China is a country with a very long history, and in the long course of thousands of years of history, there have been many capable people and strangers in China, and more are actually the wisdom that the Chinese ancients have constantly summed up. Many times, as archaeologists continue to dig and discover, the more modern people are surprised by the wisdom of the ancients.
There is a French guy who is very interested in China's ancient culture, because he thinks that China's history is very attractive, and China's ancient craftsmen are very intelligent. After visiting a museum in China, he said that the Chinese ancients were so wise that they invented the refrigerator more than 2,000 years ago.
Many people may be very confused when they hear this sentence, because we all know that refrigerators are products invented by modern people, although the level of craftsmen in ancient China is very high, but it is indeed a bit strange to say that they can invent refrigerators. But in fact, this French guy is indeed not wrong at this point, because China did have a "refrigerator" that did not have electricity in ancient times.
This kind of refrigerator was actually originally called Bingjian, which was found in the tomb of Marquis Yi of Zeng during the Warring States period in China. For the tomb of Zeng Houyi, many people may only know the zenghou yi chimes, but in fact, there are many magical things found in the tomb of zenghou yi, and this bronze ice book is one of the more special cultural relics.
The structure of Bingjian is a double-layer structure, the outer layer is called Fangjian, and the inside of Fangjian is called Miao. The principle of ice book is to put ice cubes in the square book, and then put wine and other things in the silk, so that it can play an effect of freezing the items in the ice book, and the ice book in ancient times was the most needed thing for the nobles in the summer.
Many people may wonder where the ice cubes in ancient times came from, in fact, there have always been special ice storage places in ancient times, and since the Zhou Dynasty, there has been an "ice government" dedicated to managing ice cubes. Every Year in December, ice is transported from the north to the capital to be stored, and from these things, it can be seen that the ancient Chinese showed unexpected wisdom in life.