

耶鲁公开课 - 文学理论导论课程节选

And if we do, in fact, hit it with light to get the electrons off, it will go back to the straight up in position, or if it gets knocked hard enough it does that, too.

而且如果我们这么做，事实上，用光轰击它以逐出电子，它就会在原位置沿直线返回，或者如果它被撞击的足够猛烈,也会出现上述现象。

麻省理工公开课 - 化学原理课程节选

Let's make the red light the symbol of 'go.'" And now with the ecological movement it would be very difficult to make the green light the symbol of "stop," and in any case all sorts of complications would arise. Right?

我们来假设，红灯的意思是出发“,那么难道,绿灯的意思是停止吗？,这样会引起各种不必要的麻烦？

耶鲁公开课 - 文学理论导论课程节选

There are a lot of ways in which a red light means neither "stop" nor "go," but we are sort of confining ourselves so far to the ways in which a red light has something to do with locomotion or the lack thereof.

很多时候红灯既不表示停,也不表示走“,但是我们却惯性的认为,红灯就是提示开始或者停止移动。

耶鲁公开课 - 文学理论导论课程节选

c We know it's very specific for light because in this equation is c, the speed of light. So any time you go to use this equation, if you're trying to use it for an electron, just ask yourself first, does an electron travel at the speed of light?

我们知道它只对光适用是因为在这个方程里有,光速，所以下次你们用这个方程前，如果你们要把它用到一个电子上，先问问你自己，电子的运动速度是光速吗？

麻省理工公开课 - 化学原理课程节选