Identify a One-Way Mirror

Thursday, July 10, 2008

Identify a One-Way Mirror

How do you check whether the mirror in the dressing room in a hotel is a one-way mirror or not?

Till today I thought the fingernail method works fine. You were to place your fingernail against the surface: if there is a gap between the image and the nail, the mirror is genuine; if they touch, it is a one-way mirror.

But after reading a post at Lifestyles blog, I think I was wrong.

You can read how one-way mirror (also known as two-way mirror) works here.

For it to work the spy-ee needs to be in a brightly lit room, while the spy-ers need to be in the dark.

There are some things you can do to identify whether you are being watched...

- Two way mirrors usually act as windows and are therefore set into the wall itself. Real mirrors tend to hang and are not flush with the wall.

- The real fingernail test is to tap the mirror with your fingernail. If it makes a hollow sound there’s a good chance it’s a fake mirror with an open space behind it.

- Turn off the lights. If there is a hidden camera or a team of sweaty detectives you’ll be able to spot them through the glass. A flashlight will help to illuminate and expose the room on the other side.

- If you’re in a changing room and you don’t have access to the lights, simply go in for a closer look, cupping your hands around your eyes and getting your face as close as possible to the glass. If it’s a fake mirror you’ll be able to see right through it.

Hope this helps. If you have any other ideas, please comment.

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