The Floating Water Bridge

J. Phys. D: Appl. Phys. 40 P.6112-61149(2007)

Water undoubtedly is the most important chemical substance in the world.When two beakers (100 mL) set on an even plane, one was fixed,the other movable and controlled by a step motor, and both beakers were separated by 1 mm. The beakers were filled with triply deionized water such that the water surface was about 3mm below the beaker’s edge.Now one electrode was charged with 15 kV, the other was set to ground potential.Since the voltage generators provide a limited current output was stable at 0.5 mA. After a short electric discharge, which was build up between the two water surfaces,a water connection formed spontaneously between the two beakers; the water moved up the glass walls and built a water bridge.