Put a wooden stick in this place, the pigeons can be easily caught, the walls of this place should be able to be removed, the pigeons need shelter in the winter, and they should be ventilated after the beginning of spring......"

In the location of the land bought by the Li family Zhuangzi, the villagers listened to others' explanations.

The person who explained was not Li Yi, he just raised pigeons, he didn't need him, someone in Datang would raise pigeons.

There are also people who use pigeons for competitions and pigeon fights.

Cockfighting, dog fighting, incense fighting, everything has to be fought.

can raise fighting pigeons, carrier pigeons will naturally raise.

The key is that Li Yi has never raised pigeons, and the things he checks are not as good as others' actual operations.

Pigeons are annoying to keep, especially in the city, where the whistle is noisy, the neighbor's window cannot be opened, and there is pigeon poop on the balcony and glass.

What's more, there are members of the association, and it is the pigeons that disturb the people who communicate on weekdays, and in addition to being prosecuted, they basically don't have to worry about being punished.

And the Chinese people are reluctant to sue, Li Yi is disgusted, because of the humanity of some people, and they are disgusted with raising pigeons.

If he can't get in touch with it, he won't, or even want to know, but he only knows that the roast pigeons he sells are generally collected for ten to fifteen yuan a piece.

Now he needed, in order not to disturb the people, to choose an open place, a no-man's land of a few miles around.

He thought that the pigeons could only hatch after spring, but he didn't expect that winter would work as well.

And in winter, as long as the temperature is a little warmer, the pigeons are willing to lay eggs and hatch.

Check the information, show that there is heating abroad, basically do not use it in China, adjust the hoarding on the four sides, you can do it.

"Xiao Yi, it's not easy to use pigeons for military communications."

When Lu Huaishen was hospitalized, he knew that Li Yi had started raising pigeons, and he spoke his mind.

"It's not easy to keep pigeons, it's even harder to transport pigeons. However, there is a pigeon communication, which can take the initiative.

The cost of raising pigeons is not high, the pigeons grow fast, and when training, one person can train a large flock.

Even if a pigeon costs ten taels plus the transportation fee, as long as it can get the news to the key place, it is earned. ”

Li Yi actually wanted to use pigeons to participate in big battles, and it took many years to cultivate to be able to fight Tubo at one time.

Who made him unable to make a telegram now, if there was a wireless telegraph.

From Datang to Tubo, transfer points were set up along the way, and there were also telegraph machines in the Datang departments at the border.

Then you can take the initiative to provoke the Tibetans, and as long as the Tibetan army dares to move, it will inevitably have a marching route.

Datang's troops also had telescopes, which were accompanied by telegrams from scouts......

Lu Huaishen didn't know that Li Yi next to him was thinking about an epoch-making thing, and he said to Li Yi: "If you raise more pigeons, you can eat them." ”

"Why don't you raise chickens and ducks to eat? Raising pigeons is more strenuous than raising chickens and ducks, and the loft has to be cleaned all the time. "Li Yi doesn't want to eat pigeons, it's too small and there is little meat.

He continued, "The dove is not a sparrow, but the sparrow eats the grain when it is about to be harvested."

With the Internet, a bunch of nets at a time, eat.

Sparrows eat bugs during normal times, so they don't usually catch sparrows.

In the big picture, the sparrow eats more bugs, and it eats less food than the bugs it eats.

But when the sparrows are in flocks, and when they see that they are about to harvest, who will be willing to go to their fields to eat the crops? ”

Lu Huaishen: "......"

"The old man is too sick." He muttered.

"You will go back the day after tomorrow, a minor illness can't cure the whole Tang Dynasty, but it's still okay to treat a small number of people."

Li Yi sighed when he said this.

He didn't say at the time that he could heal everyone, but the better thing is that his country is actually the best country in the world for medical care.

I usually say that the country is good, and there is a lot of money to be reimbursed. Another country is good, free for all.

When it comes to the pandemic, it is clear who is good and who is not.

"Xiao Yi, you have passed on so many medical books, there are more people who are willing to study medicine, and there are more people who are willing to study.

When the thirty Tai Doctors from the Tai Yi Department are good, they can also teach others.

The equipment is not as good as yours, the technology will always improve, don't think about one step to the sky. ”

Lu Huaishen began to comfort Li Yi, he knew that Li Yi had something that others didn't have, and Li Yi couldn't prepare a set for everyone.

However, so many medical books Li Yi released did treat many people.

Where newspapers can't reach it, medical books have already passed through.

As long as Li Yi takes out a medical book, it won't take long for all the state capitals of the Tang Dynasty to have it.

When students teach medical skills in class, it is nothing more than that many students are unwilling to learn.

"Studying medicine is tiring." Li Yi thought for a while and gave such a sentence.

Then he said: "But it is very profitable to learn well, and it is to learn well, not to use deceptive methods." ”

"Xiao Yi, the scarecrow scares birds, it doesn't work for a long time, take a net to catch it, and the net is also money."

Lu Huaishen turned to sparrows and other birds.

"Make a windmill, string a bunch of paper windmills with strings, used to be expensive paper, straw paper is soft, now there is good paper."

Li Yi casually gave a solution, looking like such a small matter was easy to solve.

"Windmills can be made with bamboo chips and large-leaved grass, so why use paper? It's that if a person touches it, it will be cut if it's not careful. Lu Huaishen said with a smile.

Li Yi stood there still, distracted......

After waiting for a while, Lu Huaishen began to worry: "Xiao Yi, I just occasionally think of something, it's not practical, it's still paper." ”

Lu Huaishen thought that Li Yi had finally come up with a solution, but he was defeated by his own method, and he couldn't think of it for a while.

"yes, why do I always think about gasoline engines, diesel engines, and electric motors? Foot-operated propellers can also be tried. ”

Li Yi returned to his soul, he said something that Lu Huaishen didn't understand, and then ran away.

He wants to draw drawings, and he doesn't have to be so strict, just about the same, and he doesn't need five-axis linkage and printing technology.

"Cast, use the method of casting, and then polish it smooth, put it on a ship, it is better than a ship."

Li Yi ran back to the study, where he drew the surface, selected the point, and asked for the degree of distortion.

Next to it is a drawn face, and the distance between the surface and each position of that surface is the basis for the production time.

The smaller the spacing between the dots, the more accurate the data will be.

The denser the point, the larger the amount of work.

At night, when Lu Huaishen needed to prick the needle, Li Yicai finished painting, five fan blades.

The reason why it is not three pieces is that he is worried that the metal material will not be able to support it.

He threw a stack of drawings into the workshop and ran to the inpatient department.

"In two days, maybe you can see a kind of boat that runs very fast, faster than all the boats now, but it is more expensive."

Li Yi gave Lu Huaishen a needle, glanced at the food delivered from the canteen, and talked about another thing.

Lu Huaishen's state at night was stronger than during the day, and the food he brought him was light.

"You listened to what I said and thought of something new?" Lu Huaishen stared at Li Yi.

Li Yi smiled: "Inspiration is here, no way!" Degree of literature