One: A Ring of Endless Light will never go out.
According to common sense, ancient tombs should be invisible all year round, but some ancient tombs have "ever-burning lamps" hanging on their vaults, and the shade is very threatening and creepy. Why can such a magical lamp exist for thousands of years? Why does oxygen still burn?
Where does the energy come from? If the oil lamp has been used for thousands of years, how can the fuel be supplied? Obviously, it was not done by manpower; If it is an electric lamp, the liquid in the lamp bowl may be mercury used to conduct electricity. The problem is how to generate electricity.
What is the truth? It is still a big problem in the field of science, and it is still inconclusive and needs scientific verification.
Two: What's the significance of the tablet without words?
It has been a practice since ancient times, but Wu Zetian is an exception! Why did Wu Zetian set up a tablet without words?
One theory is that Wu Zetian, in order to boast of herself, showed that her merits could not be expressed in words; One argument is that Wu Zetian knew that she was smart, and "right and wrong" was left to later generations to comment.
Another way of saying it is that Wu Zetian is in a dilemma. When she thought of being buried with Emperor Gaozong after her death, no matter whether she claimed to be the emperor or the queen, it was difficult to put pen to paper, so she was simply "nameless" and let future generations draw a conclusion.
Not so much writing as not writing, which became an interesting conversation.
Three: The Millennium Stainless Mystery of Bronze Sword
As the "eighth wonder of the world", the Terracotta Warriors and Horses of Qin Shihuang are one of the greatest archaeological discoveries in the 20th century! Along with the Terracotta Warriors, a number of bronze swords were unearthed. The body of the sword is bright and clean, and the blade of the sword is very fine. After sleeping in the ground for more than 2000 years, it is as bright as new and extremely sharp.
When excavating the tombs in the Spring and Autumn Period, the archaeological team accidentally found a sword of Gou Jian, the king of Yue, which was fine in workmanship and cut iron like mud. These two archaeological discoveries immediately spread all over the country, and even greater miracles are yet to come. Tested by researchers, the front of the sword is covered with a layer of chromium salt compound. This discovery caused a sensation in the world, because this chromium salt oxidation treatment method is an advanced modern technology. Germany invented and applied for a patent in 1937, and the United States in 1950.
Chromium is a rare metal with a melting point as high as 4000 degrees Celsius, which is extremely difficult to extract. Modern scientific inventions actually appeared more than 200 years ago BC?
Layers of mystery, right and wrong, can only become the mystery of the ages.