BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
What animals did the ancient Chinese use for self-defense? Detailed answer Directory / Big encyclopedia. Questions for quiz and self-education Did you know? What animals did the ancient Chinese use for self-defense? In ancient China, Pekingese were used, among other things, for self-defense. Small dogs fit easily in a sleeve. In case of danger, they jumped out and rushed at the offender. Authors: Jimmy Wales, Larry Sanger Random interesting fact from the Great Encyclopedia: Where did the first mirror appear? Have you ever looked into the water of a lake? Did you see the reflection of the trees and the sky there? Essentially you were looking in a mirror. After all, a mirror is a smooth surface that reflects light and other objects. It is very important that its surface is smooth. The smoother it is, the better the reflection. When the breeze ruffles the water, you can only see the sun's reflections - and no other objects. In ancient times, mirrors were made of polished metal. Now the mirror is made of smooth glass with a layer of metal on the back. The glass itself is not yet a mirror: the reflection gives us a narrow layer of silver, and the glass only protects it from scratches and damage. We will never know when a man came up with a mirror. Probably, he also often looked into the smooth surface of the pond and saw himself there. Perhaps, by chance, he learned that the polished metal can also reflect objects. One fine day (we know almost certainly that a woman suggested this idea) a person began to specially polish pieces of metal and give them the desired shape. So there were mirrors. And in the times of ancient Greece, Egypt and Rome, people already widely used mirrors. Even then they had small pocket mirrors that were comfortable to carry around. They were made from a circular plate of metal: copper, bronze, silver and gold. Just as a child is surprised when he sees his own reflection, ancient people were surprised in the same way. They did not know how a reflection is obtained, so they attributed magical powers to mirrors. They thought that what they see in the mirrors is their spirit. Thus arose the superstition that if you break a mirror, it can harm the Spirit. The first who guessed to make glass mirrors with a layer of mercury or tin were the Venetians. By 1300 they were producing such mirrors, and they soon replaced the metal plates. We use them to this day.
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