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In our daily lives, we use fitting rooms in hotels, shopping malls, and clothing stores all the time. But few people realize that what looks like an ordinary mirror could be a threat to your privacy: a two-way mirror. These mirrors are transparent on one side and reflective on the other, allowing someone to see you without your knowledge.
You might be wondering, “How can I tell the difference and protect myself?” Fortunately, there are a few simple tests you can do to find out.
1. The Difference Between a Real Mirror and a Two-Way Mirror
A real mirror is made of glass with a reflective coating on the back. When you look at your reflection, the light travels through the front glass layer, bounces off the reflective coating, and comes back to your eye. This creates a small gap or space between your fingertip and its reflection.
A two-way mirror, on the other hand, has a very thin, reflective coating applied to the front of the glass. Because there’s no space between your finger and the reflective surface, your fingertip appears to touch its reflection directly.
This is the key difference that allows you to perform the most common test.
2. Simple Ways to Test
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