Xia Sun nodded, expressing his conviction for his husband’s analysis, and immediately asked: "Husband, how come that young boy has so many ghost ideas in his young mind, and they are all good for the country and famous. Great thing.
In the past, the concubine felt that the kid’s "Yebo Jialing" was copied, but now it seems that the concubine doesn’t think so. That kid really has such a family and country feeling in his heart, and he has such an ability, compared to you. It's much stronger when you are young. "
"Huh! Why did Madam pull me on my head again?"
"Why am I wrong? What else did you do when you were young but good at poetry? Is it possible to cure the disease and save people so that the intestinal carbuncle is no longer an incurable and terminal disease, or can you open a good field on the mountain to save the people from water and fire? ?"
"This... Madam, I was good at poetry and prose back then, but this is also good at school, don't you forget."
Xia Sun said irritably, "Calculate? How do you know that kid can't? Maybe it's better than you."
Xia Yun smiled triumphantly: "Madam Haha, what you said is a bit embarrassing! Although these old men have been called Wenzong, some people should still remember that the old man’s arithmetic is actually a great master. Just how can Wu Zheng's little Maotou compare with Weifu..."
In the afternoon of the next day, the master and his old man came back with a wooden box and saw Wu Zheng sitting in the lobby to see a doctor. However, his old man interrupted Wu Zheng's diagnosis and treatment and put Chaihu on top. Yan called to the backyard.
In the backyard, Mr. Huang opened the wooden box in his own room. Wu Zheng stretched his head and took a look and found that it was filled with straw.
"Master, you are always..."
Huang Lao smiled slightly, and stretched out his hand to take out a copper pipe from the straw. One side of the copper pipe was equipped with a guide rail. Wu Zheng immediately became energetic when he saw this, and took the copper pipe: "Master, these You have finished making the parts so quickly? And it doesn’t look like this craftsmanship was made in a hurry. Where do you always find masters like Master?"
Huang Lao placed all kinds of parts outside in the same way, and said angrily: "What do you care about so much? As a teacher, I ask you, can these things be made?"
Wu Zheng smiled slightly and assembled the parts on the table. That person’s craftsmanship is really good. In this age without calipers, he can actually reduce the error range of all parts to within one millimeter. Such craftsmanship Wu Zheng Na is admiration from the heart.
Talent! But it’s a pity that Master doesn’t say anything, otherwise it’s not difficult to hit a pendulum clock with a person’s craftsmanship. If that’s the case, wouldn’t you be able to make a fortune
After a while, a single-objective microscope was assembled in Wu Zheng's hands, and it was no different from the later microscopes except for the absence of lenses.
Elder Huang held the assembled microscope in his hand and looked at it, and then asked, "Is this the thing your kid said that can see fine worms?"
Wu Zheng nodded and said, "Yes, but it hasn't been completed yet."
"That's not enough?"
"Yeah! The lenses are not good enough. You can see if it will work if you try to put them on after your veteran has polished the lenses."
Huang Lao quickly put down the microscope in his arms and took out a cloth bag. When he opened it, there were three convex lenses of different sizes and two rectangular crystal wafers.
Huang Lao said: "I have to say that the mirror polished in the shape your kid drew can really magnify the things in front of you, but although I didn't see the bugs you mentioned."
Wu Zheng smiled and said, "As long as the three-sided lenses are installed on this in order."
After the lens was also installed, Wu Zheng couldn't wait to pick up a crystal chip and drop a drop of water on it, and put it on the light hole to see if the microscope was suitable for use.
In fact, the power of this lens and the focal length have been calculated before Wu Zheng, but the problem is that although the person who makes this microscope is a master, it is inevitable that there will be some errors even if the master is at the level of this era. Now let’s look at these errors. Can't be within the adjustable range.
When the objective lens was aligned with the drop of water, Wu Zheng began to rotate the eyepiece to adjust the focus, because at this time the lens was still white, and he could not see anything except the shadow of his own eyelashes.
Finally, under Wu Zheng's unremitting efforts, something inside the small blisters finally appeared in the lens. Wu Zheng knew that this was... (End of this chapter)