"Why does light turn into fire?"

Shanzhi followed behind Ye Chang and nagged, although Ye Chang had explained many times, he still couldn't understand.

"I once took ice in the winter and accidentally discovered that ice with a convex arc can concentrate light into one, and ice strips with a three-edged shape can disperse light into three......

Ye Chang said as he thought about what would happen in the palace today.

This is the Tang Dynasty, which has a relatively open atmosphere, and people are extremely inclusive, so Ye Chang is not worried, if he says this, he will be regarded as a demon.

"Have someone go to the ice cellar and get ice." In the palace, Li Longji said to Colliers.

When Chen Xuanli arrived, the ice was also taken, first a convex mirror, as Ye Chang said, it really gathered the sun's light into a point, and after a while, the fire was successful.

"If that's the case...... For this matter, summon my son-in-law Zhang Pei to come...... Whoever is on duty today in the Hanlin Academy will be summoned together. ”

Discovering that it is not only the water jade ball that can ignite fire, but also the ice convex mirror that makes fire, Li Longji began to believe that this is not some witchcraft, but just a natural truth like water flowing low and trees growing on top.

After a while, Zhang Pei appeared in front of him, but he was only the person on duty in the Hanlin Academy, but he had not yet arrived.

"Who is on duty in the Hanlin Academy today?" Li Longji asked.

"Li Taibai." Zhang Pei replied.

"What about people?"

Zhang Pei was a little annoyed in his heart, where did he know where Li Taibai, who should be on duty, but Gao Lishi, crooked his mouth beside him: "Bachelor Li likes to be lively, do you also go to watch the city competition and linger?" ”

"Even I want to see it." At this time, Li Longji was quite tolerant of Li Bai, and he smiled: "Since this is the case, I will send someone to summon him at the place of the city competition." ”

Zhang Pei listened to Li Longji's arrangement quietly, but he was a little jealous of Li Bai in his heart.

"Virtuous son-in-law, you preside over the Hanlin Academy, have you ever seen this?"

"This ...... Where did the magic come from? Seeing that Worm Niang was on the side, and thinking of what happened in today's city competition, Zhang Pei suddenly understood that this must be Ye Chang's ghost, and besides, he presented this "treasure" to the emperor through Worm Niang, he must have wanted to please Li Longji, so that he could get an official and a half-job.

Thinking of this, Zhang Pei saluted Li Longji and said: "Your Majesty, this is a witchcraft, how can it be stored in the palace, and the sin of the person who sacrifices this witchcraft must be cured."

Li Longji stroked his beard and smiled: "This is not some witchcraft, is it?" ”

"How is this not hex?" Zhang Pei was stunned when he heard this.

The emperor was extremely jealous of someone in the palace who used witchcraft to confuse the public and harm people, Emperor Wu of the Han Dynasty was eloquent and strategic, and he also killed his prince because of witchcraft, Li Longji's personality was close to that of Han Wu in this regard.

"The virtuous son-in-law doesn't know the reason for this?" Li Longji didn't bother to argue with him, so he asked again.

Zhang Pei was thinking about how to use this matter to get Ye Chang in, how could he be in the mood to think carefully, and shook his head: "It's not witchcraft, it's also a strange trick, it's really not something that the Son of Heaven and the scholar can hear." ”

This swept Li Longji's interest, especially when Li Longji saw the insect girl standing there pitifully, thinking that he had just scared this little daughter, he smiled and waved his hand: "Virtuous son-in-law, you still need to do some learning." ”

First the convex lens gathers fire, and then the prism splitting, among the two, Yang Yuhuan is very interested in the latter, and said to him with a smile at this time: "San Lang, if you use this prism to split the light and shine on the stage when the pear garden is singing and dancing, wouldn't it add more color?" ”

"But you need to move with the joy to ......"

The two of them discussed with great interest how to use the prism to decorate the stage, and after a while, they heard the sound of the little eunuchs puffing, and then they saw two little eunuchs walking in with a person.

Still far away, I smelled a smell of wine.

"Li Qing is really a fairy in wine, and he can't leave wine for a moment." Li Longji smiled: "When you are drunk like this, I don't know if you can still speak." ”

"I'm not drunk, I'm just a little tired." But he saw that the man pushed the little eunuch he was holding away, stood staggeringly, and saluted him: "Today's market competition, there are a total of forty-seven kinds of wine, in the past, it took time and effort to sell them one by one, and today when they got together, the minister was greedy, and asked His Majesty to forgive his sins." ”

His eyebrows are thin and his eyes are long, the wind is handsome, elegant and chic, although he is drunk and cute, he is drunk but does not fall.

It was Li Taibai.

Li Qing is not drunk, and tell me what is going on. I asked Master Zhang, but he didn't know it, he thought it was witchcraft. ”

Li Longji signaled to Gao Lishi, who instructed the little eunuch to fetch ice again, use a convex lens to make fire, and use a prism to split light.

When the rest of the people saw this scene, they all exclaimed again and again, Li Bai looked at it with drunken eyes, but he smiled silently.

"Li Qing?" Li Longji asked.

"Convex lens for fire, this must be Wu Ye Chang's means." Li Bai's first sentence made everyone smile, but the second sentence was a little amazing: "The same is true for those who use the Yang Tunnel in the army, as contained in the "Book of Rites", 'Zuo Pei Jin Sui, and its kind.' There is also a saying in "Huainan Wanbi Technique", "Cutting ice makes a circle, lifting it to the sun, and taking Ai to bear its shadow, then the fire is born." ”

Speaking of this, Li Bai glanced at Zhang Pei, and said with a smile: "Bachelor Zhang is familiar with Hanmo, such idle books, not the director of the bachelor's degree." ”

Zhang Pei was silent.

He originally regarded it as a thing of witchcraft, but he didn't expect that there would be such an allusion.

He can be regarded as erudite, otherwise he would not be able to sit in his current position, but compared with Li Bai, he is still far behind. Li Bai is well-read, and has a strong memory, such allusions come easily, as if the book is on the side.

However, although Li Bai was kind enough to excuse him, he didn't appreciate it.

He lowered his eyes and no longer looked at Li Bai, Li Bai's mind was negligent, he didn't care about this detail, and pointed to the prism splitting light, and said: "Kong Yingda of the National Dynasty notes the "Book of Rites", and the eclipse HL side note in the "Moon Order", 'The sun is thin and the sun leaks the day, and the sunshine and raindrops are rainbows,. Could it be that the raindrops are also prismatic, so the daylight is also a rainbow?

He talks eloquently, writes well, and sways freely. After finishing speaking, he couldn't help but smile and said: "The others only say that the ministers are in the Hanlin Courtyard, drinking every day, but they don't know that the ministers are also well-read. The minister is very human, the more the wine, the deeper the wisdom, and please give the wine to His Majesty. ”

This is almost the norm for him, every time he drafts an edict, or writes it in a beautiful text, or prepares it as an adviser to Li Longji, he has to ask Li Longji for wine. Li Longji smiled, very happy in his heart, and at the same time sighed a little.

It turned out that it was not that Ye Chang had any witchcraft, but something that everyone before knew about, but although it was obvious to the predecessors, they didn't make use of it.

"Why did Qing know that it was Ye Chang who did it when he saw it?" Li Longji asked with a smile.

"People in the world are mediocre, but Ye Shiyi is clever and can find these truths in ancient books. He is also a man of good deeds, and when he looks at this truth, he will practice it. Li Bai said.

"Qing and Ye Chang know each other?"

"God has been friends for a long time, and he has never known all his life."

Li Longji nodded, and his heart suddenly moved, Ye Chang's ingenious thoughts were very helpful to his Liyuan Zhuling, maybe he should give this kid a chance?

But looking at the smiling insect girl on the side, Li Longji changed his mind again.

Can't give this guy a chance to get close to the insect girl, although the insect girl is still young, but this guy has been in Chang'an for a long time, and the insect girl has another two or three years, isn't it going to start growing?

"Since God has been friends for a long time, I will order Qing to do something for me." Li Longji looked at Li Bai: "Please go and see this Ye Chang for me." ”

Li Bai was happy in his heart, he had long intended to befriend Ye Chang, and he also wanted to take this opportunity to recommend Ye Chang to Li Longji, but now listening to Li Longji's tone, he was going to summon Ye Chang, so he couldn't help but rejoice for Ye Chang.

Zhang Pei was in a completely different mood.

One Li Bai was in the Hanlin Academy, which already made him feel threatened, and if there was one more Ye Chang, he felt that it might affect his status in front of Li Longji.

What's more, Ye Chang's discord with him is clear.

Therefore, when he heard that Li Longji asked Li Bai to see Ye Chang, he overturned the old vinegar in Tanshan Mountain, which was so sour that there was no edge.

If it weren't for knowing that Li Longji was stubborn, he really wanted to open his mouth at this time and block Li Longji's will.

Li Longji groaned slightly, and then said with a smile: "You don't have to declare the decree, you ask him for me, I asked him to return to his hometown, why did he come to Chang'an again." ”

As soon as these words came out, Li Bai was stunned, and Zhang Pei was happy.

"Your Majesty...... Ye Chang has a genius, and His Majesty is ......"

"It's just some strange tricks, Your Majesty repelled this person, Yao Shun couldn't do it" At this time, Zhang Pei felt that his opportunity had come: "This generation is accustomed to playing tricks and tricks with novelties, and confusing the monarch with novelties."

After a lot of righteous and strict remarks, although Li Bai is eloquent, Zhang Pei is his top boss, and Li Longji is obviously determined, he didn't expect this kind of turn, he was stunned for a moment, after all, he suppressed the unhappiness in his heart, shook his head and said: "If Your Majesty lifts Ye Chang among the dust, the minister is willing to run, but if you reject Ye Chang, you have Master Zhang to serve." ”

clearly refused to go to catch Ye Chang away, and Zhang Pei was happy again when he heard it.

Li Bai's temperament, where does he look like a minister, the order of the Son of Heaven, can he still pick and choose to discount? Although His Majesty is now favored by him, sooner or later he will be annoyed by His Majesty, at that time, Li Bai's words and deeds are all guilty.

"The minister is willing to obey the edict." Since Li Bai refused to do this job, Zhang Pei naturally took the lead and stepped forward to salute Li Longji.

The insect girl next to her flattened her mouth, looking at Zhang Pei's gaze, very unkind.

At the beginning, An Lushan was rude to her and killed her chamberlain, Li Longji originally wanted to punish her slightly, but the result was Zhang Peijin's words, and Li Longji turned his anger into joy. Now that he wants to get rid of Ye Chang, he has repeatedly slandered him, and he is really a villain

Anyway, in her heart, the insect girl hates Zhang Pei, even if Zhang Pei is her so-called brother-in-law.

Li Longji felt that it was useless for Zhang Pei to stay in front of him, so he immediately asked him to drive Ye Chang away, Zhang Pei glanced at Gao Lishi when he went out, Gao Lishi understood, and quietly pouted to Chen Xuanli.

Xiang Chen Xuanli Xuan Xuan Xuan a few sergeants, Zhang Pei was very excited in his heart, if he could take the opportunity to kill Ye Chang on the spot, it would be good.

Out of the palace, he got up, he didn't know where Ye Chang was, he went back to find the insect mother to ask, and he was afraid that Li Longji would be blamed for acting without regulations, so after thinking about it, he came directly to Wang Jin's mansion.

Since Wang Jin is against Ye Chang, this guy always knows where Ye Chang is.

Just when Zhang Pei was looking for Ye Chang everywhere, Ye Chang himself was humming an out-of-tune tune and had already left the gate of Chang'an.

The monk was bored in the carriage and sat outside the carriage, and he turned back with some dissatisfaction: "I'm in a hurry, didn't Master Hu invite us to eat and drink?" ”

"What's so delicious about that wine, not to mention that if you don't leave at this time, will you wait for someone to catch up?" Ye Changhuan said happily: "The matter is done, we have won the two granges of the eldest princess of Yuzhen, and we have obtained 30,000 yuan of Wang Yuanbao, we have gained a lot from this trip, so we should leave early to avoid accidents." ”

He didn't expect Zhang Pei to come to find trouble, but Chang'an had stayed for a long time and really wanted to go back to Xiuwu. His sister has been pregnant for a long time, and she will give birth in just over a month, so of course he has to rush back.

In this year, the woman's childbirth was like passing through the ghost gate, although he had made preparations in advance, but he was also worried that there would be accidents. He is around, and with what he has seen and heard in another life, he can always be better.

The carriage was out of Chang'an from Yanxing Gate, and it was getting dark at this time, according to Ye Chang's plan, he first rested in the previous accommodation of the reverse journey, and then changed to a boat after dawn, and went directly back to Wuzhi along the canal re-dug by Wei Jian.

When I came, there were Jiao Sui and Du Fu, but it was lively, but now Jiao Sui went back to his home to see, Du Fu stayed in Chang'an City to prepare for the imperial examination, and only Ye Chang and Shanzhi remained.

However, just as the reverse journey was in sight, suddenly, behind them, there was the sound of horses' hooves.

Shanzhi looked back, "Huh", he saw more than a dozen people coming on horseback, looking at the appearance, they were all strong families, but whether it was the posture of riding a horse, or the expression, they were all fierce.

The group began to disperse when they were about a hundred paces away from them.

"Lang Jun...... It's not right, they ...... They have bad intentions."

The coachman who drove the carriage was a little panicked, he was just a taxi, and he had seen the servants of the powerful family rampant near Chang'an City. Although Han Chaozong was better after taking office in Jingzhao, it was only limited to Chang'an City, and outside the city, it was not uncommon for powerful families to bully the people.

Ye Chang also poked his head out of the carriage and looked back.

He didn't know more than a dozen of them, and judging from their cold and fierce expressions, they not only had bad intentions, but were also fierce.

Ye Chang's mind turned, there were a lot of people he had offended in Chang'an City, could it be that who sent the assassin here?

Whether it is or not, these people must avoid it, otherwise they will not be able to protect themselves by relying on the monk alone

"Hurry up, hurry up," he urged.

However, at this moment, I saw that in the crowd of the other party, someone was already bending his bow and arrows.

The coachman immediately understood that as soon as he rolled over and rolled out of the carriage, he could not afford to lose his life for the sake of these two guests.

The monk was shrewd, snatched the reins, and urged the horse again and again. I could only hear the buzzing behind me, and then the sound of tuk tuk.

Ye Chang, who was in the carriage, watched four or five sharp arrows penetrate the carriage and almost hit him, and suddenly fell to the floor.

"Damn, it's for our lives...... Monk, into the woods"

It was inconvenient for horse-drawn carriages to enter the woods, but at least they could use the trees to hide from arrows. Moreover, Ye Chang remembered that walking through this forest was where the reverse brigade was, and when they got there, this group of assassins should not be so bold.