Electric discharges underground cause gold atoms to accumulate, which eventually forms gold nuggets, the researchers suggest.
  • chaogomu@lemmy.worldEnglish
    51·
    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.worldEnglish
      5·
      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.