A civilization that can communicate with space as a carrier should have a high level of civilization. According to the model established by Li Yu himself, he speculated that this civilization could at least fly out of the river where it is located, and their navigation mode should be mainly space jumping.

But the information that Xiao Wei deciphered made Li Yu unable to believe it. It was like the President of the US took Air Force One specifically to a small tribe in Africa and randomly found someone to say hello to him.

Lin Wanbai believes that this is the same as the ability of Earthlings to communicate with aliens in the vast universe through radio, and Li Yu agrees quite well with this.

After thinking about it, neither Li Yu nor Lin Wanbai could speculate on the intentions of the aliens behind this signal.

"Get in touch with them and all questions can be answered." Lin Wanbai made a suggestion, and Li Yu kept a cautious attitude towards this suggestion.

After measuring the gains and losses of contact with this civilization for several days, Li Yu was still preparing for contact work first, such as building a space signal transmitting device, adjusting the reception accuracy and range of the space detector, in order to receive more information from this civilization, and at the same time calculate the position of this civilization in the universe.

At the same time, see if the other party will send more information.

It is not a simple matter for Li Yu to build a space signal transmitting device. It is not easy to receive and transmit space wave signals. It is easy to receive, but it is not easy to transmit.

Li Yu's previous space detectors only play an acceptable role and cannot transmit space wave signals.

This is like a submarine, which can receive ultra-long wave signals emitted by the base, but it cannot emit ultra-long wave signals. The conditions required for ultra-long wave signal transmission are too high.

Ultra-long-wave and extreme-long-wave transmission facilities are very large, covering an area of ​​several square kilometers, and the transmitting antenna requires dozens or hundreds of kilometers. This antenna cannot be installed on the submarine.

Li Yu can optimize the space wave signal device. Despite this, the materials and space required will not be small, and this cannot be rushed.

After making a preliminary estimate of the space wave signal transmitting device, Li Yu sent Fang Qianmo an email list of rare metals and other materials he needed.

Shortly after the email was sent, Li Yu received a call from Fang Qianmo. It seemed that Fang Qianmo was still paying attention to Li Yu's message, "Li Yu, what experiment are you going to do? Good guy, all of them are rare metals and rare materials, and they can't be bought without a channel, and the price is particularly high."

"So I'm looking for you. Your current company also needs these materials, and there is a channel to buy this thing." Li Yu said calmly.

"My company needs these things, but the amount is not that large. The amount on your order is enough for my company to spend more than two years."

Although Fang Qianmo was curious about why Li Yu needed so many rare materials, she still agreed to Li Yu's request, "I can help you purchase things on the list, but can you tell me what experiment you are going to do?"

"Prepare to do an experiment. If it goes well, you can contact aliens." Li Yu did not keep the content of the experiment confidential.

Unfortunately, Li Yu told the truth, but Fang Qianmo didn't believe it: "Let's just pull it, forget it if you don't want to say it, but if you can use it in this experiment, I will buy it!"

Li Yu frowned slightly and agreed: "Yes, but you may be disappointed."

"It doesn't matter, this time it won't be possible next time. Hey, Li Yu, has the equipment in your laboratory been installed?" Fang Qianmo was still thinking about Li Yu providing him with experimental equipment.

"Not yet, but it should be almost done by the end of the year."

"Well, I'm not in a hurry to ask for equipment now. My laboratory is still in preparation. If I can supply equipment before the end of the year, it will not be much different from my progress. So that's it. Is there anything else?"

"Not here, goodbye!"

Fang Qianmo listened to the beeping sound from her phone and secretly curled her lips, "A boring man."

Fang Qianmo's work efficiency is very high. A month later, Li Yu received what he wanted and the bill, "50 million!? It's okay" a total of ten kilograms of materials. The price of 50 million is actually very fair. If Li Yu bought it himself, the price would definitely exceed that of Fang Qianmo.

Within a month, Li Yu and Lin Wanbai's focus was on the information received on the special frequency of the space detector. They found that the information was constantly playing the sentence loop, and it was always sent once every 24 hours apart.

Found that the information was just repeated continuously and there was no more content. In addition, Fang Qianmo's materials also arrived, Li Yu decided to build the space signal transmitting device first.

Li Yu has made materials of different proportions to allow Lin Wanbai to test the performance of the materials.

The eleven-year-old Lin Wanbai's height of 1.5 meters is not low among her peers, but when Li Yu built a laboratory, she did not consider that any children would join the laboratory, so Lin Wanbai would take a small stool when doing many experiments, and she was very resentful about this.

Li Yu disagrees with this. People always grow up, right? Just overcome the difficulties now.

I came to the material analysis room and put the sample that Li Yu had made into the material analysis cabinet, and then said: "Xiao Wei, test and analyze the sample No. 3 according to the third standard."

As soon as he finished speaking, Xiao Wei's voice sounded: "Okay, Miss Wanbai." Then, the material analysis cabinet started running, and at the same time, various information of the sample was projected by Xiao Wei in front of Lin Wanbai, forming a light screen, and the information on the light screen was constantly refreshed.

In science fiction, it is more sci-fi than the holographic projection in science fiction movies. Lin Wanbai performs various operations on projection, and the force field feedback technology allows her to perform various operations, amplification, combination, and simulation on holographic projection. Li Yu even plans to experiment with atomic simulation in holographic projection.

"It looks fine on the outside, but from the atomic structure, if the temperature is higher than 50 degrees, it will cause scattering interference to energy conduction and lose 15% of the energy. It seems unqualified. Xiao Wei sent the result to Li Yu to see if he can improve the energy scattering loss problem at high temperatures of sample No. 3."

"Okay, Miss Lin! The result has been sent!"

Next, Lin Wanbai began to analyze sample No. 4. When the day ended, all the five samples Fang Qianmo had various problems, and the experimental results were not ideal.

In the evening, Li Yu and Fang Qianmo discussed and summarized the situation. Li Yu frowned and said, "That is to say, according to the existing materials, if the requirements are to be met, the signal transmitting device must be large-scaled?"

Lin Wanbai was also a little unhappy: "Yes, if the device is larger, the laboratory will definitely not be able to put it down. Or the laboratory equipment is upgraded, and the existing equipment manufacturing cannot meet the requirements to form a base, and can only be divided into four pieces and then put together, but the energy loss of the pairing pair is too great."

"Well, it's this problem. You have another problem that you haven't noticed. The dissipation of energy will form an abnormal electromagnetic energy outbreak, which will affect all the surrounding electronic devices and even cause devastating losses. I'll find another way to go."

The problem facing the space signal transmitting device is the material problem. In order to reduce energy loss, Li Yu raised the critical temperature of the normal temperature superconducting material to 80 degrees Celsius.

In the past, for Li Yu, the problem of increasing the force temperature of superconducting materials was no longer a problem. The advancement of material synthesis theory has allowed Li Yu to find a more suitable way to synthesize superconducting materials. If he is willing, it is not a problem to increase the critical temperature of superconducting to 100 degrees Celsius, and it can be higher.

Existing superconducting materials are already available, and it is not worth the time to increase. If necessary, they can be synthesized at any time.

To optimize the launch device, it can be considered from the perspective of materials and energy. Improving the purity of the material can reduce energy loss, and improving the purity of the material must upgrade the production equipment. Upgrading the equipment is not a single upgrade. Almost all relevant equipment in the laboratory must be upgraded, and this time takes at least one year. Not to mention that the equipment in the new laboratory is Li Yu’s just one year, what if aliens stop contacting? This risk cannot be taken.

The energy intensity can also be increased. Li Yu, the nuclear fusion device can be further miniaturized and its volume can be reduced by two-thirds. The signal transmitting device can accommodate more miniaturized nuclear fusion devices and provide more energy. Unfortunately, after calculation, the energy intensity of existing materials withstands is upper limit, and at most fifteen nuclear fusion devices can be installed.

Li Yu and Lin Wanbai looked at each other: "It seems that they can only install signal transmitting devices outside the laboratory."

Because existing materials do not meet the required purity, the signal transmitting device will generate energy dissipation when transmitting the signal. The energy dissipation will cause abnormal electromagnetic wave disorder within a range of 30 to 100 kilometers around the signal transmitting device, which will interfere with normal electromagnetic communication signals.

The existence of this problem makes Li Yu choose few experimental locations. Lin Wanbai proposed to place the experimental location on the sea, and Li Yu rejected her opinion. Although Li Yu has solved all the problems of building aircraft, he has no place to manufacture.

The small aircraft built for Lin Wan's operation in the provincial capital was only five meters long, two meters wide, not large in size, and only one ton of load. It can also find ways to solve the production and storage site. However, the equipment required for this experiment is not only large in size, but also heavy in weight. If it is transported by a vehicle, the required aircraft will be five times larger than the aircraft carrying out the mission.

Looking for a transportation company or renting a boat? Li Yu and Lin Wanbai looked at each other, and it would be difficult to solve the confidentiality work. If the matter was revealed, they would be peaceful forever. The conditions for going to sea to do experiments are not met.

For safety reasons, the vicinity of Ze'an County cannot be considered, nor can it be done at sea. Lin Wanbai proposed another solution: "Li Yu, if you build a small power signal transmitter that can cover the world, the material requirements for the whole country will be reduced much."

Li Yu reacted as soon as he heard Lin Wanbai's words, "You mean we can divide the signal transmitting device into two parts, place the transmitting part elsewhere, and place the receiving part in the laboratory. These two parts are transferred through small signal transmitting and receiving devices?"

Lin Wanbai continued Li Yu's words, "The low-power signal transmitting device will not cause energy dissipation, and the signal can cover the world. In this way, even if an accident occurs during the experiment, our laboratory will not be exposed. In this way, there will be more room for selection in the location of our experiment."
Chapter completed!