I can ask myself now the question, how far does electromagnetic radiation, how far does light travel in the time of one period capital t?

现在我们能问，电磁辐射，有多远，光在一个周期T内，行进了多远？

youdao

Doesn`t reading in poor light make the eyes focus more and cause myopia to increase?

在暗光下阅读，不会使双眼过度聚焦，引起近视加重？

youdao

Well, it goes with the speed of light, so in t seconds, it moves a distance cT.

它以光速前进，所以在T秒内，它前进了cT的距离。

youdao

Tired of waiting, he told the ground crew: "Why don't you fellows solve your little problems and light this candle."

VOA: special.2009.06.17

So it turns out that we can, in fact, use the energy levels to predict, and we could if we wanted to do them for all of the different wavelengths of light that we observed, and also all the different wavelengths of light that can be detected, even if we can't observe them.

事实上我们可以用能级预测,而且如果我们想的话，我们可以,对所有观测到的光的波长预测，也可以对所有探测到的光预测,即使我们看不到它们。

麻省理工公开课 - 化学原理课程节选

So this last version of the red light introduces interesting complications which I don't think should confuse us.

所以，关于红灯的这最后一个例子,让我们思考了平时不会思考的问题。

耶鲁公开课 - 文学理论导论课程节选

Black adds that the company also benefited from the foresight of what she calls a "wear now" merchandising strategy, stocking stores with items like long-sleeved, light T-shirts that can be worn from the waning days of summer right on into the fall.

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He's wearing a ratty blue sweater with a light brown T-shirt over it and the collar of a shirt spilling out over the top of it all.

NPR: The Redemptive Power of Music, and Friendship

It's based on his work using functional magnetic resonance imaging brain scans that first demonstrated that, when people are asked to imagine themselves in retirement, the parts of their brains that usually "light up" when they think about themselves don't light up at all.

FORBES: Magazine Article