• ceenote@lemmy.world
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    17 天前

    As I recall, the “Vampires have no reflection” stemmed from mirrors of the time usually being polished silver. So, I guess the vampire can do this if they’re okay with having silver pressed up against their face.

    • thefartographer@lemm.ee
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      17 天前

      How does that guy with smoke coming out of his eye patch always know when I’m sneaking up on him?? At night. While he’s screaming.

      • Grabthar@lemmy.world
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        17 天前

        Pretty sure they just poured silver nitrate over glass. You can still buy kits to do that to re-silver old mirrors for the original look. From what I can find, the layered ones were older, and they used tin and mercury which made breaking a mirror a rather unlucky event.

    • redjard@lemmy.dbzer0.com
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      17 天前

      Mirrors now are chemically deposited silver to my knowledge.
      Deposited on the back of the glass, then a protective layer applied on top. The amount of silver in that assembly is very low, and none is exposed, but the reflective component is the silver.

        • redjard@lemmy.dbzer0.com
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          17 天前

          I’m not certain, can’t find any reliable info on this.
          Shops don’t seem to specify the reflective material. In addition, aluminium is commonly used to describe the frame, and silver as a color for the frame or other parts, making it hard to get any info on the sales side.

          On the production-tech side, I see some pages talk only about silver, others mention both silver and aluminium. Silver commonly has a description of the chemical process at times (silver nitrate silvering), haven’t seen one for aluminium yet.

          Price wise, metal should be fully opaque around 10nm. Assuming a generous 100nm thickness, that makes 0.1€/m² worth of silver. I doubt material cost is a factor.

          Performance wise, silver seems better than aluminium in its reflectance. Honestly I don’t get why anyone would be making aluminium mirrors.

          Does anyone have more info on this?