Looking at the three-headed sea Dongqing in front of him, Yang Heng felt an indescribable feeling in his heart.

Although he had a feeling that the Haidongqing would bring him surprise, it was just a feeling. However, when Yang Heng really saw the three heads of Haidongqing who came back, he was still shocked by their image.

If you want to say that the two small seas have grown up and become strong, especially after this super long-distance high-altitude off-road training, the standard muscles are developed and the body is perfect, and it is big and white. It has changed the appearance of gaining weight some time ago and has recovered, and it has even surpassed the body shape when Yang Heng first saw it. Naturally, it was the body shape before he was injured. Maybe he had eaten well at Yang Heng's house during this period, and hunting was just an occasional action. Even if he delivered a letter, he rarely flew to high altitudes. How could he say that he became lazy and gained weight.

Looking at their strong bodies, Yang Heng could even describe their flying scene in his mind. When they fly in the vast ocean and ocean, sometimes they fly in the sky for a long time to find an island. Maybe the two small seas and Dongqing will fall behind, and the old seas and Dongqing will continue flying with them on their backs. There is only one belief in my heart, that is, to find the kind of plant that the little master wants. If they have someone's thinking, they might consider where the little master knew that there was this thing, and that he had to run so far, and to know that he knew this thing. That was when he was in love with his dear to explore unknown places with his dear.

When it thought of its companion, it felt a little sad. The old scene was still there, and the old man, no, the old bird was no longer there, but looking at the pair of children in front of it, it began to be excited again.

Dear, don’t worry, I will definitely train this pair of children to become the sky overlord. Didn’t you expect that I would take them again on our love journey.

Yang Heng shook his head, how could he think so much? Although he regards these three Haidongqing as partners, even the baby does not treat them as any playthings. That, the baby asks them to find things, just a game, and it is only a game, with only rewards, but no punishment. You must know that the more fierce the thing, the more you can feel the good and evil of people. Maybe they sometimes ignore Yang Heng, but they like the baby 100%.

"Da Baibai, Xiaobai, Xiaobai. You are so pitiful. Look, you have suffered. If you can't find it, you can't find it. Where did you find it? It's been so long." The baby in front just happily reported the news to Yang Heng. Now he looked at the image of the three Hai Dongqing carefully. Naturally, he found that they had lost weight and even their eyes were a little red. It seems that Yang Heng thought well, and the baby also regarded Hai Dongqing as his partner.

"Li Li, Li Li..." Da Baibai whispered in a low voice, and even rubbed his head against the baby's face. Xiao Baibai. Xiao Bai didn't seem to understand very well, but he was also familiar with the baby. He also rubbed his head against the baby's body like their father.

"Gee, gee, gee," the baby kept laughing at Hai Dongqing, "Be good at dabai, don't be so reckless in the future. My maid and sister, bring them meat and ask for the best beef."

Let’s not talk about the interaction between the baby and Hai Dongqing, just talking about Yang Heng, he actually has something to do. Before the baby came, he received a message, but before he could leave, the baby came. Moreover, for the sake of the three-headed Hai Dongqing, Yang Heng did not deal with the new thing in time. Now that he saw that Hai Dongqing was fine, he felt relieved and he entered the mountains again.

This is still a relatively simple thing, an irregular circle, and even a protrusion on it. However, the filaments inside and the leads outside all made Yang Heng see that this is a light bulb.

"Our boss, we will do this for the time being. We will work harder. This is our first finished product. After the test of hot and cold water, there is basically no air leakage. But what is this thing used for? Such thin glass, and there are still some metal wires inside?"

"Ha, I'll test this for you right away. Let's go to the generator and I want to see if this thing is reliable." Needless to say, this is the most primitive light bulb, but Zhang Glass' assistants have not mastered the process well yet, but this first product is already useful.

"Wow, it's so bright." "Puff." Just as everyone was sighing, there was a burst of white smoke inside the light bulb. The lifespan of the first light bulb was gloriously killed in battle less than half a minute. Judging from this situation, the breathing was still not clean because there was a burst of white smoke inside.

"It's not bad. Being able to stick to it for so long means that your craftsmanship is correct, but you need to continue to improve your craftsmanship. Moreover, the brightness is a bit too bright. If the air is clean, it will still burn out. You should continue to lengthen the wire inside and design it evenly so that the outer glass shell is heated evenly, and the back of the glass shell can be thicker."...

There were so many things, Yang Heng made a lot of suggestions, but the craftsmen felt like they were being taught and nodded mechanically. They were still shocked by the things they had just shining. It turned out that what they were doing was actually a magical tool.

If Yang Heng knew their thoughts, he would definitely laugh. This was something that was eliminated in his previous life. The only factory that produced that thing was produced was only a few small factories, and the quality was uneven. They even packed light bulbs with different pressure resistance ranges in a box and wholesale them. In addition, some sales staff did not know these things very well, so they sold them directly. As a result, some people would change more than a dozen light bulbs in a while. Why did they all screw the thirty-six volts to the 220 volt power supply.

In fact, it is really not easy to make this light bulb, but the most important step is that Yang Heng has solved it, and the others are not a problem. But what is the most difficult thing? Of course, it is the tungsten wire. Although it was tested for a long time at the beginning, there is a general direction. It doesn’t need to be studied in the light bulb like Xiao Ai in his previous life. What is bamboo charcoal wire, this wire, and that wire was only done after repeated experiments. Speaking of this, Yang Heng had to admire the patience of people of this era. Yang Heng gave them a way, and they used various metal ores to refine this tungsten. Although it was not faster than Xiao Ai in his previous life, it also allowed him to master the processing and production of metal materials. In fact, these experiments are also wealth, and they are not even lower than the value of this light bulb.

The Taoist priests in front of them still have some problems. One is to improve the production process, and the other is to improve the exhaust ability of the air pump, and even the process during sealing.

It is also important to use materials to make the glass shell and the metal shell stick together, and thermal expansion and contraction should also be considered. However, this is easy to say. Just look for it from some test paper piles. Maybe there has been a suitable formula. The lamp mouth is easy to deal with. It is made with copper skin temporarily, or even made directly into a stuck shell instead of a screw shell. The stuck shell is simpler than the screw shell. The lead part is also the lead. The lead wire also leads two wires out from the back of the lamp mouth, and then there will be a layer of hard bonding material on it. Then two small pieces of solder and solder will be dotted on it. At this time, the solder is not sold with electric iron, but with hot iron. The flux is directly made of loose oil, hot iron, which is to tie a small piece of copper with a small piece of copper to form a simple hot iron, and then grind it into the required shape as needed. Isn't this very simple?

Some techniques may be difficult to remember, but when you know the principle, it is still very simple. Some things only need to be studied many times before the finished product will be produced. Yang Heng has already gained a deep understanding of this, and it has been tempered by things over the past few years.
Chapter completed!