• Donjuanme@lemmy.world
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    3 days ago

    Along with the people pointing out conductivity.

    Who says water is not compressible? Takes a lot of energy, but the big bang didn’t happen in a sea of water.

      • Donjuanme@lemmy.world
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        2 days ago

        Yeah, it’s been 15 years since I’ve taken oceanography, but the density of water is determined by its temperature.

        • Brave Little Hitachi Wand@lemmy.world
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          2 days ago

          Density is certainly changeable in water with temperature, but density isn’t exactly the same thing as compression.

          TIL A waterjet cutter pressurizes the water to something like 90,000 psi and it gets about 14% more dense. I always thought those things just had the water highly pressurised, but not actually compressed.

          • Donjuanme@lemmy.world
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            2 days ago

            I want to posit that because water isn’t compressible at forces we experience commonly, it doesn’t mean it isn’t compressible. For 99.999% of the water rules we concern ourselves with water should be considered incompressible, but there are exceptions to every rule

      • peoplebeproblems@midwest.social
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        3 days ago

        To be fair, ive seen what the ocean can do to carbon fiber tubes. If it can do that and still not compress, its pretty damn incompressible.

    • sga@lemmings.world
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      3 days ago

      most solids and liquids are practically incompressible (when comparing with gasses). there is a relationship between bulk compressibility, shear stress and youngs modulus for solids, which can be extended for liquids. It does not work for gasses