Researchers from Vanderbilt University in Nashville, Tennessee have created the world's smallest continuous spirals. Made from gold, the spirals exhibit a set of very specific optical properties that would be difficult to fake, making them ideal for use in identity cards or other items where authenticity is paramount.
.. Continue Reading "Nano-spirals" could make counterfeiting almost impossibleSection: Science
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from Gizmag Emerging Technology Magazine http://ift.tt/1FBLyQf
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