Mechanics Behind Toothpaste

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

Replies

  • Sanyam Khurana
    Sanyam Khurana
    I'm also curious to know, if anyone can explain?
  • Anoop Kumar
    Anoop Kumar
    Well, Freeze the toothpaste and use Dexter's knife 😨
  • Neda Hashmi
    Neda Hashmi
    That was a piece of real curiosity... @#-Link-Snipped-# ..👍
  • Anoop Kumar
    Anoop Kumar
    They are non mixable and when to you press from outside it will affect all layers in parallel.

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