光速是什么？
Do you know the speed of light?
你知道光的速度吗？
How is the speed of light measured?
光速是如何测定出来的？
Signals travel at the speed of light.
信号以光的速度传播。
The electron is not moving at the speed of light.
电子不是以光速运动的。
The speed of light is an important constant.
光速是一个重要的常数。
The speed of light is an invariant constant.
光速是一个不变常数。
The speed of light is an invariant constant .
光速是一个不变常数。
Scientists have determined the speed of light.
科学家们已测定出光的速度。
Radio waves also travel at the speed of light.
无线电波也是以光速传播的。
Your mind will be moving at the speed of light.
你的思想将以光速运转。
I thought nothing is faster than speed of light.
我想没有比光速更快的。
Assume the speed of light is the same for both observers.
假设对于这两个观察员而言，光速是相同的。
The answer is impossible to travel as the speed of light.
答案是不可能的旅行光速的速度。
Wants to live the speed of light and feel its directness .
愿意住光的速度和感觉它的直接因果关系。
He spent many years trying to figure out the speed of light.
他用了许多年想算出光的速度。
Again, no difference in the speed of light could be detected.
再次证明了探测的光速是没有不同的。
It's just that the finite speed of light distorts what you see.
只是有限的光速歪曲了你看到的东西。
Hardly can we imagine the speed of light, as it travel so fast.
光传播得如此之快，以致我们难以想象它的速度。
Yes, the universe itself will eventually outpace the speed of light.
有啥能比光速更快吗？Yes，我们所处宇宙自身的速度最终就将超过光速。
It is dangerous using this method to measure the speed of light.
用这种方法去测量光速是危险的。
We also chased even faster that is two times the speed of light.
我们也必须追得更快也就是光的速度的两倍。
So they ran the test again - and broke the speed of light for a second time.
为了验证实验正确性，他们又一次进行了此项实验，并且第二次打破了光速。
So they ran the test again - and broke the speed of light for a second time.
为了验证实验正确性，他们又一次进行了此项实验，并且第二次打破了光速。
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