As for where the crystal came from... Li Sheng directly asked Ying'er, the shopkeeper in Chang'an, to bring one to him.
What surprised him was that crystals in this era were very cheap!
Throughout ancient times, religious beliefs have always occupied a dominant position in human culture.
In the imagination of later generations about the European Middle Ages, because of the existence of Catholicism, the aesthetics in Europe is of course based on black and white plain colors.
If you don’t believe it, if you look at the various maids’ clothing in later generations, they are all black and white.
But this perception is actually wrong. Europeans prefer bright and gorgeous colors. It is precisely because they don’t like black and white plain things that they are worn by people like maids.
As for nuns wearing black and white, it is precisely because they oppose people's pursuit of aesthetics. In fact, it is the cassock worn by Catholics.
In China, the overall situation is similar. Plain-colored clothes are easily worn by no one, or they may have various meanings.
Black is okay, but white is so easy that no one wears it at all.
Due to various reasons, transparent crystal is far less valuable than bright imperial green, and it is not as moist and moist as mutton-fat white jade, allowing Confucian scholars to place certain self-requirements on it.
Anyway...
At first, Li Sheng gave Ying'er a budget of fifty taels to buy three or four yuan, but when he actually sent it back, it had already become more than twenty yuan.
However, Li Sheng was quite satisfied with this quantity.
After all, optical processing requires error tolerance. If the operation is improper and a piece of embryo is wasted, wouldn't the magnification be insufficient?
As for the processing parameters, etc., this naturally does not trouble Li Sheng.
The basic optics came easily to Li Sheng.
As for hand-polishing optical lenses, although Li Sheng has never done this job, it does not require mass production, let alone production efficiency.
Under this premise, it is not a problem.
The reason is very simple. The legend of the thirteen crystal skulls may be false, but it also proves that polishing is not that complicated.
then……
Soon, three days passed.
Li Sheng originally thought that he might be in a hurry, but he made four of each part. In the last three days, let alone a quadruple lens, he made four of them directly.
The four telescopes are all nested in dried wooden casings and look very simple.
If you don’t know, you might think it’s bamboo tube rice or something like that…
Li Sheng was indeed not satisfied.
First of all, the appearance of this telescope is indeed a bit gauche.
Secondly, the internal precision of this thing is not good, in other words, the craftsmanship is also poor. In the end, Li Sheng had a vague feeling that this thing is not a quadruple lens at all, right?
Although the design specifications are like this, there are several lenses in one tube, and each lens is polished by hand, which makes it almost boring.
It was so crude that Li Sheng was even a little embarrassed to take action. What the hell was this thing? If it wasn't barely usable, he would have really wanted to throw it away.
It was also on this first day that the assembly was successful. In the afternoon just after the trial,
A guest came to Li Sheng's village.
But it wasn’t just Lao Chen who had made an appointment in advance, but there were also two strange men!
One is Qin Qiong.
The other one is naturally Yuchi Gong.
The two of them had heard a lot of bragging from Cheng Yaojin, so that was a big deal. They had to go to Youzhou to have a look.
Then something strange happened. In the past, Cheng Yaojin was the one who tried to dissuade others from doing anything he wanted to do. This time, it was Cheng Yaojin who tried hard to dissuade Qin Qiong and Yuchi Laomo, telling them not to disturb the young master!
After waiting for three days, the day finally arrived!
…
"Young Master! I have long admired your great name!"
"Sir! Hahaha, I haven't seen you for a few days, but you still look good!"
"Uh... who are you two?"
Li Sheng looked at Lao Chen beside him strangely. The two of them knew each other immediately when they met, but he had no impression at all.
Qin Qiong looked at Yuchi Gong in embarrassment, and Yuchi Gong laughed awkwardly.
He has also recently undergone military reforms and built new weapons.
After knowing the efficacy of these things, I admired the mysterious counselor beside His Majesty.
After listening to Cheng Yaojin bragging for the past two days, I realized that everything was caused by a teenage boy.
This young man is also a master of musical instruments and a poet in the literary world...
Now, no matter how much Yuchi looked down on scholars, he had to write a big word of "submit".
At first, he thought Wei Zheng was the most powerful counselor around His Majesty, much more powerful than those rotten scholars.
Only then did I realize that there are mountains beyond the mountains and there is heaven beyond the mountains. This young man is simply incredible!
We haven't seen each other for three days, and Yuchi Gong is afraid of leaving a bad impression on the other party.
Everything else is easy to talk about. If the young master comes up with this new weapon like a grenade and doesn't think of me, then how can we make a contribution?
Li Sheng looked at Cheng Yaojin strangely while silently observing the two men.
They are all tall and well-trained,
When you go to that station, you can see the two door gods who look very good. One look and you can tell that they are also from the Forbidden Army!
Cheng Yaojin secretly glared at Old Demon Yuchi, and then said jokingly, "Hey, Master, a few days ago, didn't you agree... that there is a good thing to increase your eyesight? I will tell these two comrades in the army."
Let’s talk.”
"I can't help it. These two gangsters have to come with me to visit the young master and take a look at this new weapon. Why don't they just...ah hahahahaha!"
Li Sheng nodded and showed a smile.
"It's easy to say, it's just a small thing, just look at it. But it's quite hot today, you guys have traveled a lot, so come in and have a drink first!"
It's early summer now and the weather is starting to get hotter.
Li Shengjia's cellar ice storage naturally began to play a role.
Soon, several glasses of iced juice were served.
Qin Qiong and others picked it up and took a look. They were suddenly shocked and subconsciously observed the house.
At first glance, it doesn't seem like there's anything special about it.
It is an ordinary country house. It can be seen that this young man makes a living by farming and studying, and he should live a simple life like Zhuge Liang.
But this ice cold water...
Qin Qiong felt that it was not simple. This was only found in the homes of rich families in Chang'an.
Throwing a few ice cubes directly into the water like this is of course very effective, but even wealthy families are reluctant to use this method.
The two attributes of simplicity and luxury were intertwined, which made Qin Qiong a little stunned.
However, based on the many information I heard from His Majesty, it is certain that this young master is definitely not a mortal.
One bite, very refreshing...
"Sir, this doesn't seem to be tea soup, it looks a bit like oranges."
"Oh, this is juice, which is made by squeezing out the water from the fruit."
"The juice in the fruit...and how to taste it!"
Li Sheng laughed and then took out something.
When Qin Qiong and the others took a look, they saw three ordinary wooden barrels. They were about the thickness of a water cup and about a foot long.
When he took out this thing, Li Sheng blushed a little.
This home-made telescope was really hard for him to use.
However, Qin Qiong picked up the barrel, made a subconscious gesture with his eyes, and then suddenly turned pale with fright.