Water drop on Salvinia sp. trichomes

Water drop on Salvinia sp. trichomes

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Credit: FRANK FOX/SCIENCE PHOTO LIBRARY

Caption: Macrophotograph of a water droplet resting on trichomes (hairs) on the surface of a leaf from a watermoss (Salvinia sp.) plant. Watermoss is a floating aquatic plant. These super-hydrophobic hairs trap a layer of air and repel water (the Salvinia effect), allowing the plant to float and preventing it from becoming water-logged and sinking. Any water landing on the upper surface of the leaf beads up and rolls off (shown here). Salvinia-surfaces are used as drag reducing coatings on ships to make them more buoyant, therefore reducing energy consumption and emissions. Magnification: x40, when printed 10cm wide.

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Keywords: anatomical, anatomy, aquatic, bead, beading, biological, biology, biomimetics, bionics, black background, botanical, botany, close-up, detail, droplet, floating fern, hair, hairs, hairy, hydrophobic, macro photograph, macro photography, macrophotograph, macrophotography, nature, no-one, nobody, physical, physics, plant, plants, salvinia effect, salvinia sp., structure, structures, trichome, trichomes, water drop, watermoss, wildlife

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