Ask Sword

In the middle of the night, Li Ang sat at the table, flipping through the letters sent by his relatives and friends in Chang'an, his face looming in the candlelight.

The long-distance communication ability of the close insect is limited to the number of times per month.

The younger the close worm, the less times it can be used each month. Therefore, even if it is a local governor, if there is no important business, he can't use it for private purposes, and call relatives and friends in Chang'an.

More, or letter contact.

The school has ended its winter vacation, and the school has officially started, and academic exchange activities have also entered a new stage.

The agronomy competition is divided into many projects, including flower group, fruit group, vegetable group, potted landscape group and so on.

Doctors of agronomy pay more attention to fruit and vegetable projects, to see if there are new crop varieties or new farm tools,

Students and the general public are more keen to appreciate rare flowers and potted landscapes, such as peonies, roses, orchids and so on.

At the competition site, a white peony plant cultivated by the seniors of the school even sold for 8,000 peonies.

In addition, there are math competitions.

The questions compiled by PhD students in mathematics from different countries won a lot of complaints from the students.

The first place in the final arithmetic competition was won by a Xijing student who was weak in writing and not like Jing people.

When the other party was still presenting the award, he intentionally or unintentionally sneered a few words, to the effect that indulging in the glory of the past would only make it impossible to make progress now and so on.

This made the students of Yu State, who have always boasted of being excellent in mathematics, very unhappy.

Yang Yu said in the letter that if Li Ang was still in the academy, the first place would definitely be Yu Guo.

He also asked for a blank test paper from Zhao Wenyuan, a Ph. D. in mathematics. He originally thought that the fortress would send it in an envelope, but then he thought it might disturb Li Ang, so he didn't send it.

Wait for Li Ang to come back and do the exam questions by himself. When the time comes, give that Xijing mathematics student a good slap in the face.

What's this? 'It's a pity that my generals Yan Liang and Wen Chou are not here. If there is only one person here, why be afraid of Hua Xiong'?

Li Ang couldn't help but smile bitterly, and flipped through other letters.

In the letter from Aunt Song and Song Shaoyuan, Li Ang was told to keep warm and not to be frozen by the cold spring.

In Li Leling's letter, she talked about some trivial daily routines, such as the wedding that the palace prepared for her fourth brother Li Hui, which can be called unprecedented grand.

Emperor Yu and his wife really doted on this son the most. They not only used the money from the royal treasury, but also used a huge amount of wealth that cannot be explained in detail.

It made the other princes and princesses extremely envious and jealous in private.

It seems that the rumors in Chang'an are indeed true. Those big merchants who show their faces in the eastern and western cities, such as Jin Wusuan, are more or less agents of the royal family in private business.

Li Ang shook his head. Almost all the emperors of the Yu Kingdom did not like extravagance, and all of them had small golden caves. This is a common problem of the royal family surnamed Li.

Cheng Juxiu, who is far away in Dengzhou, also heard the news that Li Ang went to Suzhou to curb the water poisoning epidemic, so he wrote a letter to encourage him.

He also talked about the manpower plane that took off in Dengzhou before.

He smiled and said that one day Li Ang can develop a manned aircraft that can fly at high speed. By then, it will only take one day to travel from the northern part of Yu State to the southern border of Yu State, and he can bring his family with him.

Looking at the progress of Tantai Leshan and Dr. Su Feng, they may actually manufacture a manned aircraft before the car. Yu Guo's technology tree is indeed crooked.

Li Ang shook his head and smiled bitterly: At that time, we may have to set up an air traffic management bureau under the control of the six ministries to manage the airspace - there is a wind layer in the high sky, and monks have to report to the air traffic traffic bureau before using the flying sword, so as not to bump into them head-on. airplane.

As Li Ang's status in the academy got higher and he read more banned books, he also felt more and more that there was a huge difference between the technology trees in the memory of Yu Kingdom and the foreign world.

Iron melting and iron casting are equivalent to CNC machine tools and industrial master machines,

The rain symbol is equivalent to artificial rainfall shells,

Burrow is equivalent to a shield machine.

In the memory of the alien world, those products that require countless pre-scientific technologies to be clicked out,

In this world, it can be completely replaced by spiritual power and magical talismans.

Even in some occasions, the effect of the magic talisman is even better.

More importantly, Alienation.

Li Ang's face was a little dignified, he actually lied to Qiu Feng during the day,

In his communication with Chang'an's close worm, the head of the mountain revealed that the school secretly conducted a series of experiments,

Certain alienated substances in Dongjun Tower can kill snails and schistosomiasis.

It's just those alienated substances, without exception, have side effects.

For example, a thumb-sized fish that is harmless to humans and animals is called Divider. It has the ability to divide itself. It produces two in one life, and four in two.

However, the division rate of this fish depends on the water system in which it is located.

The larger the water system, the faster the split.

If it is put into Taihu Lake, where the water network is dense, all rice fields will be filled with this small fish in a few years.

Not to mention that it may swim along the lake and into the sea.

There is also a gray-and-white animal shaped like an anteater and the size of a dog called the worm tongue.

The main food of the worm tongue is all kinds of snails.

It uses its long and thin tongue to pull out snails from the grass soil and eat them directly. The efficiency is a thousand times higher than that of humans in a day, and it will not be infected by schistosomiasis itself.

The downside is that the excrement of the Wolverine is atomized, and it will form a highly toxic corrosive cloud when exposed to the air.

Not only is it harmful to humans, but it also penetrates into the soil, causing irreversible degradation of land fertility.

The heterogeneity of Dongjun Tower is like a double-edged sword.

It is very difficult to find a dissimilation substance that can work and has no side effects at all.

It is always easier to destroy than to build.

Li Ang sighed and opened Chai Chai's letter.

Chai Chai wrote some trivial things in the letter, such as the difficulty of the exam, a lot of homework, when will you come back, young master, etc.

At the end of the letter, Chai Chai had to add a sentence, the words above were all written by himself using pen and paper with his thoughts, isn't it amazing.

Li Ang could even see the corner of her mouth curled up, complacent, waiting for praise.

We should praise her well when we go back.

Li Ang put down the letter with a smile, picked up the brush on the pen holder, and prepared to reply.

However, the pen hovered on the paper for a long time, and I still didn't know what to write.

The dense and shocking flood of oncomelania outside Suzhou City,

Countless families in the ward have experienced life and death,

the bustling port,

Taihu Lake flooded with plague water.

Li Ang hesitated again and again, and finally wrote a sentence like Everything is fine, don't worry about it in as relaxed a tone as possible, and put the letter paper into the envelope.

Waiting for tomorrow, ask someone to send it to Chang'an.

After writing the reply letter, Li Ang finished washing and lay on the bed, but couldn't fall asleep after tossing and turning.

Simply, go and see Taihu Lake.

Li Ang opened his eyes and awakened Mosi's clone hidden outside Suzhou City and deep underground.