The Lone Star of the Tang Dynasty

Cheng Yanjin nodded suspiciously, thinking in his heart: This science is really powerful, even eyesight can be enhanced!

"I always thought this grenade was a fairy art!".

"Lao Chen, you think too much, these are all science. There is no immortal art in this world, everything is reasonable. Li Changge patiently explained.

Cheng Yanjin was stunned there, and sighed with emotion: Why is this science so magical and domineering!

At this moment, Li Changge did not hold the finished telescope that could open people's eyes in his hand, although Cheng Yanjin was full of curiosity in his heart, he could only temporarily suppress the desire to find out.

However, at this critical juncture, Li Changge still made a promise to Cheng Yanjin.

He was firm in his words, and agreed to let Cheng Yanjin visit again at the same time three days later, and he would personally show the true face of this miraculous vision enhancer.

This commitment is not Li Changge's casual boasting of Haikou or ethereal painting cakes to satisfy his hunger, nor does it rely on his ability to predict unknown rewards in the future, but comes from his recent practical practice and accumulation. In the process of building irrigation channels for the villagers, Li Changge accidentally discovered that the nearby rivers contained high-quality river sand resources. He personally collected and carefully screened through different layers of gauze, and finally obtained a high-quality gauze that was delicate and suitable for polishing lenses.

However, fine sand and gravel are not enough as a grinding material. To make a telescope, the most critical component, the lens, is indispensable. Although in the current military environment, marching operations have not yet developed to the point where there is an urgent need for individual equipment telescopes, and the era of special operations and long-range firearms has not yet arrived, which means that Li Changge does not need to mass-produce telescopes. As a result, he only needs to solve the problem of starting from scratch, rather than pursuing the cost-effectiveness of mass manufacturing.

Fortunately, there is no need for expensive glass to make such a simple telescope.

With his wisdom and skill, Li Changge found an alternative: crystal.

Crystal has high transparency and moderate hardness, which can be used to make preliminary optical lenses, which is enough to meet the basic requirements for making simple telescopes.

In this way, Li Changge is confident that in just three days, he will use the resources at hand to fulfill his promise to Cheng Yanjin and take out a primitive telescope that can show the charm of science.

As for the source of the crystal, Li Changge has his own arrangements.

He asked the Ying'er girl in Chang'an City to help him buy a few crystals on his behalf.

The result was unexpected: in this day and age, the price of crystals was quite low. In the common misunderstanding of medieval Europe, due to the serious doctrine of Catholicism, people often thought that the beauty of black and white was admired at that time, which can be seen from the popular maid attire in black and white tones. In reality, however, Europeans were more inclined to colorful and flamboyant costumes, and those colors that were not considered flashy enough were assigned to lower-status groups such as maids. The reason why the nuns are dressed in black and white is in fact a manifestation of the Church's opposition to secular aesthetics, and their clothing is equivalent to the monk's robe.

Back to the land of China, people's perception and choice of color are also quite particular, plain clothes are not special occasions or contain specific meanings rarely worn, especially pure white, and few people wear them daily.

Therefore, transparent and pure crystals are not as sought after and endowed with deep cultural sustenance as gorgeous gemstones or warm and delicate mutton fat white jade.

Li Changge originally planned to buy three or four pieces of crystal raw materials for fifty taels of silver, but he didn't expect that the girl Ying'er would bring more than 20 pieces when she came back, which greatly exceeded the budget, but it also made Li Changge quite satisfied, after all, there will inevitably be losses in the processing process of optical components, and with sufficient spare materials, you don't have to worry about the problem of insufficient lenses due to operation errors.

Although hand-polishing optical lenses was a new challenge for Li Changge, he was able to control the work thanks to his solid scientific knowledge and the fact that he did not need mass production, but only focused on meticulous crafting.

The legend of the thirteen crystal skeletons may be a myth, but it shows that the hand-polished lenses are not as complicated as they seem.

In the blink of an eye, the agreed three-day period had arrived.

Li Changge originally thought that time was pressing, but with his rigorous attitude and careful preparation, he not only completed the production of a quadruple mirror, but also exceeded the task, making a total of four telescopes.

The telescopes are nested in a dried wooden shell, and although they have a simple and even rough appearance, at first glance they may be mistaken for ordinary objects such as bamboo rice, which makes Li Changge quite embarrassed.

He wasn't very happy with the finished telescope......

First of all, because their appearance is too simple, and secondly, the internal accuracy cannot reach the ideal state, and the process appears to be relatively rough.

Although the initial goal of the design was to quadruple magnification, since each lens is polished by hand, there are inevitably errors, and the actual effect may not be up to standard. The simplicity of the telescope made Li Changge hesitate whether he should show it to others, and deep down he even flashed the thought of discarding it ...... his heart

On the afternoon of the first day of successful assembly, Li Changge's Zhuangzi ushered in two unexpected visitors—in addition to Lao Chen, who arrived as scheduled, there were also two strange men, Qin Qiong and Wei Chigong.

After hearing the boast of the magic telescope from Cheng Yanjin, they decided to go to Youzhou to find out in person, driven by curiosity.

Interestingly, this time Cheng Yanjin's role became a dissuasion, trying his best to prevent Qin Qiong and Wei Chigong from disturbing Li Changge.

Finally, at the appointed moment after waiting for three days, they came to the manor where Li Changge was.

......

"Childe, I have admired the name for a long time!" Qin Qiong greeted Li Changge enthusiastically as soon as she saw her.

Wei Chigong followed closely behind, and said with a bold smile: "Childe, I haven't seen you for a few days, and your demeanor is still the same!"

Li Changge looked at Cheng Yanjin with some confusion, confused by the two sudden visitors.

"Who are ......?" he couldn't remember where he had seen them.

Qin Qiong and Wei Chigong looked at each other, slightly embarrassed.

Qin Qiong embarrassedly explained that the recent military reform and the emergence of new weapons had made them admire this mysterious strategist beside His Majesty, and knowing that these were all from the hands of a teenager made Wei Chigong, who was known for his bravery, have to look at the scholar differently.

originally thought that Wei Zheng was already a top strategist in the court, but now it seems that this young man is even more talented, both civil and military.

Wei Chigong has always been worried about leaving a bad impression on Li Changge, especially when it comes to the manufacture of new weapons. If Li Changge developed something new but didn't bring him, then how could he make meritorious contributions?

Li Changge looked at the two sturdy men in front of him quietly, and secretly speculated about their identities in his heart.

Seeing this, Cheng Yanjin hurriedly interjected to relieve the siege: "Oh, childe, didn't you say a few days ago that there is a good thing that can enhance your eyesight? "

Cheng Biting Jin said with a smile: "The two of them have to insist on following me to visit Gongzi, and they also want to see those new weapons, so they came over together, hahahahaha!"

Li Changge smiled indifferently and responded generously: "It's okay, it's just a small object, you can just take a look at it." Now that it's hot, let's get some drinks to cool off in the house. "