Sand Ripples

Image source: http://natuurfotografie.nl/natuurfotograaf-ronald-van-wijk-in-beeld/

Made by: Wind and water flows

Materials: Sand

Fabrication process:

When a wind or water flows across sand, the sand is dragged along the bottom and often is piled up to form ripples

“Ripples in sand, found on both beaches and dunes, are one of nature’s most ubiquitous and spectacular examples of self-organization. They do not result from some predetermined pattern in the wind that is somehow impressed on the surface, but rather from the dynamics of individual grains in motion across the surface.”

(Daniel M. Hanes in the department of coastal and oceanographic engineering at the University of Florida, Gainesville)

It facinates me that the strong power from wind and water can establish such a small size, beautifull and playful pattern.

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