A Man of Science and Engineering in Troubled Times Wandering in the Late Qing Dynasty

Today's radios are not only functionally improved, but also not too bulky.

Due to the special needs of Morgan and others and limited by technology, their radio devices are basically short-wave devices.

But the advantages of shortwave are very significant:

First of all, the erection of the shortwave radio station is very convenient, and the antenna is not too long;

In addition, and most critically, short-wave radios enable long-distance communication.Theoretically, it relies on high-altitude ionospheric refraction, the transmission distance is very long, and global communication is not a problem, so the so-called "global communication" can be realized.

Of course, this is only a theoretical transmission distance, and power needs to be considered in order to effectively transmit information.

But at the initial stage of radio, the electromagnetic environment is very clean, and the electromagnetic interference is almost negligible. In an ideal environment, short-wave radio stations with low power have good communication distance and quality.

Tesla borrowed Li Yu's electronic triode technology to amplify circuits, which was a revolutionary advancement for radio.

The radio device made this time has a power of about 10W.

Although it doesn't sound like much, it is not a problem to cover the entire North China in the current electromagnetic environment.

Li Yu came to the study, wrote a letter to the newspaper, and sent a report saying that he was going to hold a "product launch event" at the Liuguo Hotel in Dongjiaomin Lane.

Li Yu also sent a special telegram to Beiyang, and they probably would be very interested in this.

The Liuguo Hotel is quite an extraordinary hotel. Although its status is not as high as the Beijing Hotel, but because it is located in the special Dongjiaomin Lane, it has witnessed many historical events.

For quite a long time thereafter, it was a special guest house for the Ministry of Foreign Affairs, and ordinary people could not enter it.

After it was published in the newspapers, the embassies in Dongjiaominxiang were indeed interested. After all, it was appreciated by top financial tycoons Morgan and Rockefeller in the United States.

Coupled with the current supreme status of Li Yu in the scientific community, it is even more exciting.

The British ambassadors, Japanese ambassadors, German ambassadors, French ambassadors, Russian ambassadors, etc. all came by themselves or sent representatives to visit.

And it was Tang Shaoyi who came over from Beiyang.

Tang Shaoyi smiled and said after seeing Li Yu: "Brother Shucai! I have seen so many ministers, what are you going to do this time?"

Li Yu said: "It's a kind of radio equipment, I think Beiyang will be interested."

"Radio?" Tang Shaoyi had never heard of this name.

Li Yu said: "It is a device that can transmit messages without the need for telegraph wires."

"Oh?!" Tang Shaoyi exclaimed in surprise, "Is there such a magical thing?"

Li Yu said: "This is the power of science."

Tang Shaoyi praised: "As expected, I saw you right."

Li Yu added: "If Tang Daotai is interested later, he can directly take one to Beiyang for trial use."

Tang Shaoyi said: "Then I owe you a favor again."

Li Yudao: "I also owe Tang Daotai a favor."

Tang Shaoyi asked: "You owe me?"

Li Yu already knew from De Ling that Tang Shaoyi helped him get rid of the hair-cutting turmoil. He pointed to his hair and said, "This."

Tang Shaoyi smiled and said: "So you already know. It's a trivial matter, nothing to worry about."

"This is not possible," Li Yu said, "and the radio device is indeed very useful, not only in daily life, but also in military affairs. Daotai will know when the time comes."

In fact, the telegraph had already played a big role in the war in the late Qing Dynasty. This thing was much faster than the eight hundred miles.

Tang Shaoyi said seriously, "I understand."

Li Yu whispered to him, "Tang Daotai, play by ear."

Before Tang Shaoyi had time to ask what was going on, the waiter at the Liuguo Hotel came over and said, "My lord, it's almost time for people to arrive, you can start now."

Li Yu walked into the hall, and envoys or representatives from various countries were already seated below.

He laid out the radio and began to explain its function:
"Everyone must know the telegraph, and it will be used for domestic communication. A year ago, the telegraph line was just laid in the Pacific Ocean, but the device in front of you can break away from the shackles of the telegraph line, and can send and receive information anytime and anywhere."

This function of "receiving and sending information anytime, anywhere" is almost a killer function for ministers stationed abroad. When they heard Li Yu's words, many people immediately couldn't sit still:

"Can its transmission distance reach Europe?"

The interviewer was the British Minister Sir Satoshi.

Li Yu said: "If you can build a few base stations halfway, it will be fine."

There is no shortage of colonies in Britain now, and Sir Satoshi felt that there was something interesting when he heard it, "If it is true, I will be very interested in buying it."

Li Yu said: "Mr. Morgan in the United States has used it to receive news from the United States in Europe."

"It depends on the equipment that you don't have a telegraph wire in your hand?" Japanese Minister Yasuya Uchida asked.

Li Yu said, "That's right."

Uchida Yasuya asked eagerly again: "If it is from Japan and Beijing, can it also be used to communicate?"

Li Yu replied, "Yes."

"Yaoxi!" Uchida Koya couldn't help standing up, looking at the radio equipment in Li Yu's hand, "Great!"

Li Yu demonstrated to them how this set of equipment transmits and receives, and it already has a preliminary mobile radio function.

Uchida Yasuya didn't wait for Li Yu to finish his demonstration, and said, "I want to buy it! How much is it, please set a price."

British Minister Sa Daoyi said: "Mr. Li Yu hasn't finished the demonstration yet, so Minister Uchida is a little anxious."

Uchida Yasuya knew that it was not easy to make this thing, and the technical content lay there, basically the existence of the communication ceiling in the early [-]th century.

The key point is that Japan's current embassy in China also plays the role of an espionage agency. Uchida Yasuya himself has close contact with Kawashima Naniwa of the Black Dragon Association and Japan's first-generation espionage chief Aoki Norijun.

They often need to contact the domestic base camp, and their requirements for communication are very high.

Li Yu actually caught their minds, and his target today is people like Japan.

Li Yu was not afraid to sell to them at all, because unlike the cable telegraph, the signal modulation was very difficult, and there were not small technical barriers.Every special device will have a special encoding system given by Li Yu, and they will not break through this technology for many years.

Although it seems very simple in later generations, it is a typical information gap and dimensionality reduction attack at present.

Even if they can do encryption only a few years later, they will be able to develop cryptography talents by then.

Li Yu only needs to have a special receiving device, and he can know the Japanese Xiao Jiujiu without anyone noticing.

Damn it!You have to use some tricks to mess with them, or else you have been studying science and engineering for so many years.

Japanese Minister Yasuya Uchida said: "You don't need to finish listening, I have already done some research, sir just ask for a price."

Uchida's approach caused dissatisfaction among other ministers, but Uchida insisted on this, because for Japan, the need for espionage is now becoming more and more urgent.

Seeing that he insisted on this, Li Yu had no choice but to say: "The cost of manufacturing and transportation is very high, and the output is very low now. There is only one set at the moment, and it costs 2000 silver dollars."

This is a high price, much more expensive than it was for Rockefeller, but it is also very expensive, because this system can send messages, not just receive them.

British Minister Sa Daoyi said first, "I want it."

The British's desire to control the colonies is also not low.

Uchida Yasuya was dissatisfied and said, "It was the price I asked first."

Sa Daoyi spread out his hands: "Everyone present can buy it."

Uchida Yasuya said: "Then I will add 500 silver dollars."

Sa Daoyi smiled and said, "Minister Uchida is treating it as an auction? It's interesting, I'll accompany you, and I'll add another 500 silver dollars."

Their minds were the same as that of Rockefeller and others at that time. They had a reason to get it as soon as possible, and they would not care about the premium of a few hundred silver dollars.

Uchida Yasuya raised his hand: "Continue to add 500 silver dollars."

Li Yu looked a little funny, but he didn't expect them to fight.

Not to mention some of the hunger marketing strategies I saw personally back then were really useful.

Tang Shaoyi in the back was also watching the excitement with a cigar in his hand.

Daoyi Sa got angry: "I'll add another 500!"

These people have 500 silver dollars in one hand, which is really generous.

Uchida Yasuya said: "Don't argue, I will offer 8000 silver dollars!"

The price has already quadrupled, and Sa Daoyi has participated in the auction before, so he is not willing to increase the price, because Uchida in front of him is like a gambler.Besides, Britain and Japan belong to an alliance now, and I don't want to push him too hastily.

Uchida Yasuya finally breathed a sigh of relief when he saw that no one responded. This is considered to be over budget, but he is willing to do his best for the cause of the Great Japanese Empire.

Unexpectedly, Tang Shaoyi took a sip of his cigar at this time, raised his hand and said, "I'll add another 1000 silver dollars."

Uchida Yasuya almost vomited blood, who the hell!
He gritted his teeth, knowing that the current situation between Japan and Russia was already very tense, and he couldn't delay it, so he said bitterly, "I'll add another 3000 silver dollars, does anyone want to add more?"

Tang Shaoyi took a long breath: "Minister Uchida please."

The original price of 2000 was raised to 12000.

Even if Uchida Yasuya feels a little wrong and a little bit at a loss, he can only accept it.

Li Yu smiled and said, "Congratulations to Minister Uchida."

But Uchida said: "You can show me how to operate again."

A set of radio equipment consists of two pieces of equipment, which are mainly the setup of the radio station and signal modulation. Li Yu explained it to him again, and then said: "There is also an instruction manual in it. If you study it carefully, you will be able to master it in a short time. "

Uchida Yasuya listened very carefully and took care of everything before leaving.

Unexpectedly, just as Li Yu was about to leave, Russian Minister Resal hurried to him: "Your Majesty, I'm sorry, I just arrived."

The Russian envoy was not present just now, but a counselor from the embassy came. After seeing the Japanese buying it, he quickly went back and told the Russian envoy himself.

The Minister learned the price from the Counselor, so he said: "May I also order the same equipment at the same price?"

Li Yu pretended to be embarrassed: "It is possible, but the delivery time needs to wait a bit."

The Russian envoy said: "I can add more funds, as long as His Excellency Emperor Shi can provide us."

Li Yu paused for a while before saying, "Okay."

The Russian envoy said happily: "Your Majesty, Emperor Lao!"

Li Yu just had to give these big powers some sweetness and make them think that they could buy good advanced equipment and protect themselves. Otherwise, they would hide too much and really wonder what extreme things the Japanese would do.

After all, now that the Japanese are eyeing themselves, they have to adopt some strategies.

The best way is to control the other party first by relying on brains and poor information.

However, it should not be said, there is really no guilt in being a "profiteer" in front of these people.

But Li Yuding's 2000 silver dollars is actually quite reasonable in the absence of production capacity, and the latter price is what they are willing to add.

Why do they hide so much dark greed in their hearts.