The ancient Romans were able to do what scientists were able to repeat only 1600 years later

Scientists from the University of Sheffield in the UK managed to recreate a unique glass, the secret of the manufacture of which was known to the masters of ancient Rome about 1600 years ago. This is an unusual material that can change color depending on the lighting. The discovery is reported by The Guardian.

The model for the researchers was the famous Lycurgus Cup, made in the IV century and stored in the British Museum. In normal lighting, the ancient vessel looks green, but it is necessary to direct light through its walls, as the glass becomes saturated red. This effect is due to the smallest particles of gold and silver, which interact in a special way with light.

The ancient technology was restored by glass specialist Lisa Hollands. Together with colleagues, she conducted many experiments, changing the composition of materials, temperature and conditions of firing. It turned out that even the location of the product inside the furnace affects its shade. As a result, researchers have found a way to consistently obtain the desired colors, using substances available to Roman artisans.

According to scientists, ancient glassblowers could achieve an amazing result due to the successful combination of materials and production conditions. A modern version of glass has already been used to create art sculpture. In addition, the reconstituted technology can be useful in the development of new optical materials and improving methods for the safe storage of radioactive waste.

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