A 1,600-year-old Roman cup turns green or ruby red depending on how light hits it; after years of experiments, Sheffield researchers have recreated the glass effect using tiny gold and silver particle
A drinking cup made around 1,600 years ago has a remarkable property: it can appear green when light falls on it and ruby red when light shines through it.
Photo credit: The British Museum A drinking cup made around 1,600 years ago has a remarkable property: it can appear green when light falls on it and ruby red when light shines through it. Now, researchers at the University of Sheffield have recreate... [4680 chars]
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- The Times of India
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- Wednesday, 28 October 2026, 11:06 am IST
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