Riddle of Alexander of Macedon: Why "the flight of Tsar Alexander" was popular in Russia and throughout the Christian world
A unique pectoral cross was found on the land of the former Drutsk faction, which emerged in the 11th century on the way "from the Varangians to the Greeks". Crosses…

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A spiral of skeletons, a bound woman and other ancient tombs that seem strange
It so happened in history that after the death of a man he expected a funeral rite. How exactly to bury a person - in a stone tomb, a wooden…

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Mysterious prehistoric objects
In the world there are hundreds of mysterious places and objects, which scientists are trying to unravel the secret of more than a dozen years. Stone circles, plates, deities, temples…

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unusual optical properties

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

Who was the legendary Troyan from "The Tale of Igor's Campaign": A long way to the East and back to the West
The story that will be discussed on these pages began with a find of an unusual item on the territory of Ukraine. It was a figure of a person sitting…

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From where in Egypt pyramids?
The pyramids disturb the minds and hearts of many people - from serious scientists who have devoted their whole lives to the study of mysterious structures, to lovers of conspiracy,…

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Russia's oldest idol turned out to be older than the Black Sea
The wooden figure found the Mesolithic - the middle stone age and was the oldest of the large surviving sculptures of mankind. An international group of researchers with the participation…

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