Instrument is a Geonics EM16 VLF receiver, using in the mineral exploration industry to find buried linear conductors.

  • Blue_Morpho@lemmy.world
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    9 months ago

    I greatly prefer citric acid. It comes in crystals so a small tub equals gallons of vinegar, it doesn’t smell bad, and you can control the strength by dissolving more crystals into water.

    It’s incredibly fast compared to vinegar at cleaning battery alkaline.