• BedInspector@lemmy.world
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    1 hour ago

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

    • dejected_warp_core@lemmy.world
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      42 minutes 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.

    • thebestaquaman@lemmy.world
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      4 hours 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
  • JaymesRS@piefed.world
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    4 hours ago

    This reminds me of the person that suggested in a response to a request for ADHD “life-hacks” where they would wet one of their socks before starting a specific high-importance task and could not take it off until the specified task was completed.

  • yucandu@lemmy.world
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    5 hours ago

    That’s how gasoline spills (on water) work. They cover the water about one molecule thick.

  • ramenshaman@lemmy.world
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    5 hours ago

    That would actually be a very useful tool for machinists. I think it would make it much easier to find out how non-flat something it

  • LostXOR@fedia.io
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    8 hours 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

    • Derpenheim@lemmy.zip
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      5 hours 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.

      • LostXOR@fedia.io
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        7 hours 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
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          7 hours 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
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            4 hours 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).

      • zout@fedia.io
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        6 hours ago

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

    • theUwUhugger@lemmy.world
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      7 hours 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 :>

    • Signtist@bookwyr.me
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      8 hours ago

      Yeah, I’ll often spread spilled water across the table just so that it evaporates within a couple minutes.

  • don@lemmy.ca
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    7 hours ago

    At 2 micrometers, it’s going to evaporate too fast for there to be a puddle thin film of water.

  • Eager Eagle@lemmy.world
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    8 hours ago

    I think that’s part of our anthropic bias, not sure we’d be alive without water’s surface tension in order to observe this.

    • theUwUhugger@lemmy.world
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      7 hours ago

      Well cells wouldn’t be circle shaped, but would it actually be to the detriment of life in that or other ways?

      Maybe cells could take a more pragmatic shape, like tactical dicks