Watch Sodium and Water Levitate and Collide

Holt-2010National Geographic
Glynn Holt, College of Engineering

Engineers in Switzerland have successfully levitated both a particle of instant coffee and a droplet of water using high frequency sounds to make them collide…

Expert quote:

“The idea is old, but the application is timely. The oil droplets can coalesce and make bigger droplets which you can more easily get out of the water.”

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