旋转镜像

展品说明：

展品内装有相互平行的三面镜子，光线从一端经过三次反射才能到达另一端。反射的结果将正像变为倒像。

Exhibit Explanation:

The exhibit actually contains three parallel mirrors and so the light will be reflected three times to travel from one side to the other. As the mirrors revolve, the image will change from right reading to the inverted one.

操作方法：

1、 两位参与者各在展品的一端；

2、 转动并观察镜内影像。

Operating Instruction:

1. Two participants stand at each end of the exhibit.

2. The participants revolve the mirror and observe the image formed in the mirror.