Liu Jin came here with an extremely excited expression.
"Wireless telegraphy has finally been developed!"
"The wait is too long!"
No wonder Liu Jin was so excited. Ever since the phenomenon of electromagnetic induction was discovered, Liu Jin had been waiting for scientists from the Ming Dynasty to research wireless telegraphy as soon as possible.
Because the huge Ming Empire needed this technology so much.
The Ming Empire was too big, and communication between various regions was too slow.
From Nanyun Province to the capital of Ming Dynasty, even if it takes 800 miles to rush and rush to deliver the message, it will take at least half a month to arrive. This time, it will take a month.
.
If it were to be transmitted to the more distant Golden Continent, it would take even longer.
In this short period of time, the problem is not very serious, but as time goes by, it can easily lead to divisions within the Ming Empire and breed separatist forces.
Therefore, there is a special need for a means of transmitting information efficiently, and the most ideal one is naturally wireless telegraphy.
Its scientific and technological content is not high. With the development of electromagnetic technology, it is not difficult to develop wireless telegraphy. Especially Liu Jin knows some knowledge about wireless telegraphy and constantly provides guidance.
Now we have finally developed wireless communication technology.
"Mr. Liu~"
The president of Imperial College, Lai Ji, and the personnel related to electromagnetic communication technology respectfully waited for Liu Jin's arrival.
"No need to be polite, just take me to see our wireless telegram."
Liu Jin quickly waved his hand and said.
"Mr. Liu, please come this way~"
Lai Ji said respectfully, Liu Jin is now the cabinet minister of the Ming Empire. He is also the founder of Imperial College, a self-help person, and a sponsor of radio-related technologies.
Liu Jin funded the establishment of electromagnetic laboratories at Imperial College, Daming Institute of Technology, School of Mechanical Engineering and many other colleges, allowing many people to study electromagnetics in order to develop wireless communication technology as soon as possible.
"How did you do it?"
While walking towards the laboratory, Liu Jin also asked in detail.
"Go back to Mr. Liu~"
"The electromagnetic laboratory of our school has discovered through repeated experiments and research that by continuously closing the circuit, an oscillating current will be generated in the circuit under electromagnetic induction. The frequency of this oscillating current is very high, and can reach several times per second.
Millions, tens of millions of times.”
"Under such circumstances, we continued to conduct research and confirmed the existence of electromagnetic waves. This kind of electromagnetic wave is invisible to us with the naked eye. Its propagation speed is very fast, almost comparable to the speed of light."
"So we thought about whether we could use this electromagnetic wave to transmit information, so that instant communication over long distances could be achieved."
When talking about this matter, Lai Ji was very proud and began to talk to Liu Jin non-stop about the principles of electromagnetic communication.
"Oh, there are also electromagnetic waves~"
Liu Jin naturally seemed to understand something. He obviously knew everything, but he still pretended not to understand.
"Of course, the biggest credit for being able to develop this long-distance communication technology is the current Crown Prince."
"He was the first person in the field of electromagnetic research, and he was also the first to discover the existence of electromagnetic waves."
Then, Lai Ji mentioned classmate Zhu Houzhao.
Hearing Zhu Houzhao, Liu Jin couldn't help but raise his eyebrows slightly.
This prince who is not doing his job, his biggest hobby now is to build people and study various mechanical and electromagnetic technologies. I didn't expect that he could actually make contributions and achievements in the field of electromagnetics.
"We have already conducted short-distance communication tests beforehand. We invite you here this time to test long-distance communication."
"His Royal Highness is currently in Huairou County, and we are in Xincheng, South District of Beijing. The distance between the two parties is already very far. If effective communication can still be carried out, this shows that electromagnetic communication technology is indeed reliable."
"Then in the next step, we will conduct longer-distance tests and conduct in-depth research in related fields to develop feasible and reliable electromagnetic communication technology."
Lai Ji introduced it in detail.
In fact, this technology has been researched and is currently in the testing stage. It has been tested previously. This time, the distance is farther away for testing.
There is a distance of hundreds of miles from Huairou County to Xincheng Imperial College in the southern district of Beijing. If electromagnetic communication can be achieved over such a long distance, it also means that it can be further amplified to further distances. test.
This also means that unlimited electromagnetic communication technology has unlimited value.
If electromagnetic communication technology can be used to transmit information from Nanyun Province to the capital in a very short period of time, then the Ming Empire's control of the entire huge empire will become easier and simpler.
There is no longer any need to use the eight hundred mile expedited method to transmit information as before. Not only does it consume a lot of manpower and material resources, but more importantly, the speed is too slow and cannot keep up with the development needs of the Ming Empire.
Soon, under the leadership of Lai Ji, Liu Jin came to the electromagnetic laboratory.
Before entering the laboratory, Liu Jin noticed the telephone poles erected high above the laboratory building. There were many densely wound copper coils at the top, which should be devices used to receive signals.
"Liu Gong, this is a device used to receive the other party's signal. After the other party emits electromagnetic waves, we can receive it through such a device, and then combine it into regular transmission information based on the frequency of the electromagnetic wave and other information. In this way, Unlimited communication over long distances can be achieved.”
When Lai Ji saw that Liu Jin noticed the coil on the building, he quickly explained it in detail.
"That's it~"
Liu Jin smiled and nodded.
I came to the laboratory and took a closer look at their equipment. It was very simple and not complicated at all.
"This is a power generation device. We found through research that cutting a magnetic field can produce electricity, and electricity can also produce magnetism. Then we developed a generator. By letting a person continuously rotate the device in the same way as pedaling a bicycle, it can generate a steady stream of electricity. Constant current."
"This is an electromagnetic signal transmitter. After the current passes through here, it can continuously emit electromagnetic waves into the air. Then there will be a similar electromagnetic wave receiver at the other end. When the electromagnetic waves are propagating, they can receive the electromagnetic waves, and finally form Deliver effective information.”
When Lai Ji introduced it in detail, this device seemed very simple, but it was the most technologically advanced thing in this era.
It is also the result of years of research by many people in the Ming Empire.
"Then let's start~"
Liu Jin listened carefully and combined it with some information from later generations in his mind. Although this device was simple, it was no different from the telegraphs of later generations.
"Yes~"
Lai Jilian nodded and immediately gave the order.
Soon, a strong student began to step on the power generation device. As the power generation device began to generate electricity, the electromagnetic transmitter began to continuously generate electromagnetic force.
Of course, this kind of electromagnetism cannot be seen at all.
After a little adjustment, a specialized student began to tap a button regularly, which reminded Liu Jin of plots he had seen in later movies.
The sound of Didi, Didi, Didi was very rhythmic. Everyone held their breath and watched quietly. At the same time, they were also quietly waiting for Zhu Houzhao's response from Huairou County.
On the other side, here is Zhu Houzhao's electromagnetic laboratory in Huairou County.
Student Zhu Houzhao is also excitedly waiting in the laboratory at this moment. According to the time agreed by both parties, it is almost about to start.
"Didi~Didi~"
Zhu Houzhao didn't wait too long, and regular sounds came from the receiver.
"Haha, here we come~"
Zhu Houzhao immediately laughed happily.
"Huairou, Huairou, this is Imperial College of Technology~"
"Please reply if you receive it~ Please reply if you receive it~"
Looking at the translated information, Zhu Houzhao couldn't help pouting. This must be official.
After thinking for a while, he personally controlled the transmitter, and soon a set of messages was sent out.
Imperial College lab here.
Liu Jin and others were waiting patiently for information from Zhu Houzhao.
It didn't take long for the receiver to respond.
People in the laboratory quickly translated the information.
"Lao Liu, Lao Liu, I am Lao Zhu~"
When the translator translated the information, Liu Jin immediately knew that this must be Zhu Houzhao. He was unmistakable, and he was the only one who could be so casual.
"Ask him how many sons he has now~"
Liu Jin smiled, thought for a while and said.
Soon, a set of information was quickly emitted through electromagnetic waves.
"How many sons?"
"Haha, it is indeed Lao Liu~"
When Zhu Houzhao received the message, he immediately laughed happily.
"Old Liu, I have given birth to forty-five sons, you have to work hard~"
"..."
Liu Jin was speechless immediately. This guy has become a big breeding pig now~