Chapter 2688: The mystery of the standing Roman city

　　 After a moment, everyone woke up.
　　 Immediately afterwards, the Bishop of Kent said with emotion:
　　 "Steven, you guy is really a monster, a walking encyclopedia, there seems to be nothing in this world that you don't know, there is no treasure that you can't find, it's incredible!"
　　 As soon as his voice fell, Giovanni continued:
　　 "Yes, Steven, especially when it comes to antique art and all kinds of knowledge related to treasures, you guy seems to know everything, which is really scary!"
　　 Hearing these words, everyone on the scene nodded, obviously feeling the same.
　　 Ye Tian smiled softly, jokingly said:
　　"There is an old saying among us Chinese,'If you want to be good at work, you must first sharpen your tools.' To the effect it means that a person who wants to do a thing well must be fully prepared and learn to be successful.
　　 As a professional treasure hunter and an antique art appraisal expert, I must keep learning if I want to get ahead in these two fields, find more treasures, and discover more antique cultural relics and artworks!
　　You may have heard that, whether in Beijing, New York or other places, most of my free time is spent in major museums, and I also read a lot of books.
　　 It is through continuous learning that I have mastered a lot of knowledge of identifying antiques, cultural relics and works of art, and constantly improve my eyesight. It is also through learning that I can discover many treasures! "
　　 While saying this, Ye Tian also muttered to himself in his heart.
　　 "For the remarks just now, for these reasonable excuses, in the past few months, buddies have almost ripped the "History of Rome" and other related history books, and they are almost becoming experts in Roman historiography, buddy!"
After 　　 a few jokes, everyone returned to the topic.
　　"Steven, even as you said, this wine cellar was built between 50 BC and 150 BC. It was built with stone from Palatine Hill. It is a very old underground building!
　　 However, what everyone cares most about is not this underground wine cellar, but the secrets or treasures hidden here. What secrets or treasures have you discovered in this wine cellar? Where is it hidden? "
　　 Giovanni asked curiously, but his eyes were fixed on the two floors in the middle of the cellar.
　　 Everyone on the scene is the same. One is counted as one, and they all stared at the two floors. Everyone's eyes were extremely hot and full of expectations.
　　 Ye Tian looked at Giovanni, then glanced at everyone at the scene, then smiled and said:
　　 "Yes, Giovanni, if it were just this underground wine cellar built in BC, it would not have been so exciting. I did find a hidden secret here, perhaps a huge surprise!
　　 As for whether this secret is an amazing treasure, it is not known for the time being. I believe everyone can see it. The secrets or surprises I call are hidden under these two smooth floors, which need to be excavated."
　　 When he said this, Ye Tian still stretched out his right foot and lightly stepped on the two stone slabs in the center of the wine cellar.
　　 Although this result had been expected a long time ago, everyone was still excited when they heard what Ye Tian said and saw his actions, and the eyes looking at the two floors became even hotter.
　　 The Bishop of Kent and Giovanni came forward together and checked the two floors carefully. They were both very focused. They wished to see through directly, so that they could see what secrets or treasures were hidden under the two floors.
　　 After a while, the bishop of Kent asked suspiciously:
　　 "Steven, we really can't see what is special about these two floors. Compared with the other floors around, they seem to be no different."
　　 Hearing this, Ye Tian immediately took a step forward, pointed to the gap between the two granite floors and said:
　　"The two granite slabs also come from the Palatine Hill not far away. Like the other floors around, this ancient wine cellar has just been built and they are here. They have been here for more than two thousand years!
　　 However, they were moved later. To be precise, they were pryed up and placed here again. It seemed that nothing happened, no flaws!
　　Look at the gap between the two slabs, and then look at the gaps between the other slabs around, and see the difference between the ancient Roman cement used to fill the gaps. This is the mystery.

　　 Following the direction of his fingers, the Bishop of Kent and the others all looked at the gap that was cleared by Ye Tian, ​​everyone was curious!
　　 But, except for the half-professional Giovanni who seemed to see something and thoughtfully, the others were still at a loss!
　　 But it doesn't matter, Ye Tian immediately solved the mystery.
　　 "To put it simply, the materials used to fill the gaps between these stone slabs are ancient Roman cement, but the method of mixing the cement is different. One looks very professional, the other is amateur!
　　The ancient Roman cement that fills the gaps in the other floors is made by professionals. The cement used to mix the cement is all seawater, but the cement between the floors is mixed with fresh water!
　　 We know that ancient Roman cement is composed of volcanic ash and limestone. In ancient Rome, professional construction workers used seawater to mix cement, and only laymen would use fresh water.
　　 Due to the special composition, after the ancient Roman cement was in contact with sea water, the sea water would dissolve some of the components in the volcanic ash, and then slowly form new minerals in these gaps, such as aluminite.
　　 These minerals not only have high strength, but also connect the original building into a stronger whole, and the reaction of ancient Roman cement and seawater takes many years, which is a very time-consuming project.
　　 Because of this, the Roman Pantheon, built in BC, can stand for more than two thousand years without falling, and Rome can become the world's largest ‘open-air history museum’. This is the mystery.
　　 This characteristic of ancient Roman cement determines that only professional construction workers can make reasonable use of it. Ordinary people do not possess such professional knowledge, nor do they have such a long time and patience.
　　 The ancient Roman cement that filled the gaps in this floor was mixed with fresh water, and it was not washed again and again. Compared to the gaps between other floors, it was much looser.
　　In other words, this wine cellar was originally built by professionals and it was very strong. After it was completed, some people did secret construction here, and the construction was very hasty.
　　 I discovered this, and I observed the gaps between other floors, and combined with the situation on the spot, only then did I determine that these floors had been pried up, and it happened in BC!
　　 People who once lived here, why did they bother to pry open these floors? Then he secretly stirred the ancient Roman cement and sealed it up again? This is interesting! "
　　 After Ye Tian's advice, and the comparison with other floor crevices around, after deliberately looking for it, everyone finally saw that the doorway was coming!
　　 "Yes, Steven, the gap between the two floors is indeed different from the gap between the other floors. The remaining gaps seem to be denser, just like what we saw in the Pantheon in Rome.
The gap between the two floors is a bit loose, and the hooks are not very smooth. It doesn't seem to be done by professionals, but more like the homeowner’s hands. What is hidden under these two floors? "
　　 Giovanni said excitedly~EbookFREE.me~ As a half-professional, he has seen more than others.
　　 Ye Tian chuckled softly, then said confidently:
"I want to know what secrets are hidden under these two floors. It's very simple. We will know the answer by prying off the two floors. I have a hunch that this may be a huge surprise, and it may even cause a huge sensation! "
　　 Hearing this, everyone at the scene became even more excited. One by one, they wished they could not immediately start to pry open these two ancient stone slabs to see what secrets are hidden below!
　　 However, Ye Tian, ​​who discovered this secret, was not in a hurry.
　　 Next, he asked the Bishop of Kent and Giovanni to leave the cellar first, and exchanged for the American ambassador to Italy and the curator of the National Museum of Rome who were staying outside to come in, so that those guys could also witness the discovery process.
　　 The reason why he did this, of course, has his own considerations. This is a precaution! In order to prevent the Italian government from playing any insidious tricks afterwards, they would cheat themselves.
　　 Soon, the American ambassador and the curator of the National Museum of Rome and others entered this cellar.
　　 When they got down to the ground and stood still, Ye Tian introduced his findings to these people, but it was a lot simpler and more direct!
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