Song Yaoyao collected all the information and then left the house.

When Song Yaoyao came back again, she had brought back 10 tillers and several barrels of oil.

Song Yaoyao asked someone to put the things in her yard, and then went to the study to find Minister Song.

Minister Song has been waiting for his little girl to send him something during this period. He waited and waited but no one showed up, which made him very anxious. The emperor would ask him to go to the imperial study every now and then to ask about the micro-tillage machine.

At this moment, when Minister Song saw Song Yaoyao, his anxious heart finally calmed down.

He suppressed his excitement and asked:

"Yaoyao, why are you here?"

"Dad, I have something I want to present to the emperor. Please take a look first."

"What?"

Song Yaoyao took out the blueprints of the curved plow and waterwheel from her bosom and handed them to Minister Song:

"That's it."

"What's this?"

"Dad, you'll know once you see it."

When Minister Song heard Song Yaoyao say this, he knew that the thing in his hand must be extraordinary, so he lowered his head to look at it. The more he looked, the brighter his eyes became.

After Minister Song read it, he said with trembling hands:

"This thing is really good, Yaoyao, are you going to present this to the emperor?"

Song Yaoyao nodded: "Yes."

Although it was not clearly marked on the drawing, Song Yaoyao still explained:

"One is the blueprint and manufacturing method of the curved plow, and the other is the blueprint and manufacturing method of the waterwheel.

Let’s talk about this curved plow first!

When the curved plow is in operation, the body of the plow can swing, making it maneuverable and convenient for deep plowing. It is also light and flexible, making it easy to turn...

A waterwheel is a tool that mainly uses the power of water flow to drive the waterwheel to rotate, thereby achieving water lifting and irrigation.

Waterwheels are usually built in places with fast-flowing water. When water flows through the waterwheel, it will impact the impeller of the waterwheel (such as a bamboo tube or water bucket).

The kinetic energy of the water flow is transferred to the impeller, causing it to gain energy and start rotating..."

After Song Yaoyao finished explaining, she was very nervous, for fear that her father would ask her where she learned these things.

Song Yaoyao was thinking about it, and if her father asked, she would say it was something she got by chance.

Song Yaoyao lowered her head, waiting for Minister Song's next question, but in the end, he didn't ask anything.

Song Yaoyao didn't hear her father's question for a long time, so she dared to raise her head. She saw that Minister Song was staring at the drawings in his hand and had no intention of asking her at all.

Gua Gua Guo Bo is very good at predicting things. It seems that the god of luck has favored him again this time, and his father will not ask him about the source of things anymore.

Song Yaoyao finally breathed a sigh of relief!

Song Yaoyao tugged at Minister Song's sleeve, and waited for him to raise his head before she continued:

"Dad, I have something to present to the Emperor."

Minister Song was waiting for a moment, and pretended not to understand and asked:

"There's something else? What is it?"

“It’s also a farming tool, but it’s a physical object.

For details, come with me and you will know. The thing is in my yard."

"T."

Minister Song folded up the drawings, put them in his arms, and said:

"Let's go and take a look."

"T."

When Minister Song arrived at Song Yaoyao's yard, he saw 10 micro-tillage machines.

Minister Song asked calmly:

"Yaoyao, what is this?"

“Is this a tiller?”

"Micro-tillage machine? This is the first time Dad has seen it. What is it used for?"

"This micro-tillage machine is a very useful thing. Its function is equivalent to that of a plowing ox..."

Then, Song Yaoyao started talking.

Although Minister Song already knew the function of the micro-tillage machine, he was still excited when he heard about it again.

Song Yaoyao explained while practicing the operation.