"What, you're talking about that wireless telegraph? Hey, look for me, I'll just say that thing in China, except for me, the first to get started, basically you can't find two people, including our earliest radio equipment in China, I bought it. ”

Zaitao, who was packing up his things at home and preparing to rush to Europe with part of the school guards, heard the news, threw away his luggage, immediately trotted over, and said a call when he found Cheng Nuo.

"Dean, I don't have any other skills in Zaitao, but in terms of knowledge, I can definitely say two words in this regard, and there is absolutely no problem in helping you palm your eyes."

Cheng Nuo, who was drafting the daily essay, glanced up at the other party, and continued to write: "Mr. Zai, shouldn't you pack up your things at this point in time and decide on a candidate to go to Europe, if you don't act, Professor Haber will really become a 'Wangfu Stone'." ”

Zaitao's face was slightly cramped for a while, and then he explained: "The things are just like that, and the personnel know the roots, and they can set off at any time." ”

Thinking of the purpose of his visit, Zaitao went straight to Cheng Nuo's desk, supporting the table with both hands: "Dean, in fact, you don't know, in the last years of Guangxu, when I was still a Belle master, I traveled to Germany to visit Deli Fenggen Company, and people specially gave me a radio performance.

As soon as I saw that the effect was not bad, I directly bought two of them and put them in Nanjing and Beijing, and informed each other, which was very good. It was precisely because of this that Yuan Datou took a fancy to radio that he founded radio training in Tianjin. ”

"And what's going on?" Cheng Nuo was surprised.

"But isn't it, he's a foreigner and a person, and he naturally wants to show off when he has good things, that is, to seize this point, when I went to Europe, I saw a lot of good things, and even some gadgets I have studied it, and it just so happens that this wireless telegraph machine is one of them." Speaking of this, Zaitao couldn't help but be complacent.

"Yes, Mr. Zai, I really didn't expect you to have research in this area." Cheng Nuo put down the pen, picked up the manuscript in his hand, dried the ink on it, and handed it to the other party: "It's just right, please Mr. Zai help me see if there are any omissions in this article." ”

The early radio technology mainly includes wireless telegraphy, wireless telephone, radio radio station, the earliest introduction to China is wireless telegraphy, so the radio station mainly uses wireless telegraphy technology.

Interestingly, in the second year of Xuantong, the French set up a radio station in the Gujia Mansion in the French Concession in Shanghai to make daily meteorological reports with sea vessels and in conjunction with the Xujiahui Astronomical Observatory.

This behavior was not approved by the Qing government, which protested, but the French ignored it and continued to use it as usual.

In Cheng Nuo's year, the public still controlled radio, and radio supplies were regarded as military supplies and could not be imported freely, but the concession became a "talisman" for private installation of radios with its geographical advantages, and our radio technology has also been developed to a certain extent, which is full of irony.

Seeing the manuscript, Zaitao gasped: "Is this the radio text we listen to at noon every day?" At first, I thought that the dean had asked other gentlemen to write it, but I didn't expect it to be in the dean's hand. ”

Cheng Nuo walked out from behind the desk and leaned on the table: "In terms of radio technology, because the threshold for wireless broadcasting is relatively low, and the sound has a good transmission nature, it is conducive to our public opinion dissemination, but as an emerging technology, many people don't know about it, so naturally I will handle it." ”

Zaitao nodded, and after reading the full text, he said solemnly: "The words are sharp, I don't think there is a problem, but I still have something unclear, that is, we have just reached a radio procurement contract with the public for 300,000 yuan, so our relationship with each other may be affected by this, right?" ”

Cheng Nuo raised his eyebrows and said with a smile: "The public family is not monolithic, otherwise there would not be so many frustrated people in Tianjin, our document is not directly aimed at the public, it also refers to the environment of Shencheng openly and secretly, not for specific organizations or individuals, as for the contract ......"

After a pause, Cheng Nuo got up and poured him two cups of hot tea, handed a cup to Zaitao, warmed his hands and said: "It is said that it is 300,000, but in fact it is just 200 radio machines, with the proficiency of our workers, it doesn't take too much time to make it, and if the contract is not reached, we can sell it to others." ”

If the normal trend of history is followed, the Zhifeng War will break out not long after, and then the Beiyang government's official may change his surname to Zhang, and if the goods are really delivered on time, it is really difficult to say that these radio machines will fall into their hands.

However, with his relationship with the young master, this is not a bad thing.

Zaitao thought for a while, nodded and said, "It's okay, you just have an arrangement in mind, so that I can rest assured that I will be in Europe." ”

Thinking of this trip to Europe, Cheng Nuo suddenly smiled and said: "But Mr. Zai's reminder is very timely, this time it is really thanks to your arrival, otherwise there would have to be something less." ”

Zaitao was really confused now, and after thinking for a while, he didn't come up with a reason, so he simply asked, "I don't know what the dean said?" ”

Cheng Nuo shook his head and said mysteriously: "You will find out if you come with me." ”

As he spoke, he took the lead in front of him, shouted that Li Laosan was riding a tricycle, and soon came to Chang/Xindian, pointed to a factory and said, "Good things are here." ”

Looking at the big guy in the factory, and then looking at the antenna erected high, Zaitao seemed to understand a little: "Could it be that our radio station is built here?" ”

Cheng Nuo shook his head and said with a smile: "If you really build that thing here, if you meet some stunned young people in the public family, and directly bring the big-headed soldiers to the door, wouldn't you even serve me the pot together?" Let's go ahead and see. ”

At this time, Zaitao could no longer suppress the curiosity in his heart, opened the tent and got in, and after seeing the machine inside, it suddenly dawned on him that this was the research room of the radio machine.

"This ...... Is this the production base of our radio equipment? Walking to the workshop, Zaitao looked left and right, and he really couldn't put it down.

"The production and assembly of machine parts are placed in the concession of Shanghai, where there are our Huasheng electrical appliance manufacturing plant and new machine factory, which is much more convenient to produce than here, but here is Mr. Tesla, a temporary research laboratory, the main direction is remote transmission." Cheng Nuo explained.

"That's good, that's good." Zaitao suddenly realized, but then understood the purpose of Cheng Nuo bringing him: "Do you want me to bring a machine that can transmit signals over long distances to Europe for experiments?" ”

Cheng Nuo smiled and said: "Yes, that's what I think, as early as the beginning of the century, foreigners have done the wireless telegraphy experiment across the Atlantic, and now nearly 20 years have passed, although our technology is worse than the most advanced, but it is not too bad, it just so happens that you go to Europe this time, you can bring a few experiments." ”

Zaitao was very happy about this, and said happily: "This is a great thing, and the contact between us is more convenient." ”

For other considerations, Cheng Nuo specially reminded: "However, our technology is not mature enough for a high-power radio machine like this, and you may have to be prepared in terms of user experience." ”

At this moment, Tesla, who was busy on the other side, saw Cheng Nuo and the two of them, put down their work and led a group of students over, and happened to hear Cheng Nuo's last sentence, and deliberately said with a straight face: "Comrade Dean, we have relatively mature radio technology." ”

In order to prove what he said, Tesla instructed the students to turn on one of the telegraph machines and explain the parts in it one by one, which means that the machine is 100 pounds, but the overall technology is definitely at the advanced level in the industry.

"No, Mr. Tesla, are you sure you're right? Does this machine have 1000 watts? "Look at the machine, and then look at Tesla, Zaitao said in disbelief.

Tesla felt a little inexplicable, and only then explained after understanding the purpose of the other party's visit: "We are more than 10,000 kilometers away from Europe, if you don't use this kind of special remote notification machine, how can you transmit the signal?" It's simply not possible, okay. ”

Cheng Nuo suddenly felt embarrassed, just now he was just happy, ignoring the difficulty of crossing the entire Eurasian continent, and hurriedly stepped forward: "Mr. Tesla, if we bring this kilowatt remote transmitter to Europe, can we receive the signal in China?" ”

After frowning and thinking for a while, Tesla shook his head, pointed to the battery in the machine inside, and said: "Japan's 'Tongmao' battery is very difficult to use, the battery is made of paper shell, the quality is not good, and there is often leakage and mold, which will also cause the beads to break." ”

Zaitao asked: "That is, this machine is not mature?" ”

Mr. Tesla took off his glasses, rubbed his dry eyes and said, "There is nothing wrong with radio technology, although it cannot be mass-produced, it is still possible to make a few units experimentally, but this kind of battery really can't drive the machine." ”

At this point, Cheng Nuo finally reacted, why radio technology has begun to develop steadily, his mind is still restless, and now he remembers that he is far from taking action on battery technology.

Although the first battery in history was nothing more than a dry cell made by adding starch to ammonium chloride solution, the electrolyte was only cured with gypsum.

But it is such a technology, we do not have it in China, until the liberation of China's battery industry has been in a backward state, most of the batteries rely on imports. As for the present, the domestic battery market is also completely monopolized by foreign goods.

After thinking about it, Cheng Nuo made another note of the itinerary of the School of Chemistry.

It's a pity that far water can't solve the thirst of the near, and now Zaitao is about to leave, and it is urgent to take this kilowatt radio transmitter, and it is impossible to wait until the domestic battery technology is mature before leaving.

Looking around, the bulb above his head reminded Cheng Nuo, and quickly said: "Such a big machine, you can't carry it with you, the best way is to fix it somewhere, I wonder if you can directly use AC drive?" Skip the battery first, and we'll solve it later? ”

This sentence woke up Tesla, what he is good at is not alternating current, he has been thinking about portability before, and he has studied it according to the requirements, but he has ignored the opposition between high power and portability, and it is impossible to have both.

The more I thought about it, the more I felt that this solution was feasible, and Tesla turned around and left.

This can make Zaitao confused, and just wanted to ask, but was stopped by Cheng Nuo.

"Dean, this ...... Mr. Tesla didn't say anything, he was leaving, whether it was feasible or not, he didn't know what to say? Zaitao said anxiously.

"You can rest assured, in terms of alternating current, if Mr. Tesla calls himself second in the world today, no one is qualified to dare to call him first." Cheng Nuo said with relief.

"But what is he doing here?" Zaitao breathed a sigh of relief and asked again.

Cheng Nuo turned around and walked away, and said with a smile: "Of course, I'm busy modifying the machine, the time is tight and the task is heavy, if it were you, there is a high probability that I would do the same." ”

Thinking about it from another perspective, Zaitao estimated that he was also in a hurry, he didn't dare to let go of the inspiration, and he was afraid of forgetting things if his brain was slightly distracted.

"Yes, it's just hard work Mr. Tesla, so where do we go now?"

"Of course, I'm going to study in France for a work-study class, the first batch is about to graduate, and it just so happens that your destination is France, so you can lead the team over this time, it just so happens that they have also taken a few radio classes, and they can also help you in the middle."

"That's good, then I'll be more at ease."

"But Mr. Tesla is of Serbian descent, so if you have time, go buy some Serbian specialties and bring them back......"

Just when Cheng Nuo was still in full swing preparing for radio-related work, the matter of broadcasting had already been noisy, and the momentum was getting louder and louder.

In addition, at the end of the First World War, we were in the moral victorious country, and it was at a time when public pride was surging, and it caught up with the broadcast that national pride reached an unprecedented height.

The media refused to let go of this hot spot, and Shanghai's "Declaration" and "Oriental Magazine", Beijing's "Morning Post", and Tianjin's "Ta Kung Pao" were all actively publicizing.

"Declaration": Newspapers of various countries, driven by enthusiasm, competed to comment first, thinking that wireless telephones, like angels, would become the most economical and convenient transportation tool between continents, and now Professor Cheng has studied radio broadcasting before the world, which is a landmark event of China's rejuvenation, and the whole country is jubilant......

Oriental Magazine: Radio is a powerful tool for transportation in the new era, a triumphant song of science, and a chapter in the new era, which is the core force that can restore China's decay, and I would like to pay high tribute to Professor Cheng and his Academy of Sciences......

"Morning Post": Today's world events are becoming more and more complicated, and the convenience of transportation has to be studied and improved, but there is no radio broadcast by Professor Cheng that can receive more than 1,000 kilometers of telecommunications, so that Beijing can read the happy news of the European war at the same time......

All of a sudden, all kinds of praise poured in.

(End of chapter)