There is a long-standing folklore in China. In the tombs of some tomb owners, there is often an ever-burning lamp that cannot be extinguished for a long time. Even if the oxygen in the tomb is exhausted, the ever-burning lamp can continue to burn until now, and some even last for thousands of years. We can usually see this magical thing in some tomb-robbing novels or fairy tales, but it is not clear whether it is true in reality.
The most famous ever-burning lamp in China belongs to Qin Shihuang. According to historical records, Qin Shihuang's tomb is made of shark paste, and sharks are the so-called mermaids. The ever-burning lamp made of shark cream can be lit for a long time without going out. It is also said that this ointment has a low ignition point, and it can burn for a long time with only one drop, and it will not go out for several months. Not only Qin Shihuang used this ointment, but also ancient nobles used it.
There is an ever-burning lamp not only in China, but also in other countries. Like some countries with a long history, there are ever-burning lamps, such as ancient India and ancient Egypt. And there are ever-burning lamps in these countries. Because they have a belief in these countries that even the dead need lights to illuminate their roads, people will light an ever-burning lamp in their graves to provide them with illumination. And even if you re-enter the tomb after one thousand years, the lights inside are still on.
After decades of research, Simon has solved the secret of the ever-burning lamp. He found that the ever-burning lamp wouldn't actually go on forever. When the oxygen in the tomb disappears, it goes out. When people open the tomb, they bring in new oxygen and ignite the white phosphorus on the surface of the wick of the ever-burning lamp, so the ever-burning lamp can last forever.