Graffiti of the first Christians, the Egyptian tomb and other unique artefacts found on islands hidden from civilization
There are thousands of islands in the world. Many of them have their own rich…

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The Riddle of Easter Island: What Archaeologists Know About Gigantic Scenery
The mystery of Easter Island stirs the minds of historians and enthusiasts over the centuries.…

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Incredible finds of ordinary people.
However, to make a find, it is not necessary to go underground. There are 10…

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The most amazing finds, which turned out to be dinosaurs: From the "little sparrows" to the ancient giants
The theme of dinosaurs is popular at all times. Amazing prehistoric inhabitants of our planet…

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The mystery of the Roman Lycurgus Cup: Nanotechnology in the ancient world?

The British Museum holds a very beautiful ancient exhibit – the Roman Lycurgus Cup. But he is more famous for his unusual optical properties. Under normal lighting, the goblet appears yellowish-green, and in transmitted light it acquires a deep wine-red hue. Only in 1990, scientists were able to reveal the secret of these unique properties, but how could such an effect be achieved in ancient times? After all, these are the real nanotechnologies …
The cup is a so-called diatret – a double-walled bell covered with a figured pattern. Its height is 16.5, and its diameter is 13.2 centimeters.
The earliest found diatrets belong to the 1st century BC. n e., and their heyday reached its production in the III and IV centuries. Diatrets in that era were considered very expensive items and were available only to the rich. Continue reading