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  • Mechanics Behind Toothpaste

    Neda Hashmi

    Neda Hashmi

    @neda-hashmi-0U618x
    Updated: Oct 22, 2024
    Views: 1.4K
    I was brushing my teeth this morning. And while I was applying toothpaste on my brush i observed the motion of paste. It was centrefilled and I wondered how exactly it maintains its shape even after being muddled from between. When i was a kid, i thought toothpaste have pipes inside its body. obviously its not the reason. I remembered one topic that I studied in my 2nd year- BINGHAM PLASTIC nature of certain liquids. Toothpaste was one of the example which was a non-newtonian fluid and comes under the parameter of Bingham Plastic.
    So, my question is, how this motion actually occurs. How the shape of paste inside the body remain intact??article-1081685-024AE38E000005DC-364_233x181
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Replies

  • Sanyam Khurana

    Member • Nov 26, 2013

    I'm also curious to know, if anyone can explain?
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  • Anoop Kumar

    Member • Nov 26, 2013

    Well, Freeze the toothpaste and use Dexter's knife 😨
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  • Neda Hashmi

    Member • Nov 26, 2013

    That was a piece of real curiosity... @#-Link-Snipped-# ..👍
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  • Anoop Kumar

    Member • Nov 26, 2013

    They are non mixable and when to you press from outside it will affect all layers in parallel.
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