Droplet of Weak Hydrochloric Acid (IMAGE)

American Institute of Physics

Droplet of Weak Hydrochloric Acid

Caption

A blue glow emanates from beneath a levitating droplet of weak hydrochloric acid. The glow comes from a plasma created when researchers applied above 50 volts of electricity across the droplet.

Credit

Cedric Poulain, et al / CEA

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