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The oobleck experience
 

The oobleck experience

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    The oobleck experience The oobleck experience Presentation Transcript

    •  
      • What to do?
      • What you need?
      • The experiment
      • 20%water 80%corflour
      • We realise a non newtonian fluid
      • Cold temperature
      • Ambient temperature
      • When you hit the oobleck
      • it is solid
      • When you move slowly
      • it is fluid
      • Cornflour is a polymer composed
      • of starch molecules.
      • When the oobleck is solid when the oobleck is liquid
      • Molecules tangle molecules slide against one another
      • Quicksand is a non newtonian fluid
      • It is a dilatant fluid like the oobleck
      • Although sand grains are much larger than molecules of starch, starch molecules are quite large and quicksand may react very much like the oobleck.
    •  
      • If you struggle you solidify sand all around you and you are trapped,
      • so you have to move slowly and you need someone to help you to get away.
      • In every way, as you body is twice less dense than sand you can not drawn yourself , you will float in quicksand.
    •