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Romans Made Color-Changing Glass With Ancient Nanotechnology. Scientists Just Discovered How to Replicate the 1,600-Year-Old Marvel
Culture & Education
Smithsonian MagazineEN
October 28, 2026

Romans Made Color-Changing Glass With Ancient Nanotechnology. Scientists Just Discovered How to Replicate the 1,600-Year-Old Marvel

Researchers were inspired by Lycurgus Cup, a chalice from the fourth century C.E. that appears opaque green under reflected light but wine red when lit directly. "To me, it’s magic," the lead researcher says

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Curated from Smithsonian Magazine. Classified as Culture & Education by AI, which sometimes makes mistakes.

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