Download A Grain of Sand: Nature's Secret Wonder by Gary Greenberg PDF

By Gary Greenberg

This is the realm considered inside a grain of sand, due to the lovely third-dimensional microphotography of Dr. Gary Greenberg. to a few, all sand appears alike--countless grains in an unlimited expanse of seashore. glance closer--much closer--and your view of sand isn't an analogous. using the wonderful microphotographic suggestions that he built, Greenberg invitations readers to find the unusual and lovely international that every grain of sand comprises.

Here are the sands of Hawaii and Tahiti, the Sahara and the Poles, a volcano, every one exquisitely varied, and every telling a desirable geological tale. crimson sand and yellow, white sand and black, making a song sand and quicksand: Greenbergs images show the delicate variations of their colours, textures, sizes, and shapes. And as this infinitesimal global unfolds so does an exciting clarification of the way each one grain of sand starts off and kinds and unearths itself in a specific position, one in all a thousand million and specific.

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Extra resources for A Grain of Sand: Nature's Secret Wonder

Sample text

Here is a firsthand account from a person who experienced singing sands in western Egypt: On two occasions it happened on a still night, suddenly there was a vibrant booming so loud that I had to shout to be heard by my companion. Soon other sources, set going by the disturbance, joined their music to the first, with so close a note that a slow beat was clearly recognized. This weird chorus went on for more than five minutes continuously before silence returned and the ground ceased to tremble.

Used one oblique light from the left and another oblique light from the right, it would be possible to produce a left-eye and right-eye view of the sample simultaneously, which would result in a dramatic 3-D image. In other words, both eyes would receive a 2-D image but from a slightly different angle; the human brain then creates the third dimension. With the help of my mentor and The Edge 3D Microscope was used to create the images in this book. 29 good friend Professor Alan Boyde at University College London, I built a working prototype in 1990, and, to our delight, it performed well enough for us to proceed with further development.

The individual photographs are then brought together in one large, seamless image using Photoshop. In an alternative method, I take a single photograph of each individual grain of sand and then later 32 arrange the sand grains electronically using Photoshop, rather than physically manipulating each grain of sand on the microscope slide. The individual sand grains are photographed on a black background in order to cut-and-paste without making them look as though they've been artificially extracted.

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