The automatic grinding disc is not a great invention for Li An, but after the popularization of this thing, it will greatly improve the labor efficiency of the pasta workshop, before grinding noodles needs twenty people, only five or six people are enough in the future, and ten people are needed before, three or four people are enough, which can greatly reduce the demand for labor, and can also reduce the use of livestock, so that livestock do not have to suffer so much, after all, turning the grinding disc is an extremely painful thing for any animal, and it is constantly circling around a point every day. How painful this feeling is, only someone who has experienced this kind of exercise will understand.

This can be regarded as a benefit to the livestock that have contributed tens of millions of years to human beings, after the popularization of automatic grinding discs, no one will be willing to use livestock to grind noodles, at least, from the perspective of cost, it will be more cost-effective to use automatic grinding discs.

Of course, there is also a disadvantage to this, that is, there must be a lot of craftsmen will face the danger of unemployment, after causing the automatic grinding disc, because the labor demand for the grinding process is greatly reduced, the extra labor is sure to be dismissed, so that these dismissed people will be unemployed.

However, the wheel of history cannot be reversed, and the technological progress is also unstoppable, and this technology cannot be invented because of the emergence of this automatic grinding disc, which threatens the jobs of many craftsmen, otherwise, how can a country and a nation progress, how to become stronger and stronger.

When inventing the automatic grinding disc, Ang Lee mainly considered how to improve the efficiency of grinding surfaces, as for the situation that some workers were eliminated after improving efficiency, Ang Lee could not consider so much, otherwise, he would be timid everywhere and would not be able to do anything.

The reason why Great China was bullied in later generations is because all the products are artificially manufactured, while the goods of foreigners are almost the same, but they are produced with high-efficiency machines, the efficiency is dozens of times that of labor, and the quality is even better than that of handmade, so as long as they are not fools, they will buy the high-quality and low-cost products of foreigners, and will not buy the products of their own compatriots, which will cause the complete withering of the country's handicraft industry, and then cause the weakening of the whole country, and finally be bullied by foreign enemies.

For example, needle-making is a very energy-consuming craft, it takes a lot of energy to make a needle, the cost is naturally not low, the selling price is not low, and the most important thing is that the size of the needle is not small, and it is not too easy to use at all.

According to the records of Tiangong Kaiwu, the ancient artificial needle needed to first hammer the iron into small thin strips, and pull the iron strip through the iron ruler drilled with small holes, so that the thin iron strip became an iron wire.

Then, as needed, the wire is cut village by village, flattened at one end and hammered at the other. At the end of the hammer, the nose of the needle is drilled into the hole, and the initial shape of the needle comes out.

Of course, this is still a semi-finished product, which needs to be further made, and what is unexpected is that the ancients then put these needles in a pot as vegetables, stir-fry slowly, and use a fine fire, plus "condiments" such as soil powder, tempeh, and pine ash. The amount of these "condiments" should be covered with needles.

After frying, it is necessary to steam, and when steaming, leave two or three needles outside. When the needles on the outside can be twisted by hand, there is no need to steam anymore, and the pot is removed. It is also necessary to complete a final process, quenching. This is a very important process, because quenching determines the hardness and softness of the needle.

Nowadays, the needles we use are easy to rust after a long time, but the needles made with this traditional process are not easy to rust. However, because of the high cost, the needles made by traditional craftsmanship eventually lost the market, because the common people are very poor, who will pay a high price for these things? The needles made by foreigners are mass-produced by machines, and the efficiency of manufacturing is far greater than that of hand-made needles, and the needles made by foreigners can also be made finer and shorter, which is more in line with the needs of embroiderers.

Especially for some precious embroidery, the smaller the needle, the better the effect, so, after the cheap needle of the foreigner enters China, there is no market for the local production of needles, and the craftsmen engaged in this industry have gradually changed careers, as long as there are not enough interests, no one wants to do any work, craftsmen are also people, and they also need to support their families, and in the case of no interests, craftsmen can only choose to change careers.

That is to say, if you consider the interests of craftsmen, do not invent machines that can replace labor, maybe you can protect craftsmen for the time being, but others may not think so, when others invent this machine in advance, they will produce more and better products in large quantities, so that your good intentions will do bad things, if a country and a nation are all people who love the people too much, then it is the sorrow of a country and a nation, and sooner or later it will be invaded by foreign enemies.

In addition, although the emergence of automatic grinding discs will make many people engaged in manual grinding unemployed, there are many job opportunities in Datang, this position has been eliminated, you can change a position, this workshop is closed, you can go to another workshop! As long as you are not too lazy, you will always find a solution to the problem.

In addition, with the invention of more and more machines by Ang Lee, the continuous expansion of the industry, the demand for manpower in the future is still very high, and the huge population demand can fully provide sufficient job opportunities for the people of the entire Datang, and even, after the gradual shortage of personnel, it is also necessary to introduce population from neighboring countries to make up for the lack of human resources.

Of course, as far as the current situation is concerned, human resources are still relatively sufficient, in the vast rural areas of Datang, there are a large number of farmers, these farmers are very good reserve labor resources, with these farmers step by step into the city, it can be a good solution to the problem of lack of labor in the city workshop.

However, as the living standards of Datang are getting higher and higher, the people of the surrounding countries have begun to turn their hearts to Datang, and many ordinary people are trying their best to enter the territory of Datang, thinking that they are seeking a better life.

At the beginning, the people who came to Datang were all merchants engaged in trade, and as the merchants spread the wealth of Datang, many ordinary people also began to enter the territory of Datang, among them, the foreign population entering the capital Chang'an City is the largest, the capital of Shuzhong is also a lot, and there are many in the southeast coastal area, in short, the preferred destination of these outsiders is Chang'an City in Datang, and then it is the nearest prosperous city of Datang.

For example, most of the foreign people in the southwest are willing to go to the capital of Shuzhong to make a living, the foreign people on the eastern islands like to settle in Yangzhou, and the people in the southern island countries prefer Guangzhou and Yazhou.

As long as these foreign people can better obey the laws of the Tang Dynasty and work and live honestly, they will definitely be recognized by the Tang Dynasty and live from generation to generation.

After all, a very important indicator to evaluate the strength of an empire is the size of the empire's population, and the larger the population, the stronger the empire's power.

Although since ancient times, a small country with a small population has defeated a large country with a large population has happened repeatedly, but this does not mean that the population has nothing to do with national strength, it is just a special situation, a large population is a great advantage in any era, the strong rise of the Chinese future, a very important factor is the explosive growth of the population, the huge population provides a steady stream of sufficient labor, provides a huge market, and also provides a strong reserve soldiers, in short, the benefits are too many.

As for limiting the population, it is because I am worried that the population will grow too fast, exceeding the carrying capacity of the resources, resulting in a disaster that the land cannot support, so, it is very terrible, however, these are not what Li An needs to consider, the population density of Datang is not high, even if it grows for another hundred years, it will not exceed the carrying capacity of resources, and there is no need to worry that the resources cannot carry so many people, sweet potatoes and potatoes, these cold-resistant and poverty-resistant high-yield crops have been obtained, and I am afraid that the people will be hungry.

The automatic grinding disc is still grinding the dough, and several craftsmen next to it are busy adding soaked soybeans to it, two craftsmen take turns adding beans, and a few people are watching from the side to prevent anything from abnormal.

Li An stayed for a moment, and almost understood the situation of the machine, so he left, and he was going to Shuofang to play in a few days.

Food, clothing, housing and transportation are nothing, it is very easy to get it, and special attention should be paid to safety issues, horse thieves are rampant in the north, and if they fall into the hands of horse thieves, it will be very bad.

Therefore, in order to avoid being unable to defeat the horse thief, Ang Lee must make more bullets and firearms, carry them with him, and if he encounters danger, he can kill the enemy who threatens him with a few shots, so as to better protect his own safety.

At least two light pistols should be brought, a hundred rounds of bullets with you are enough, the rest is good to put in the vehicle, one long gun is enough, there is no need for more, and it is not very convenient to carry.

With this killer self-preservation artifact, Li An has nothing to worry about when he goes north to Shuofang, he will definitely not be threatened by horse thieves, and the firearms he carries with him will only be used at the last moment, and it is estimated that he will not be used.

In addition, Li An also plans to transport the newly built telegraph to Shuofang, so that Li An can contact the direction of the capital in time, and if there is anything in the R&D center or the imperial court, he can also know in time.

Because the telegraph machines developed by Li An at this time were all wired, it was not so easy to lay a line, and it was necessary to deploy it in advance, that is to say, Li An had to start deploying at this moment, first obtain the consent of the imperial court, and then quickly transport one of the new telegraph machines to Lingwu City, the capital of Shuofang, and mobilize a large number of people to build electric poles along the railway line to extend the line.

Because there is almost no difficulty in this project, as long as enough manpower is used, the project can be completed quickly, and Li An has the right to mobilize a large number of craftsmen, as long as an order is given, let a large number of craftsmen lay electric poles in sections, it is estimated that in less than half a month, thousands of miles of wires can be laid.

According to Ang Lee's vision, a distance of more than 1,000 miles, if divided into 100 construction teams, the length of each group is only a dozen miles, and the road is paved one mile a day, and it will be paved in more than ten days.

According to the density of ten telephone poles erected in one mile, a group needs at least twenty or thirty people to be busy, so calculated, a hundred groups need two or three thousand people, plus the people and horses who transport raw materials and the overall command, the total number of people involved will definitely exceed three thousand, which is not a small number, but Li An has the right to mobilize so many manpower, there are hundreds of thousands of people in the R&D center alone, and it is not easy to mobilize three thousand craftsmen, as for the affairs of the imperial court, Li An will naturally coordinate.

Since the newly developed telegraph machine was dedicated to the emperor a few years ago, these two baby bumps were regarded as treasures by the emperor, and during the Chinese New Year, the emperor would send a telegram to Luoyang City almost every day, greeting the ministers there, and getting feedback from the ministers of Luoyang City in time, this kind of machine that can transmit news in an instant, so that the emperor was very happy.

And Li An was not idle, after offering the first two telegraphs, he asked the craftsmen of the R&D center under his command to work overtime to manufacture, and there was no rest during the New Year's holiday, three units were built in one batch, and they were better than the previous two, mainly because the shape was smaller, only half the size of the previous one, which was a very good progress, and it was already very satisfactory to Li An.

The reason why he is so anxious to step up manufacturing is because the emperor made a decree to let Li An make more research and development, and let more cities in Datang use telegraph machines as soon as possible, so that it will be much more convenient for the emperor to govern the world, and the administrative cost will be greatly reduced.

As for the wireless telegraph, at most half a year, Li An is confident that he can get it out, when the time comes, it will be more convenient, and there is no need to use a lot of manpower to lay wires, the cost savings are not a little bit of a star, of course, the wires that have been laid will definitely not be wasted, when the telephone comes out in the future, it can also be used, first lay it and then talk about it, and, in terms of reliability, wired is definitely more reliable than wireless, wireless is easy to be interfered with, If there are a lot of mountains blocked, the signal probably can't be transmitted, and the wired is different, as long as the line is not destroyed, then the signal will be able to be transmitted in place, absolutely no need to worry about the signal being interfered with, and even in the later generations when the radio is extremely developed, there are still people who choose to lay cables on the bottom of the sea, because the reliability of laying cables is higher.

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