• im_fine_sandy@nord.pub
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    14 hours ago

    Maybe people do know that?

    Drinking / tap water here comes from a limestone aquifer. Tap ware and shower screens and toilets develop a calcium carbonate build up that needs to be chemically removed.

    I think anyone who’s been in a cave and heard how stalagmites form would remember that it’s calcium carbonate.

    • glimse@lemmy.world
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      14 hours ago

      I learned about it in school and have seen them in a caves but still had to look it up for the bit.

      How about this…does the average person know that the transport latency of Dante audio is around 150 microseconds?