• otacon239@lemmy.world
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      2 months ago

      Suppose you were in this situation and suspected something. I’d imagine the space behind it would be totally dark, so what would be a safe way to check if there’s a gap in between without breaking the glass?

      • vrighter@discuss.tchncs.de
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        2 months ago

        there are no “one-way” mirrors. You just need to make your side darker than the other side (there’s a reason the observation side of a two-way mirror is never brightly lit, but the interrogation room is)

        Tldr: put your face right up against it and use your hands to block out as much light as you can

        • SaveTheTuaHawk@lemmy.ca
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          2 months ago

          there are no “one-way” mirrors. You just need to make your side darker than the other side

          15 upvotes? Really? Mirrors are painted on the back with opaque paint.

          Are we cross posting this to a flat earth science forum?

      • GuyFawkes@midwest.social
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        2 months ago

        I read a long time ago that putting something flat against the mirror will show you. I think if the mirror is legit you’ll see the reflection directly on the surface, if it’s two way the reflection will look like it’s inside the glass.

        But I’ve never had the chance to actually test that, so take it with a grain of salt.

        Edit: Turns out this is incorrect; thanks to everyone for educating me!

        • SaveTheTuaHawk@lemmy.ca
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          2 months ago

          think if the mirror is legit you’ll see the reflection directly on the surface, if it’s two way the reflection will look like it’s inside the glass.

          scientific use mirrors are front mirrors, the metal is deposited on the outer surface. They are delicate and difficult to clean.

          Every household mirror is rear coated, and then painted to protect the metal from oxidation.