"Tell me, what are the things you taught about investigating things and hunting? What happened?" When Yang Heng, Yu Zhang and others met Li Er, before Yang Heng and others could salute and greet him, Li Er was anxious first.

"What's going on?" Yang Heng didn't react at once. Li Er was so anxious. Is it necessary? "Isn't it just that I found that the craftsmen and old farmers were too stupid, so I just gave them some knowledge of studying things, or even about the changes of things. Isn't that much?"

"It's nothing, this is what you heard from the scholar who is not a scholar? Do you think I am a fool!" Yes, is it necessary? Isn't it just some knowledge of physics and chemistry? It's not that you are hiding something behind your back? You're too fussy. Fortunately, Yang Heng is still prepared.

"Oh, Your Majesty is talking about this. I don't know if Your Majesty has read the Mo Sutra in Mozi. I just added some of my own understanding on this basis." Yang Heng said lightly. You can't be panicked at this time. The words of panicky will make Li Er even more suspicious. Yang Heng's tone even had a ridiculous voice. It's such a pity that no one noticed such a good book for more than a thousand years.

"Uh!" Li Er was choked by Yang Heng, but at this moment, Yu Zhang also took advantage of the situation and added damage. "Father, I seem to have seen that book in your study, but why can my brother-in-law make so many things?" Yu Zhang said nothing about Li Er, "I thought my father asked us to come. My brother-in-law kept holding the book of Mo Jing every day!" What do you know? Yang Heng got the Mo Jing. It was just collected at the homes of some veterans in the countryside this time. If he went too late, he might be burned as firewood. When Yang Heng found that these rotten bamboos were Mo Jing, he actually turned out to be burned.

However, he was a little ecstatic and was really sleepy, and there was a pillow coming. You should know that this Mo Sutra is mathematics and everything is available. Even the small hole imaging was first proposed in the Mo Sutra. Although Yang Heng didn't understand this Mo Sutra very well, he knew that this Mo Sutra was done. However, the luckiest thing was that Yang Heng had read a reference book for Shuowen and Interpretation in his previous life. At that time, he bought it for the children and allowed the children to learn, so he had to read it himself first. As a result, the child did not read it, but he read it down. Therefore, he still knew most of the words in this Mo Sutra. Now it is still okay to fool Li Er.

For these ancient oracle bone inscriptions, the Tang Dynasty could explain very little. But because of this, maybe Yang Heng caused some trouble for himself, because someone could finally debate with him over the past.

"I will settle the score with you later. Come and bring the Mo Jing." Li Er gave Yu Zhang a blank look, and then someone took the Mo Jing.

"Your Majesty, is this going to be given to me? I thank you for your kindness." Yang Heng knew that this was going to test him, but he pretended to be stupid and then knelt down to thank him.

"Uh, this, I, you, get up to me, I don't want to give it to you. This is the only book in my palace. Come on, explain it to me and see where the content you said is?"

"Oh, I think Your Majesty wants to give it to me. You must know that the ink scriptures in me are incomplete. If Your Majesty gives this book to me, I will be grateful. Otherwise, Your Majesty will give me some more copying."

"Then you explain the meaning of this sentence to me first." This is indeed profound, and it is actually all oracle bone inscriptions, but it has been picked into Yang Heng's heart.

"The shadow is reflected in the afternoon, and the shadow is long, and it is said to be in the end... in the distance, there is the end, and it is reflected in the light, so it is in the shadow library." "Your Majesty, this does not need to be explained by me, and I can't explain it clearly, but I can demonstrate it to you."

What does this mean? It is the part of Xiao Kong imaging. After Yang Heng read it once, he was happy, "Your Majesty, please find a dark room, and find me a thin plate and a candle. I will show you to you. You can also follow me. This is a part that I have not involved, and it is also a part that is not complete in my place, and it is just right for Your Majesty to complete."

It is naturally easy to find a dark room, and even if there is no, Li Er will ask the eunuchs and palace maids to quickly set up a dark room. "Your Majesty, what are you doing? I'm late." "I've seen my mother (Empress)." Everyone saluted.

"Okay, learn literature, you are so brave!" Well, what's wrong? When Li Er saw Yang Heng, he started to scold him, even Changsun. Fortunately, he asked everyone to scold him after he met.

"You two know how to come back!" Why, you don't like anyone else, "Young lady is here, let me see, it's getting more and more beautiful as you grow older." After all, one of them was praised, but what kind of praise did you give me? How do you answer? Is the answer average or not as beautiful as the empress?

"My little girl has seen the lady." Well, let me give you another gift, "Come on, come on, let me see," and said, then took a bracelet from my hand and put it on my wrist. What's the phenomenon? This is your daughter-in-law, how could he be so polite?

Oh, by the way, the eunuch mentioned above said that Li Er was very happy. Naturally, his purpose was not to scold Yang Heng. So since he scolded him, he had to express kindness in this way so that Yang Heng would not be suspicious.

"Mother, Mother, brother-in-law, is there something fun to show us? You can go in with us to take a look." "Then, okay, I'll go in and take a look." It seemed very reluctant, but her heart was still itchy. You know, not only Li Er was surprised when she heard it, but even Changsun was very curious. How could Yang Heng know so many things? So the live demonstration was just right to see what this is?

"Your Majesty, Empress, the dark room is ready, and cardboard and candles are ready. Should I go in now?" An eunuch came to report. It seemed that even in the palace, there were no dark rooms, or were there some confidential places? This was the temporary preparation, or the requirements were too high, and there was no light inside. He was mainly afraid that the demonstration would fail.

"Your Majesty, wait a moment and let me drill a hole in this cardboard." Because it is cardboard, the hole is easy to drill. Just use a thin round wooden strip to drill a small hole of one millimeter in the middle of the cardboard. "Look at your Majesty, I drill such a small hole in this cardboard, and then it's time to witness the miracle." When Yang Heng said that he was ready, everyone entered the dark room, and candles were lit inside.

Yang Heng looked around and said, "Come here, hold the candle, I say stop, stop." Yang Heng directed a palace maid holding the candle, and then came to a wall, which was a smooth wall.

If it was in his previous life, some people might say, I took off all my pants, so you would let me see this, but at this time Li Er didn't understand these humors. Even if he understood, he wouldn't dare to say it. You should know how many girls there are in it.

"Look at Your Majesty, a miracle has happened." As he said that, Yang Heng placed the cardboard between the candle and the wall, and put the small hole directly opposite the candle flame parallel to the candle flame. Then an upside-down candle flame appeared on the wall. How can we see this? When someone walks around, the flame will naturally swing with the wind. Naturally, an upside-down flame head will swing with the wind on the wall. Then Yang Heng moved the cardboard back and forth, and saw that the flame on the wall was large and small.

"Oh!" Everyone made a marvelous voice. This was a miracle. Could it be that Yang Heng could do any magic or Taoism? Just a small hole image actually shocked everyone.

"Okay, Your Majesty, I've finished my demonstration. Can we go out?" For a long time, Li Er had already not even closed his mouth. I was so surprised that Yang Heng could actually turn the shadow of the candle upside down on the wall. (To be continued...)
Chapter completed!