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The Lycurgus Cup

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2. The Lycurgus Cup: A Surefire Evidence of Roman Nanotechnology
The British Museum (Link 2-a) acquired his 1,600 year old Roman glass cup in 1950. When kept under light, it looks jade-green on one side and blood-from another. This piece of art puzzled scholars for many years, when finally in 1990, they were able to reveal the cause behind this double minded political nature of the cup. While examining the scrapings under the microscope, its glass was found to contain nanoparticles (Link 2-b) of gold and silver. These particles were around 50 nanometers in diameter. Nanoparticles are capable of emitting different colors in different directions, called as dichroic effect. This raised further questions. How the Roman experts were able to achieve

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