I am the cook, but I am Li Er's son-in-law

The bet is finalized.

Li Shu led her maid back to the palace, and she wanted to pick the strongest person, even if the opponent was a little girl like Yin Lulu.

The little girl would always get up in weird ways, like arguing whose brother could eat pickled food better, and they would quarrel until the brother under discussion came forward in person and said that he didn't dare.

Li Lizhi was a little disappointed.

She is also planning to join hands with Yin Lulu to draw a turtle on the face of her clever younger sister.

Why did he run away.

After Li Shu left, Yin Lulu reacted belatedly. She raised her head and looked at Yin Xuan pitifully, ready to cry at any time: "Brother, I don't want to compare my strength with others."

"How could I be better than that!"

Yin Lulu knew how weak she was, she couldn't even resist Wang's rubbing her face, let alone compete with others.

Yin Xuan shook his head, and patted Yin Lulu's head: "Don't worry, brother can still trick you? I don't want to be an official in the court."

Yin Lulu tilted her head, looked at Yin Xuan hesitantly, swallowed her saliva, and muttered a few words that others could not hear.

Li Shu returns to the palace.

Yin Xuan naturally had to make some preparations.

Although he doesn't know carpentry crafts, he knows pulleys. When he was studying physics when he was a child, he was taken by the physics teacher to make this thing. Then... as the representative of the math class, he was hung by the physics teacher on the playground behind the school. on the tree, showing a whole lesson!

The knife in his hand cuts iron like mud, and it is more than enough to file a few pieces of wood.

A large pulley block was quickly made.

Yin Xuan was satisfied and hung it on the beam of his house.

Then I went outside to look for a huge bluestone half a person's height—when Yin Xuan tried to see if he could lift it up, he found that he could do it easily, moving such a stone, and It's as easy as moving a table.

Cooking makes you strong.

After moving it back, Yin Lulu and Li Lizhi were dumbfounded.

Such a big stone, just hugged it back?
Yin Xuan didn't care about their gazes, and tried the roller skating set carefully, and it worked, no matter whether it was made by himself or the beams of his own house, they were quite strong.

After he finished all this work, Li Shu also came over with a tall and thick man.

He was dressed in military armor, with a sword at his waist.

There was still some resentment on his face.

He was naturally very happy when the princess asked him to do something, but when he knew that he was going to compete with a little girl, he felt very aggrieved.

I am dignified and grow straight from the seventh-rank right prison gate, just to bully the little girl?
Considering that Li Shu's reputation in the palace has always been good, and she is also a princess favored by His Majesty, the right prison gate chief still reluctantly agreed.

"Shopkeeper, I brought someone here, are you ready?" Li Shu just stepped into the restaurant, before seeing the bluestone under her feet, she couldn't wait to yell.

Yin Xuan nodded: "I'm ready."

Then he brought out Yin Lulu who was hiding behind him.

Yin Lulu muttered, if she hadn't scolded people, her brother would have beaten her up, and when her mother came back, she would have been beaten up again by her mother, so she would definitely start cursing.

Li Shu noticed the bluestone in the room and raised her eyebrows: "The competition is here to move this thing?"

Yin Xuan nodded.

There is a rope tied to the bluestone, and the rope is connected to the beam, as if it is connected to something in series.

However, Li Shu didn't take these things to heart.

Although there are things related to levers recorded in the Mojing, those things only talk about levers with equal arms and unequal arms, scales, and balances.

The great thing is that the fixed pulley can be thought of, but the fixed pulley can only change the direction of the force, and cannot save the force output by the user.

"Is that the shop owner, you come first, or I come first?" Li Shu asked.

Yin Xuan narrowed his eyes and smiled, waved his hands: "You come first."

Li Shu greeted the man behind her.

The big man stepped forward, rubbed his fists, took a deep breath, yelled, and exerted strength from his waist and abdomen at the same time. The bluestone, which was half a person's height, trembled slightly, and then he lifted it up.

But he didn't lift it very high, it was only about an ankle distance from the ground, and he couldn't lift it up no matter how hard it was, and it hit the ground with a bang.

Yin Xuan was a little surprised.

Although he carried it effortlessly, the stone weighed more than 500 catties, to say the least.It's not a backlift, it's not a pull, it's a hard pull.
Is a good guy.

Li Shu snorted complacently: "Shopkeeper, it's your turn."

Yin Xuan beckoned Yin Lulu to come over, and asked her to grab one end of the rope and run into the backyard.

As the rope was straightened, Yin Lulu's running speed slowed down - it was somewhat strenuous for her, but it was not a problem to pull an object equivalent to more than ten kilograms.

The blue stone wobbled off the ground, and then got higher and higher from the ground, soon surpassing the distance that the big man could lift.

The big man watched this scene in astonishment.

It is a bit of a strenuous task for me, a little girl, who is not as tall as her own waist, can do it to this extent?
"Okay, stop Lulu." Yin Xuan yelled into the backyard.

With a bang, the bluestone fell to the ground, splashing a burst of smoke and dust.

Yin Lulu's face was flushed, and she ran over from the backyard covered in sweat, blinking her big eyes and looking at her brother: "How is it, did the rock get up just now?"

Yin Xuan nodded, and patted Yin Lulu's head: "Get up, you did a great job!"

"You don't have to study this afternoon and have a good rest."

Yin Lulu suddenly cheered.

Li Shu was still standing there in a daze, a little unbelievable that she lost?

The man's face turned green.

Originally, being called by the princess to compete with a little girl already made him feel a little uncomfortable, but to lose to this little girl made him feel even more mixed.

After Yin Xuan finished praising Yin Lulu, he planned to move the bluestone to the backyard, but it would not look good at all in the lobby.

The big man muttered: "It's just a trick, if it's on the battlefield, who will give it a chance to use it."

Before he finished speaking, he saw Yin Xuan almost raised the bluestone with one hand, his face remained unchanged, he lifted the weight lightly, and turned to look at him: "What did you say?"

The man opened his mouth wide, his eyes stared like copper bells, and he couldn't release the shrewdness of lightning at all.

Yin Xuan really didn't hear clearly.

Seeing that the man stopped talking, he didn't ask any further questions, and threw the bluestone into the backyard without hesitation.

There was a loud noise, which woke Li Shu up in fright.

After losing, she was not discouraged, but became more interested.