a superhydrophobic surface !
Originally uploaded by Leone Fabre.
The Lotus effect refers to the very high water repellency (superhydrophobicity) exhibited by the leaves of the lotus flower (Nelumbo). Dirt particles are picked up by water droplets due to a complex micro- and nanoscopic architecture of the surface which enables minimization of adhesion.
read more here:
en.wikipedia.org/wiki/Lotus_effect
photo taken in the Botanical Gardens, Mauritius.
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