Ran Fang and Zhang Liang looked at each other and saw smiles in their eyes.
It was Zhang Liang who took the initiative to explain: "Madam, your Excellency has installed a warm water channel on every floor of this restaurant."
"Knowing that your Excellency is here today, I asked someone to use this warm water channel to see if you are satisfied with the effect."
"Warm water channel?" Xiang Jin was a little confused and didn't understand what they meant.
Seeing that she still didn't understand, Zhang Liang suddenly felt very proud.
He pointed to the exposed pipes in the house and explained: "On each floor, an empty channel is laid. When the weather gets cold, firewood is burned in a fixed place to heat the air. From the channel transmission, the room becomes hot.”
"Then the house will be warm even in winter, and the guests will be very satisfied."
"This is what the adults came up with. I'm afraid there won't be an inn like ours in this city!"
Following what Zhang Liang pointed out, Xiang Jin saw the pipe he was talking about. Then he remembered that he had seen it in the yard before, and thought Ran Fang was studying something else, but he didn't expect it to be this thing.
"I see."
She had said enough compliments, but she couldn't hide the admiration in her eyes.
Ignoring her surprise, Ran Fang looked at Zhang Liang and asked, "Are you ready for what I asked you to do?"
"it is done!"
Xiang Jin looked at them with a somewhat confused expression, but he had no choice but to follow their pace and walk towards a corner on the first floor of the tavern.
When she walked into the house, she seemed to have never seen anything in it before.
Pushing open the door, there is an arc-shaped basin with a hole on the opposite side of the door. There is a cylindrical thing under the basin, which is connected to the ground. There is a wooden box on top of the basin, and there is another box under the box. Something to pull apart.
Zhang Liang stepped forward and pulled the thing open, and several thin streams of water flowed out of it. It looked very magical.
And the water did not fill up the basin, but flowed down the hole in the basin, as if flowing down the pipe.
"Sir, this has been done."
"The pipe of the water tank is left outside. If there is a shortage of water inside, the water will be replenished automatically. Just pay attention to whether the water tank outside is short of water in time."
Before Xiang Jin could figure out what he was going to do, Zhang Liang opened another door next to the table and walked a few steps in.
She saw that there seemed to be a chair inside the door, but the middle of the chair was empty.
The most important thing is that there is a water tank behind the chair. It looks similar to the water tank just now, but it is much smaller than that water tank.
Just when she was stunned, Zhang Liang stepped forward again and pressed some things in the water tank. Suddenly there was a "boom" and the water in the water tank plummeted.
Only then did she see that there was an empty pipe inside the chair, and the water from the water tank just entered the chair, but she didn't know where it ended up.
The water in the water tank slowly filled up again on its own.
"This... is amazing!"
"Ms. sir, what is this?"
Zhang Liang also looked at Ran Fang with burning eyes. He just made these two things according to the instructions given by Ran Fang.
At that time, he also thought it was amazing that there were such things in the world, but he racked his brains and couldn't figure out what these things were used for.
Sensing their doubts, Ran Fang smiled and explained: "This thing is a toilet, a place for going to the toilet."
"Just sit here and press here after using the toilet, and the dirt will flow down together with the water, saving you the need for someone to pour it out."
"The things outside are for washing hands. Wash your hands here after using the toilet, and be quick."
Hearing his explanation, Xiang Jin nodded repeatedly. She was too shocked today.
Before she could open her mouth to praise, Zhang Liang suddenly covered his mouth, bent over, and ran out.
In their uncomprehending eyes, Zhang Liang's vomiting sound could be heard through the wall.
After a while, when Zhang Liang came in and saw Ran Fang's confused look, he didn't know whether he should explain or not.
"What's wrong with you?" Ran Fang took the initiative to ask in concern, "Your face is so pale, but you have been too tired these past few days?"
"If you feel unwell, someone else will take care of this matter. You can rest for a few days."
"No, no need!" Zhang Liang waved his hands quickly. He looked at the toilet, then at Ran Fang, and finally lowered his head and said in a low voice, "My subordinate is fine."
"It's just... I thought this thing was used for washing things. That day..."
"I was really thirsty that day, so I took a few sips of the water in the water tank..."
"But I didn't realize that it was..."
At the end, Zhang Liang couldn't say what he said, but Xiang Jin and Ran Fang both understood what he meant, and there was a hint of smile in their eyes.
Ran Fang stepped forward, patted him on the shoulder, and said with a smile: "It doesn't matter, this is clean water."
"No one has used it yet. Even if you drink it, it will have no effect."
Hearing Ran Fang's words, Zhang Liang covered his mouth and did not dare to look at the toilet at all, "Sir, it's better not to say anything."
"Otherwise... my subordinates won't be able to bear it anymore."
"Okay," Ran Fang took the lead and walked out of the room, holding back his smile.
When she came out, even Xiang Jin had a smile in her eyes. She had completely forgotten the sadness that Xiang Yu and the others had just felt when they left.
Several people laughed for a while, then Xiang Jin remembered and asked with some confusion: "Sir, how can the water be filled by itself?"
Ran Fang paused and explained: "This is a principle called siphon phenomenon. You may not be able to understand what I said."
"Roughly speaking, it is to convert the potential energy of water into kinetic energy, so that the dirt in the toilet will be discharged together with the sewage."
"It uses the pressure difference of the water column to make the water rise and then flow to a lower place. As long as the water here is gone and will not flow to the bottom of the pipe, the water tank outside will automatically flow the water here."
“But make sure there’s more water in the tank there than this one and it’s higher.”
"It's always more convenient to add water outside than to add water inside."
Although Xiang Jin and Zhang Liang didn't understand, they still nodded. Although they didn't understand in their hearts, it was hard to ask anymore questions.
"This... I have never seen these before."
"What kind of spell is this?"
Xiang Jin didn't know how to explain it. After thinking for a while, he could only use magic to explain it all.
Hearing this, Ran Fang smiled, and there was no mockery in that smile.
"This is not magic, this is science."
