Take the mall to Datang

Cheng Zhijie left in a carriage, and Gao Chunxing said beside him, "Duke Lan, what does Duke Lu mean? Does he really want to go into business?"

"It doesn't matter if it's true or not. Anyway, it's true that he has funds in his hand. Let him see for himself. If there is real investment, the Economic Development Department should pay close attention to it. If it runs well in the future, it may bring more benefits to the Economic Development Department." Great benefits." Yuan Shan said.

"Yes." Gao Chunxing said.

It was almost dark when Yuan Shan returned to the mansion. Lanzhou was originally a sparsely populated place. It was a long journey back from the suburbs. Kerosene lamps were used in the mansion at night, and they were all custom-made from Yuanjia factory. .

But if there are too many meetings in the house, there will be some smell of kerosene fumes.

"Husband, you are back, I will ask someone to serve the meal." Dugu Ruolan said.

"Well, you haven't eaten yet. Next time I come back late, you should eat first." Yuan Shan said.

"That can't be done. Husband usually has no restrictions on concubines and others, but these things must not be too laissez-faire. This will spoil us, and spreading the word will ruin our reputation." Dugu Ruolan objected road.

The tone of voice was slightly complaining, Yuan Shan didn't care, but he still followed her and said, "Okay, do as Madam says."

Yuan Shan said suddenly: "When you turn on the kerosene lamp, you need to open the windows to release the kerosene fume. This mansion is well designed, but it is not as good as our own mansion in some details."

"What my husband said is that kerosene lamps are very good, but the smoke is unavoidable. In winter, there are exhaust vents for smoke, but it will affect the indoor temperature. If your husband is so powerful, you can't replace all the lamps with dance halls. The kind of glowing glazed ball is fine." Dugu Ruolan said.

"You mean the electric light, it's not impossible." Yuan Shan said casually.

"The kerosene lamp is very profitable now, if we can produce that kind of electric lamp, the rich merchants in Chang'an will definitely pay more money." Dugu Ruolan said.

"What's the problem? I'll study it tomorrow." Yuan Shan said.

Yuanshan knew that it was not impossible to buy some lighting equipment. Mechanical power generation uses magnet friction. The lighting and speaker power system in Chang'an's dance hall is based on this principle. Now artificial power generation is needed every day. Fortunately, there are more power generating units. There is no problem with power supply throughout the day.

They can't get some generating sets in Lanzhou now, it's too troublesome to say it's not applicable.

Today Yuanshan went back to his bedroom to rest alone. He exchanged a box of gold and purchased a solar photovoltaic power generation system, [-] solar crystal panels, and a storage battery capable of storing [-] degrees.

A whole box of gold, worth 30 guan, disappeared in a blink of an eye, and a huge crystal plate appeared in the room.

Yuan Shan called Xue Rengui and Yan Bei over.

"Master, do you mean that we should help these black and shiny boards to the roof?" Yan Bei asked.

"Yeah, tie it firmly. These things are worth 30 guan, so don't make a fuss." Yuan Shan said softly.

"Oh, let's go now." Yan Bei said.

Xue Rengui carried two photovoltaic panels by himself, but Yuan Shan stopped him and said, "Take one by one, there must be no difference in these things."

Xue Rengui benefited and did as Yuan Shan said.

But Yuan Shan started to follow up with this large bundle of wires, and the 300-meter bundle of coiled wires insisted on not being moved, and Xue Rengui came to resist in the end.

The wiring is not complicated at all. The roof of the mansion is flat, with an open terrace on it. The wooden shelf was originally intended to prevent some flowers and plants, but now it has a new function to prevent photovoltaic panels.

Laying according to the plane, the ropes almost covered the entire roof, and the photovoltaic panels were fixed very firmly. Yuan Shan began to connect five of them in series and four in parallel, and then threw the wires to his bedroom with the cooperation of the two. Inside, the battery is connected, and there is no light at night so the photovoltaic panels cannot work.

After the main line is connected, start to connect the sub-lines, which are mainly used for lighting. Yuan Shan is in charge of the main bedroom, and Xue Rengui and Yan Bei are in charge of the hall and kitchen.

Their task was to fix the lamp holder to a high place according to Yuan Shan's request, and then send the wires along the wall to his room.

The ten kilowatt-hour battery can fully meet the lighting needs of the entire mansion if used for lighting, but there are not many of them who need lighting for a few main rooms, and the project will be completed soon.

Unable to avoid the sound of jingling, Yuan Shan went to the bedrooms of several women and did not shy away from connecting the wires and installing the light bulbs.

Chapter 909 Lanzhou Railway

"Husband, what is this, it looks familiar." Dugu Ruolan said.

"This is also a light bulb, similar to what we Yuan used, but it is an energy-saving light bulb, brighter than a warm incandescent light." Yuan Shan.

"So that's the case, but did you prepare for these things, Husband?" Dugu Ruolan asked, she knew how could these things be added out of thin air if she hadn't prepared.

Yuan Shan smiled and said: "Ruolan guessed it right. I usually research it in the attic in the backyard at home, but it won't light up tonight, and it can be used normally after tomorrow."

Dugu Ruolan didn't understand, Yuan Shan didn't explain much.

Installing these things was not easy, and the three of them were so busy that they went back to rest very late.

As soon as Yuan Shan opened his eyes the next day, he saw a group of women surrounding him, staring intently at the head of the bed.

The bedside lamp I exchanged yesterday, the lampshade is made of stained glass, and the lampshade will be colorful when turned on with warm light. I didn't expect to see them admiring this thing early in the morning.

Seeing Yuan Shanhe woke up, Shan Jia said, "Husband, what kind of treasure is that beautiful thing, I have never seen it before."

"When did you come in? I don't know. Don't make a fuss. This is not a simple decoration. It actually emits light. You have seen the glazed lamps in dance halls, but they have different styles. This one is called bedside." The light can be turned on at night for lighting, of course its light is very soft, and it will make people feel more comfortable when turned on lower." Yuan Shan explained.

"It still shines, how can it shine?" Shanjia asked.

"Uh, let me take a look at this." Yuan Shan said.

After getting out of bed, he saw that there was no problem in supplying a lamp with the readings displayed on the battery, so he turned on the power supply and turned on the light. Yuan Shan went to the bedside lamp and twisted it to turn on the lamp.

The girls exclaimed, and Yuwen Linglong exclaimed: "It's on, this light is so beautiful."

Yuan Shan smiled and said, "Go and close the curtain."

Shan Jia followed suit, and the room suddenly became dark, but with the lighting of the bedside lamp, it did not feel dim, and the warm soft light made people feel warm.

Yuan Shan twisted the bedside lamp again, and suddenly guessed that the pattern on the glass was reflected by the light source, and the walls and roof of the entire room were dotted with starlight, which was dazzling.

"Wow, it's so beautiful, it's a star." Shanjia said.

Du Qianyu said calmly and softly: "How can there be stars in the daytime? Husband, what kind of tricks are you doing? I'm afraid it has something to do with this glazed cup."

"Qian Yu is right. In fact, you only need to pay attention to the lighting effect of the dance hall. It is not difficult to guess. See if the light is very dynamic when you move it." Yuan Shan said.

"Husband, I want starlight in my room." Shan Jia said.

Yuan Shan's eyebrows twitched, and then all the girls said, "Husband, please put this bedside lamp in my room."

"Since you like it, everyone has a share, but before receiving the gift, can you give me my clothes first." Yuan Shan said.

It was only when the girls realized this that Qin Si and the others immediately ran out of the room with a cry of surprise.

At this time, Caiyi hurried in and said: "Master, when Duke Lu came, he insisted on asking Xue Rengui to teach him how to fly a glider. Xue Rengui was entangled by Duke Lu and couldn't get away, so he asked Caiyi to ask for instructions."

Yuan Shan smiled bitterly and Cheng Zhijie would not be him until he settled down.

"It's fine if Duke Lu wants to learn how to drive. Let Xue Rengui drive him for a few times. You can tell Rengui to be careful first. If the weather and he personally don't want to drive a glider, he can make arrangements according to his own wishes. If Duke Lu blames him I'll speak for him, and I'll be there in a while." Yuan Shan said.

"Shanjia pulls back the curtain, and everyone helps your husband to dress." Dugu Ruolan ordered.