Jul 16, 2011-- When you take a moonlit stroll on the beach, how often do you think about the tiny grains of sand creeping in between your toes? From above, sand seems like a bunch of tiny brown rocks, perhaps peppered with occasional shells or beach miscellany. But sand has a far more fascinating story to tell. Composed of the remnants of volcanic explosions, eroded mountains, dead organisms, and even degraded man-made structures, sand can reveal the history -- both biological and geologic -- of a local environment. And examined closely enough, as the scientist and artist Gary Greenberg has, sand can reveal spectacular colors, shapes, and textures. Greenberg used an Edge 3D Microscope to take pictures of sand from around the world, creating these incredible images. (8915 reads)