Even as a science student, Gu Lan said he was not interested.

If it weren't for exams in the previous life, and system rewards in this life... I would never have anything to do with such agricultural classics!

"My husband, you are back." Mu Yuyan came back from the book, raised her delicate little face, looked back at Gu Lan, and murmured: "I was cleaning the study room for my husband today and accidentally knocked down this book. I saw

There were some strange pictures in it, so I couldn't help but pick it up and look at it for a while...

Can I read this book?"

Her smart eyes blinked and she pursed her red lips and asked.

It seems that he is afraid that this book will touch Gu Lan's privacy.

"Of course." Gu Lan lovingly rubbed her black hair and said with a gentle smile, "The writing is for others to see. If you don't understand, you can ask me."

Talking about the classics of past lives, my husband, I still know something, although not much...

"Thank you sir."

Mu Yuyan thought for a moment, turned to a page of drawings from the book, and asked softly: "Can you tell me what this "big wheel" is?"

Gu Lan looked down.

It turns out that the drawing was a waterwheel model that I drew in my spare time.

Next to it, he quoted from his work and made a note: "If the land is high, water trucks can be used to raise it, and irrigation is very convenient."

"This is called a water wheel, also called a barrel wheel. It is an irrigation tool built on the river."

Gu Lan described: "It can use the water flow, save manpower, and directly lead the river water to the fields."

"Save manpower? Is it a magical method?"

Mu Yuyan asked confused.

She didn't know what it meant to use water flow.

But there is indeed magic in this world that can move mountains and fill seas.

However, when monks reach this level, they will definitely not use their magical skills for such trivial matters as farmland irrigation.

"It's not a magical method, it can be done by ordinary people."

Gu Lan shook his head, smiled, and explained patiently.

"This water wheel is fixed on the river. The river pushes forward, driving the water wheel to rotate. There are some wooden tubes fixed on the water wheel. It can be filled with water at low places and brought to high places to flow down along the wooden trough.

Flows into the distant fields..."

Gu Lan pointed at the waterwheel on the drawing, wrote and drew, and gave a classy lecture.

Mu Yuyan leaned her head close to Gu Lan's shoulder and listened carefully. Her pretty face was full of curiosity, just like the fair-skinned and beautiful school belle in her previous life.

moment.

Before Gu Lan finished explaining the principles of kinetic and potential energy, Mu Yuyan suddenly understood.

With her IQ, it would be easy to understand simple farm tools as long as she explains it once.

It's just that such a novel tool is something she has never heard of or seen before!

"Ms. sir, how did you come up with such an ingenious tool?!" Mu Yuyan was very surprised and stared at Gu Lan with interest.

This mysterious and charming man... always brings surprises.

"Is this... clever?"

Gu Lan raised his eyebrows and asked a question.

Mu Yuyan: "???"

"It allows mortals to cross the gap between immortals and mortals and do things that ordinary monks cannot do... Isn't this clever enough?"

Mu Yuyan's beautiful eyes were astonished.

In her opinion, this kind of tool is simply ingenious. After all, there has never been a mortal artifact in the world that can replace the magic of immortality!

But Gu Lan's eyes looked so bland that the Empress even lost her confidence!

It seems that the fairy magic in the fantasy world has restricted the development of scientific and technological civilization to a certain extent... Gu Lan said that the five thousand years of labor wisdom of my hometown are only the most primitive.

"Come on, madam, take a look at these pictures, and you will understand that the farm tools just now are just mediocre."

Gu Lan chuckled lightly, walked to the table, and took out a stack of drawing papers. On them were all interesting things that he usually found in his spare time and recalled his past life.

"Ms. sir, this is a painting... of trees, insects and fish ponds?"

Mu Yu put her jade finger between her lips, her watery eyes revealing confusion.

She didn't understand the purpose of putting these three unrelated things together.

At this time.

Gu Lan wrote and drew three arrows on the paper, making the three form a closed loop.

"Look, madam, the leaves can be fed to insects, the insect sand or pupae can be fed to fish, and the fish mud is turned into fertilizer to nourish the trees. The three are mutually dependent..."

Gu Lan explained it carefully.

In fact, this thing has a very simple name-Sankey Fish Pond!

Anyone who has studied junior high school biology will know this.

Use a special breeding model to maximize benefits... This is much more advanced than simple tools.

After listening to the explanation, Mu Yuyan gradually understood the mystery!

When Gu Lan drew the arrow, she had a slightly enlightened expression, and after hearing a few words, her beautiful eyes widened, as if such a wonderful blueprint appeared in front of her eyes!

I actually thought of letting the three of them supply each other and harvest at the same time. This model is really possible... Mu Yuyan unconsciously covered her mouth.

However, this is not over yet!

Mu Yuyan had not finished digesting the shock at this moment, but the following pictures came into view, making her even more overwhelmed!

"This is a wooden ox and a horse, which can save people from carrying goods with their shoulders and hands; that one is called a vernier caliper, which can eliminate the error of the naked eye and measure to the millimeter..."

"This is a windmill, but it's different from a waterwheel..."

"Ahem, that... that's called a mobile phone, but it's not a chicken. It's a communication and gaming device. It should be difficult to make it now..."

Gu Lan talked with great eloquence, revealing all the treasures in his family.

Mu Yuyan was numb!

The product of wisdom that has never been seen before, the mind is trembling one after another!

It made her feel like she had been sitting in a well watching the sky for more than 20 years when she had been in charge of the world!

This has nothing to do with cultivation.

It’s just that the proud and intelligent empress felt so convinced when her IQ and knowledge were double crushed!

Half a moment.

After Gu Lan finished speaking, Mu Yuyan quickly handed over a cup of hot tea.

The beautiful little face was filled with shock and full of admiration!

"Ms. sir, how did you come up with these...?!"

For Mu Yuyan, what she heard in just half an hour was too unbelievable.

She never thought that Gu Lan's little bookstore would contain a vast amount of knowledge that even the wisest men in the world had never touched upon!

Compared with Gu Lan, calling those in the Ministry of Industry and Industry a waste of money is just flattering them!

Facing the lady's admiration that is almost overflowing.

Gu Lan waved his hand lightly and said with a gentle smile: "Look up at the vastness of the universe and look down at the abundance of categories. If you are interested, I will draw them for you to take a closer look at."

Looking at Mu Yuyan's rippling peach blossom eyes, Gu Lan felt that Gou's life in Langzhou was suddenly not so boring.

In my previous life, I told girls things that would make them annoyed, but I was able to show off in front of my wife.

Who can withstand this?

Gu Lan's heart was full of joy, but it was far from being as calm as on the surface.

At this time, the sound of Lao Yangtou and Xiao Xi eating was heard.

The two arranged their books and walked out of the study hand in hand under the moonlight.

At the same time, a mechanical sound sounded in Gu Lan's mind.

[You explained ancient books such as "Tiangong Kaiwu" and "Essential Art of Elevating the People"]

[You explained an article about biological science]

[You explained...]

【Earn rewards】

【Spiritual Spring x1】

【5000 years of cultivation】

[Immortal Level Pill Recipe·Nine Turns of Fire Spirit Pill]

[Immortal body luck 1000 (current luck level is cyan)]

[Fairy Spiritual Object·Suzaku Fire Feather]

【Fairy goods...】
Chapter completed!