• pezhore
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    4 months ago

    I can’t wrap my head around how the fourth one works.

    • fishos@lemmy.world
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      4 months ago

      The metal plate isn’t flat. It bends upwards with a prong shaped piece. It’s hard to see, but look at the reflections of light on it.

      • pezhore
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        4 months ago

        Ah, yeah, that makes sense. It just looked like a weirdly cut metal plate flush on the top of the rail.