And because of length contraction, Stella observes the distance between them shrinking by a factor of 2.

由于长度的收缩，史黛拉观察到她俩的间距离缩小了一半。

Length contraction happens for objects moving at regular speeds, too!

以恒定速度移动的物体的长度也会缩小！

As if time slowing down wasn't weird enough, there's also length contraction.

仿佛时间还没有足够奇怪地变慢，还有长度的收缩。

When time changes, that's called time dilation, and when distance changes, that's called length contraction.

当时间发生变化时，称为时间膨胀，当距离发生变化时，称为长度收缩。

We went over its two postulates, and their consequences: time dilation, a lack of universal simultaneity, and length contraction.

时间膨胀、缺乏全局同步和长度收缩。

Since length contraction isn't something we see in everyday life, it isn't part of our intuitive sense of physics.

由于长度收缩不是我们在日常生活中看到的，它不是我们直觉物理的一部分。

Length contraction means that if something is moving relative to you, its length in the direction that it's moving will seem shorter than it would if it wasn't moving.

长度收缩意味着如果某物相对于你移动，它在移动方向上的长度会比不移动时短。