We Know Simple Fluids Can Flow. Turns Out, Some Can Fracture

(quantamagazine.org)

55 points | by Anon84 3 hours ago ago

12 comments

  • nelox 16 minutes ago

    Turns out glass has been known to be a fluid and to fracture for quite some time.

    [edit: but glass is not a simple fluid.]

    • helltone 7 minutes ago

      I thought glass was a solid?

      • vlovich123 5 minutes ago

        Nope, lots of fluids that just flow over such a long period they appear solid.

  • dd8601fn an hour ago

    This looks like silly putty behavior.

    • jdlshore 42 minutes ago

      Oobleck (corn starch and water) will do this too. But presumably they already knew that. The article describes it as being known to happen in “complex fluids,” but that it was news that it happens in “simple fluids.” Presumably silly putty and oobleck are “complex fluids?”

  • nycdweller349 2 hours ago

    Someone tell me the industries that are going to benefit the most from this in the short and long term and what I can expect to see in the next 30 years as a result of this discovery.

    • JumpCrisscross 11 minutes ago

      It’s a new, generalizable material-science property at STP. Those almost always find practical uses.

      (Off the top of my head, a material that dissipates tension below a certain rate but fails when it is applied faster than that rate seems to resemble a mechanical breaker. As in not an electrical breaker that works mechanically. But one that decouples when you pull on it super hard. Being able to do that in fluids means one can potentially do that at very tiny scales.

      More broadly, if simple fluids have a quasi-elastic mode, that has fundamental implications for hydrodynamics. I'd be super curious to know, for example, if anything similar to this occurs in air or water.)

    • helpfulclippy 2 hours ago

      That sounds like a lot of work for someone to go do for a quanta article about something neat a researcher noticed.

      • calrt 2 hours ago

        I worry that this sort of request will become the norm in the age of AI where people forget that people aren’t there to serve them.

    • gmueckl an hour ago

      Maybe it will not have any mmediate application. But guess what? It's still cool! And that can be its very own reward if you let it.

      Oh, btw: electricity was a novelty toy for several long decades with no major practical applications. But that eventually changed because people kept researching it. And it changed the world.

    • lostlogin 2 hours ago

      You made an account to say that?

      • lstodd an hour ago

        he had his llm to make an account to post this.