Electrohydrodynamic motion of the surface of an insulating liquid in the vicinity of a stressed gap

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Abstract
When a static electric field is applied between two electrodes immersed in a liquid dielectric, the free surface above the electrodes is set in violent motion. This motion does not depend on the polarity of the applied voltage, but appears to be associated with the presence of regions of high-field non-uniformity in the gap. The surface disturbance was recorded by a cine-camera and a number of frames distinctly showing typical movement patterns are given.

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