The weather is slightly cool, the flowers and grass on the roadside are covered with crystal dew, and fallen leaves of various colors are piled under the trees, like a thick carpet.
The Furong Garden in the southeast of Chang'an City was the royal forest garden of the former Sui and Yu dynasties. It is located on the south bank of Qujiang Pool, covering an area of more than 30 hectares, close to Chang'an Waiguo City, and surrounded by high walls.
It has to be said that although the emperors of the former Sui Dynasty were arrogant and extravagant, their aesthetic standards were still online. They built countless palaces in Furong Garden one after another, with ten steps to the first floor and five steps to the pavilion.
There are dancing pavilions and rockeries in a patchwork manner. Every time you take a few steps, you can enjoy a completely different scenery. It’s no wonder that Furong Garden is the busiest and most visited attraction in Chang’an. .
However, Bian Chenpei, who was sitting on top of the pavilion, had no intention of enjoying the scenery.
He sat with a group of Taihao Mountain disciples, looking through the window at the noisy and lively crowd below, unconsciously wiping a waist badge back and forth in his hand——
The outer part of Furong Garden is open to the citizens of Chang'an, but there are several forbidden gardens of different levels inside, and you need to hold tokens of different levels to enter them.
At this moment, those standing below are students from all over the world.
In the distance, more noisy voices can be faintly heard.
The news of Li Ang's bet with visitors from Taihao Mountain spread out somehow.
How could foreign students participating in academic exchanges miss such a wonderful show?
And those Chang'an citizens who had a high level of trust in the Academy and Li Ang, after hearing about this incident, spontaneously came to Furong Garden to join in the fun and treat it as an autumn outing.
After going back and forth, it turned out to be more lively than a holiday.
If you look outside the wall, you can even see vendors setting up stalls and selling meals, snacks, candies and toys.
Bian Chenpei's face was a little ugly. In Zhou Kingdom and Taihao Mountain, he had always been the protagonist who was admired by all the stars. He had been treated like this before.
These Yu people...
"Why aren't the people from the Academy here yet?"
A disciple from Mount Taihao couldn't help but ask: "Where is the promised hour at Sichu?"
Another person said: "Wait a little longer, the Haotian bell hasn't sounded yet."
Before he finished speaking, there was a burst of noise from downstairs.
Bian Chenpei immediately stood up and looked down, and sure enough he saw the people from the academy walking towards the entrance of the garden.
The leader was Chen Danqiu, the academy's wine minister. He took the lead and walked at the front, followed by Su Feng, a doctor of science, and Tantai Leshan, the Fu Xue division, and behind him were a group of academy teachers and teaching assistants.
Li Ang walked in the middle of the team, with a faint smile on his face, followed by a row of flat carriages, each of which was wrapped in a thick layer of cloth.
Through the fabric, the convex shape of the goods can be vaguely seen.
It's really here.
Bian Chenpei pursed his lips slightly, his heart tightened involuntarily, and a trace of regret flashed in his heart.
"Let's go down."
Yu Feiyu, who had been reading the Haotian classics in the corner, stood up and led the Taihaoshan students down the pavilion. He frowned slightly and stepped forward to greet everyone in the school palace.
"Chen Jijiu."
"Special Envoy Yu."
Chen Danqiu and Yu Feiyu greeted each other lukewarmly and explained casually, "This model aircraft was built by the Academy at a considerable amount of manpower and material resources, so we found more carriages and escorted it here."
"Um."
Yu Feiyu had no intention of talking more, "Then let's get started?"
"good."
Chen Danqiu turned his head and looked at Su Feng. Su Feng nodded, called to his disciples, and took off the cloth packaging from the carriage, revealing the parts.
————
"Is that the model aircraft newly developed by the Academy that can carry people?"
In the palace pavilion of Furong Garden in the distance, Emperor Yu leaned on the guardrail, holding the "telescope" recently enshrined by Luli Academy, and looked into the distance.
"Let me see."
Next to him, Queen Xue, who was holding her young adopted daughter, was also holding another, smaller and more exquisite binocular telescope with a thin gold chain, looking into the distance.
"Mom, I want to see it too."
The little princess in the queen's arms stretched out her fleshy palms, and the queen had no choice but to hold her higher. The mother and daughter each used one side of the telescope to look into the distance.
At this moment, the emperor's family, which ruled the 40 million people of the Yu Kingdom, was just like an ordinary family of three traveling in late autumn, happy and ordinary.
Li Leling and the other princes and princesses were sitting around the stove in the pavilion, watching this scene with a smile. The irritability and depression in my heart caused by the recent Tianchaotang turmoil have subsided a lot.
"That's right Leling."
An older princess smiled and said, "Why don't you go down and have a look? There is your Mr. Li Xiaolang over there."
"Sister, what are you talking about?"
Li Leling's face turned red, she subconsciously shrank her neck, and looked cautiously at Emperor Yu.
After confirming that his parents didn't hear, he smacked his lips, took out a small telescope from his arms, and looked into the distance.
In the Furong Garden, the disciples of the Academy moved pieces of parts from the carriage.
Li Ang took a step forward, took a deep breath, squatted on the ground and quickly assembled it.
He connected hollow, thin metal tubes with grooves and threads to each other, and installed cranks, flywheels, chainrings, chains, seats, pedals...
Soon, a strange-looking machine was built.
It has a seat at the back, a rudder that you can hold in front, and a huge metal propeller blade connected to the top of the back.
It looks a bit like a hydraulic millstone.
"Mechanical structure..."
Li Leling frowned slightly. In science class, they had learned the structural principles of hydraulic grinding discs and seen the delicate and complicated gear sets.
The hydraulic millstone uses water flow to rotate the water wheel shaft and rotates the millstone through gears, converting vertical circular motion into horizontal circular motion.
The machine seemed to use a chain to convert the circular motion acting on the pedals and chainrings into the circular motion of the propeller.
After the core power part was assembled, Li Ang and others began to assemble other parts.
The first is the wing. The wingspan on both sides is close to an exaggerated thirty meters. The leading edge is a tubular spar, and in the middle is a rib composed of light wood and metal wires, wrapped with a layer of thick paper.
At regular intervals, wires run from the spar to the central main column to relieve weight pressure.
Behind the central main column are propeller blades, below is a bicycle structure that serves as a cab and vertical tail, in front is a metal mast, and at the other end of the mast is a smaller horizontal tail.
The entire aircraft, when viewed from above, looks like an "I" shape.
The students around looked at this strange-looking aircraft and couldn't help but talk about it.
"Can this fly?"
"I understand the logic, but why are the wings so big?"
"What is the lift coefficient formula mentioned in science class? The larger the wing area, the greater the lift coefficient..."
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