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Water's Surface Not All Wet

June 8, 2011

image of a bridge over water At any one time, one quarter of the water molecules in the upper-most layer have one hydrogen atom in water and the other vibrating freely above. Such molecules straddle gas and liquid phases, according to a new study in Nature that bears on atmospheric chemistry and raises the question of how exactly to define the air-water boundary. Full Story

University of Southern California

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