I know you have read this from many forwarded emails. Simply put your fingernail at the mirror and you’ll be able to tell if the mirror is indeed two-way or not. Apparently, that’s not the true way of detecting a two-way mirror. Here’s some information about two-way mirrors and how you can detect or test out a two-way mirror.

Some background information about two-way mirrors.

• They are normally built or set into a wall. If you spot a hanging mirror on the wall, most likely it is not a two-way mirror.
• A two-way mirror lets light pass through in both directions. On the side where there is bright light, a person will see a reflection in the mirror. On the side that is dark, the person will see through the glass.

With some of these information in hand, you can now do several tests to determine if a mirror is two-way.

• Cup your hands around your eyes and put your face against the window, as if looking into it. If it is a two-way mirror and the other side of the mirror has some form of lighting, you will be able to see something through the glass. However, if it is totally dark on the other side, then you aren’t likely to see anything.
• If this is the case, you can do another test which is to gently tap on the mirror. A two-way mirror will produce a hollow sound whereas a one-way mirror will return a dull sound.
• One other way to test out a two-way mirror is to switch off the lights in the room. If it is a two-way mirror, then by the information given above you will be able to see what’s on the other side of the glass. Remember though, that the side that has more light will be the one that sees the reflective side of the mirror.

Related Tips

• How to survive a falling lift
• Some health tips in our current lifestyle

This post is brought to you by: Useful Tips For Life

How to detect a two-way mirror