University of Sheffield scientists replicate the colour-changing glass of the Roman Lycurgus Cup
Science & Health

University of Sheffield scientists replicate the colour-changing glass of the Roman Lycurgus Cup

1 hour ago · Originally published 25 Oct 2026 7/10 Original headline: ‘It’s magic’: scientists rediscover how to make ancient Roman colour-changing glass
Researchers have successfully recreated the dichroic glass of the 1,600-year-old Lycurgus Cup, which shifts from jade green to ruby red depending on the light source. By embedding gold and silver nanoparticles into the material, the team has solved a long-standing mystery of ancient optical engineering.
Source: Guardian Science South Yorkshire
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