Walking into the institute, the wide streets, green trees, most of the buildings, are designed by well-known architects at home and abroad, both Western architectural characteristics, but also integrated into the oriental garden flowers, the scenery is good, there are not many people in the institute, occasionally appear, are in a hurry, time has become a scientist recognized lack of things.

Walk into the power building, this is a 7-storey building, because it is a real yàn room, each floor is relatively high, more than 4 meters high, so that it looks particularly bright, enter it, and the real yàn room, many are Chinese, Truss nationality is American, but the origin is Serbian, there is no special bad feeling for the Chinese, plus Yang Yuanzhao single-handedly pushed him out of the abyss, out of gratitude, in his spare time, for the assistants to give more guidance, in 2 years, In the electric power building, from Chinese students to students of Western studies, ordinary smart people, a system, and even more than a dozen, can stand out under the guidance of Truss and become independent researchers, and now in the electric power room, Truss has been released, is co-chaired by more than 10 foreign engineers and Chinese engineers and researchers, and the power building has also become a rare place in the research institute area, where the number of Chinese occupies a greater advantage.

The new radio room, just on the top floor, the characteristics of the radio, also the higher the better, here, full of all kinds of machines acquired before, and even include some wired telegraph equipment, all of which are telegraphs, wired and wireless, and also have a lot of commonalities.

When Yang Yuanzhao arrived, Truss was in a nervous situation, with the help of the existing equipment, he modified the cable telegraph, radio, although he wrote down a batch of machines and materials, but Truss's habit is not to wait, to give Yang Yuanzhao something, just let Yang Yuanzhao get it quickly, it does not mean that he can't do it without something.

Looking at Truss's focused appearance, Yang Yuanzhao's face showed a hint of a smile and walked in.

Yang Yuanzhao's movement attracted Truss's attention, and when he looked back at Yang Yuanzhao, he asked with some surprise: "President Yang, have you got all my things!" ”

After coming to the northwest for two years, Truss also learned some Chinese, although the pronunciation is a little strange, but it also expresses his meaning unmistakably.

Yang Yuanzhao thought of Truss's list, his face darkened, and he said: "I didn't get anything, but I got you other things, which will be of great help to wireless telegraphy." ”

What the? Truss raised her eyebrows and said eagerly: "What is it, bring it to me to see!" ”

"It's this!" Yang Yuanzhao pushed the box in his hand forward, Truss saw that it was all made of glass, and some metal was encapsulated in it, he was more familiar with radio, and he was also familiar with things related to electricity, diodes and transistors, even if he saw them for the first time, he could see some of them, compared them, his face changed, and said: "This is something that proves the Edison phenomenon, what is President Yang doing with it!" ”

Truss's tone is a little stiff, just a questioning tone, Yang Yuanzhao doesn't remember Truss's face and expression, it's strange that Truss can have a good face, as a traverser, the person who recruited Truss, he is very clear about the contradiction between Truss and Edison, although after Truss came to the United States, he worked in Edison's company, the difference in concepts, and Edison's exploitation of his engineers, shamelessly pulled the research results of engineers down on himself, Pretending to set up the image of a great inventor, very disdainful, since he left Edison's company, his relationship with Edison was very bad, and when the Nobel Prize tied the two, he refused to accept the award.

Yang Yuanzhao sometimes wonders if it will be official, after the appearance of the tube, Truss did not consider the benefits of the tube for radio communication, and did not study it in depth in the field of radio communication. He knew that the development of later generations, radio transmission, from the very beginning, to the era of electron tubes and transistors, will become smaller and more reliable, and its role in military and other aspects will also become greater and greater.

To develop portable, reliable radios, tubes and transistors are a must.

looked at Truss, and then said calmly: "Mr. Truss, I'm not here to quarrel with you, I just want you to see what these things do for radio." ”

After speaking, Yang Yuanzhao took out some introductions to the use of diodes and transistors, some of which were found by the inventors, and some of which were simply the introductions summarized by Yang Yuanzhao according to the use of diodes and transistors in later generations.

To be honest, the latter is more powerful than the former, how to say it, it is also something that has been summed up after decades of use, and if you let this era explore, I am afraid it will take decades to figure it out.

Truss glanced at Yang Yuanzhao, and said from a certain Cheng dù that Yang Yuanzhao is a noble person of Truss, although he doesn't like the things he took out, but as the person in charge of the real yàn room, he has the final say, opened the report casually, and began to look at it.

He just looked at the report casually, to be honest, what proved the Edison effect, Truss didn't care at all, and even said that diodes would have an effect on radio, and he just listened to it, but after reading Yang Yuanzhao's introduction, especially some bold predictions used, his eyelids jumped, as a scientist, or even an inventor above the level, he knew very well how much impact these introductions would have on radio,

After a little hesitation, he said to Yang Yuanzhao with some doubts: "President Yang, does it really have such a role?" ”

"Isn't this a real room, if there is anything, just test it yourself."

Truss is a research scholar, there are useful things, of course, to personally try it, in the real room, there are all kinds of machines, but simple diodes and transistors, he made the test casually, on the sensitive power testing machine qì, all kinds of numbers are displayed, as mentioned above.

Truss was stunned, silent for a long time, and then sighed in English: "I missed it, I really missed it!" ”

In fact, it is precisely like this, the diode is good to say, in the radio transmission, there is a certain role, but the triode such a natural electrical signal amplifier, in the radio is very widely used, the weak signal after amplification, into a usable, even application of the signal, this has always been the radio application, more difficult problems, when Marconi did radio transmission and acceptance test, it was accepted on the kite, in order to what, is to make the signal have enough acceptance, but now, A small triode can be solved in a large way, and when the signal is concentrated and amplified through the guò transistor, the signal that was difficult to accept becomes acceptable.

"Mr. Truss, do these things still work?"

"Of course, these things are too timely!" Truss's tone was a little excited, as if she was tidying up, and then said: "With these, I will develop a suitable machine in the shortest possible time." ”

At this time, Truss completely gave up her previous ideas, and only thought of the role of diodes and transistors in radio.

"There's no need to be so anxious, by the way, there's one more thing, you can take a look!" Yang Yuanzhao handed out another piece of paper, which was just a simple line of words.

"Ionosphere! What is it? Truss asked, a little confused.

The ionosphere is actually really related to radio, in the early days of radio development, many people just discovered this effect, radio, should be a straight line of propagation, crossing the ocean is just one of his effects, but soon, some people noticed this loophole, you know, the earth is an arc, if the radio is a straight line transmission, from Europe to the Americas, through the Atlantic, and not by boat, it has long been flown outside, flying into outer space.

However, no matter what research has found, the radio is refracted, let alone controlled by the earth's gravity, and there is a difficult problem in the middle.

Aroused the attention and research of countless experts and scholars, and finally, the results came out, some people boldly hypothesized that in the earth's atmosphere, there will be an ionosphere, which can reflect some radio signals to different positions, and since the 20s of the 20th century, more and more people have begun to study the ionosphere, and the ionosphere has therefore appeared in the field of atmospheric and electronic research.

Of course, Yang Yuanzhao knows that the components of the atmosphere, the ionosphere and stratosphere, are all areas that have not yet been discovered in this era.

Some things, really like a little trick in the rivers and lakes, breaking it is nothing, Truss only discovered the radio phenomenon before, and felt that in the case of radio in remote transmission, he has not thought deeply about the advantages of information transmission, in a sense, what he invented is just a principle, and there is not even a physical object,

It is also from Marconi's experiment to cross the Atlantic Ocean, people have paid attention to this aspect, there is the ionosphere, not to mention what the ionosphere is, but according to this assumption, the experiment, with the help of two large transmitters, emitting electromagnetic waves, and then through the receiver at the other end of the guò to accept, from the angle and band of the difference, to distinguish from where and from which direction to emit, although it is said, because of the influence of weather, clouds and many other aspects, this reliability is not high, but after more than ten times of real yàn, The existence of the ionosphere is proved from the side.

Yang Yuanzhao's assumptions and electron tubes have basically cleared the obstacles of the radio transmitter, and in Truss's brighter and brighter eyes, Yang Yuanzhao knows that the radio should not be a problem R1152