There are many ways to make fire in the army, and the best is to use a yang tunnel - a concave copper mirror, but the cost is too high, and a fire bead - a glass convex lens is also used.

However, the glass produced in China is lead barium glass, which has a low melting point, brittleness, and bubbles, and the concentrating effect is not very ideal. Therefore, there are various methods of making fire in the army, and everything is used, and there is also a market for ancient methods such as drilling wood to make fire.

In later generations, some people often regret that China did not have Western soda-lime glass, so it could not build telescopes and microscopes, and failed to trigger modern science. That's a family statement, of course. But there is an important reason why China did not switch from lead-barium glass to soda-lime glass for a long time: for a long time, glass was a cheap substitute for jade, and glassware was almost always imitation jade. Jade pays attention to warmth, seems to be transparent, too transparent but not good, so the glass industry has not developed in the direction of purity.

In other words, under this kind of thinking guidance, even if soda-lime glass is produced, even if they understand the characteristics of convex lenses, Chinese will not build telescopes. Moreover, observing the stars is a privilege only available to the imperial court, and ordinary people who observe the stars casually will be killed. After the Ming Dynasty imported telescopes from the West, they were only used by scoundrels to peek at beautiful women bathing in the distance, but no one used them to observe the starry sky.

"Nanyang Wood Academy, Qin Luo, they have a sum of money to come over, do you know?"

Yuan Quan nodded again and again. "I forgot about this, I should have told you a long time ago, I never remembered it. What did you hear Shi Yuan say? ”

"Well, I don't want to spend this money just casually." Sun Ce sat up. "I want to invest in a few more projects and make money profitable."

"Are you still addicted?" Yuan Quan couldn't help laughing. "But it's not bad, if you invest a hundred gold, you will be recovered in three or four years, and you will make a lot of money, so you can indeed invest again." How, do you want to invest in glaze improvement? ”

"I'm going to invest 100 gold to make a glass plate with good translucency. In the future, glass panels will be used as windows, and there will be no need to light them in the daytime. Can you pick up the workshop or not? ”

Yuan Quan was surprised. "Isn't it too extravagant to make windows out of glazed panels? The glass is fragile, and if the cost cannot be reduced, there are not many people who can afford it. ”

Sun Ce looked at Yuan Quan and was overjoyed. "Sister, you said that after a hundred years, I would see you again General Ah Weng Yuan, why did he chase and kill me?"

"Why did you go after you?"

"Do you think, the fourth and third dukes of your Yuan family, when did he worry about money in his life? If you knew that you were now talking about it at every turn, and you still let Boyang go to the workshop to do things, would you complain that I misled people's children and led you astray. ”

Yuan Quan glanced at Sun Ce and couldn't help laughing. "If that's the case, I don't think you need to think about me for the time being, but you should think about my aunt first. Dezu was tossed like that by you, she wanted to know, and it was strange if she didn't trouble you. ”

"Uh......" Sun Ce thought of the Mrs. Yuan he had never met, and his scalp was a little numb. Compared with Yuan Quan, Yang Xiu is now a real money fan and miser, and he is simply sorry for his noble bloodline. Zhao Wen was deflated, will he complain to Yang Biao when he goes back?

"Sister, let me tell you, your workshop should also be a little creative. Every year, you should take a part of the money from the profit to encourage innovation, and don't just look at the profit in front of you. Let me tell you, these investments are golden seeds, and the benefits that can be generated in the future are beyond your imagination. How much money can be raised by fundraising? To be able to create profits is the real ability. You also know that before Nanyang Tieguan started, the Cai family began to make money by selling new weapons, and now it is still an important source of profit for the Cai family. How did that come about? I made it with money. Otherwise, Cai Mao can go to Wu County with the money? ”

Sun Ce was overwhelmed by the pandemic, and his self-confidence was damaged, and he found a little confidence by talking about the glorious deeds of this era at the beginning. He strongly encouraged Yuan Quan to increase investment in innovation and turn the Pingyu Workshop into a model. At present, the Pingyu Workshop is actually a military enterprise, and its main products are all kinds of ordnance, which is supported by military procurement, and does not have too many advantages in itself. Don't look at the prosperity now, in the future, the world will be peaceful, and such workshops will face the danger of closure, just like the military merit.

If there is no war, who will purchase a large amount of ordnance?

Yuan Quan looked at Sun Ce with a smile and secretly breathed a sigh of relief. Sun Ce has been under too much pressure these days, and she is really worried that he will be crushed. Now seeing Sun Ce's vision of the future with her eyebrows fluttering, she was happy in her heart, and the heart hanging in her throat could finally be counted.

After all, I am still young, and I am inevitably nervous when I suddenly encounter a pandemic.

——

Luoyang, Yu Township.

Huang Wan and Ma Riyan held hands and sighed relatively. Although Ma Riyan is from Guanzhong and nearly twenty years older than Huang Wan, he is bowing his head at the moment, hunching his waist, and showing a pleading face.

"Ziyan, if you respect me, I will sell an old man, you still have to consider this matter carefully. In the difficult autumn of the imperial court, it is not appropriate to use more swords. After the soldiers, there will be a great plague. Guanzhong has just experienced a drought, thanks to Nanyang's transportation of 300,000 stones, barely survived, at this time with the Sun family father and son, I am afraid that public opinion is not good for you. ”

Huang Wan is more than half a hundred years old, but his waist is still straight, his beard is black, although his eyes are full of bloodshot and he is a little tired, but his expression is indomitable. He patted Ma Riyan's hand. "Ma Gong, I am not a belligerent person, if the father and son of the Sun family can understand the goodwill of the court and enter the customs by edict, I am happy to see it. When Sun Jian passes through Luoyang, I will set up a banquet to entertain him. Speaking of which, when he was begging Dong, he was the only one who attacked Luoyang and buried the emperor's mausoleum, and he was also a loyal and righteous person. I also hope that he will be able to discipline his children, be loyal to the whole festival, and will not lose his reputation in the history of the future years. If he insists on going his own way, then I can't help it, so I have to be a praying mantis blocking cars. ”

Ma Riyan smiled bitterly. He shook his head helplessly, and was about to persuade a few more words, when the samurai on the side reminded him that a knight was approaching in the distance. Ma Riyan was surprised, Huang Wan was also surprised, the two looked east together, only to see the smoke and dust billowing in the distance, straight into the sky. Huang Wan looked at it for a moment, waved his hand, and signaled the guards to be vigilant, but he was not too nervous. Judging from the smoke and dust, the number of opponents will not be too much, there should only be one or two hundred riders.

"Ma Gong, maybe Sun Jian knew that you were coming and came to greet you."

Ma Riyan smiled, but did not speak. He also hoped so, if Sun Jian was so polite, his mission would be a little more likely to be completed.

A moment later, Ma Chao and the others galloped over and stopped when they were still a hundred steps away from the car. Ma Chao took the lead. He did not wear armor, he was wearing a snow-white coat, a military crown on his head, two long pheasants swaying in the wind, a snow-white brocade robe on his body, the hem of which was lifted to reveal a white brocade hakama, and a pair of finely crafted deerskin combat boots on his feet. With a handsome face and a short black beard, he looks energetic and majestic.

"Stop!" Pound raised his hand, and a hundred knights strangled their mounts in unison, two in a row, neatly arranged.

"Dismount!" Pound gave another order, and the knight turned over and dismounted at the same time, and stood beside the horse, standing as tall as a pine.

Ma Riyan glanced at the battle flag and was very surprised. "This is the family crest of my family, not Sun Jian."

Huang Wan's eyebrows frowned slightly, and he was faintly uneasy. He recognized Ma Chao. When he was in Chang'an, he met Ma Chao, and he also knew that Ma Chao later went to Nanyang, and now he is the commander of Sun Ce, and he is still a trusted general of Sun Ce.

What is the imperial court doing, the envoy is still in Luoyang, and Sun Ce received the news?