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Feature: Photo of the Month Archive (71/72)
CAPILLARY ACTION- A MOVEMENT OF WATER
Its Interaction With the Walls of A Thin Tube
Water climbs up a thin glass tube because of the strong hydrogen-bonding interactions between the water and the oxygen at the surface of the glass (SiO2), climbing higher in the smaller diameter tube. Slant of tube doesn't affect height of the column.
Copyright:© 2005 Richard Megna - Fundamental Photographs
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