• dejected_warp_core@lemmy.world
      link
      fedilink
      arrow-up
      18
      ·
      edit-2
      5 months ago

      I’m not a geologist, but I’m imagine that the deep ocean would be a colossal underwater glacier, with intermixed sedimentary layers. Kind of like what we have with methane hydrate deposits, only much, much deeper. The super-deep ocean simply wouldn’t exist, and we might not even know about the Mariana Trench, or a lot of other sea floor features. Also, it’s possible a different proportion of the world’s water would be frozen in this way.

      With ice as a part of the sea floor, it would also interact with subduction zones at continental edges. That might push a LOT more superheated water into volcanoes, faults, and everywhere else water could go. That would probably make for a lot more geysers in such areas, and volcanic eruptions would be far more energetic.

      The trajectory of human history and technology would also be changed. There might have been fewer ice bridges between continents during the last ice age. Ice-skating wouldn’t become as common a thing until we get refrigeration. Harvesting ice in the winter would require bodies of water to freeze solid first, making it impractical except in shallow areas.

      I’m also going to wager that glaciers would behave differently too. I don’t know enough about their dynamics, but I wonder if having meltwater on the bottom helps lubricate their movements somewhat. Kind of like a lava flow, only slower. Inverting that relationship might make glaciers far less mobile.

      • pixeltree@lemmy.blahaj.zone
        link
        fedilink
        arrow-up
        4
        ·
        5 months ago

        Hmm, might small bodies of water, say pusdle to pond size, still freeze from the top down because of exposure to colder air and above freezing earth? If the top freezes over all at once it might stay on top unless something breaks it and allows water to flow from under to over

      • Almacca@aussie.zone
        link
        fedilink
        English
        arrow-up
        3
        ·
        5 months ago

        Yeah, not good. It’s kind of a weird quirk of nature that water is pretty unique in that it gets less dense when it’s a solid as well.

  • BedInspector@lemmy.world
    link
    fedilink
    arrow-up
    20
    ·
    5 months ago

    Well if water didn’t have its unique properties of cohesion and adhesion we likely wouldn’t be here anyways.

  • Scott_of_the_Arctic@lemmy.world
    link
    fedilink
    arrow-up
    28
    ·
    5 months ago

    It’d evaporate much quicker TBF. Although that also means that the BP would be much lower and tea and coffee wouldn’t be a thing and boiling wouldn’t be a reliable method of cooking. although on the flip side, you could increase the strength of alcoholic beverages by boiling the water off instead of distilling the alcohol.

    • kamen@lemmy.world
      link
      fedilink
      arrow-up
      3
      ·
      5 months ago

      Yep. Generally if one property of it was so different, I’d expect many others to be different as a result of that too. So physics and chemistry as we know them (with so many things relying on water) wouldn’t exist. And thinking further how life on Earth started off in the water…

    • thebestaquaman@lemmy.world
      link
      fedilink
      arrow-up
      39
      ·
      5 months ago

      It relies on differences in surface tension. If a liquid has a lower surface tension (energy) towards one surface than another, you get the typical capillary effect. In the case of water, the water-air energy is lower than the water-<whatever your capillary is made of> energy, so you get a capillary effect.

      If water had exactly zero surface tension against every interface,

      • it would not exhibit any capillary action
      • life on earth would cease to exist quite quickly
      • your socks would remain dry
      • sp3ctr4l@lemmy.dbzer0.com
        link
        fedilink
        English
        arrow-up
        1
        ·
        edit-2
        5 months ago

        life on earth would cease to exist quite quickly

        This was the first thought that came to my mind on seeing this post.

        For starters, basicaly most (all?) land based plants are fucked, they can no longer internally hydrate, also water in soil behaves totally differently, so …yeah.

        (oh on that note, snap your fingers and water has 0 surface tension? time for a lot of landslides/sinkholes in humid areas)

        Then you’ve got beings with active circulatory systems, who… may to some extent be able to live, but lots of pulmonary / circulatory problems are gonna happen.

        I guess maybe totally waterborne life could survive, maybe… but 0 surface tension of water probably changes how salinity works…

        Yeah, this would be very bad, lol.

        • thebestaquaman@lemmy.world
          link
          fedilink
          arrow-up
          2
          ·
          5 months ago

          If we want to go to extremes, zero surface tension means no nucleation barrier for critical bubbles. In practice, this implies that liquid water is unstable, and will spontaneously vaporise at all conditions.

          So yeah, all life ends pretty quickly.

  • LostXOR@fedia.io
    link
    fedilink
    arrow-up
    144
    ·
    5 months ago

    For a liquid to be a liquid, rather than a gas, it needs to be held together by intermolecular forces. Which means it will have some amount of surface tension. I therefore dismiss this hypothetical as physically unrealistic! :P

    • theUwUhugger@lemmy.world
      link
      fedilink
      arrow-up
      5
      ·
      5 months ago

      Aha! But languical constructs allow and do allow hyperboles! So it could be argued that the colleague asked for the minimum allowed by our bindings law!

      I request a motion to dismiss your dismissal :>

    • Derpenheim@lemmy.zip
      link
      fedilink
      arrow-up
      9
      ·
      5 months ago

      Unless its a hydrocarbon product, which can (and does) spread over surfaces it can’t mix with/soak into in single molecules thick sheets.

      • zout@fedia.io
        link
        fedilink
        arrow-up
        11
        ·
        5 months ago

        Superfluid. It can be supercritical, but superfluid is the special thing for helium.

      • LostXOR@fedia.io
        link
        fedilink
        arrow-up
        39
        ·
        5 months ago

        Supercritical fluids are more like a gas than a liquid. Their lack of surface tension means they’ll diffuse throughout whatever container you put them in, so they can’t really be “poured” like a liquid can. They’re actually a pretty good example of why liquids need surface tension to be liquid.

        • _stranger_@lemmy.world
          link
          fedilink
          arrow-up
          24
          ·
          5 months ago

          that’s a pretty good point, it’s literally trapped between being a liquid and a gas. If this was BattleBots, they’d let it compete once and then ban it.

          • thebestaquaman@lemmy.world
            link
            fedilink
            arrow-up
            8
            ·
            5 months ago

            “Trapped between liquid and gas” is kind of the opposite of what a supercritical fluid is. It’s more that gas and liquid states are “trapped” in a region of phase space, while supercritical fluids exist in the place where the demarcation between the two no longer exists (which is usually a far larger region than where it does).

  • MrSulu@lemmy.ml
    link
    fedilink
    English
    arrow-up
    16
    ·
    5 months ago

    We would not have life! Water is a polar molecule that is very different from most other liquids. Its the specific surface tension properties that help to create life. The reason why we search for planets with water. We’ve never worked out a way for any life to exists without the amazing H2O.

    • icelimit@lemmy.ml
      link
      fedilink
      arrow-up
      5
      ·
      5 months ago

      Now imagine what wonders we could have if there were a few other quicky molecules.

      • MrSulu@lemmy.ml
        link
        fedilink
        English
        arrow-up
        1
        ·
        5 months ago

        As an odd thought experiment or are we hoping that the laws of physics might be different there? All water, except brand new in reaction space is almost certainly going to contain dissolved ions

        • Korhaka@sopuli.xyz
          link
          fedilink
          English
          arrow-up
          2
          arrow-down
          1
          ·
          5 months ago

          Well I think the idea is more that for some reason water needs to be treated with something that removes surface tension if you want to safely pipe it to people’s houses. At least that shouldn’t destroy all life.

  • RaivoKulli@sopuli.xyz
    link
    fedilink
    arrow-up
    6
    ·
    5 months ago

    Would that mean that if you jumped into the Atlantic you’d just fall to the bottom? Or would that be due to buoyancy or something