relativity

According to the theory of relativity, nothing can travel faster than light.

根据相对论，任何东西都无法超越光速。

Albert Einstein predicted this in 1905, when he introduced the concept of relative time as part of his special theory of relativity.

阿尔伯特·爱因斯坦在1905年预测到了这一点，当时他在狭义相对论中引入了相对时间的概念。

The visit was a triumph, and he said to a friend excitedly, "I was able to convince Hilbert of the general theory of relativity."

这次访问是一次胜利，他兴奋地对一个朋友说：“我说服了希尔伯特相信广义相对论。”

He claimed that moral relativity was his real concern.

他声称自己真正关心的是道德的相对性。

Thus time and time's relativity are measurable by any hourglass, alarm clock, or atomic clock that can measure a billionth of a second.

因此，时间和时间的相对性可以用任何沙漏、闹钟或原子钟来测量，而原子钟可以测量十亿分之一秒。