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The Floating Water Bridge
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[link to www.physorg.com]
While it's one of the most important and abundant chemical compounds on Earth, water is still a puzzle to scientists. Much research has been done to uncover the structure of water beyond the H2O scale, which is thought to be responsible for many of water’s unique properties. However, the nature of this structure, governed by hydrogen bonds, is currently unknown. “Water undoubtedly is the most important chemical substance in the world,” explained Elmar Fuchs and colleagues from the Graz University of Technology in Austria in a recent study. “The interaction of water with electric fields has been intensely explored over the last years. We report another unusual effect of liquid water exposed to a dc electric field: the floating water bridge.” When exposed to a high-voltage electric field, water in two beakers climbs out of the beakers and crosses empty space to meet, forming the water bridge. The liquid bridge, hovering in space, appears to the human eye to defy gravity.
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