In ancient times, China experienced a feudal society that lasted for more than two thousand years, and the emperor was respected by everyone in the whole world, and the class system was very strict. As the peak of the power system, the emperor has his own unique high standards and high requirements for food, clothing, shelter and transportation, and does not allow anyone to be at the same level as the emperor.
Under this system, the residence of the emperor was naturally extremely luxurious. The Forbidden City in Beijing is one of the buildings that symbolize the status of the imperial family, from the huge solemnity of this palace complex, you can glimpse a glimpse of the luxurious life of the emperor in ancient times, which has dozens of palaces inside, and the rooms are innumerable, one of which is called the Yangxin Hall, which is the residence where the emperor handles the music on weekdays and rests a little, which should be very prosperous. However, when the maintenance personnel of the Forbidden City came to the Yangxin Hall, they were frightened not lightly, why was this?
Located on the west side of the Qianqing Palace, although the area is not large, the furniture inside is readily available, and it looks very warm. In recent years, the Forbidden City has been open to the outside world, and it is inevitable that some palaces will be accidentally damaged by tourists in this process, so there are a group of people in the Forbidden City who are responsible for its maintenance to ensure the integrity of the major palaces in the Forbidden City.
But only the Yangxin Hall is different, whether it is a cold winter day or a hot summer day, every time you walk in, you feel very cold. Why is the Forbidden City Yangxin Hall damp and cold all year round? It always became a mystery in their hearts.
Later, after the matter was learned by the higher authorities, a well-known local architectural expert was immediately consulted to investigate. After the experts came to the scene, after sophisticated instrument exploration, they found that the coldest under the floor was most likely the source of the cold in the temple. After lifting the floor, the expert was frightened by the sight in front of him. It turns out that under the floor is not loess, but a large number of pipelines, the inside of which still preserves a large amount of groundwater, which continues to emit water vapor through evaporation, which makes the interior of the palace very cold.
Later, experts deduced according to relevant data that this is likely to be a heating device made by the ancients, these pipes are laid under the floor, which can be heated in winter, and can also reduce the room temperature in summer, which can play a role in warming in winter and cooling in summer. But no one has handled these pipes over the years, and a large amount of groundwater has been hoarded inside the pipes, which has led to the cold inside the palace.