A photo from open sources
Ladies and gentlemen, it’s time to say goodbye to privacy in the place where she is most intimate – in the toilet. This is unusual the cafe is located in Vienna, where they installed transparent doors in the toilet, which may become opaque if the user locked from the inside. For many people, use the toilet in public areas are inconvenient enough, but cafe owners “Diglas”, in Vienna, Austria, decided to improvise with transparent glasses in the toilet that allow anyone who enters there to literally catch you with your pants down. Fortunately all not as bad as it seems. These smart toilet doors can turn opaque by turning the switch. All, what the user has to do is lock the door when he is inside and the transparent glass door becomes opaque. This is a really original trick, but the video YouTube, which shows them in action, also gives no explanation. “magic” that makes them visible or invisible in one instant.
Fortunately, some comments after the video shed light on these unique technologies. “In fact, everything is very simple. It is connected with glass made of silver halide, whose molecules allow light to pass when voltage is turned off, its molecules are randomized to absorb more light, making glass translucent, “one user writes on YouTube
