Take a Test of Courage in Japanese Transparent Public Toilets
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Normally, privacy is required when going to the toilet, right? A “transparent toilet” appeared in a park in Shibuya, Tokyo, Japan. The reason why this toilet has a transparent design is that public toilets at night are prone to dead ends, but as long as the door is locked, the electronically controlled liquid crystal glass will become opaque.
一般而言，上厕所需要保护隐私，对吧？但是在日本东京Shibuya的一个公园里出现了一间“透明厕所”。这个厕所之所以是透明的设计，是因为晚上的公厕会变成死角（不容易被找到），但只要锁上门，电子控制的液晶玻璃就会变成不透明的。
The use of this design is to prevent criminals from hiding in the toilet cubicle and assaulting passers-by who come in to go to the toilet when the night is small and dim. Passers-by can also see the situation inside to avoid danger.
使用这种设计可以防止罪犯躲在公厕隔间里，袭击那些在昏暗的夜晚去卫生间的路人。路人可以看见公厕里面的情景并避免危险的发生。
The principle is that electronically controlled liquid crystal glass is used in the toilet, and the glass interlayer is covered with liquid crystal molecules. When it is energized, the arrangement of the liquid crystal molecules will be changed to allow light to pass through.
厕所的工作原理是利用电子控制液晶玻璃，这种玻璃的夹层充满了液晶分子。当给它提供电力的时候，液晶分子的的排布将发生改变使光可以通过。
▲ How it looks when the toilet is not occupied
If the power is cut off, the liquid crystal molecules will revert to irregular arrangements, the incident light will be scattered, and the glass will become opaque.
如果切断电力（供应），液晶分子将恢复到无序状态，（进入到玻璃夹层中的）光线会被分散，玻璃就会变得不透明。
▲ When it is locked
However, there are some people posing the question--"what happens if the device malfunctions?" --which is a very important question.
然而，也会有人提出这样的疑问:“如果该设备发生故障怎么办?”这是一个非常重要的问题。
This is not the first time Japan has introduced transparent toilets that can turn opaque while in use.
这并不是日本第一次推出——在使用时变成不透明的透明厕所。
Back in 2014, Oita city introduced transparent toilets which turn opaque when the sensors detect motions.
追溯至2014年，Oita城市引入了透明厕所，其当感应器检测到人们的手势或者动作时厕所便会变为不透明。
However, these toilets often lose their opacity at untimely moments, Kotaku reported.
然而，据Kotaku报道，这些厕所经常会在不合时宜的时刻变得透明。
The sensors could not detect movement for 35 seconds and the toilet turned transparent while the user is still inside.
如果传感器在35秒内无法探测到有移动，而使用者还在厕所里时，厕所就变透明了。
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