Thermodiffusion in weightlessness

Thermodiffusion, also called the Soret effect, is a mechanism by which an imposed temperature difference establishes a concentration difference within a mixture. Two studies by Belgian scientists from the Free University of Brussels, recently published in European Physical Journal E, provide a better understanding of such effects. They build on recent experimental results from the IVIDIL (Influence Vibration on Diffusion in Liquids) research project performed on the International Space Station under microgravity to avoid motion in the liquids.

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