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'Bouncy' cell membranes behave like cornstarch and water, researchers find

Mix two parts cornstarch and one part water. Swirl your fingers in it slowly and the mixture is a smoothly flowing liquid. Punch it quickly with your fist and you meet a rubbery solid -- so solid you can jump up and down on a vat of it. It turns out that cell membranes behave the same way.
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