There were almost no insects outside the city walls, and they were launching suicide attacks on the walls. This attack seemed useless, but in fact it was still a huge distraction for Jiang Feng and his team.
Because the city wall is quite long and the air battleship cannot cover all places, automatic weapons are destroyed by insects from time to time. Basically, technicians are needed every time to remove the damaged mobile weapons and replace them with new ones.
However, there are pros and cons, and the same is true for the Zerg. Their tactics did have some effect, but the corpses of the Zerg killed outside the city walls became nutrients for the blood forest and giant trees. The suicidal attacks of the Zerg resulted in the rapid growth of the blood forest and giant trees.
In just over ten days, the giant tree that had just sprouted had grown to nearly a hundred meters in height, and its metal branches were extremely hard for insects.
The blood forest planted under the giant tree also grew rapidly, and the blood-colored vines with barbs continued to absorb nutrients from the insect corpses.
In addition, Zhongli would come to the edge of the city wall every day to collect crystal cores. These were valuable supplies that came in endless supply!
Recently, researchers are studying how to effectively utilize crystal cores. Inspired by gems, Jiang Feng once tried to carve runes on the surface of crystal cores, but the experimental results were not ideal.
Ordinary crystal cores can unleash the power of many runes, and will break like gems after use. If a crystal core with special powers is engraved with corresponding runes, the effect that can be unleashed is indeed very impressive, but it is a waste to use such a crystal as a bomb!
However, when a large number of insects provided them with crystal cores, the crystal cores became abundant, so the researchers had crystal cores for their research.
The crystal hardness is higher than that of gemstones, but it is weaker than that of the secret gold carving knife. It is not difficult to carve runes. However, due to various accidents, even if Jiang Feng uses his own modified laboratory, he still needs to be cautious when entering the school.
This time, the researchers mainly studied the effects of the combination of crystal cores and gems. After grinding different crystal cores and gems into an extremely fine powder, they began to mix them according to a predetermined ratio, and then used runes to trigger the reaction of these powders.
Because the various elements are mixed, the mixed powders can be extremely unstable when reacting, often manifesting as violent explosions. These explosions are uncontrollable and unsafe due to their instability, but they are quite powerful. Therefore, researchers are looking to improve the properties of the powders by controlling their ratios, hoping to make them more stable and controllable.
If successful, it would be a new type of bomb or a substitute for gunpowder. However, after a lot of attempts, researchers found that the reason why this thing is easy to explode and the explosion effect cannot be controlled at all is that the powder texture is loose and cannot be made compact. The internal air and discontinuous structure either explode incompletely or explode automatically due to violent vibrations.
After listening to the questions raised by the researchers, Jiang Feng pondered in his heart. This question seems complicated, but in fact it means that there is no way to restore these things after they are broken into pieces?
"Zhou Qing!"
"Brother Jiang?"
"I want you to go and pick up Ji Yun."
"Okay, I'll leave right away."
After Jiang Feng ended the call, he did not continue to ask about the researchers' progress. They had already determined the proportions of various powders. When ordinary crystal core powder, flame crystal core powder, ruby powder, cyan gem powder and gold gem powder were combined in precise proportions, the explosive power would be beyond imagination!
In the laboratory, researchers calculated the mass of these powders in grams. However, even in the uncompressed state, the temperature of the powder after the reaction can still reach as high as five or six thousand degrees, and a large amount of flames can be generated.
Jiang Feng nodded in satisfaction after hearing this. After all, heavy artillery is still the power of gems. It is difficult to make and the explosive power is just so-so. It is good for dealing with sea beasts, but it is still a little insufficient for dealing with massive swarms of insects.
Three days later, Ji Yun returned. She seemed very happy after staying in Russia for a long time. After walking around the entire castle again, she came to Jiang Feng and asked what was the matter.
"I need you to use your abilities to help."
"Yeah, no problem!"
Jiang Feng took her to the laboratory, where there was a metal mold filled with powder mixture, waiting for the final compression molding.
“Crystallize this into a school”
"Well, I'll try."
Ji Yun walked forward and placed his hand on the powder. Then a hazy light began to act on the powder, and then the powder quickly condensed into a crystal at a speed visible to the naked eye.
"alright!"
"Well, let me take a look."
Jiang Feng walked over and took the crystal out of the mold. It was a hexagonal prism crystal that was 30 centimeters long and 6 centimeters wide. Holding it in his hand, it looked like a perfect red crystal, extremely dazzling!
"it's beautiful!"
“That’s it!”
Ji Yun seemed very proud to hear Jiang Feng's praise. Having the ability to crystallize was something she was extremely proud of!
"Hey, come on, I'll take you to see the effect!"
Jiang Feng picked up the crystal column in his hand and walked outside without explaining. Ji Yun looked at the crystal in his hand and was a little confused about what Jiang Feng was going to do, but still followed him.
When they arrived at the technicians' factory, Jiang Feng asked them to move out the outer shell of a shell, then fill it with crystal columns, and then use metal manipulation to completely seal the shell.
Then he moved the one-meter-long and thirty-centimeter-diameter shell onto an air battleship. He was going to test the power of the shell.
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