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Click Below to view Dr. Greenberg's TEDx Talks

TEDx Maui Presentation

Purchase Fine Art Prints of Dr Greenberg's Microscope Photography

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Video of sand grains from around the world, magnfied hundreds of times, as seen through Dr. Greenberg's Edge 3D Microscope

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PO Box 792169 Paia HI 96779

gary@sandgrains.com


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