According to Li Yu's own model, he speculated that this civilization could at least fly out of the river system where it was located, and their navigation mode should be dominated by space jumping. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

But the information deciphered by Xiao Wei made Li Yu unable to believe it, it was like the president of the United States imperialism took Air Force One to a small tribe in Africa, and randomly found someone to say hello to him.

Lin Wanbai thinks that this is the same as the earthlings can communicate with aliens in the vast universe through radio, and Li Yu agrees with this.

Thinking about it, neither Li Yu nor Lin Wanbai could speculate on the alien intentions behind this signal.

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

After weighing the gains and losses of contact with this civilization for several days, Li Yu still prepared for the contact work in advance, such as building a space signal transmitting device and increasing the receiving accuracy and range of the space probe, in order to receive more information about this civilization, and at the same time calculate the position of this civilization in the universe.

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

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

Li Yu's previous space probe only played a receiving role, and could not transmit space wave signals.

It's like a submarine, it can receive ultra-long-wave signals from the base, but it can't send ultra-long-wave signals. The conditions required for ultra-longwave signal transmission are too high.

Ultra-long-wave and ultra-long-wave transmission facilities are very large, covering an area of several square kilometers, and the transmission antenna needs tens or hundreds of kilometers. This antenna cannot be installed on a submarine.

Li Yu can optimize the space wave signal device, but despite this, the materials and space it requires will not be small, and this cannot be rushed.

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

Soon after the email was sent, Li Yu received a call from Fang Qianmo, it seemed that Fang Qianmo was still more concerned about Li Yu's information, "Li Yu, what experiment are you going to do?" Good guys, all of them are rare metals and rare materials, which cannot be bought without channels, and the price is very high. ”

"That's why I'm looking for you, your current company also needs these materials, and you just have the channel to buy this thing." Li Yu said calmly.

"My company needs these things, but not in such large quantities. The amount on your list adds up to more than two years of consumption for my company. ”

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 the things on the list, but can you tell me what kind of experiment you want to do?" ”

"I'm going to do an experiment, and if it goes well, I'll be able to get in touch with the aliens." Li Yu did not keep the content of the experiment secret.

It's a pity that Li Yu told the truth, but Fang Qianmo didn't believe it: "Pull it, don't forget it if you don't want to say it, but if you can use it in this experiment, I want to buy and use it!" ”

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

"It's okay, it's okay if you don't do it this time, next time. Eh, Li Yu, have you finished installing the equipment in your lab? Fang Qianmo was still worried about Li Yu providing him with experimental equipment.

"Not yet, but by the end of the year it should be about the same."

"Well, I'm not in a hurry to ask for equipment now, my laboratory is still in preparation, and if I can get equipment before the end of the year, it won't be much different from my progress. So be it, is there anything else? ”

"No, goodbye!"

Fang Qianmo listened to the beeping sound from her mobile phone, and secretly pouted, "Uninteresting man." ”

Fang Qianmo's work efficiency was very high, and a month later, Li Yu received what he wanted, as well as the bill, "Fifty million!?" It's okay to "a total of ten kilograms of materials, the price of 50 million is actually very fair, if Li Yu buys it himself, not to mention the trouble, the price will definitely exceed what Fang Qianmo spent."

Within a month, Li Yu and Lin Wanbai focused on the information received by the space probe on a special frequency, and they found that the message was constantly playing the sentence in a loop, and it was always sent every 24 hours.

Finding that the information was just repeated, there was no more content, and Fang Qianmo's materials had also arrived, so Li Yu decided to build the space signal transmitter first.

Li Yu made materials in different proportions and asked Lin Wanbai to test the performance of the materials.

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

Li Yu doesn't think so, people will always grow up, right? It would be nice to overcome the difficulties now.

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

As soon as the words fell, Xiao Wei's voice sounded: "Okay, Miss Wanbai." Then, the material analysis cabinet was put into operation, and at the same time, all kinds of information about the sample were projected in front of Lin Wanbai by Xiao Wei, forming a light screen, and the information on the light screen was constantly refreshed.

More science fiction than the holographic projection in science fiction movies, Lin Wanbai performs various operations on the projection, and the force field feedback technology allows her to perform various operations on the holographic projection, magnifying, combining, and simulating, Li Yu even plans to experiment with atomic-level simulation in the holographic projection.

"On the outside, it's fine, but in terms of atomic structure, if the temperature is higher than 50 degrees, it will cause scattering interference to energy conduction, and 15% of the energy will be lost. It seems to be unqualified. Xiao Wei sent the results to Li Yu to see if he could improve the problem of energy scattering loss at high temperature in sample No. 3. ”

"Okay, Miss Lin! The results have been sent! ”

Next, Lin Wanbai began to analyze sample No. 4. At the end of the day, the five samples that Fang Qianmo experimented with had various problems, and the experimental results were not ideal.

In the evening, Li Yu and Fang Qianmo discussed, and after summarizing the situation, Li Yu frowned and said: "That is to say, according to the existing materials, if you want to meet the requirements, you must make the signal transmitter larger?" ”

Lin Wanbai was also a little unhappy: "Yes, if the device is large-scale, it will definitely not be able to be put down in the laboratory." Either the equipment in the laboratory is upgraded, and the existing equipment manufacturing can not meet the requirements of the one-piece base, so it can only be divided into four pieces and then stitched, but the energy loss of stitching is too great. ”

"Well, it's this problem, you still have a question that you haven't noticed, the escape of energy will form an abnormal burst of electromagnetic energy, which will affect all the surrounding electronic equipment, and even devastating losses, I will find another way."

The problem that space signal transmitters are facing now is the problem of materials. In order to reduce energy loss, Li Yu raised the critical temperature of superconducting materials at room temperature to 80 degrees Celsius.

In the past, for Li Yu, the problem of increasing the critical force temperature of superconducting materials is no longer a problem. The progress of material synthesis theory has allowed Li Yu to find a more suitable way to synthesize superconducting materials. If he wanted to, it would not be a problem to raise the critical temperature of superconductivity to 100 degrees Celsius, and it could be higher.

Existing superconducting materials are already usable, not worth the time spent improving, and can be synthesized at any time if needed.

The launcher should be optimized, which can be considered in terms of materials and energy. Improving the purity of materials can reduce energy loss, and improving the purity of materials requires upgrading of production equipment. Upgrading equipment is not a separate upgrade, almost all related equipment in the laboratory has to be upgraded, and this time takes at least one year. Not to mention that the equipment of the new laboratory is Li Yu just a year old, what if the aliens stop contacting? This risk cannot be taken.

It can also increase the energy intensity, and the fusion device Li Yu can be further miniaturized, and the volume can be reduced by two-thirds. Signal transmitters can accommodate more miniaturized fusion devices and provide more energy, but unfortunately it has been calculated that there is an upper limit to the energy intensity of existing materials, and only a maximum of fifteen fusion devices can be installed.

Li Yu and Lin Wanbai glanced at each other: "It seems that we can only go to a place other than the laboratory to install a signal transmitter." ”

Due to the fact that the existing materials cannot reach the required purity, the signal transmitter will produce energy dissipation when the signal is transmitted, and the energy dissipation will cause abnormal electromagnetic wave disorder within 30 to 100 kilometers around the signal transmitter, which will interfere with the normal electromagnetic communication signal.

The existence of this problem made Li Yu not many experimental sites to choose from, Lin Wanbai proposed to put the experimental site at sea, but Li Yu vetoed her opinion. Although now Li Yu has solved all the problems of building flying machines, he has no place to make them.

The small flying machine that was built for Lin Wan's operation in the provincial capital was only five meters long and two meters wide, with a small volume and a load of only one ton, and it could also find a way to solve the production and storage site. However, the equipment required for this experiment is not only large in size, but also heavy, and if it is also transported by aircraft, the aircraft required will be five times larger than the aircraft on the mission.

Looking for a transport company or chartering a boat? Li Yu and Lin Wanbai looked at each other, the secrecy work would not be easy to solve, and if the matter was revealed, they would be at peace forever, and the conditions for going to the sea for experiments were not available.

For safety reasons, it cannot be considered near Ze'an County, nor at sea. Lin Wanbai proposed another solution: "Li Yu, if you build a signal emitter with a small power, as long as it can cover the whole world, the material requirements will be much reduced." ”

Li Yu reacted as soon as he heard Lin Wanbai's words, "You mean that we can divide the signal transmitter into two parts, put the transmitting part in other places, and put the receiving part in the laboratory." These two parts are relayed through small signal transmitting and receiving devices? ”

Lin Wanbai followed Li Yu's words, "The low-power signal transmitter will not cause energy to escape, and the signal can cover the whole world, so that even if there is an accident during the experiment, our laboratory will not be exposed." In this way, we have more choices about where to experiment. ”

Li Yu felt that this method was good, before he only thought about solving the problem of energy escape, Lin Wanbai's method solved the problem from another aspect.