There were hand-cranked fans, moving miniature steamships, wooden flying wings, and many proportional and very exquisite carriage and house models. Lynn even saw the prototype of a waterwheel in the center of the workshop.
This is a round wooden roulette wheel with a diameter of about 1 meter. Water is constantly flowing down from the reservoir above the workshop, driving the roulette wheel to rotate continuously. It also drives the giant fan in front to rotate slowly, providing a cool breeze for the guests entering the workshop.
What a waste of talent...
Lin En shook his head. This thing could be used to irrigate farmland or even generate electricity, but Lydia only wanted to use it to power the fan.
When Darren saw Lynn shaking his head and sighing, his heart suddenly rose to his throat. Although the little gadgets made by Lydia were very interesting, they were definitely not comparable to the alchemical instruments of the wizards.
Fortunately, Lin En had no intention of keeping us in suspense and spoke directly.
"I am not here to buy any goods this time. Instead, I want you to make something according to the blueprint."
As he spoke, Lin En picked up the model of the steamship and looked at it for a few seconds. The model was very delicate and almost restored in proportion, down to every detail.
From the chimney to the cabin and then to the hull, it was exactly the same as the steamships he had seen at sea, except that there was an extra rope at the back of the cabin, which could drive the propeller below to turn by pulling it.
Almost instantly, Lin En guessed its principle, a smile appeared on the corner of his mouth, and he asked again.
"I heard that Lydia is very skillful and can always make things exactly as required. Is that true?"
"Of course! I dare say that no one in Yieta Harbor has better craftsmanship than Lydia!" Darren said confidently. Even many wizards praised the gadgets made by Lydia after seeing them, which earned her the name of "Skillful Hands".
"Is she in the workshop now?" Lin En put the model aside. "I want to see for myself whether she can meet my requirements."
"No problem, Lydia is busy in the backyard now... I'll take you to find her!" Darren quickly jumped off the stool, hung up a sign for a break, and opened the door to the backyard of the workshop.
Lynn followed Darren in and immediately saw the large aircraft he had seen before. The halfling Lydia he was looking for was standing under the aircraft. She was holding a hammer that was half as long as her body and was hammering several thick iron nails into the wings of the aircraft.
After completing all this, Lydia wiped the sweat from her head, and then pulled the wing hard with her hands. The joints were very strong, but the stability was still a bit poor, which was why some parts of the aircraft fell apart after landing.
The half-orc girl didn't notice the two people coming in at all. Her brows were slightly frowned, and her clothes were already covered with dust, but she didn't care at all. Her mind was full of how to improve this aircraft.
Just then, Lynn's voice suddenly rang out.
"Since the quadrilateral is not stable enough, why not try to add a crossbeam at the diagonal corners to transform it into two triangular structures?"
Lydia was stunned for a moment, then immediately turned her head and found Darren and Lynn standing next to her.
"Master Wizard?" The half-orc girl shouted in surprise and doubt. She quickly recognized Lin En, with whom she had met briefly in the square before.
"You can try it first!" Lin En pointed to the wings of the aircraft and said with a smile.
Lydia was not stage-frightened. She immediately rolled up her sleeves, picked up a piece of wood of suitable size with both hands, and placed it at the diagonals on both sides of the wing. Then she picked up a hammer and nails and started hammering on them.
Lin En was very surprised to see Lydia, who was only about 1.3 meters tall, easily lift a wooden board that was bigger than herself. The rumor that halflings are naturally strong was indeed not exaggerated.
This doesn't conform to biology at all...Lin En took a look at the half-orc girl's arms, which could only be considered "strong", and couldn't help but complain in his heart. Then he directed the other party to build supports in various parts of the aircraft to strengthen the overall structure, and dismantled many unnecessary structures to reduce the weight of the aircraft itself.
Darren also hurried forward to help. After working for a while, the entire aircraft was completely renewed. The wide wings on both sides were connected to the fuselage with a triangular structure. Lydia put her hands on the wings and shook them vigorously a few times, then knocked on them with a hammer, but there was not the slightest deformation.
"This is simply...great!" The joy on Lydia's face was almost overflowing, and then she turned her head to look at Lin En and asked in confusion. "But why is this?"
She also noticed this difference when making those models on weekdays, but she didn't understand why it was like this.
"Because the three sides of the triangle are connected end to end, they form a very stable structure. We can know the answer by doing a force analysis..." As Lin En spoke, he took a few wooden sticks and assembled them into triangles, quadrilaterals, and pentagons. He then pulled any side or corner of the sticks to demonstrate the changes in the forces on these polygons.
Lydia sat on the wing of the aircraft, her bright eyes fixed on the wooden stick in Lin En's hand, like a student listening to a lecture. For a moment, she even forgot that this was only the second time she had met Lin En.
However, Lynn's course was not so easy to understand. There was a wooden stick demonstration in the first half, and Lydia could understand some of it. But she was completely confused by the subsequent explanations of center of gravity, wind resistance, and friction.
Only two conclusions were drawn.
First, the wizard in front of him was very knowledgeable and knew a lot of things. Second, whether the aircraft could fly might be related to these forces...
After talking for a while, Lin En smacked his lips, and the half-orc girl immediately understood, jumped off the wing, ran into the room, took out the kettle, poured a glass of water, handed it to Lin En, and then looked at her eagerly and asked.
"Then Master Wizard, can this aircraft fly now?"
"If you just want to stay in the sky for a while, then there's no problem. But if you want to fly freely in the sky, I'm afraid that won't work!" Lin En shook his head. "The power of this aircraft is too poor, and its appearance and structure don't quite conform to fluid mechanics..."
The half-orc girl looked confused. She could barely understand power, but what was fluid mechanics? In just half an hour, she heard many high-end words that she had never heard of before. Lydia looked like a kitten who saw a plush ball but couldn't scratch it. She looked pitiful.
"Master Wizard?" Darren on the side was a little worried and couldn't help but interrupt. Although he also wanted to hear this knowledge, he knew one thing: all knowledge in the land of wizards is very valuable! Lin En seemed to have just reacted, and a smile appeared on the corner of his mouth. "Sorry, this is a professional problem..."
"I haven't introduced myself yet. My name is Lin En, and I'm the new professor of Olympiad Mathematics at Yieta College!"
"Is he the professor of Olympiad Mathematics who was rumored to have frightened a student to faint on the first day of class?" Darren exclaimed.
The corner of Lynn's mouth twitched involuntarily, and he looked at Darren very 'kindly'.
If you can't speak, then you'd better shut up!
(PS: The data from the first few days of each week are very important, especially for follow-up reading. It is not easy to read a new book, so please support me...) Thanks to book friend dsf23dd for the 1500 starting coins, Yishan Daojun for the 500 starting coins, book friend 20190917071457184 for the 200 starting coins, book friend 20200401113743335, Not a Shota but a Sao Nian, Change Your Name for 100 starting coins, book friend 130329151606684 for the 4 starting coins, book friend 20201103061254610 for the 2 starting coins, (End of this chapter)