• nondescripthandle@lemmy.dbzer0.com
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    2 months ago

    Humanity was not responsible enough with bitcoin to learn how to turn electricity into actual gold. Some nerds going to start setting up Tesla coils in caves soon.

    • Zorsith@lemmy.blahaj.zone
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      2 months ago

      I mean… actual gold isn’t crazy valuable these days, is it? It’s used in quite a bit of electronics for its corrosion resistance and conductivity IIRC.

      • jmiller@lemm.ee
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        2 months ago

        Gold prices have risen steadily for a long time, partly because of its use in electronics. Over $2500/ounce now. But another quirk of gold is the ease with which we can make very thin coatings of it over other materials, sometimes only a few atoms thick. So it is commonly used, but in very very small amounts per device.

          • chaogomu@lemmy.world
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            2 months ago

            The main reason to electroplate things in gold is that corrosion resistance.

            The thinner the coating, the better. Mostly because gold isn’t a very good conductor.

            Copper is one of the best conductors available. But the corrosion is the problem. It’s nonconductive.

            Also a fun fact. Stainless steel is a better conductor than gold. But gold is slightly easier to use in electroplating.

            • werefreeatlast@lemmy.world
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              2 months ago

              I think you might want to do a little digging in your undergrad science books:

              The units of electrical conductivity are measured in siemens per meter (S/m). Here’s the electrical conductivity of a few metals:

              Stainless Steel: 1.0 - 1.5 × 10^6 S/m
              Aluminum: 3.77 × 10^7 S/m
              Copper: 5.96 × 10^7 S/m
              Gold: 4.52 × 10^7 S/m
              Silver: 6.30 × 10^7 S/m
              

              In this list silver has the highest conductivity, and stainless steel the lowest conductivity.

          • jmiller@lemm.ee
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            2 months ago

            Well, that is the amount gold that is mined or recycled every year that is used in electronics. The thing is though, a lot of the gold used in electronics is never recovered. So a considerable amount of the gold used in electronics is removed from from circulation in a way the gold in jewelry or bullion or coins isn’t. It isn’t the primary driver of gold’s price increase, but it is a significant factor.