The group entered the main gate, Changle and the others took the lead in retreating and went to the backyard to prepare, leaving only Li Yi to accompany Li Er and the others, and even the housekeeper Zhong Yan left. After everyone entered the mansion, they looked around, and they were greeted by a main road four zhang wide, the road surface was milky white, and the whole road surface was smooth and smooth like a huge mirror, and even reflected the facial features of people, reflecting the light of the stars under the sunlight. Willow trees are planted on both sides of the road, casting shadows on the road. In the middle of the road, there are also flower beds of various styles, which divide the main road into two parts, left and right. In the flower bed, all kinds of flowers stand slim and compete with each other.

The main attraction is a huge fountain in the center of the main road, where five huge stone statues stand around the pool, and the top of the middle stone statue erupts from the top of the goddess and the fountain in the shape of a flower is poured on all four sides.

"Is this marble?" Li Er said with some uncertainty. There are also marble floors in the palace, but the marble floors in the palace are not as smooth.

"My father-in-law is really well-informed, this is marble, this time the envoys from various countries came, Lin Jiang found a talent who polishes and polishes stones, especially good at marble, the kid feels that he is actually a talent, so he asked Uncle Lin to take it under his command, but I didn't expect the effect to be good."

Li Yi's words are half-true and half-false, this person does have it, but it is not as divine as Li Yi said, if it weren't for Li Yi to teach some marble polishing and polishing experience in later generations to this person, it would not have reached this level.

Li Er and the others looked at it for a while, they were all amazed, and then everyone continued to walk forward and came to the fountain.

"Yi'er, your fountain is a little interesting!"

Li Er's face was flat, but what he said was somewhat meaningful.

At the beginning, the fountains in Jinling and Pearl Square were built with a huge amount of money, and Li Er was reluctant to build one in the palace, but Li Yi got one at home, how could Li Er not think about it.

Fang Xuanling and the others also looked a little ugly, they also knew the price of building the fountain, but they didn't want Li Yi to be so extravagant. Especially Fang Xuanling, looking at Li Yi's eyes were full of blame.

Seeing this, Li Yi hurriedly explained.

"Father-in-law, don't get me wrong, like the marble floor, my fountain is also an experiment, you may not know that the cost of this fountain is very low, only one percent of the fountain in Pearl Square."

Li Er was stunned for a moment, and then looked at Li Yi in surprise, his eyes also showed a look of hope, he had coveted the fountain for a long time, if this fountain was really like what Li Yi said, wouldn't it .......

Li Yi directly explained the principle. "Father-in-law, the reason why the fountain used to cost so much was that he had to build a pool of water on the roof of a nearby house, create water pressure, and then transport it to the fountain through a long aqueduct, of which, the aqueduct was the most expensive. Unlike this fountain, this fountain is completely self-sufficient, creating a water cycle that eliminates the need for cisterns and pipes......."

This fountain is carefully designed by Li Yi and a group of workers, the secret is on the four stone statues around the pool, these four stone statues are hollow structure, there is a fan blade structure inside, divided into two parts, the left side sucks water from the pool through the vacuum principle, and the right side presses water into the fountain stone statue in the middle through the structure of the fan blade, forming water pressure, making the stone statue in the middle spray water, as for the rotation of the fan blade in the stone statue, it is a simple circular mechanical movement completed by the principle of the waterwheel and the gear structure.

However, this principle is only applicable to small fountains, suitable for home use, if you want to build a large fountain, the best, what can be completed at present, is to use the steam engine, but the development of the steam engine is too complicated, not a short time can be completed, Li Yi is still in the trial stage.

After hearing this, everyone studied around the small fountain, and continued to admire, and the blame of Fang Cai disappeared, replaced by fiery eyes.

After looking at it for a while, everyone retracted their gaze and continued to walk forward.

All the way to the end of the main road, about 100 meters or so, is a peculiar shape of the hall, the hall is made of white stone brick structure, the shape is biased towards the characteristics of the East, but also with some Western characteristics, square structure, green tile and wooden eaves, and the current mainstream hall is very similar, but the wood is replaced by stone bricks, the special thing is that the doors and windows around it, the arched structure used above the main entrance, the window is designed as a floor-to-ceiling window, the width is the normal size, but the length has been changed.

Overall, this hall is a Chinese house with some Western castle features.

Li Yi took Li Er and the others to the main hall for a walk, inside the main hall, in the middle is the street living room that occupies most of the hall, and there are small lounges on both sides for private chat.

"This glass is really a good thing, using glass as a window, the inside of this room is really transparent!"

Wei Zheng stood by the window, looked at it for a long time, and couldn't help but admire.

"Yes, this glass is indeed a good thing, just by virtue of this transparency can be hundreds of times more expensive than glass, it is rare that the cost of this glass is dozens of times cheaper than glass, it is indeed magically tight."

Yan Lide, as the secretary of the Ministry of Industry, is inseparable from the capital when he opens his mouth and closes his mouth.

"In that case, Lide, the windows of the palace are all made of glass, okay?"

Li Er's eyes flashed with golden light.

"No problem, Your Majesty, if the glass is only calculated at cost price, even if all the windows of the current palace are replaced, it will be no problem."

Li Yi was immediately overjoyed, the cost price is not a problem at all, the emperor buys things, it is good to give money, who dares to collect profits?

Out of the main hall, a group of people through the left side of the main hall to the back of the main hall, the same is a jump on the main road, willow trees, flower beds are the same, along the main road forward about 100 meters, you will see a crossroads, at the intersection, is a tall horse galloping stone statue, also made of marble, looks lifelike.

"Father-in-law, the son-in-law's mansion is mainly divided into four parts, with this cross road as the dividing line, the southeast is the backyard and guest rooms, the northeast is the garden garden, the southwest is the entertainment and leisure place, and the northwest is where the servants live, you see, where to go first?"

Li Er's folding fan shook slightly, squinted his eyes and thought about it, and said, "Then let's go to the entertainment and leisure place first!"

Li Yi nodded, and walked to the left side path with a few old people, on the road, there are marble-paved paths, planted with willow trees on both sides, and all kinds of wildflowers are planted in the empty space.

Along the way, Li Er and the others stopped and looked around, feeling that some of them were very novel.