In the research laboratory of Dayang Group, many teenage faces are busy in earnest. These people are the elites jointly cultivated by Beidou University and Dayang Group in recent years.
Three special-purpose telegraph machines are ticking; these three telegraph machines are more complex and larger, and many of their parts are replaceable.
Zhang Hao just gave some 'guesses', and these elites were able to demonstrate and test them.
The general person in charge of telegraph research is Ge Dong...'s disciple: Tang Tiandong. This is a young man who is only 16 years old, but he has already held up the sky of the communication system.
There are two types of experiments being conducted at this time. One is: research on ultra-high power, long wave and ultra-long wave communications; the other is research on short wave.
Long-wave communication, because of its long wavelength, weak attenuation, and strong penetrability, can propagate very far. The only problem is that because the earth is curved, communication will be affected if the distance is too long. In fact, this is also a powerful reason for the current round earth theory.
prove.
There is another one that Zhang Hao recently pointed out: shortwave can also carry out long-distance communication, but in a completely different way, relying on electromagnetic layer reflection!
In fact, under normal circumstances, Zhang Hao shouldn't point this out before discovering the geomagnetic field, solar radiation, ionosphere, etc.; but isn't the current situation special? Although it is a bit irritating, it shouldn't hurt to do it once in a while.
The test has been carried out for three days. The long-wave communication is fine. As long as it has high power, long-wave communication is fine. It is not necessary to add an ultra-high signal transmission tower. The current signal transmission tower is already up to a thousand meters. Countries are building such signal towers.
Some are even built directly on the mountain.
For example, the tallest signal tower of Dayang Group is at least 8,000 meters above sea level. It was built on Yuyang Mountain, which was once the main peak of Jiuyang Sect.
The tallest signal tower in the Qixia Kingdom was built by the state in the Jingshan Mountains. Under the Queen's order, a full 400,000 tons of black steel and part of the steel were used as the skeleton, and hundreds of transformational gods (golden bodies) were used.
Realm), plus the height of Jingshan itself, the signal tower is tens of thousands of meters high.
The world of cultivation has created too many miracles by using powerful cultivators. Nowadays, signal towers with a height of more than 10,000 meters cannot be said to be common, but there are also quite a few. Such as the Kingdom of Shaoze, the Kingdom of Canglan, the Red Lotus Sect, etc.
Most big countries with overseas fleets or holy lands have this crazy building.
But electromagnetic layer reflection is troublesome. Zhang Hao only remembers that there is such a thing, and it is shortwave. As for the shortwave frequency, emission angle, etc., he doesn’t know. At that time, I only remembered a few things from watching some popular science programs.
In contrast, long-wave communication is a simple and crude example, while electromagnetic layer reflection technology is a high technology in telegraph technology.
At this time, Dayang Group did not have much theoretical guidance and was completely forced to study. Under this situation, Dayang Group could only 'summarize technology from experience' instead of directly deriving technology from theory.
So this time we can only continue to experiment, collect data, and finally make a final decision.
The technology obtained through such research is very fragile, because it can only be adjusted based on a small amount of data in the future. On the contrary, if the technology is based on theory, it can be adjusted at will and reach its peak.
But for the time being, there is no better choice. Moreover, such an experiment once in a while is actually very helpful to Dayang Group's scientific research.
Signals are sent out continuously, and the messages sent out at different angles and wavelengths are different every time. The base station that receives the signal from a distance and belongs to the Ocean Group will send the received signal back. The signal of this test is not required to be forwarded.
Whoever receives it will send it back.
Today, Ocean Group's base stations have reached as far as the southern section of Taotu Island and West Kunlun; both places are 30,000 kilometers away.
There is also Xuanwu Mountain, which is about 40,000 kilometers away.
Signals are sent out in waves, at different angles, wavelengths, and directions, and must undergo repeated testing.
The sound of Didi sounded in the laboratory, and information kept coming back. The recorder needed to record each piece of information and then mark it on the map.
This was a boring process, but Zhang Hao watched it with gusto this time and waited quietly beside him.
Until the evening, I got a rough data: using ultra-long wave communication, the distance can reach 20,000 kilometers. Problems will start to occur any further away. Sometimes, even if the message can be received, the signal will be lost.
However, using shortwave communication of 10 meters to 100 meters, within the appropriate angle range, the electromagnetic signal should not be too weak or too strong, and it can be transmitted to 40,000 kilometers away!
In the experiment just now, we actually received a return signal from Xianshan Mountain far away in the sea! However, the return signal returned after two transfers.
"Can it really happen?" Tang Tiandong looked at the data in shock.
He has been working on ultra-long wave communication before; however, long wave and even ultra-long wave communication have encountered bottlenecks. The voltage continues to increase, and the signal towers continue to rise, but the effective distance of the signal increases, but it becomes more and more difficult. The signal of long-distance communication is lost.
The situation can no longer be ignored. A piece of information has to be sent several times, or even a dozen times, before it can be conveyed.
Zhang Hao looked at Tang Tiandong's surprised expression and smiled, "Tiandong, we will study the technology later. In a few days, I will personally explore the second level of the Immortal Mountain. There are still five days left. Look at the five days.
Can a new telegraph system be built?"
"Good teacher." Tang Tiandong called Zhang Hao his teacher, because Zhang Hao had indeed taught him personally, as well as many students from Beidou Academy.
In this world, there is the idea that "once a teacher, always a father", Zhang Hao must make good use of this fine tradition.
The next day, Zhang Hao was dealing with something, but someone came to report that Zhou Jue and Liu Qingqing were visiting.
Zhang Hao was immediately shocked. Why did this new couple come here?
"Come and get the drawings!" When we met, Liu Qingqing was generous and direct, asking for the drawings. "Mr. Zhang, the day before the wedding, you promised to give Honglou a complete technical data on the battleship. This is half
It’s been more than a month, where is the information?”
Zhang Hao smiled: "What do you think it's about? It's just for this matter. Half of the materials have been prepared. Since my sister-in-law is here, let her take away the half of the prepared materials first."
"Okay." Liu Qingqing didn't know how to be polite. I turned around and flirted with Zhou Jue. For what reason, wasn't it because of the connections behind Zhou Jue: Xinglin Tang, Dayang Group, etc.
Zhang Hao asked Zhou Jue and Liu Qingqing to sit down, picked up the phone on the table and made a call. Then Zhang Hao said to Zhou Jue and Liu Qingqing: "Brother, sister-in-law, wait a moment. The information is at the shipyard.
, that is, the seaside, it will take at least two hours to deliver it here."
You can do a lot of things in two hours. For example, Liu Qingqing took the opportunity to ask about the management situation of Zhang Hao Commercial Group.
Zhang Hao now has time, so he is not in a hurry and talks to Liu Qingqing in more detail. Of course, they are all in the general direction and specific, especially those involving the operation of Dayang Group. Moreover, Honglou and Liu Qingqing will not talk about it.
Dayang Group is different. Some experiences in Red Mansion are not only useless, but may be harmful.
But even so, Liu Qingqing listened carefully, and in the end even took a pen and paper from Zhang Hao's desk to record it.
Zhou Jue also listened with great interest. Now Zhou Jue is no longer involved in the situation of Dayang Group or Xinglintang. He is now his own household minister.
Now the Ministry of Household Affairs has been changed to the Ministry of Finance, which is also responsible for taxation, etc. The original functions of population statistics and other functions have been assigned to the new department.
Listening to Zhang Hao talk about the business situation, it is indeed crucial for Zhou Jue. Today's capitalism still has many contexts that are elusive.
Capitalism broke out too suddenly and developed too rapidly. All kinds of new things sprung up like mushrooms after a rain. In addition, capitalism also triggered changes in the country and the times, and there were so many things.
After talking about it for about two and a half hours, the information was delivered. The secretary called first and made sure it was convenient for Zhang Hao, and then someone brought the information in.
Boom...
Boom...
Wooden boxes of almost 1.2 meters each are placed on the ground, a total of 8 of them!
Liu Qingqing was stunned, "This...is the blueprint of a battleship? Didn't you bring all the information about the battleships in the port?"
"To be precise, they are technical drawings, including design, etc. And this is indeed the information of a battleship, but it is only 60%. The remaining 40% is still being sorted. My sister-in-law can open it and take a look."