One way mirror

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Offline Nobody's Confidant

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« on: 14/01/2008 17:31:54 »
You know, like in the interrogation rooms in detective shows. How do they work?
Nothing is absolute. It takes a thousand people to make a stereotype, only one to grind it into the dust.

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another_someone

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Offline Nobody's Confidant

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« Reply #2 on: 14/01/2008 17:44:36 »
hm I see.
Nothing is absolute. It takes a thousand people to make a stereotype, only one to grind it into the dust.

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Offline Pumblechook

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« Reply #3 on: 14/01/2008 18:44:20 »
One type uses a very thin layer of aluminium which combined with the glass refelects one way and transmits the other way. 

Another type has tiny holes in the reflective surface which is only reflective on one side.  Looking one way you see though the holes.  They other way you are 'blinded' by the reflection and don't see through.


Both require suitable lighting conditions on both sides.   

I suppose such mirrors are more expensive than cameras these days.
« Last Edit: 14/01/2008 18:57:12 by Pumblechook »

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lyner

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« Reply #4 on: 15/01/2008 11:27:12 »

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Offline Nobody's Confidant

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« Reply #5 on: 16/01/2008 17:25:19 »
Nothing is absolute. It takes a thousand people to make a stereotype, only one to grind it into the dust.

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lyner

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« Reply #6 on: 16/01/2008 20:03:01 »
It's the way I tell 'em.