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Soft matter and liquids

Soft matter and liquids

Einstein’s tea leaf paradox could help make aerogels

11 Oct 2023 Isabelle Dumé
Photo showing a white plastic stirrer agitating amber-brown liquid in a metal container
That isn't tea, but the paradox still applies: Dispersing gold nanoparticles in an aqueous chlorine solution. (Courtesy: Ai Du)
If you stir a colloidal solution containing nanoparticles, you might expect the particles to dispers

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Isabelle Dumé is a contributing editor to Physics World
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