Yu Nanqing frowned; he had seen wheelchairs before.
That's not how it works.
The wheelchair does have two large wheels, but there's no seat. There are only two large wheels tightly packed together, with many gears sandwiched between them, making it look a bit like a mechanism at first glance.
Su Wanyan quickly raised her hand and instructed, "Try it out quickly."
"Yes." Niu Da stood up, grabbed the handles at the back of the wheelchair with both hands, and stepped on a small wooden mechanism next to the large wheel with one foot. The wheelchair suddenly opened to both sides.
Reach out and press the button on the push handle, and the two large wheelchairs slowly land on the ground.
Su Wanyan exclaimed, "Wonderful!"
"Your Highness, Your Majesty, please look."
Niu Da pointed to the round wooden board below the gear, which resembled a waterwheel, and then demonstrated by pressing the button on the left armrest and shaking the lever on the right armrest. Suddenly, the wheelchair rose up, and the waterwheel-shaped board below began to roll.
With each shake, it rolls once, the sturdy wooden planks flexibly adhering to the ground, rolling steadily forward.
Press the button again, and the two large wheels touch the ground, stopping the waterwheel-like rollers from turning.
Niu Da bowed respectfully: "As Your Majesty requests, the rollers below will allow even a person in a wheelchair to easily ascend the steps and descend. The mechanism here will keep the wheelchair balanced."
"Won't it tilt?"
"Your Majesty, rest assured, when encountering steps, the rollers will gradually touch the ground, adapting to the terrain. I have already tested it after it was made, and I guarantee there will be no problems."
Niu Dalian spoke with pride as he finished making this piece.
When Su Wanyan found him, she told him about her request to have a wheelchair made.
It is said that this wheelchair should not only be foldable so that subordinates can easily carry it, but also be able to climb up stairs step by step.
This request stumped Niu Da. He was initially reluctant to accept it, but Su Wanyan gave him a huge sum of money, and when he heard that she was the Princess Consort of Prince Gong, he gritted his teeth and accepted it.
Because of this wheelchair, he hasn't slept for several nights, studying it day and night, racking his brains.
Actually, Su Wanyan didn't expect him to be able to do it, but when she was in modern times, hadn't she heard that the wisdom of the ancients was endless?
Many intangible cultural heritages originated from the ancients and cannot be replicated even with modern technology.
So, with a "let's give it a try" attitude, she exaggerated the difficulties of using the wheelchair and made many demands.
She was also thinking that if it wasn't finished before the Ksitigarbha Festival, she would ask her master to rush out a regular one to use in the meantime.
To her surprise, Niu Da actually made it.
"Okay." Hearing Niu Da's assurance, Su Wanyan looked at Yu Nanqing: "Yu Nanqing, would you like to come for a walk around the mansion with me?"
Yu Nanqing's heart skipped a beat. He looked at Su Wanyan, his beautiful long eyes filled with disbelief.
Even though he knew what Su Wanyan wanted to do from the moment he saw the wheelchair, his heart still pounded violently when he heard Su Wanyan say this.
He spent three years... to be precise, three years and three months lying in bed.
He hadn't experienced what the outside world was like for a long time.
Sunlight streams in through the window every day, but he has forgotten what it feels like to have it on his skin.
Yu Nanqing's hands trembled slightly as he stared blankly at Su Wanyan, momentarily forgetting to react.
Such an expression was all too obvious to Su Wanyan. She smiled, revealing her white teeth, moved the table in front of the bed aside, and pushed the wheelchair in front of Yu Nanqing.
She reached out and let Yu Nanqing put his hand on her shoulder, preparing to carry him onto the wheelchair.
Before carrying him on my back, I instructed him, "I can only exert force for that one instant, so don't move around, okay?"
Yu Nanqing is nearly 1.9 meters tall, while Su Wanyan is only about 1.65 meters tall, so it is impossible for her to carry Yu Nanqing on her back. Even though Yu Nanqing is now as thin as a paper doll, he is still too heavy for a girl.
Therefore, she could only exert force in that instant to quickly move Yu Nanqing into the wheelchair; if she carried him for any longer, she would not be able to carry him.
Yu Nanqing pursed his lips and remained silent. His chest pressed tightly against Su Wanyan's back, and he felt a surge of heat coursing through his body, as if he were on fire, and his blood was boiling.
Yu Nanqing couldn't tell whether it was because of his excitement or because of Su Wanyan's action.
Before he could think any further, Su Wanyan suddenly hoisted him onto her back, and in an instant, he was sitting steadily in the wheelchair.
He then noticed that there was a soft cushion on the wheelchair seat.
Because Su Wanyan practically flung him over, Yu Nanqing's body tilted slightly. Just as Su Wanyan was about to straighten him, she saw that Yu Nanqing had already grabbed the armrests with both hands: "I...I'll do it!"
Yu Nanqing felt inexplicably nervous, as if her heart was about to jump out of her chest.
He had to restrain himself and try his best to suppress these emotions.
Su Wanyan placed his feet on the footrest, looked him over, and smiled, "Not bad, not bad, very satisfied, just a little small."
It's not that the wheelchair is too small, it's that Yu Nanqing is too tall.
She looked up at Niu Da and laughed, "Use this for now. Master Niu, could you make a bigger one? Of course, at the same price I gave you before."
Upon hearing this, Niu Da's eyes lit up, and he repeatedly replied, "Yes! Yes! As long as Your Majesty commands, this humble subject will do his utmost."
"Hmm." Su Wanyan smiled as she looked at the wheelchair in front of her, then looked up and said, "You go back and rest first. I have a few small requests to make, and I'll talk to you about them later."
"Yes! Yes!" Su Wanyan gave a full ten taels of silver for a wheelchair. No matter how many times he requested it, even if it was 10 or 20 o'clock, he would make it for him without sleeping.
In less than half a month, he had twenty taels of silver.
In the past, Niu Da would never have dared to dream of such a thing. As a carpenter, he only earned two or three coins per table when making tables and chairs, and at least one coin per table. Wasn't the money Su Wanyan paid a huge sum of money for him?
Niu Da was overjoyed. He bid farewell to Su Wanyan and left the palace with a happy heart.
Su Wanyan was also happy. She pushed Yu Nanqing towards the door. There was a threshold at the door. Su Wanyan paused slightly, even more impatient than Yu Nanqing: "Press it and see how it works."
A barely perceptible glint flashed in Yu Nanqing's eyes as he suppressed his excitement and pressed a button on the left armrest.
Then you could see that the entire wheelchair had risen a few inches.
Then, crank the lever on the right armrest. The roller slowly moves forward, flexibly creating a concave shape at the threshold. Once past the threshold, it returns to a flat surface.
Once you reach the bottom of the steps, a mechanism supports the wheelchair from the front, keeping it balanced. You can then crank a lever to slowly move the wheelchair down the steps.
"Wonderful! Wonderful!" Su Wanyan couldn't stop smiling.
She suddenly remembered that the rollers underneath looked a bit like the wheels of a modern excavator.
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