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Summary
DescriptionBénard cells convection.ogv
English: Gold paint dissolved in acetone. Put it in a shallow dish. Cover it so that the acetone does not evaporate. Let stabilise and then remove the cover. Evaporation of the acetone causes the top layer to cool thus starting convection.
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{{Information |Description={{en|1=Gold paint dissolved in aceton. Put it in a shallow dish. Cover it so that the aceton does not evaporates. Let stabilise and then remove the cover. Evaporation of the aceton causes the top layer to cool thus starting conv