This child is a student of Shenzhou University, his name is Sulda, this Surda was particularly obsessed with steam engines and other power engines when he was in college, and when this wired telephone was developed, he was deeply infatuated with this thing that can talk.

But there is a practical problem in front of Surda, that is, no matter how far the phone can go, it must be connected by a wire, which is very limited.

Suerda worked hard for more than three years to develop, and finally made a breakthrough in the transceiver device, and his breakthrough can completely realize wireless telephone calls.

In the face of such talents, Ling Yunfei couldn't be confident, which made him have greater confidence in the improvement of the technical level of Shenzhou Kingdom.

At this time, Ling Yunfei could also understand why this principal would spend so much effort to bring this student to meet him, because this principal understood that Suerda's invention was very likely to change the limitations of the telephone.

Ling Yunfei took Suerda with the drawings and his simple but not simple invention device to find Zhou Shiqiang.

Zhou Shiqiang looked at Surda in front of him and immediately focused his attention on Surda's invention.

Perhaps out of sympathy, Surda stepped forward to explain without the slightest stage fright.

Ling Yunfei understands that this is the self-confidence that a scientist should have, in the eyes of scientists, there is only science and technology, and there is no ordinary person's tiptoeing in the face of the powerful.

"Here's a current receiver that takes the current in the phone, amplifies it, transmits it again, and then it gets to be received by the transceiver here, and then it transmits it again."

Zhou Shiqiang then said: "It was passed back and forth, and finally it was passed on the receiver's telephone receiver, and we could hear the words." ”

"That's what it looks like, but my transceiver isn't perfect."

"No, kid, it's perfect enough."

Zhou Shiqiang looked at Surda, holding Sulda's hands tightly, eager to hug Surda and take a bite.

"Alliance leader, this kid is what our Academy of Sciences wants."

"I agree very much, because just now I already had the intention of letting him enter the Academy of Sciences, you are the number one in the Academy of Sciences, you will no longer be assessed."

"Assessment, what else is assessed, alliance leader, it won't be long before you can talk to the distant Cape of Good Hope, the people of Shenzhou stationed there."

Ling Yunfei's eyes lit up and he nodded.

After Ling Yunfei left, he immediately went to find Yixiu.

"Mr. Ikyu, the world has been unified, and a child in Shenzhou University actually made his own radio transceiver."

"Oh? Very good. ”

"The principle of this transceiver is actually very simple, but for them, it is not easy to manufacture, the propagation distance will not be too far, as long as enough transceiver bases are established, wireless communication can be realized."

Ikyu stood up and nodded:

"I know what you mean, do you think that this kind of sending and receiving is only a short-distance signal contact, and does not use the ionosphere, if it is used, the communication will be simpler, but you also know that using the ionosphere, it is easy to spread the electromagnetic signal of the earth to the universe, so that the probability of being discovered by aliens will increase."

Ling Yunfei smiled: "Mr. Yixiu, in fact, you also know that we are just unifying the world in the name of defending the earth, and I also want to unify the world, you also know that in the world before me, the birth of the earth has been almost billions of years ago, and there are no aliens coming, why do you think that aliens in our time will come." ”

Ikyu smiled: "I understand what you mean, but you also know that the earth is billions of years old, but the use of electromagnetic waves on the earth is not long, only a hundred years, right." ”

Ling Yunfei imagined the same.

"That's right, you're an alien, you found this place with Voyager One, not electromagnetic waves."

"I don't want to quibble with you, you know, electromagnetic waves are sure to attract the attention of aliens."

Ling Yunfei nodded: "I understand, I didn't quarrel with you today, I just wanted to use the technology of ionospheric electromagnetic waves to make global communication normal, I thought about it, such radio waves are very smooth on the earth, but once they leave the ionosphere and enter the universe, they will attenuate, and the electromagnetic waves of this ability can't even leave the solar system." ”

Ikyu smiled:

"You mean, you think the solar system is lonely and there are only us in the solar system?"

Ling Yunfei was stunned: "Isn't it?" ”

"Ling Yunfei, you have the same vision as the earthlings, you are ignorant and ignorant."

When Ling Yunfei heard this, he was a little angry, after all, he was the leader of the Earth Alliance, but after thinking about it, Yixiu said that he was a mouse-eyed, which was also very appropriate, after all, his farthest distance was to the Cape of Good Hope and the North and South Poles, and Yixiu, I don't know how many galaxies he had crossed, this kind of analogy can't be the same as the same day, saying that he is a mouse-eyed, that is to praise himself.

Ling Yunfei looked like he was asking for advice.

Yixiu said: Just before you, the world was developed in science and technology, and the average spacecraft was only three or five hundred kilometers from the ground.

"Ling Yunfei, you can think about it, even if you landed on the moon, did you investigate the entire place of the moon? No, your aircraft didn't encounter any anomalies in the process. ”

At this time, Ling Yunfei suddenly thought of the memoirs of some astronauts, many of them, and they didn't dare to imagine it, even Yang Liwei, an astronaut from his own country, said that he had heard a mysterious impact sound.

"You humans are so small." Ikyu said.

Ling Yunfei immediately asked, "You mean, there are moon people on the moon?" ”

Yixiu looked helpless: "That's right, there is your Chang'e." ”

Ling Yunfei knew that he had asked the wrong thing: "You are saying that it is very likely that in addition to us, the solar system also has intelligent planets. ”

Ikyu nodded and shook his head: "You know, my spaceship is scrapped, and I don't have any means of detection, so I really don't dare to confirm this." ”

Ling Yunfei shook his head: "If there are intelligent planets in the solar system, then the previous world should be discovered?" ”

"You're still an old problem, how can you find out, in case people don't want to be discovered, it's hiding, or human technology can't reach the level of discovering people."

Ling Yunfei felt that what Yixiu said was right, and nodded.

"But I still want to invent radio, because with this, our technology will take a leap forward and research can be well shared."

"The development of radio, electromagnetic waves, and then to wireless video, computers, the Internet....... Do you want to follow the path of the previous world? ”

"Big deal, I didn't invent nuclear weapons."

Ikyu shook his head: "This, you can't control it, now, I just want to tell you a secret that Daji has never told you." ”

Ling Yunfei suddenly became interested:

"What's the secret?"