On Saturday, September 10, the auditorium of the Telegraph School, with more than 200 seats, was so full that even the aisles were lined with stools. Pen "Fun" Pavilion www.biquge.info not only the students of this school came, but also nearly 100 people came to the Beiyang University Hall in the south of Dayingmen, and even a few medical students from the nearby medical hall also came to observe. Liang Hong sent people to put up posters in these schools, and the gimmick of the world's telegraph technology frontier was very loud, and the telegraph was a proper high-tech at the end of the 19th century, and the degree of sophistication was equivalent to that of computers at the end of the 20th century.

The teachers of these schools attach great importance to it, and all the teachers of the telegraph school have come, and the teachers of the electrical major of Peiyang University Hall have almost been dispatched. Don't think that these people are here to listen to new technologies, some foreign teachers are resentful that Chinese people dare to talk about the frontier of technology, and some of the Chinese teachers are slapped in the face by the organization. Three days ago, Li Hongzhang, the founder of the Beiyang system, was ordered to walk in the prime minister's yamen, which made Kang Youwei and Weng Tonggong's new party kick out of the highest level of power, which aroused the indignation of the elders of the Beiyang system.

Shen Mingxuan was the first to give a speech, focusing on the automatic telegraph, and then only briefly introduced the latest developments in wireless telegraphy. The automatic telegraph machine is also called Morse Express, which is to use a machine instead of manual sending and receiving telegrams, and the sender first uses a keyboard drill machine to chisel out the Morse symbol hole on the chiseled paper, and then sends the chiseled paper to the automatic transmitter, and the receiver uses a corrugated receiver to receive. Since the sending and receiving of reports are replaced by machines instead of manual labor, the efficiency is much higher than before.

The slap in the face was originally from Shen Mingxuan, so at the beginning, the firepower was concentrated on the automatic telegraph machine, and the main body of the attack was mainly the Chinese teachers of Peiyang University. However, after asking a few questions, they found that it was not easy to find loopholes in this area. Shen Mingxuan himself was born in telegraphing, and the automatic telegraph machine was a product that began to be commercially applied abroad, which was equivalent to attacking the enemy's strengths with his own shortcomings in this regard. After making a layman's joke, he decisively turned to the latter topic and began to ask questions about wireless telegraphy.

"Regarding wireless telegraphy, I think it would be better for you to listen to the speech later and then ask questions, and now I would like to invite Mr. Liang, manager of Huatong Foreign Bank of France, to explain the latest trends in the field of wireless telegraphy." According to the prior agreement, Shen Mingxuan wisely withdrew.

In the speech of wireless telegraphy, Liang Hong mainly explained Marconi's patent ideas. This patent scheme is complete and feasible, but the practicability is relatively poor, and it is mainly supported by a huge power and antenna system. However, for the students of the two schools, this is already an eye-opener, knowing that electromagnetic waves were only verified by the German physicist Hertz to be real ten years ago.

"Mr. Liang, since wireless telegraphy requires such a large amount of electricity, and since it is said that Marconi's equipment is extremely large, the practicality of this research result is in doubt."

The next question is asked by the teachers of the Telegraph School, who question the superintendent for their concerns, but they are not merciful to outsiders. What you say is useless, and it directly and fundamentally negates the value of the speech.

"It's a drawback, but it's just a drawback of Marconi's patent." Liang Hong cut the radio Marconi, "There are two problems with his patent. One is the problem of filtering, which only needs a very narrow band for information transmission, and it is a waste of energy to release a wider electromagnetic band. Second, in many cases, wireless telegraphy is forwarded and received in a directional manner, and indiscriminate transmission to the surrounding area is itself a waste of energy. If these two problems can be remedied, I think the power required for wireless telegraphy will be greatly reduced. ”

Liang Hong looked at the students in the audience, suddenly changed the topic, and rushed down to ask questions.

"Ask the question, does anyone doubt that a train can go faster than a horse-drawn carriage?"

"Nope"

"That's what a fool thinks"

The underground replied in a garbled manner, mixed with the laughter of the students.

"Now everyone thinks it's ridiculous, but when Stephenson in England built the steam train, some people were so skeptical that they had to race against horse-drawn carriages. Similarly, when Fulton of the United States invented the steamship, he also raced with sailing ships. At the beginning of every new technology, there were always many imperfections, when the new trains and ships were only a few kilometers per hour, but now no one doubts that the two means of transportation can run tens of kilometers of speed. ”

"It's the same with radio technology, which was certainly imperfect at first, and we can imagine it. When a ship is equipped with wireless telegraphy, it is not very convenient to be able to communicate with people on land at any time no matter where it is sailing in the vast ocean. Isn't it very necessary for a field army, no matter where it goes, to receive orders by radio at any time. Going a little further, many wireless telegraphs have been replaced by telephones, which are wireless telephones, and if telephones are replaced by loudspeakers, they are radio broadcasts, which can make the sound heard by people in other parts of the world at the same time. ”

"If the advent of paper makes the knowledge passed down from generation to generation by the aristocracy become a book in the school, it can be called a social progress. Then in the future, radio broadcasting will make people in remote places also care about current affairs, which will be called another social progress. Imagine this, you say, will radio be useful in the future? ”

This brain hole is big enough to make the whole school boil, and teachers and students are talking to each other. After waiting for a while, the discussion was quieter, and Liang Hong continued his speech.

"This huge demand is actually the driving force for scientific research, but motivation alone is not enough, and many other conditions are needed." As he spoke, he pointed to a student in the Telegraph School below, "For example, Zhang San of the Telegraph Academy, after hearing it, he thinks the radio is very good, and he is determined to study like Marconi, will he be able to succeed?" I think it's hard. ”

"First of all, we need to invest in capital, and as I just said about the current level of radio, we need to invest in both power and equipment, and further improvement will involve electronic components and more complex industries. Okay, Zhang San said that my family is very rich, and all the wealth of the family has been sold to make inventions, so there must be a good result? Not necessarily, maybe Li Si next to you, when you came out, secretly went abroad to apply for a patent for your results. Unfortunately, there is no patent law in the Qing Dynasty, let alone a member of the Paris Convention for the Protection of Industrial Property. ”

"Even if you make a good invention and have patent protection, you don't necessarily get a profit. Maybe someone secretly imitates your product for sale, and maybe someone simply comes to the door and says that you infringe on his patent rights. Therefore, industrialization is more complicated, requiring capital, technology, legal environment, and industry environment, at least all kinds of components can be easily purchased locally. ”

In the end, Liang Hong revealed his true face and advertised himself.

"We have built a base in the African colonies dedicated to the study of radio, and we have built a power plant, and we have all living and other research facilities. Welcome the students of the Telegraph School and the Peiyang University Hall to engage in research, we signed a contract between the two sides, the investment is made by Huatong Foreign Bank, and the ownership of the patent right belongs to the foreign company, but you have the right to sign the patent. It doesn't matter if you don't graduate now, when the research results come out, I don't think a diploma can be an obstacle anymore. By the way, here is a special statement that engaging in research is paid and the salary is very high. ”

He saw that in the auditorium, two white spies were already handing out business cards among the students.