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Search Results: Acoustic levitation

The use of intense acoustic waves to hold a body that is immersed in a fluid medium against the force of gravity without obvious mechanical support....


= Encyclopedia Article; = Research Update
Waterdrop acoustically levitated in air between a vibrating surface (below the drop) and a reflecting surface (above the drop). The drop is located slightly below the pressure antinode of a 21-kHz standing wave. The equilibrium shape of the drop is oblate because of the balance between acoustic radiation pressure and capillary stresses.
From Encyclopedia article 'Acoustic levitation'
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