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[–] 2 points 1 month ago (4 children)

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.

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  • [–] 3 points 1 month ago (2 children)

    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?

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