I made science magic

There were hand-cranked fans, moving miniature steamships, wooden flying wings, and many proportioned and exquisite carriages and house models. Linn even saw the prototype of a waterwheel in the center of the workshop.

This is a round wooden wheel with a diameter of about 1 meter. There is water flowing down from the reservoir above the workshop, driving the wheel to rotate continuously and also driving the giant fan in front.

It rotates slowly to provide a cool breeze for guests entering the workshop.

It's really overkill...

Linn shook his head. This thing could be used to irrigate farmland and even generate electricity, but Lydia only wanted to use it to power fans.

Darren's heart suddenly rose to his throat when he saw Lynn shaking his head and sighing. Although the gadgets made by Lydia were very interesting, they were definitely not comparable to the alchemy tools of wizards.

Fortunately, Lin En didn't mean to show off, and spoke directly.

"I'm not here to buy goods, but to ask you to make something according to the drawings."

As he spoke, Linn picked up the model of the steamship and took a look at it. The model was very exquisite, almost restored to the same proportions, 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. It was just that there was an extra rope behind the cabin. Just pulling it could drive the propeller below to rotate.

Almost instantly, Lin En guessed its principle, and with a smile on his lips, he asked again.

"I heard that Lydia has very skillful hands and can always make items exactly as required. Is that true?"

"Of course, I dare say that in this Iyetta seaport, no one has better craftsmanship than Lydia!" Darren said very confidently, and even many wizards had seen the little craftsmanship made by Lydia.

After the toy was praised, it became known as "Skilled Hands".

"Is she in the workshop now?" Linn put the model aside, "I want to see for myself whether she can meet my requirements."

"No problem, Lidya is busy in the backyard right now...I'll take you to find her!" Darren quickly jumped off the stool, hung up the rest sign, and opened the door to the backyard of the workshop.

.

Lin followed Darren and walked in, and immediately saw the large aircraft he had seen before. The halfling Lydia he was looking for was standing under the aircraft at the moment, holding a hand that was half her body.

Such a long hammer smashed several thick iron nails into the wings of the aircraft.

After finishing all this, Lidya wiped the sweat on her head, and then pulled the wings hard with her hands. The connection was very strong, but the stability was still a little worse. This is why the aircraft was a little unstable after landing.

The reason why the parts fell apart directly.

The halfling girl didn't notice the two people who entered the door at all. She frowned slightly and her robes were already stained with dirt. But she didn't care at all. Her mind was filled with how to improve the aircraft.

At this moment, Lin En's voice suddenly sounded.

"Since the quadrilateral is not stable enough, why not try to add a beam at diagonally opposite corners and transform it into two triangular structures?"

Lydia was stunned for a moment, then immediately turned her head, only to realize that Darren and Lynn were standing next to her.

"Master Wizard?" the halfling girl shouted in surprise. She quickly recognized Linn, who had met briefly in the square before.

"You can give it a try first!" Linn pointed at the wings of the aircraft and said with a smile.

Lidya was not afraid of the stage. She pulled up her sleeves, grabbed a piece of wood of suitable size with both hands, and placed it at the diagonal corners on both sides of the wing. Then she picked up the hammer and nails, clang clang.

He kept knocking.

Such great strength...

Linn was very surprised to see Lydia, who was only about 1.3 meters tall, easily lift a wooden board that was probably bigger than herself. The rumors that halflings are born with great strength were indeed not false.

This is not biological at all... Lin En looked at the halfling girl's arm that could only be considered "strong", couldn't help but complained in her heart, and then directed the other party to build brackets on various parts of the aircraft.

The overall structure is reinforced and many unnecessary structures are removed, reducing the weight of the body itself.

Darren also hurried forward to help. After working for a while, the entire aircraft took on a new look. The wide wings on both sides were connected to the fuselage in a triangular structure. Lydia put her hands on the wings and shook them hard a few times.

Next, I hit it with a hammer, but there was no deformation at all.

"This is simply... great!" The joy on Lydia's face almost overflowed. Then she turned to look at Linn 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 happened.

"Because the three sides of the triangle are connected end to end, forming a very stable structure. Just do a force analysis and you will know..." As Lin En said, he took a few wooden strips and assembled them into a triangle.

, quadrilaterals and pentagons, and then drag any of their sides and any corners to demonstrate the stress changes of these polygons.

Lydia sat on the wing of the aircraft, her bright eyes staring at the wooden stick in Linn's hand, like a student attending a lecture. For a moment, she forgot that Linn in front of her was only meeting her for the second time.

That’s all.

However, Linn's course was not that easy to understand. In the first half, there was a wooden bar demonstration, and Lidya could still understand it a little. After that, she was confused by the explanations about the center of gravity, wind resistance, and friction.

Only two conclusions were drawn.

First, the wizard in front of me is very knowledgeable and knows a lot of things. Second, whether the aircraft can fly may have something to do with these forces...

After talking for a while, Lin En smacked his lips. The halfling girl immediately understood, jumped off the wing, ran to the room, fetched a kettle, poured a glass of water, and handed it to Lin En's hand.

Go up, then look at the other party eagerly, and ask.

"Then Master Wizard, can this aircraft fly now?"

"If you just want to stay in the sky for a while, that's no problem, but if you mean flying freely in the sky, I'm afraid it won't work!" Lin En shook his head, "The power of this aircraft is too poor, and its appearance and structure

It’s also not very consistent with fluid mechanics…”

The halfling girl looked confused. She could barely understand the dynamics, but what was fluid mechanics?

In just half an hour, she heard many high-end words that she had never heard before. Lydia looked like a kitten that saw a stuffed 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 truth. In the land of wizards, all knowledge is very valuable!

Lin En seemed to have just reversed the situation, and smiled at the corner of his mouth. "Sorry, this is a professional fault..."

"Not introduced yet, my name is Lin En, I am the new Olympiad mathematics professor at Iyeta College!"

"Is he the rumored Olympiad professor who scared a student to faint on the first day of class?" Darren exclaimed.

The corner of Linn's mouth twitched involuntarily, and she looked at Darren with a very 'kind' look.

If you can't speak, you'd better shut up!

(ps: The data in the first few days of each week is very important, especially for reading. New books are not easy to come by. Please support me...)