Chapter 290 Bronze Giant Gate

There are about three ways to make a mirror. One is tin amalgam. A layer of tin foil is attached to the back of the glass, and then sprinkled with mercury. The mercury will melt the tin foil and apply a silver film to it, but this method has been eliminated.

In modern times, there are only two commonly used methods, aluminum mirror and silver mirror reaction. The former uses aluminum to evaporate and attach to the glass to form a mirror surface. Works great.

   But compared to the two, aluminum mirrors are cheaper.

Chu Dong tried both methods, but the effect of the aluminum mirror was not very good, because there was no suitable evaporation environment, the ideal environment should be a vacuum, and the effect of the mirror made was average, so Chu Dong could only use the silver mirror reacted.

Another three days have passed since this delay, but Chu Dong's mirrors were finally made, a total of 1,000 square mirrors of one square meter, and some man-made iron frames specially used to fix the mirrors, and then Chu Dong made them. Dong spent another day transporting all these things to the mountain walls on both sides of the Moragan Canyon. Zhinao marked the two best reflection points in total, and the sun was also abundant at noon.

Chu Dong instructed craftsmen to splicing the mirrors together with an iron frame to make ten concave mirrors with a height of seven meters. Each concave mirror cost a hundred mirrors. This angle was calculated by the brain, and it was just enough to shoot into the canyon. Center, and can do some fine-tuning according to the time.

   This movement was too big, and it attracted the Miao family members. When they saw a mirror that was fully visible, everyone's performance was different. Li Hongxian just thought that Chu Dong was very capable and had a good brain.

  Langu and Miao Wenjiu were more embarrassed and said that they wanted a piece, which would be much more convenient for dressing on weekdays, which was much better than the bronze mirror they used.

  Chu Dong said with a smile: "Don't worry, the two aunts, give this thing to the Miao family when you run out. Is 1000 yuan enough? It's not enough for me to do it again."

  Langu said a little embarrassedly: "This, this is not suitable, it is a bit too precious."

Zhang Han was not very interested in this kind of handicraft. At first he thought that Chu Dong was going to make a magic tool, and he thought he had learned the Fang family's soul refining technique, but the result was an ordinary mirror. Although it was indeed very precious, it was After all, it's the stuff of ordinary people.

As it approached noon, Chu Dong waved the flag opposite the valley, and Yang Yiqing waved the flag on the opposite side to indicate that he had seen it. The two of them were standing at the corner of their eyes, about two kilometers apart. Pulled off the black cloth covering the mirror.

The next moment, everyone was stunned. Zhang Han flew directly to the mirror and carefully observed. A total of ten spliced ​​concave mirrors shot ten strong rays of light into the canyon. Under the thunder cloud The black fog surged, as if a violent reaction was happening, and the silhouettes moved as if something was struggling, and it looked very painful.

   These ten rays of light are still not enough, but it is really weakening the concentration of the Kuroshio in the valley. The most important thing is that it is effortless, as long as there is the sun.

Chu Dong squatted on the edge of the cliff and observed it for ten minutes. According to this reduction rate, it would take about half a month. However, this did prove the conjecture of Zhinao. Sunlight has some special reactions with these black tides, but it is not dark energy. neutralization is unknown.

Seeing the mirror was not enough, Chu Dong could only go back and continue working. He taught Li Hongxian how to adjust the angle. As a result, Li Hongxian was stunned to lift the concave mirror composed of a hundred mirrors and an iron frame, and there was no need for Chu winter steering gear.

  Li Hongxian suddenly realized: "I seem to have played with this when I was a child. When I was a child, I often used a bronze mirror to look at people, and I was beaten by my father a lot. The light reflected by your mirror is so strong."

   "You can take it easy, this mirror will shatter when you touch it, but it's not as strong as a bronze mirror. If it shatters, my seven days of hard work will be in vain."

In order to make these mirrors strong, Chu Dong smeared a layer of clay on the back of the mirrors, and after baking at high temperature, it is easy to transport, and it is not easy to break. It will be very heavy. Estimated to be three or four hundred pounds, Li Hongxian's strength is still a bit outrageous.

The method was effective, so Chu Dong ordered the factory to continue to do it. He didn't tell anyone about the ratio and Yinjing's reaction. It was the core technology and it was impossible to fake someone else's hand. She goes to silver plating and breaks several pieces for you in a minute.

With the scale of the kiln burning, the mirror production speed is also much faster. Five hundred pieces can be produced in one day. Concave mirrors are set up on the cliffs on both sides of the canyon. Li Hongxian and Zhang Han are one on each side. Protection, in case someone will destroy it.

Chu Dong took an hour every day to collect data in the valley and record the changes. There were too many desires in the black mist. They could see their struggles outside, but the struggles had no effect. Bright light destroys them every day.

   Another three days, the gate of **** has been basked in the sun for three days, and has completely lost its former mystery. The black mist is almost gone. With the beam of the mirror, they can also see the scene in the valley.

There is actually a bronze door in the center of the canyon, eight meters high and three meters wide, but the door is embedded in the ground, and there are some things carved on the door that are too far away for Chu Dong to see, so a few people met today. Explore the gates of hell.

Zhang Lingwei and Yang Yiqing were left behind. They needed to adjust the angle of the mirror with the change of the sun, and try to let the sun shine around Chu Dong and them. The people who designed this place probably wouldn't have thought that someone could attract sunlight from the outside world. This deadly barrier to human beings was dealt with so easily.

This time, the few people re-entered the canyon and did not encounter any strange things. Although the valley was gloomy, there was no foreign object. They came all the way to the center of the canyon and came to the bronze door. Chu Dong squatted on the ground and picked up a thick layer of dust. Unbelievable how smooth the ground was. It's close to metal.

  Chu Dong touched the smooth ground and said in admiration, "This ground is unbelievable. Wasn't the technology of Yunshangguo too developed in that era?"

   A few people circled around, there was nothing else but this door, it was empty.

   just found a token on that door, and two porcelain vases.

Chu Dong was shocked when he saw the token, because he had a piece of it, which was left to him by Huang De, but the two tokens were the same side, so it was impossible to make a pair. A pair of positive and negative cards should have a greater effect when put together. Why is there only one side?

   (end of this chapter)