The Ming Dynasty has just been exiled and the Luzon system has awakened.

Apart from these few good items, there is not much else to say about the products in the Miracle Market this week.

A box of cookies, a hundred Yanling knives, and a human-shaped inflatable toy...

This time, Zhu Heyi did not go to the mall directly, but only bought the box of biscuits. The arsenal of Yanling knives can be mass-produced at a much lower cost than here.

As for that inflatable toy?

In order to prevent being eaten by river crabs, I still don’t buy it.

Because of the appearance of the hydroelectric generating unit, Zhu Heyi could not sit still. After a few brief exchanges with the beautiful girls, he stood up and left the office. He wanted to get the electricity out as soon as possible.

But soon, he realized that hydroelectric power was not that easy.

Hydropower generation requires two basic conditions, one is flow, and the other is concentration gap.

As the drainage bay of Bei Lake, an inland lake in Luzon, the flow of the Pasig River is not large, but it is sufficient. The key problem lies in the concentration gap.

Since the terrain is flat, there is naturally no drop in the Pasig River, which means that if he wants the hydroelectric generator to work, he has to dam the river!

Although the Pasig River is not a big river, damming the river is no small project.

Fortunately, the city of Manila can now produce the steel and cement needed to build the dam, and the more than 2 indigenous people captured this time also ensured that there were enough manpower for the project.

Since there were no relevant technical talents, he, His Majesty, the Emperor, could only personally take part in the site selection and construction of the dam. Two days later, Zhu Heyi led a group of people to finalize the site selection and construction on the upper reaches of the Pasig River, more than 10 kilometers away from Manila City. Dam site.

"That's it! Before the dam is officially built, you need to dig a channel for drainage on both sides of the mountains so that the main river can be drained to expose the river bed for building the dam."

"But don't dig this drainage channel too wide. When the embankment is completed and this side cannot be blocked, then there will be trouble."

Zhu Heyi pointed at the mountains on both sides of the river and said, while a group of soldiers behind him immediately took out small notebooks and wrote down the key points that His Majesty the Emperor said.

In fact, it is more suitable to use tunnels for the drainage channels on both sides of the river, because once the dam construction is completed, the tunnel mountains only need to be blown down to successfully seal the tunnel.

But with current technology, digging tunnels is more difficult than building dams, so we can only resort to digging drainage channels to drain water.

Considering that the flow of one drainage channel is too large and may not be blocked by then, we might as well just dig two, one on each side of the river.

In addition, this time Zhu Heyi did not leave the work of building the dam to Xu Jingming, but instead transferred a group of soldiers from the army to take charge.

First of all, the water conservancy project has a lot to do with it, and he does not feel comfortable leaving this matter to people other than system warriors.

Another point is that the work of building the dam this time will be undertaken by the group of prisoners who have just been escorted back. There will also be troops stationed here. If others come, they may not be able to suppress it.

A few days later, the Pasig River water conservancy project started smoothly, and the establishment of basic power grids was also carried out simultaneously.

Because the system does not provide wires, you have to provide the wires yourself.

There are no more choices for wire materials. Iron wire is too heavy and has poor conductivity.Copper wire is too expensive and the cost is too high.Therefore, the only choice is steel core aluminum stranded wire, which is also the main material of high-voltage wires in later generations.

An aluminum mine was discovered not long ago. Although the reserves are not large, it is still no problem to just build some wires.

……

In the office, Zhu Heyi picked up a bottle of light blue perfume on the table, placed it in front of his eyes and shook it gently.The gilt quicksand in the bottle gently blooms in the light as the liquid sloshes.

I have to say that this perfume is really good-looking, even a guy like me can't help but be attracted to it.

He turned around, and as expected, his four maids were staring at the bottle of perfume in his hand.

It seems that no matter what era women have no resistance to anything shiny.

Seeing the bewildered expressions on the maids' faces, Zhu Heyi chuckled softly and said, "Come back to your senses soon, your eyes are all in."

"Ah, I'm rude, I hope your majesty will forgive you." The four girls were brought back to their senses by Zhu Heyu's voice and said quickly.

"Okay, why don't you forgive your sins? There are no outsiders here, so stop pretending."

The youngest Yinxiang stuck out her tongue when she heard Zhu Heyu's words, while the other three older girls blushed slightly.

After spending time with Zhu Heyu, they also discovered that the emperor in front of them was not only gentle with others, but also did not have the arrogance of those officials. Therefore, when they usually got along with Zhu Heyu, they were less cautious. More easy-going.

Of course, this is without outsiders.

Puru said that the prince and his father-in-law taught them more than once to always pay attention to their manners and show their royal style. Even if they are just maids now, who can say for sure what will happen in the future?

Zhu Heyi did not notice the expressions of the girls. He stared at the bottle of perfume in front of him and asked: "What do you think we should price when selling such a bottle of perfume to those Europeans?"

Upon hearing Zhu Heyu's inquiry, the girls all started thinking.

"Otherwise, let's price it at ten taels of silver a bottle. The monthly silver my father gave me every month was ten taels of silver. Those European aristocratic ladies should be willing to spend so much money to buy a bottle of such a beautiful perfume." The dignified girl Xixi said.

Hearing this, Zhu Heyi did not answer but nodded slightly, but he did not expect that Xixi, a girl, was actually a rich young woman.

Two months of silver every month!This is several times the salary of factory workers!

"It's so expensive! The monthly money His Majesty gives us is only 5 taels. If this is the case, we can hardly afford it." Yinxiang pouted with regret.

The little girl's expression amused Zhu Heyi. He couldn't help but stretched out his hand to scratch Yinxiang Qiong's nose and said, "Stop being so cute. You don't need to buy it. From now on, I will give you a bottle every month."

Zhu Heyu's action made Yinxiang's face turn red instantly. The little girl almost buried her head in her breasts like a frightened quail, leaving only her little hands with no place to rest, rubbing the corners of her clothes.

Unexpectedly, the little girl who was usually the most lively could be shy so easily. Seeing the blush spreading to the base of her ears, Zhu Heyi couldn't bear to tease her any more.

"Your Majesty, I think we can price a bottle of one thousand taels of silver!" This time it was Xue Wen who was usually the quietest person who spoke, but as soon as she finished speaking, she immediately attracted everyone's attention.

……