Nu Yalang of Tang Dynasty

After Liu Waiquan was over, Zhou Jun rode directly back to Bachuan Villa.

After sending the horse to the concierge, Zhou Jun walked towards Zhongyuan, intending to go to Pang Gong first to report that he was safe.

When he arrived outside the main hall, Zhou Jun explained his purpose to Yuping. The latter went into the room to inform him and then walked out to let him in.

Entering the study, Zhou Jun saw a chessboard on the desk, and Pang Gong and Yin Darong were sitting at the desk talking.

Seeing Zhou Jun walk in, Yin Darong dropped the chess pieces and asked with a smile: "Erlang is back, is it a success?"

Zhou Jun nodded and was about to speak when Pang Gong said: "Since Wei Lei is sitting in seclusion, don't ask anything about him during the game."

Yin Darong smiled bitterly, stopped asking questions, and looked at the chess game again.

Zhou Jun was waiting on the side, not in a hurry, just watching the two of them playing chess.

Yin Darong's chess skills were already a little inferior, and because he was distracted by foreign affairs, he was defeated after only a dozen moves.

Although Pang Gong was playing chess, he was always looking at Zhou Jun from the corner of his eye. Seeing that the latter's expression was light and indifferent from beginning to end, without anger or joy, he praised: "Sad, not resentful, happy, and later he entered the officialdom."

, Erlang needs to hold on to this state of mind and don’t forget it.”

Pang Gong looked at Yin Darong again: "Baojia is also an old man living in the palace. In terms of sitting in seclusion and thinking, it is better to live a young life."

Yin Darong waved his hand and said with a smile: "Our family is just a vulgar family, but it can't compare to the mountains and rivers of Pang Gong."

After saying this, Yin Darong pressed his knees with both hands and tried to stand up. He tried several times, but his face showed pain, and he finally sat back down.

Yin Darong said: "I am old and useless. Now if I want to straighten my legs, it will take a lot of effort."

Pang Gong looked at him and asked, "What's wrong with you?"

Yin Darong pointed to his knees and said: "When I am old, I often kneel down and lie down. I have been there for almost an hour. I am afraid that the bones inside are already cold."

"Now, let alone standing up, just walking normally. If the movements are larger, the pain will be unbearable."

Duke Pang knew that this was a common problem among servants who came out of the palace, so he just shook his head and sighed.

Yin Darong sat down and asked Zhou Jun: "It seems that the small election has passed?"

Zhou Jun nodded first, and then talked about the more important things that happened in Liuwaiquan.

Yin Darong was surprised when he heard that Zhou Jun only took half the time for the calculation test: "Erlang is good at arithmetic. This is the first time our family knows about it."

But Pang Gong heard another thing from Zhou Jun: "Mr. Xu, who was under inspection, suddenly had something to do with the court, and he was replaced by Dr. Chu... Is this really what you said?"

Zhou Jun nodded in agreement.

Pang Gong frowned slightly and said to Zhou Jun: "I know, let's go down and rest first."

Zhou Jun bowed to the two of them and exited the study.

Zhou Jun said goodbye to Yuping and walked in the garden. He recalled everything in the study and had a vague feeling.

Although Pang Gong has become an official, he has always been paying close attention to the affairs of the court.

Zhou Jun thought about it carefully and concluded that Pang Gong was an old man of the Wu family and an uncle of Queen Zhenshun. He said he didn't care about foreign affairs, but he might still have some thoughts about Prince Shou becoming the heir apparent.

Just as he was thinking about this, Zhou Jun walked from the archway of Zhongyuan to the main street of Waiyuan and saw the three father and son of the Qu family walking back from outside.

Zhou Jun walked over and took a look. He didn't see the Fan family who went out with them, so he asked.

Qu Sanweng replied: "The earth and rocks for the Bahe Oil Mill have been raised. All that's left is to set up the machine and the stove. After that, the Fan family has told them that they can take care of themselves."

Zhou Jun nodded and asked again: "Is there any leftover fire clay?"

Qu Sanweng: "It's not all used up, there's still some left."

Zhou Jun asked the Qu family and his son to follow him.

The group of people first came to the pavilion in Zhongyuan where Pang Gong often went to play music.

Zhou Jun pointed to the steps below the pavilion and said: "Pang Gong has inconvenient legs and feet. Every time he goes up and down the pavilion, he needs to be carried by others. I plan to renovate this place."

Qu Sanweng: "I wonder how Erlang plans to change it?"

Zhou Jun picked up a branch and drew an acute-angled triangle on the ground. The longest side was not a straight line, but a zigzag-shaped wavy line.

The Qu family father and son looked at each other in confusion when they saw it. No one knew what it was.

Zhou Jun pointed to the figure on the ground and said: "Use fire clay to build a slope next to the steps. The slope has such a zigzag shape."

Qu Sanweng watched for a while and finally reacted: "I understand. Pang Gong's chariot can pass up and down the slope here. This jagged slope can jam the wheel of the chariot and make it difficult to move."

It’s slippery and takes less effort when going uphill.”

Zhou Jun nodded.

This zigzag-shaped cement slope is actually a common entrance and exit of underground parking garages in previous lives. This design can provide effective friction for tires.

As long as the slope is long enough and the slope is gentle, Yuping can push her wheelchair up and down the pavilion without having to ask for help.

Zhou Jun took the Qu family and his son to the courtyard arch again, pointed to the stone sill on the ground and said: "Lower the height of the stone sill here and build slopes with fire clay on both sides. In this way, Lun Yu will

You can come in and out freely, and people with inconvenient legs and feet don’t have to lift their legs.”

The Qu family father and son nodded and took notes.

Zhou Jun and his party came to Pang Gong's small courtyard again. Yuping saw the four of them and thought something was wrong, so she came over and asked.

Zhou Jun said to Yuping: "Pang Gong's daily travels were inconvenient when he encountered thresholds and steps, so he thought about renovating the courtyard."

Yuping listened and nodded in agreement, but she was also curious.

I saw Zhou Jun coming to the steps in front of the main hall, pointing to the door of the hall and asking Yuping: "Lun Yu comes in and out of here, are you looking for someone to help?"

Yuping nodded and said: "Usually, I go to Buqu's servants to help. One time, Pang Gong couldn't wait any longer, so he got off the wheel and asked me to help him, and he climbed up one step at a time."

"On that one occasion, the moss ground was slippery, and Mr. Pang was careless. He fell and broke his knees."

Zhou Jun nodded and looked at the steps in front of the main hall.

Qu Sanweng came to Zhou Jun's side and said while looking: "Erlang, there are only three steps in the pavilion, but there are eight steps in front of the hall. The height difference is quite large. If we add a slope, it will inevitably

It needs to be cultivated far, and..."

Before he finished speaking, Pang Gong and Yin Darong, who were talking in the room, heard the noise and came to the door of the main hall.

Zhou Jun and the Qu family's father and son saw him and bowed quickly.

When Pang Gong saw several people in the courtyard, he was startled for a moment, and then asked: "What's the matter?"

Yuping walked up the steps and explained to Pang Gong and Yin Darong.

After hearing this, Yin Darong's eyes lit up and he said: "Our family has been wanting to talk about this for a long time. I don't know who built these stone steps in the first place. Every time I go up and down, my knees hurt, and I get flustered from exhaustion.

"

Pang Gong nodded and said: "The stone steps in front of this hall are indeed very inconvenient for travel."

Zhou Jun looked at the steps in front of the hall, thought for a moment and said, "How about building a 'slope' here?"

Everyone was stunned when they heard this.

Qu Sanweng asked Zhou Jun: "Erlang, what is Zhepo?"

The so-called switchback is actually the barrier-free passage at the entrance of the corridor that was often seen in previous lives.

In terms of design, it is similar to an inclined straight slope, folded inward from the middle, forming a "<" shape.

When going up and down in a wheelchair, you can first go up the front half of the slope to a platform, and then turn around and go up the back half of the slope.

This design not only allows wheelchairs to go up and down stairs, but also allows elderly people with weak legs and feet to climb slopes with less effort.

In previous generations of residential areas and public buildings, "slopes" have basically become mandatory barrier-free passages.

As soon as this design was announced, Qu Sanweng clapped his hands and shouted "Hello" first.

Yin Darong smiled and said: "Erlang really has an exquisite heart with seven orifices."

Pang Gong looked at Zhou Jun, as if he were looking at his own son, with a look of relief on his face.