Professor Qin was puzzled, but when he unwrapped the tarpaulin, he became even more surprised. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

It was a glittering sword with a shiny body, the color was not the silver-gray of the iron sword, but the cyan color similar to the bronze sword, but the luster on it was very different from the luster of the bronze sword.

"Where did you get this sword?"

Professor Qin placed the sword on a platform covered with white cloth, turned on the lights on all sides, then put on his reading glasses and began to observe in detail, asking Liu Zhi a question while observing.

"It's a sword from a friend's house, it's said to have been there for many years, and I don't know where the specific source is!"

The relationship between Liu Zhi and Professor Qin was very familiar, so he couldn't say that this sword was his own, otherwise Professor Qin would take him away, so he told a lie and dealt with it.

Professor Qin let out an 'um' and didn't look back.

"The materials in this sword are more miscellaneous, mixed with metal tungsten and metal chromium, in addition to the use of 100 steel, very strange, the current smelting technology can already be very proficient in controlling the carbon content in the steel, why use this forging technology to make steel? Doesn't that reduce your own efficiency? ”

Professor Qin shook his head, as if he was a little puzzled by the intentions of the person who forged this sword.

Liu Zhi was shocked after hearing this, tungsten is a metal known for its high hardness and high strength, and he didn't expect that the people who cast swords in the Han Dynasty would actually know how to use this metal to make alloys, and he was also very curious, tungsten is so strong, how did they melt it and cast it when they forged it?

"This sword looks like it has just been forged not long ago, and the inscription on the hilt is still freshly engraved, so it certainly won't be ······ Hey? This sword is called the Green Sword? ”

Professor Qin was taken aback, Qing Yu Sword! Could this be Cao Cao's sword in history that is as famous as the Heavenly Sword? Is it the sword that was taken away by Zhao Yun from Xia Houen's hands in the Battle of Changbanpo?

However, he immediately shook his head, because he found that the three characters of 'Qingyu Sword' used the small seal font, and the small seal font was only used in the early Western Han Dynasty, and Cao Cao made people forge the Qingyu Sword and the Yitian Sword, but it was at the end of the Eastern Han Dynasty, but the font used at this time was Lishu, and the difference between the two characters was very large.

Small seal, also called Qin seal, is a kind of hieroglyphs, its strokes are complex, the form is ancient, and can be added at will, so it is almost impossible for different people to imitate the text written with a small seal, so it is also used for anti-counterfeiting official seals, after the Han Dynasty, many calligraphy and painting masterpieces, there will be a lot of large and small seals, and the font on it is the use of small seals.

The official script is simplified on the basis of the small seal, and its shape is not much different from the Chinese characters used now, so Professor Qin can see at a glance that the words on this sword are not the same age.

"This sword shouldn't be a Qingyu sword, the Qingyu sword has a history of at least 1,800 years, and this sword still looks very new, the forging time is no more than two years, it should be a fake, but this retro forging technology is very good!"

Professor Qin shook his head, wrapped the sword in oilcloth again, and handed it back to Liu Zhi.

"The age of the sword should have been forged a few years ago, but I can only give a rough idea of the specific composition, and these things need to be further sampled and analyzed before we can know."

Liu Zhi nodded, didn't ask any more questions, and after saying goodbye to Professor Qin, he left the museum and returned home.

After Liu Zhi entered the door, he found that his father had returned home at some point, but his mother was nowhere to be found, probably to buy vegetables.

"Dad, when did you come back, why don't you play more chess with Uncle Wang downstairs?"

Liu Zhi saw his father's sharp eyes staring directly at him, as if he had seen through his little secrets, so he opened his mouth to distract Father Liu's attention.

"Xiaozhi, have you used that compass?"

Liu Zhi sighed in his heart, was he discovered?

Seeing his father's sharp eyes, Liu Zhi didn't know how he found out, but he didn't deny it, nodded and admitted the matter.

"Sure enough!"

Father Liu sighed and said to him: "Come on, sit down first, it seems that some things still have to be made clear to you!" ”

Liu Zhi didn't know what he was going to say, but seeing his solemn face, he sat down on the sofa according to his words.

"Since you have already used this compass and come back safe and sound, then this means that you will use it, and I don't need to teach you how to use it!"

Liu Zhi nodded, he has indeed completely mastered the use of the compass now, but listening to his father's statement, can he also use the compass, and even travel through time and space?

"Dad, you won't ······"

"Yes, I've used it too!"

Father Liu quickly verified the conjecture in Liu Zhi's heart, and he really used the compass.

"Then you have traveled through those dynasties back then? What did you do? ”

Liu Zhi asked impatiently, he was indeed very curious about Liu's father's experience back then.

Liu's father fell into deep memories, and his face flashed with joy, sweetness and happiness from time to time, Liu Zhi secretly thought in his heart: "Eighty percent of his father and his old man still have a lot of romantic debts in the other world, otherwise the expression on his face would not be like this, alas, I am really too young, this has traveled back to the Three Kingdoms, why not find one or two beauties to spend a few days of leisure?" During the Three Kingdoms period, there were beautiful women like clouds, what Diao Chan, Da Qiao Xiao Qiao, Sun Shangxiang, Zhen Ji, etc., etc., etc., there are countless of them! It's a pity! ”

"I have been to many dynasties, Han Wu Qiang Han, Zhenguan Shengtang, prosperous Bianjing, Yanyun Jinling, troubled times, etc., except for the Ming Dynasty and the Qing Dynasty, I have basically been there!"

When Father Liu said these words, the expression on his face seemed very calm, but Liu Zhi knew that his heart must not be at peace, because these experiences could not be shared with ordinary people, so he could only hold them in his own heart and guard these secrets alone.

Liu Zhi thought about it, this compass seemed to be handed over to him by his father on his tenth birthday, which means that the last time his father used the compass to travel was at least thirteen years ago!

"Dad, those articles of yours were all written after researching from the time-traveling, right?"

Liu's father is a historical researcher, he published a lot of highly professional articles more than ten years ago, and he has a great reputation throughout the country, and many TV dramas, especially costume dramas, will come to him when filming, because his research is very different from the research of other historians, not only meticulous, but also able to come up with real objects for comparison.