Tech

Sculpture re-creates odd optical effects of famed Lycurgus Cup

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Dating back to around 400 CE and made of dichroic glass, the Lycurgus Cup is notable for exhibiting different colors depending on the light. (It gets its name from the scene depicted on its surface, of King Lycurgus of Thrace.) Light it from the front, and the cup looks green; light it from behind, and the color changes to a deep red. University of Sheffield scientists have re-created the original recipe to produce a contemporary glass sculpture with the same optical effect. The cup is considered one of the seven glass wonders of the world, one of just 40 glass cage cups that survived. Exactly

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