August 17, 2010
FW: Two Way Mirror Warning
Editor: The following email (which is crossed out below) has been circulating since 2003. It is definitely time to lay it to rest because it is FALSE according to Snopes.com, the urban legend- forwarded email-folklore-myth debunking site.
Snopes tells how to ascertain a two-way mirror and it is much more simple than the below “fingernail gap test” which, according to Snopes again, is not all that efficient in detecting two-way mirrors anyway.
Here is Snopes statement on the subject of how to detect a two-way mirror:
TRUTH: Transparent mirrors are most obviously distinguishable from ordinary mirrors in that they’re not hung on the walls as ordinary mirrors are, but they’re set into walls (or doors) as windows are.
In other words, if there’s a wall behind a mirror, the mirror is almost certainly an ordinary one–a transparent mirror would be part of the wall itself.
Also, the lighting in front of a transparent mirror must be much brighter than the lighting on the other side (where the hidden observers are) for it to work effectively, and some light leaks through from the brighter side to the dimmer side…(there is more details if you want to click on Snopes link above for the full story.)
Go to Snopes (or some such debunking site) to verify the truthfulness of “warnings” and “I-don’t-want-to-scare-you emails.
Lay the following email to rest…forever! It is false!!
FALSE! Two Way Mirror FALSE!
I thought it was quite interesting! And I know in about 30 seconds
you’re going to do what I did and find the nearest mirror….. Do you
know how to determine if a mirror is 2-way or not?
This is not to scare you, but to make you aware. A policewoman who
businesswomen passed this on. When we visit toilets, bathrooms, hotel
rooms, changing rooms, etc.., how many of you know for sure that the
seemingly ordinary mirror hanging on the wall is a real mirror, or
actually a 2-way mirror (i.e., they can see you, but you can’t see
them)? There have been many cases of people installing 2-way mirrors
in female changing rooms. It is very difficult to positively identify
the surface by just looking at it.
So, how do we determine with any amount of certainty what type of
mirror we are looking at? Just conduct this simple test:
Place the tip of your fingernail against the reflective surface and if
there is a GAP between your fingernail and the image of the nail, then
it is a GENUINE mirror. However, if your fingernail DIRECTLY TOUCHES
the image of your nail, then BEWARE, FOR IT IS A 2-WAY MIRROR!
“No Space, Leave the Place”
So remember, every time you see a Mirror, do the “fingernail test.” It
doesn’t cost you anything.
Remember: “No Space, Leave the Place”

