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Scientists Discover New Technique To Change the Color of Gold Without Using Chemicals
Posted By Mark Boyer On November 4, 2012 @ 2:52 pm In Accessories and Fashion,Design,Green Technology,Innovation | No Comments
Photo by Shutterstock 
Researchers at the University of Southampton  have developed a new way to alter the color of gold—or just about any metal— without chemically altering it. The technique involves “nano-patterning” — etching the metal’s surface with patterns of specific shape and depth, which manipulates the wavelengths that are visible to the human eye. The technique could deliver valuable economic and environmental benefits, and it could be harnessed to manufacture jewelry and to make banknotes and documents more difficult to forge.
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URL to article: http://inhabitat.com/scientists-discover-new-technique-to-change-the-color-of-gold-without-using-chemicals/
URLs in this post:
 Image: http://inhabitat.com/scientists-discover-new-technique-to-change-the-color-of-gold-without-using-chemicals/southampton-university-gold-color-1-537x402/
 Shutterstock: http://www.shutterstock.com/pic-94371739/stock-photo-various-gold-jewellery-on-black-background.html
 University of Southampton: http://www.orc.southampton.ac.uk/midastouch.html
 READ MORE >: http://www.ecouterre.com/u-k-scientists-change-the-color-of-gold-without-chemical-treatments/
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