Examination of the a 1,600-year-old Roman chalice at the British Museum, known as the Lycurgus Cup reveals ancient Romans were familiar nanotechnology. This extraordinary cup is the only surviving complete example made from dichroic glass, which changes colour when held up to the light. When light is shone through the body of the cup it turns from opaque green to a glowing translucent red. The glass contains tiny amounts of colloidal gold and silver, which give it these unusual optical properties.
Posted on: Sun, 23 Mar 2014 02:18:42 +0000
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