During the period of China's ancient feudal society, people's thinking was relatively closed, and some unexplainable phenomena were explained by ghosts and gods. Over time, the ancients were very taboo about disrespecting ghosts and gods. Therefore, they are convinced of the world after death, especially many kings, who like to use all kinds of jewelry and antiques as funerary objects; and even build their own mausoleums very brilliantly, in order to hope that they can still enjoy the glory and wealth of their lives after death.

For example, the Mausoleum of the First Qin Emperor is the most outstanding representative. The Terracotta Warriors and Horses are just a funerary pit for Qin Shi Huang, and their scale has already amazed the world. And the most core part of the mausoleum must contain more precious secrets. However, for the excavation of the Mausoleum of Qin Shi Huang, experts have always been far away. After all, it has been confirmed to contain a large amount of mercury, and once the artifacts are excavated and oxidized, it is very possible to recover. But in addition to these two points, there is another reason.
The claim that there is mercury in the mausoleum of Qin Shi Huang was determined by experts from historical records and field surveys. The first record in the history books is that the craftsmen built a huge underground palace for the mausoleum of Qin Shi Huang, which contained all kinds of items, and even simulated rivers and lakes with mercury. It was as if it were a world specially created for the sleeping Qin Shi Huang. After environmental monitoring near the Mausoleum of The First Qin Shi Huang, the numerical value of a large number of mercury elements proved the danger of the Mausoleum of the First Qin Emperor.
Regarding the oxidation of cultural relics, it is actually a tragedy that occurred on the terracotta warriors. It is said that when the terracotta warriors were originally unearthed, they were actually painted with exquisite paints, which made the terracotta warriors, which were already vivid and majestic, look a bit like a real person. Unfortunately, as soon as they came into contact with the air on the ground, the pigment on their bodies disappeared due to oxidation. No matter how much experts fix it, they can no longer restore the original color. This is actually a loss for us.
As the mystery of the Mausoleum of the First Emperor of Qin grew thicker and thicker, many foreign scholars also came to visit. Once, German experts used an instrument that could be scanned by nuclear magnetics and found that there were obvious fluctuations in the value of the thermal anomaly in the mausoleum of Qin Shi Huang. That is to say, there is actually some kind of mechanism underground that keeps certain items in the tomb running all the time. Although I don't know exactly what is running, if it can be detected, it must be a huge thing. There are significant risk factors for this.
Because of this discovery, many people say that it is a perpetual motion machine. But perpetual motion machines have long been confirmed to be non-existent, and it can only be said that the scientific development of the Qin Dynasty period is far more advanced than we think.
However, our scientists have always believed that even if the Mausoleum of the First Emperor of Qin is not opened, the mystery of it will slowly emerge in front of people's eyes. After all, our Chinese culture has been passed down for thousands of years, and there will be more precious historical records that will appear in the world with the passage of time.