Zhu Dahui spread a drawing, and on the drawing, ink strokes, the overall pattern of the bicycle was drawn in the middle, and next to it was the decomposed structure.

The pictures are exquisite and clear, and the structure of the bicycle is clearly visible on this piece of paper.

This was painted by Zhu Dahui himself.

The sketches Lu Heng drew were much more sloppy and sloppy than this.

"The ways in your physics book are quite interesting." Zhu Dahui smiled and said, "In the past, I knew it but not the reason. I understood it in my heart, just like eating and drinking water, but I couldn't explain the specific principles. Let's make a plow, how to use force and save more effort. In the past, it was all passed down from generation to generation. Now I understand it completely."

He couldn't help but say, "This Western-Japanese thing is really eye-opening."

Lu Heng smiled and said, "The truth is hidden between heaven and earth. The ancestors understood the truth and made real things, but did not specifically summarize it. The Western Yi was only one step faster than us, so there is no need to be too surprised."

As the two of them talked, they started to discuss it with the drawings.

As for Lu Heng, Zhu Dahui's drawing has reached his mental standard. He only needs to summarize the production costs and issue a reasonable production plan that is appropriate and can be put into practice.

As for further striving for excellence, it is not impossible to do it, but you don’t have to do it in one breath.

After a little discussion, Lu Heng asked about the cost of this bicycle.

Zhu Dahui calculated and said, "For this car frame, except for the tires, I roughly calculated that the material cost is less than two taels of silver."

He paused: "This is a model, I have made it a little more complicated. Some places can be streamlined, and the cost can be reduced a lot."

Lu Heng knew it and nodded: "If it is mass production, the cost can be lower."

He calculated: "The price of a bicycle in Shanghai is more than ten taels of silver. The cost of two taels of silver also has a lot of profit margin."

It became a dilemma here.

I didn't think that Zhu Dahui's results would be so fast. It would be possible for one year or two years. I didn't expect that I would make a sample in a month. I was thinking about opening a factory in Hong Kong, but now, Ma San is still working for the Shanghai Women and Children Association in Shanghai. Not to mention opening a factory, I have no preparations to go to Hong Kong.

Lu Heng thought about it carefully, probably, he had to press it again.

It seems that it is not urgent to think about it - after all, the previous plan was one year or two.

He said: "Brother Zhu, you break down the technology of this bicycle and let a few apprentices start learning the techniques of each link. Don't be busy starting a factory. There is no sign on the Hong Kong Island yet, so you have to wait for a while before watching."

Zhu Dahui nodded indifferently: "I don't care if I open a factory or not. I just think this thing is quite interesting."

Lu Heng smiled: "Then I'll find something more interesting for you."

Zhu Dahui came in nature: "You said."

Lu Heng said: "What do you think of firearms, Brother Zhu?"

"Gun..." Zhu Daichui widened his eyes: "You don't want me to build a gun, do you?"

Lu Heng smiled and said, "That's what it means. The guns we produce locally are backward and have poor quality; the guns of Westerners are good things. If we can explore and produce some results, it will be of great benefit to us."

After hearing this, Zhu Dahui focused on his mind and nodded: "That's true."

He smiled again and said, "No, I'm really interested in this. But I haven't come into contact with it before. You have to find some real objects for me. I want to take a closer look first."

Lu Heng said: "This is simple. I'll ask someone to take a trip to Shanghai and try to make more things."

Then he smiled and said, "You blacksmith shop, it seems that you have to expand your scale and recruit some apprentices. Otherwise, you will be too busy."

Zhu Dahui was a little helpless: "There are not many people in the town who are suitable for blacksmiths."

"Do your best." Lu Heng said so.

In the next few days, Lu Heng stayed in the blacksmith shop and discussed the knowledge of physics with Zhu Dahui.

Lu Heng himself is only half a jar of water. He has almost forgotten the physics knowledge he learned when he was in school. Now it is equivalent to picking it up again.

Except for the occasional thoughts of Zhu Dahui's eyes lit up, he was not even as good as Zhu Dahui at other times.

Zhu Dahui has never learned this knowledge, but he is in this profession and is absolutely related to physics. He has no theory, but he has rich experience. Often, as long as he understands the theory, he will suddenly become enlightened.

The blacksmith shop gradually became like half a school.

The apprentices in the shop also studied and listened when Lu Heng and Zhu Dahui discussed. Of course, Lu Heng would not stop him, but instead liked him.

If a group of folk physics masters can be cultivated, it will naturally be a good thing that cannot be better.

As for going to Shanghai to get a gun, Lu Heng had already ordered Shi Tou and asked him to go there. He taught him to go to Shanghai and first go to the Shanghai Women and Children Association to find Lin Heier and introduce Feng Jingyao. It would be not difficult to get some Western guns through the Qing Gang.

In addition, this time Shi Tou went to Shanghai, in addition to returning from gun samples, there was another thing, which was the Western medicine matter that Lu Heng was thinking about.

That is, things like amine yellow and penicillin that I thought about earlier.

This requires some special tools, petri dishes, test tubes, etc. It usually takes Shanghai to get it.

Speaking of which, Lu Heng had seen these things--that night, he killed himself through Shanghai and saw a lot in the nursery halls where babies were harmed.

The Western Yi used the convenience of the nursery hall to use our babies for experiments, and there were all kinds of equipment on the test bench.

But those instruments are covered with the blood and life of our children. Don’t say that no tools have anything to do with them. Lu Heng felt that if he used that kind of instrument, he would not be able to sleep at night because he would definitely hear the baby’s shrill crying.

Half a month later, Lu Heng's frequency of going to the blacksmith shop fell sharply.

First, I have almost finished the things I can remember in my stomach, and I can't even think of them even if I rack my brains. Second, I have the medicinal fields in the mountains. There are more and more troubles during this period, so Gong Lan can't stand it anymore.

After half a month at the Blacksmith shop, the results were significant - the book that copied only had about twenty pages of physics, but now the content is several times richer, and the number of pages has exceeded the 60 page mark!

This is an amazing achievement.

Lu Heng dares to say that this physics book must be the premiere of physics in China of this era!

Although in Lu Heng's view, there are still many shortcomings.

In this book, there is a bit of basic mechanics for the time being. There are only a few words in the four categories except for basic physics, power, sound, heat, photoelectricity, and mechanics.

It's still far from it.

Lu Heng has no choice but to be alone. He is not a physicist. He did not learn this when he went to college. He had knowledge of physics from junior and senior high school, and he had no choice but to forget only a few knowledge.

Fortunately, the foundation is established, and in the future, more people's brains will be gathered and filled in slowly.
Chapter completed!