"Does this classmate know how to gather this focus?" Zhang Bei saw that Han Du was speaking clearly and asked quickly.
As for whether he ever suspected that Han Du was bragging? Zhang Bei himself is crazy in the eyes of others, so what right does he have to doubt others? Now he is like a man drifting in the flood. Even if there is only a straw, he will desperately catch it.
Han Du took a magnifying glass from a student's hand, turned it over, took a look, and said with a smile: "Although the magnifying glass can focus light, it can only focus on the sunlight within such a large range of the mirror surface."
"You mean, as long as I can build a large magnifying glass, I can gather enough sunlight to melt gold and sparkle iron?" Zhang Bei was eager to give it a try.
Han Du glanced at Zhang Bei speechlessly. From a logical point of view, although the method proposed by Zhang Bei was a bit straightforward, it was not wrong. Theoretically speaking, if you make a magnifying glass large enough, you can gather enough sunlight, but is this possible?
Another student also frowned and said to Zhang Bei: "This is impossible. How big a magnifying glass are you going to make? It will definitely not work if it is small, but if it is to be very large, the density of the glass?????? ??????????It’s not light, do you know how heavy it will be?”
After all, this student is sensible. Let alone whether such a large magnifying glass can be built. Even if it is built, how should it be used given its weight?
Zhang Bei was immediately confused, and subconsciously turned around and asked Han Du: "Do you know what to do?"
Han Du smiled: "It's very simple. Why do you have to use a magnifying glass? Don't you just want to gather the light? It's the same with a mirror directly."
"Mirror? Mirrors don't focus light, only magnifying glasses do." Another student immediately said loudly, while glancing at Han Du, doubting whether he really had real talent.
Zhang Bei had the same idea, but suddenly his expression changed and he was stunned. His eyes burst with light. He patted his thigh and said, "What a good idea!"
"What's so good about it? The mirror can't focus the light..."
Zhang Bei suddenly looked at his friend and said with a smile: "This classmate is right, just use a mirror. It is true that mirrors cannot focus light, but we can shine dozens or even hundreds of mirrors at the same time. Isn’t one place equivalent to gathering light?”
Several people were stunned. They had never thought that mirrors could focus light. Because when their teacher taught them, he said that only a magnifying glass can focus light. Moreover, experiments were carried out to make them memorable.
Han Du looked at Zhang Bei with admiration in his heart. Han Du knows better than anyone how the gentlemen of the Academy of Sciences teach. Of course, it cannot be said that what the gentlemen taught is wrong. When the area is small, only a magnifying glass can reflect the effect of focusing light. Zhang Bei was able to react quickly after being reminded by himself, which is a testament to his intelligence.
"This classmate, how about we do this experiment together?" Zhang Bei invited Han Du.
How could Han Du, a person who wanted to be a salted fish and lie flat, do such laborious experiments with him? Besides, Han Du already knew the effect of this experiment, so there was no need to do it himself.
He waved his hands and refused: "No, I have other things to be busy with recently. You can do it yourself. After you are done, you can ask me to come and take a look. After all, I am also curious about it."
Seeing Han Du reject Zhang Bei was very regretful, but he couldn't say anything to persuade him to stay.
I don't know since when, some students in the academy became keen on experiments, and Zhang Bei was one of them. Zhang Bei thought that Han Du also had his own experiments to do, so he couldn't insist on inviting him.
Han Du smiled and passed a few people. After taking a few steps, he looked back and saw that they no longer cared about him. They held their heads together tremblingly, obviously discussing their experiment.
I sighed in my heart: "Why do I, a dignified Duke of the country, like to come to this academy? Isn't it just for these innocent and stupid students?"
...
On such days, Han Du spent several months enjoying himself in the academy.
One day, someone was suddenly summoned into the palace by someone sent by Jing Yun.
"Your Majesty, Han Du, pays homage to the Queen."
When Han Jingyun saw his brother coming, he quickly said: "Brother, what are you doing? No matter what happens to me now, you are still my brother."
"The etiquette cannot be discarded!" Han Du finished the salute after seeing this.
Han Jingyun had no choice but to let him go.
"Brother, sit down quickly."
The two maids quickly moved out of Jindun and placed them behind Han Du.
"Thank you, empress." Han Du bowed his hands and sat down calmly.
Han Jingyun poured tea for Han Du with his own hands, put down the teapot and asked, "Seeing that the twelfth lunar month of winter is coming, I haven't been home for so long. Are my parents okay?"
"Don't worry, I'm in good health!" Han Du said with a smile.
Han Jingyun asked a lot about the situation at home, and then felt relieved. He suddenly stood up and walked outside the Kunning Palace. Kunning Palace is located on a higher ground. Standing on the steps, you can see row upon row of houses, and you can see all the way to the outside of the palace wall.
"Looking at this deserted palace, I understand why my brother was so firmly opposed to me marrying the emperor."
Han Du's expression changed. He thought there was a conflict between Han Jingyun and Zhu Biao, so he quickly lowered his voice and asked, "What? Is the emperor treating you badly now?"
Han Jingyun is so smart, he can guess his brother's thoughts as soon as his thoughts change. He smiled and shook his head and said: "Brother, you have misunderstood. The Emperor is very good to me. Even in order to take care of me, the Emperor never took another concubine after my wedding."
Since it was not Zhu Biao's problem, Han Dujiu was puzzled.
"Then why are you doing this?"
Han Jingyun smiled slightly, took a deep breath and said, "I just feel a little deserted."
Han Du immediately lowered his head. There was nothing he could do to help the girl. Jingyun lives in the palace, surrounded by countless people waiting on him, and has two sons in front of him. Does this still feel deserted?
Seeing that his brother didn't say a word, Han Jingyun waited for a moment, but finally couldn't hold it any longer and asked, "I want to go back to the academy to teach."
"What?" Han Du didn't react for a moment, and asked subconsciously: "Tell me, what do you want to do?"
"I want to go back to the academy to teach." Han Jingyun stared into his brother's eyes and said firmly.
Han Du rolled his eyes and immediately felt trouble.
"I'm afraid the emperor will not agree to this."
Zhu Biao wanted to trap Han Jingyun and not let anyone see him but him alone. Even when Zhu Biao went to Han Mansion several times, he went alone without taking Han Jingyun out of the palace. How could he agree with Han Jingyun to teach in the academy?
Besides, isn't it nonsense that a queen like you goes to teach in an academy?
"Aren't you the judge of the academy now? As long as you agree." Han Jingyun made up his mind to break through Han Du and held on tightly.
Han Du suddenly laughed, shook his head and said: "You are wrong. The emperor has always been the judge of the academy, and I am just a deputy judge. If you want to go to the academy, you really need the emperor's consent. "
If Zhu Biao could agree, why would Han Jingyun need to find his brother? Han Jingyun once tested Zhu Biao's attitude, but Zhu Biao declined without even thinking.
Han Du looked at the girl strangely and asked, "Why do you want to teach in an academy if you are such a good queen?"
When Han Jingyun was rejected, his anger suddenly surged. He glanced at Han Du and said, "I am a gentleman from the academy. Why can't I teach? You keep saying that I can't go. Didn't I teach less before?"
Han Du sighed helplessly: "Now and then, you were not married yet. Now you are the Empress of Ming Dynasty, how can you still go to teach in the academy? "
"I don't care, I'm going." Han Jingyun resorted to his petty temper.
She was really bored staying in the palace. One of her hobbies was studying mathematics and the other was teaching. In the past, she had to study mathematics, which did not make her feel bored. Now she feels that she has reached a bottleneck in her research and there will be no results in a short time.
The joy of teaching in the academy resurfaced, and as soon as it appeared, it was out of control, so I wanted to go back to the academy.
But she didn't even think about it. Now that she was the Empress of Ming Dynasty, how could she go back to the academy?
The girl Han Du had no choice but to nod in frustration: "Okay, okay..."
"Brother, do you agree?" Han Jingyun instantly became happy.
But Han Du immediately told her that she was happy too early. "Now the emperor is the judge, and I, the deputy judge, can only listen to him. If the emperor agrees to your going to the academy, then I will naturally not object. Okay, now I will go to the academy and wait for your good news. Come on!"
With a smile on his face and gestures to the girl, Han Du quickly slipped out of the palace before the girl came back to her senses.
Oh my god, it’s so scary! Is there any girl who cheats on her brother like this?
Han Du originally thought that this was just the girl's whim, but she stopped after a while.
Unexpectedly, a few days later, Zhu Biao sent an eunuch to summon Han Du.
Han Du suddenly felt a hair in his heart, feeling that the person summoned was not good. When he arrived at the palace, he saw Zhu Biao with a wry smile on his face.
After the ceremony, Zhu Biao was the first to ask: "I heard from Jing Yun, do you agree with her going to teach in the academy?"
Han Du was stunned, and instantly understood that the girl was misrepresenting herself in front of Zhu Biao, and quickly explained: "Your Majesty, how can I agree? How can I make the decision on such a thing?"
After hearing this, Zhu Biao nodded helplessly and said with a smile: "I knew she was deliberately trying to shirk it, but now Jing Yun has to go to the academy to teach. What do you think we should do?"
Han Du was stunned and asked tentatively in a low voice: "Your Majesty, you don't really want your empress to go to the academy, do you?"
If Zhu Biao thinks this way, then Han Du feels that this matter has nothing to do with him.
