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Using Non-Newtonian Fluids To Fill Potholes

sciencehabit writes in with a link about a group of students who have come up with an interesting idea about how to fill potholes. "Non-Newtonian fluids are the stars of high school science demonstrations. In one example, an ooey-gooey batter made from corn starch and water oozes like a liquid when moved slowly. But punch it, or run across a giant puddle of it, and it becomes stiff like a solid. Now, a group of college students has figured out a new use for the strange stuff: filler for potholes."

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  1. More Patents by icebike · · Score: 5, Insightful

    The students plan to patent their invention, so they won't divulge their exact formulation,

    Exact formulation isn't necessary for this application, as every 7th grade science class learns it by trial and error with a $1.29 box of corn starch.
    You can do this in your kitchen in 10 minutes, and the stuff is fun to play with but nobody has found a real good application for it in over a
    hundred years.

    The trick in keeping the right proportions of water and starch, something that rain and sun will contrive to disrupt. Burst their bag and you have a big mess.
      If you stop with a tire one of these, such as at a traffic light, you will sink into it, because given constant pressure, it will flow. It only resists changing pressure, or active kneading, not static weights.

    But the beauty here is the rapidity with which these can be thrown down, and they fact that they flow into the pothole, conform to its shape, and thereby resist being ejected by cars.

    P.S. It will be a cold day in hell before you find Police patching potholes.

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