Disproving the 2 way Mirror Test

I am aware of the well known theory that "if there is a gap, it's a real mirror; no gap, it's a 2-way mirror". This video disproves that. The first 2 surfaces that I touch are a side of a tea kettle and a car side mirror, then I touch a 2-way mirror in our office (the office is a police detachment).

[darkmanafest]

The gap is caused my mirrors having a clear layer of glass over the reflective surface. Mirrors with no gap are reflective on the surface and don't have a 2nd glass layer. A kettle obviously wouldn't have clear layer of glass over it's reflective surface. A car mirror won't either because the glass would interfere with the passage of light. 2 way mirrors typically don't have a protective glass layer but there is no reason they can't have one. So the finger test is really ineffective .-.

[JonMacSAS]

everywhere on the internet says its the

[jamesjewell]

Yes, I do this in public because I've actually found 2 way mirrors before

[karlfrank]

The best way to tell is with an LED light. Also turning off lights in the room too search for ambient light behind the surface.

[barryjohnson]

For many years I have installed stainless steel mirrors in public restrooms so that people wouldn't break them. If you put your finger on one there won't be any gap because the surface is polished, but these definitely are NOT two way.

[sophiesalazar]

its "no space, leave the place"...

[LordOrwell]

This is totally incorrect.  For starters, a home mirror reflects from the chrome coating on the back of the glass.  There's a gap no matter what.  However, i don't know why everyone would think a two-way mirror is different.  It also reflects from the back because if the reflective coating were on the front it would get worn off with cleaning.  The only difference is the coating on a 2-way mirror is a reflective tint.

[janszreniawski]

Thank you! I needed proof to tell people that they are wrong about mirrors, but I couldn't find anything in my house (except spoons) to prove that!

[amysnews]

It all depends on what the mirror (either kind), technically the reflective layer, is covered with. Most mirrors that hang in dressing rooms, bathrooms, etc have glass OVER the reflective layer which is what creates the "gap", most 2 way don't have anything at all or a very thin film which is why there is no "gap". BUT, if you put the thin film over the reflective layer even on a "real" or 1 way mirror, much like what is on a car side view mirror then just like the typical 2 way there will be no "gap' and if you put a layer of glass over the reflective layer of a 2 way mirror or any clear barrier thicker than a film then it will produce the "gap" in the finger test. It's usually still a fairly reliable test in most situations as both types are usually standard made one or the other but no it is not a full proof test on either.

[michellesullivan]

There is a mirror tint of sorts on the glass on the inside of the house. When Marvin touches the glass on the outside of the house his finger is the distance away from the mirror tint as the glass is thick, therefore creating the gap. Touch any mirror in your home there will be no gap 

[sofiaplayz]

Found a fricking 2 way mirror in my bedroom

[Trisepta]

There is a post on Facebook being shared that uses a screenshot from this video at around 0:19
However, it labeled as "2 WAY GLASS - NO GAP"

[chrissybrown]

Can a thin cheap mirror not show a gap? This may sound crazy but I am concerned about one of the mirrors in my master bath (a rental) one night I was putting on a cleansing mask, not clothed, I heard light tick noises, I thought it was the light bulbs and removed them one st a time, did not help. When screwing one in, I balanced myself on the mirror. It slightly moved a tiny bit inward when pushing on it. When you press it it moves slightly to were the reflection is a tiny bit distorted, This scared me. So I did the finger test. There is no gap, on the other mirror there is a gap. I pryed a side piece off. the mirrors have different thicknesses. The one in question, with no gap is very thin. The other is pretty thick. Could this cause a gap or not? I wed would like a little more info before I pry the entire mirror off of the wall and look even more like a paranoid freak.

[zizyip]

Yes it's been proven there actually no way of telling if the mirror is a two way mirror if your only ever on one side of it.

[Narutokunie]

I still go to this video to show my friends just to confuse them 😂

[saratmondal]

Yes if the reflecting coating(thin film which is reflect 70%of light) pasted in backside like then finger test is not enough.

[Texassince]

Unfortunately a real mirror can.be made with no gap, and a 2 way mirror can be made with a gap. So there is no magic way to detect a 2 way mirror.

[carterschuld]

Your theory is flawed - the mirrored finish on a coffee maker is on the OUTSIDE surface - the mirrored image in a mirror is INSIDE the glass - there is a layer of glass between the finger and the reflective surface.

[anthonyxyy]

How come there are so many wrong answers on utube everything can’t be that difficult

[viem]

No, two-way mirrors have no gap. Real, authentic mirrors have a thick gap. If you are in a public restroom or something, then the absence of the gap means trouble.