What treasures of the Inca came to our time, and where is the lost "golden" city of Paytiti
The legend of Eldorado, having arisen once, does not cease to inspire the whole world for all sorts of searches, including creative ones. Fascinating books and films are created about…

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Plumbing, civil rights and technology: What the world lost when the Greeks conquered Troy, and the arias - the Dravidians
The legends of dark times in Europe and Asia are full of enthusiasm for the lost civilizations, developed so high that the listeners of these legends could hardly believe. Much…

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10 archaeological discoveries, because of which rewrote the history of ancient Greece
Ancient Greece is undoubtedly one of the most impressive "chapters" in the history of mankind. The complexity and duration of the existence of Greek culture is impressive today, because after…

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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

How did the first coins appear, what was before them, and who printed the first bills
Money - quite an ancient means for calculations. But market relations arose much earlier. For centuries, the ancient people made purchases, exchanged goods without the use of coins, banknotes and…

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What treasures of the Inca came to our time, and where is the lost "golden" city of Paytiti
The legend of Eldorado, having arisen once, does not cease to inspire the whole world for all sorts of searches, including creative ones. Fascinating books and films are created about…

...

Obelisk of the city of Aswan
Granite quarries, located along the banks of the Nile in the city of Aswan (Aswan), supplied some of the highest quality stones for the construction of temples, sculptures and monuments…

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