1843, the Russian tsar once plundered some sphinxes from Egypt and put them in the palace to entertain himself.
100 years have passed, and our place of occurrence will be transferred from the pyramids and the Tsar's Palace in Egypt to the Leningrad Museum in the former Soviet Union.
The hero of this story is not the Pharaoh Kefron of the fourth dynasty in ancient Egypt, nor the czar of Russia, but an old archaeologist in the former Soviet Union.
One day, the old scholar came to Leningrad Museum and stopped in front of a stone statue of the Sphinx. After careful observation, he was surprised and said, "I didn't expect the Sphinx to lose weight."
The librarian of a nearby museum listened to the old scholar and asked with a smile, "You said it was' thin'. Is there any basis? "
The old scholar said: "I once read the archives of the Sphinx, which clearly stated its length, waist circumference and neck thickness, but now it seems that it has lost a lot of weight."
The administrator said, "Yes, we found that layers of powder often appeared on the ground around the stone statue. What's worse, there were some tiny grains of sand in the powder. What is the reason? "
The old scholar said, "If we compare the climate of Egypt with ours, we can understand why it is' thin'. The air here is wetter than in Egypt. Humid air contains a lot of water. Water attacks the stone statue together with oxygen and sulfuric acid gas, dissolving some substances in it and causing other substances to react chemically. In this way, the structure of the stone statue has become more and more loose. "
The old scholar only touched the Sphinx lightly and got a big piece of powder on his finger. Pointing to the stone statue, he continued: "There are countless cracks in the stone statue. Our winter in Leningrad is much colder than that in Egypt. In such cold weather, the water in the cracks in the stone statues has frozen into countless water ice slag.
When water freezes into ice, its volume will increase by one tenth, so I try my best to stretch out. This pulling force is huge, it can make a large area of fingers bear 5000 kilograms of force, expand the cracks in the stone statue, so there will be powder falling down. "
The administrator said happily, "It seems that you have touched the root of the thin silk of the stone statue. Please write another prescription." "
The old scholar said, "Please coat the stone statue with grease and plug all the gaps, so that air and water can't attack it any more."
The administrator reported the old scholar's words to the curator and treated the neck of the stone statue according to this "prescription".
After that, the Sphinx never lost weight again.
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Weight loss stone statue