Droplets Levitate on a Cushion of Blue Light
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http://ift.tt/1i0aGfl
Quote:
A Cushion of Vapor from a Jolt of Electricity In their lab, Poulain and his colleagues devised a set-up to run electricity through conductive droplets and film the droplets' behavior at high speed. They suspended a small drop of weak hydrochloric acid, which conducts electricity, above a metal plate and applied a voltage across the drop. When the drop touched the plate, electricity began to flow, and the water in the hydrochloric acid solution started to break down into hydrogen and oxygen gas. Above 50 volts, the bottom of the droplet started sparking. It levitated, rising over the surface of the plate, and a faint blue glow emanated from the gap. |
via International Skeptics Forum http://ift.tt/1Pxh9ZD
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