Wu Zheng patted his chest. There was the two thousand liang Jiaozi he had just hid. He planned to wait until He Lao Wu came down the mountain to get the gunpowder and let him take it back, so that he would no longer have to worry about his stingy master. I was worried.
In the past few days, Wu Zheng is still sitting in the hospital. When there is a patient, he gives treatment to others. When there is no patient, he and Chaihu make gunpowder together.
Chaihu didn’t know what was the use of this black gunpowder. He only knew that the medicinal materials used for this medicine were taken out of the medicine cabinet and used to save people, and in the process let him To my surprise, the sulfur and saltpeter can be purified.
You must know that the sulphur and saltpetre that Master bought has already been washed once, but he did not expect that the things he tried so hard to purify would still be unqualified in the eyes of Brother Wu Zheng. This made him feel frustrated and felt at the same time. I was very lucky because he was fortunate enough to learn another technique for purifying medicinal materials from Brother Wu Zheng.
This made him feel the heavy workload under Wu Zheng's daily squeeze, but he never gets tired of it.
What Wu Zheng had to do was to mix the purified saltpetre and sulfur with the charcoal powder he bought according to scientific proportions, and then use bamboo tubes to make firecrackers and give it to He Lao who came every three days. Five take it back to open the mountain and build the road.
To be honest, Wu Zheng still felt boring even in this way, but he didn't want to go back so early, because the purpose of going down the mountain this time was one thing that he didn't accomplish, that is, he wanted Father Xia to take a look at his land deed.
At this point, the rice seedlings in the fields are about to grow taller. Now, almost everyone in Yuzhou City knows about the fact that I opened up the fields in Shenmu Mountain. The Huang Cishi and He Xianling will be able to bear it and not look at it with curiosity. Look
If they are curious, let's do it if they are jealous
But originally thought that after he was cured, Mrs. Xia would show the title deed to Xia by herself. But the old man seemed to have forgotten about it. He stayed at home with his wife and didn't visit the clinic every day. Ask his wife what he should pay attention to when he is sick, and what to eat is good for the body.
Then I would have the opportunity to show him the title deed, but the old man didn’t come, and even his master had been busy looking for crystals all over the world these days, as if he had forgotten this matter. There is no chance to take oneself to Xia Fu always.
It's hard to say that this is self-inflicted. If you didn't tell Master and his elders about microscopes, now you don't want to take yourself to the Xia Mansion all day long, you should go there once in the morning and evening!
Just when Wu Zheng was boringly pulling the pen holder on the table, Huang Lao finally came back, holding a floral cloth bag in his arms, mysteriously walked to Wu Zheng's table, put the baggage on the table, and pointed at the baggage. : "Look at these fits."
Wu Zheng boringly picked up the baggage with his hand and saw it. Inside were four crystals of very good color, which had been cut into four pieces of moderate thickness by the craftsman. Although it looks a little gray and opaque, but That's because it hasn't been polished yet. It shouldn't be difficult to use such a crystal wafer to make a microscope after the polished.
"Master, your old man only found these after looking outside for seven days?"
"Why is this kind of crystal inappropriate?"
"Why not suitable, these crystals should cost you a lot of money!"
Old Huang said angrily: "You care how much I spend, tell me what should I do next?"
Wu Zheng removed a pen from the pen holder, and started drawing on the paper on the table where the prescription was written. First he drew three convex lenses of different sizes, and then he drew a microscope shelf on several other sheets of paper. The dimensions of the eyepieces and the barrels of the object are marked and handed over to my master.
Elder Huang held these papers in his hand and even read it several times. It seemed that he couldn't see a single reason with his old man's wisdom, so he asked: "Just these things can you see the invisible bugs you said?"
Old Huang's question was a bit convoluted, but Wu Zheng still understood, and smiled: "These are just parts. After all these things are finished, they should be almost assembling."
"What's the difference?"
"Then it depends on the craftsmanship of the person who polishes the mirror. In short, this is a very troublesome thing. Master, these are the parts drawn by the disciple, so when you always find someone to do it, you must fix the size properly, otherwise it will happen. You can't go up with fashion... (End of this chapter)