Chairman Mao's crystal coffin can withstand an eight-magnitude earthquake, and the purity is as high as 99.999%, and no one has copied the second one so far. So how difficult is Chairman Mao's crystal coffin to make, and what is the secret to it?
On September 9, 1976, Chairman Mao, a great leader of a generation, died in Zhongnanhai, Beijing. When the news spread throughout the country with the radio, the first reaction of the people was that they could not believe that the great man who led the people of the whole country to be the masters of their own affairs had actually left us.
When everyone came back to God, both men, women and children were immersed in endless grief. Suddenly, all the Chinese people stood solemnly on the train and honked, and the bright red national flag all slowly landed, and the flag was lowered to half-mast to mourn. The United Nations was also moved to lower its flags at half-mast as a token of condolence.
At this time, all the leaders in Zhongnanhai were urgently dealing with Chairman Mao's posthumous affairs. However, it is difficult to make a mistake on one issue, whether to follow Chairman Mao's last wishes and cremate them, or to permanently protect Chairman Mao's body.
As early as the beginning of the founding of the People's Republic of China, Chairman Mao signed his name on the cremation proposal, that is, he said that he would be cremated after death, and once Chairman Mao quipped: "In the past, I preferred to eat fish, and the ashes I left behind after my death were sprinkled in the Yangtze River to feed the fish." Should we obey the wishes of Chairman Mao and his old family?
But everyone proposed to preserve Chairman Mao's body forever, because he was a symbol of the times and a great leader of a generation. The body is preserved so that future generations can always look at it for commemoration. This is the case with Lenin.
After thorough discussion, the CENTRAL Committee of the Communist Party of China finally decided to let Chairman Mao's body be preserved forever, and also put forward three requirements, one is to do a good job in the anti-embalming of the body, the other is to make a crystal coffin, and finally to build a Chairman Mao memorial hall. Let Chinese people pay homage to the Chairman.
Speaking of which, the antiseptic work of the remains is relatively easy, because the reason why the mainland can have a history of more than 5,000 years shows that the wisdom of the working people in ancient China is great, and it has also left countless wisdom crystals for our descendants.
For example, in 1972, the ancient corpse of mawangdui Han Tomb was found, which had been dead for more than 2,000 years, but her body was not only not decomposed, but also very well protected, and every pattern was preserved at the moment of death. The people of that time were able to do so, and now it is not difficult to preserve Chairman Mao's body.
However, the crystal coffin that stores Chairman Mao's body is not so easy, it must be able to show Chairman Mao's remains, and it is also necessary to protect the remains well. Therefore, he has certain requirements for sealing and thermal insulation. So, how exactly is this crystal coffin made?
In September 1976, the Shanghai Xinhu Glass Factory received a top-secret emergency task. That is to create a fine crystal coffin for Chairman Mao. Although Chairman Mao's death was a heavy blow to the people, the workers actively broke away from their grief and energetically discussed the plan for making a crystal coffin overnight.
At the beginning, everyone was already stuck, because there was no precedent for using a crystal coffin as a place to store the remains, so experts had no book technical methods to learn from. Therefore, the experts have to explore it themselves. Fortunately, in 1925, before the death of the revolutionary Dr. Sun Yat-sen, the Soviet side gave us a crystal coffin to be placed in Xiangshan Park.
This gives the experts a certain amount of experience to learn from. Unfortunately, the gap between the technology of this crystal coffin and their imagination is too large, and they can only give up this crystal coffin to find another way out. Because there was a case of crystal coffins in the Soviet Union at that time, I originally wanted to seek them out to learn from them, but people rejected them with the crystal coffin as the country's top secret information.
This can only be played by yourself. In the end, experts determined that the shape of the crystal coffin should be mainly positive trapezoidal, with a length of 2.4 meters and a width of 1 meter. Because Chairman Mao's stature is already tall, this can leave some space to reflect the solemnity and generosity.
Secondly, the material problem of the crystal coffin should also be the best, there can be no bubbles and no impurities, and the silicon content in it must reach 99.999% purity, which is simply more difficult than ascending to the sky for the technology and workers at that time.
But as long as it is for Chairman Mao, everyone is willing to persist in refining the best crystal. After a variety of experiments, they found that a kind of East China Sea crystal in Jiangsu could meet the requirements.
So the local people began to carry shovels and hoes to contribute to Chairman Mao's crystal coffin. The manufacture of the crystal coffin can finally begin. Time flies and soon ushers in the Spring Festival, but the workers of the new Shanghai glass factory have not rested, and they are still thinking about how to make a satisfactory crystal coffin.
Have you ever seen Chairman Mao's crystal coffin? Not only has the purity reached 99.99%, but it can also resist an eight-magnitude earthquake. After the experts had a new solution, they transposed the raw material from silica to silicon tetrachloride, purified it into 99.99% small quartz glass, and then welded all these small pieces together to become a large crystal plate.
After this step is successful, it must be transported to Beijing by plane to see if it meets the standards. After inspection and acceptance, the quality of their production is completely qualified.
So the workers worked overtime to drive out the remaining crystal plates, and the sacrifices they made were not small, because the melting point of the crystal was more than 1800 ° C, they needed to wear protective masks to complete the welding at the moment of melting, and it was common for work clothes to be burned. But no one cried bitterness.
Finally, in June 1976, six flawless crystal plates were evicted. At present, at the last moment, the crystal coffin needs to be coated to solve the problem of reflection refraction. In this way, Chairman Mao's dignity can be seen to the greatest extent.
All the experts gathered again to discuss, and two options were placed before them, chemical coating and vacuum coating. After careful consideration by all, everyone agreed that with vacuum coating, no machine can be built without machine, and no technology can be learned. With the efforts of thousands of people, a flawless crystal coffin was finally born. At that moment, the efforts of the experts and workers were not in vain, and Chairman Mao's body was placed.
On August 18, 1977, the crystal coffin was transferred to the Chairman Mao Memorial Hall. September 9 is the first anniversary of Chairman Mao's death and the official opening of the Chairman Mao Memorial Hall. Many ordinary people came here on this day to remember Chairman Mao. When they saw Chairman Mao's remains, they still couldn't help but cry with excitement.
Until now, Chairman Mao's crystal coffin is still quietly stored in the memorial hall, and Chairman Mao's greatness has never fallen in the hearts of the people, and he will always live in the hearts of the Chinese people.