Imagine a 21st century physicist who has gone back in time.

Machine-assisted translation. The original Russian publication is linked below.

Imagine a 21st century physicist who has gone back in time. For example, he came in the time of the Hellenic, in the Roman Republic, in the Middle Ages of Europe, in ancient China during the time of Confucius, in India during the time of Sidhartha, in South America during the heyday of the Inca civilization, as well as to the…