I ask you to build tractors, but you build rockets?

The safe house at Test Base No. 2 is located a full 3.5 kilometers away. Construction workers built a road to connect it. Yang Zhongkai could see the snow piled up on both sides while sitting in the car.

“We have forklifts coming every day to clear the snow to ensure commuting, but soon we won’t need to do that.

Did you know that the comprehensive conversion efficiency of the first test satellite we launched, Chiwu-1, was only 84%, and one-sixth of the energy was lost. Even after we tested many times, we failed to break through 86%. "

Perhaps because he had been in an uninhabited place for too long, Ding Bijun seemed quite talkative at this time:

"Later we confirmed that the reason was that the receiving antenna was too small and the microwave beam emitted by the satellite was not concentrated enough. The first problem was solved easily. We built a larger and more reasonable No. 2 test base, and the maximum receiving power capacity was doubled. Dozens of times!

As for the second one, we originally wanted to wait until later to solve it, but Xinyuan Company solved this trouble for us. They directly took over the manufacturing of the launcher, and the performance improved more than ten times. "

At this point, Ding Bijun lowered his voice and pretended to be mysterious:

“I feel that they have already had this type of product, and based on the accuracy, it should be used for lasers with stronger directivity, and it should be ultra-long-distance laser communication technology. We directly enjoy the ready-made technology.

If this test is completely successful, the future application prospects will be unimaginable! "

Yang Zhongkai: "For example?"

Ding Bijun: "Do you know how the microwave oven was invented? There was a radar operator who noticed that the candy in his pocket melted, which made people realize that microwaves can be used to heat objects evenly.

But the scattering of electromagnetic waves is too strong, so we have to limit it to an iron box and concentrate it. But now the power transmitted by Chiwu-3 is as high as 2.3 megawatts. Although the limit range of concentration is much larger than that of a microwave oven, this power ... is enough to have a significant impact on the human body.

Of course, it is not just as simple as heating. Microwaves are also electromagnetic waves. Such a strong electromagnetic environment will cause unpredictable disorders in the organs and nerves of the entire body. This is the truly invisible and destructive weapon that kills people.

You said you didn't want to study that... Star Wars? Microwaves attenuate less in space, and you can use them to burn enemy ships just as effectively. "

"..."

Yang Zhongkai couldn't imagine what physical disorder caused by electromagnetic waves would look like, but based on his own common sense, it would be terrifying enough to think about the consequences of putting a person in a microwave oven.

"So you are actually researching weapons? To be precise, solar satellites can also kill people?"

"No, no, no, of course we still use it for peaceful purposes, and recently we have discovered some potential for other aspects."

Ding Bijun certainly has no interest in roasting humans alive, which sounds scarier than a nuclear explosion. The latter can at least give you a good time most of the time.

"The current Chiwu-3 solar cell part only accounts for 13 tons of mass, and the remaining 6 tons are given to the heat dissipation, microwave transmitter and control unit. Although the larger the size, the greater the mass proportion of the non-energy supply part. Small, but still impossible to ignore, so we started working on another, more advanced flexible solar panel."

"Flexible?"

"Yes, our solar panels are now made up of hard panels. The main part of the first 160-megawatt power station put into practical use is an oversized rectangle composed of solar cells, and the rest is mainly the transmitting antenna.

But let’s change our thinking. We don’t need microwave emitters. We make the solar cell array into a circle, and it can be bent and deformed to a certain extent. Its back is covered with another material. After curling, the front side is the power generation part and the back side is the emission part. The device is simple and lightweight, and can easily control the focus range. Because of the large area, heat dissipation is also easier to solve.

And think about it, what does it look like at this time? "

"Like...a mirror."

"Yes, an opaque mirror that reflects light can not only focus microwaves, but also light. Although it is not as good as a real mirror, the light reflected in such a large area is quite considerable.

Do you still remember the artificial moon that Rongcheng envisioned before? This mirror will do much the same thing. "

Yang Zhongkai imagined a blue-black and a silver curlable mirror in the synchronous orbit, which could bring both electricity and light.

He also remembered the focusing effect that Ding Bijun had just mentioned. The intensity of the light focused by such a large mirror could directly ignite the ground. Only the name "God's Rod" could match it.

His thinking has become divergent, and he has even begun to imagine more uses:

"Now we are converting the focused microwaves into electricity here. Can we not focus them, or expand the focusing radius to cover the entire city? In this way, people no longer even need to use batteries. Mobile phones can be charged at any time, and electric cars do not need to Worried about battery life..."

"Teacher Yang, according to your idea, we must first consider the interference problem. The high-intensity electromagnetic environment covering such a wide area may cause even greater chaos."

"Well……"

Yang Zhongkai was a little embarrassed, but Ding Bijun didn't mean to laugh:

"However, this cannot be achieved with current technology, and it may become a reality one day in the future. In fact, even the kind of 'mirror' I mentioned will have to be developed to at least the fourth, fifth or even more generations. This is only possible with solar cells, which are now prohibitively expensive to manufacture.

But we should all believe that we can definitely wait until the ideal day in this life. "

During the conversation, the car had already arrived at the safe house, which actually looked similar to a normal temporary house, except that the walls and roof were covered with a shiny material that looked a lot like aluminum foil.

Blocking microwaves is not difficult. It can be solved by covering it with a layer of reflective material. In addition to the outer layer of the safe house, the inside of the board is also filled with similar materials. This can basically ensure that the people in the house are not affected. The only problem is that the signal is almost blocked. transfer.

After Yang Zhongkai arrived here, he had no chance to interrupt. He just watched other people busy coming and going. It was not until the evening that he heard the word "Here we come."

He already knew that focusing and positioning microwaves required a process. The 10 kilometers around the No. 2 Test Base were all warning zones, and there was a possibility of concentrating a large amount of microwaves.

When the transmission started, he didn't notice any abnormality at all. After almost a minute, he saw the snowy road outside the window began to melt, and it immediately spread at an alarming speed, turning the white snow into gurgling water, and then quickly evaporated to reveal the underneath. Soil.

At the same time, the same thing was happening in the forest outside. The snow attached to the branches and needles melted faster. The vast snow forest quickly changed from white to dark green and brown, as if fading. If you ignore the accumulation of snow, The ground with still thick snow looks more like a spring and autumn scene.

The vast forest is fragmented in time, and the seasons of the trees are incompatible with the ground, creating a strong sense of dissonance.

But Ding Bijun is more concerned about the fluctuation of the power received by the antenna array, which is growing rapidly with the focus of Chiwu-3 and has exceeded 1 megawatt.