Fight,Primitive Man

Just now, Yang and an had a hard fight. It seems that Yang defeated an and occupied the advantage, but Chu Dong, who has the ability of Tian Heng, has already seen the clue.

In fact, Shangyang has already lost. His fist strength is incomparable. After being continued by an, his momentum is reduced.

Just not for a long time, while the first move is resolved, Ann is already containing a sharp counterattack.

It's far from being able to tell the difference between the two powers in one move or two moves. It's a chance.

Yang failed to attack and lost the chance.

The reason is still eye disease.

Yang can't see the other side's change clearly, so he can only attack all the way. He will always be caught by the opponent to fight back. At that time, Yang, who can't see clearly, can only be beaten passively.

This, Chu Dong see some, Yang is very clear, so after a punch, no longer attack, although he is still resentful.

Chudong and yang are indifferent to the crystal stones sent by the Yunshan tribe, but others are very happy. Especially some old people say that how large and powerful the Yunshan tribe is, how happy and proud it is to send gifts to their Panshi tribe.

Now there are natural crystal stones as raw materials, and the rest depends on Chudong's grinding technology.

Chu Dong himself doesn't know how to make glasses, but as an excellent surgeon, he is very proficient in the principle of making glasses, so a lot of raw materials, he can try again and again.

Chu Dong was an activist. He said he would do it as soon as he could, and soon began to cut the crystal stones.

He picked out not particularly pure crystal clusters from them, and then cut them with a sharp bone knife. He soon found that the cutting speed of the bone knife was very slow, and the wear of the bone knife was very severe.

Just when Chu Dong is at a loss to find the right cutting tool, Yang finds it.

After all, Chu Dong is matching Yang's eyes. Yang also hopes Chu Dong's method will work.

It is said that there is something wrong with Chu Dong's cutting hard crystal. Yang takes the bone knife from Chu Dong's hand and cuts it according to Chu Dong's instructions.

The same bone knife, in Chu Dong's hand cutting is very blunt and slow, but in Yang's hand, it is very easy to cut the crystal stone.

Chu Dong saw clearly that the bone knife didn't become sharper, but it was the operator.

When Yang's hand was holding the bone knife, he was full of Qi.

On the surface of the blade, there is a bone knife with strong Qi flowing. Cutting into the hard crystal is like cutting into a piece of cooked fierce beast barbecue.

Chu Dong knew that Manqi could be used in this way.

With Yang as a cutting assistant, the rest of the work is not so difficult. The main thing is to rely on the efforts of water grinding to grind the block crystal into the thickness of the lens.

In view of Yang's myopia is too high, I'm afraid that the thickness of Yang's crystal lens is amazing.

Chu Dong next period of time, and the crystal stone on the strength.

The glasses made for Yang are purely hand-made, which is a great challenge for Chudong, a layman.

After cutting the crystal stone to about the thickness of the palm, Chu Dong began to try rough grinding.

Without any modern machinery and equipment, Chu Dong had to use local materials.

At the beginning, hard stones were used as abrasive tools for rough grinding. Later, it was found that there would be many scratches on the crystal stone, so we chose another abrasive tool.

This time, the abrasives are hard brute bones.

After the meat of wild animals was eaten up by the tribe, the bones of ordinary wild animals, which were not wild bones, were often used as raw materials such as bone knives and bone bowls in the hands of primitive people, and those that were too hard were discarded at will.

Now, it is used by Chu Dong.

Chu Dong used hard animal bones as abrasives to polish the surface of the crystal as smooth as possible, and also to achieve a certain degree of concavity and convexity.

After rough grinding, the crystal will be finely ground, which is actually a polishing process.

All spectacle lenses should have a certain degree of concavity and convexity. The difference of concavity and convexity represents the difference of myopia. At this time, the required grinding material can not be hard animal bone.

When looking for fine grinding tools, Chu Dong took great pains to try dozens of things that could be used, such as coarse gravel, or calloused hands of barbarian soldiers. Yang used Manqi to try polishing and fine grinding, but the effect was not good.

By chance, Chu Dong saw the stomach wall left behind by a fierce beast after being slaughtered.

The fierce beast is not carnivorous, but herbivorous.

The stomach walls of herbivorous animals are rough and wear-resistant, especially for herbivorous beasts, because these guys often swallow stones when they eat grass.

After seeing the tenacity of the stomach wall of this fierce beast, Chu Dong knew that he had found the sandpaper for fine grinding.

The stomach wall of the cooked beast is still very tough, and the particles on the stomach wall will not fall off even after being cooked. That is the result of the mucus secreted by the stomach wall all the year round sticking to the coarse sand particles. After flattening the stomach wall, it is a piece of natural sandpaper.With sandpaper, the work of fine grinding is only time-consuming.

One of the most outstanding surgeons in capillary minimally invasive surgery is patient and careful.

It took Chu Dong a whole day and a half to polish a piece of transparent lens with sandpaper on the stomach wall of the beast, and the diopter was also very good.

After Chu Dong finished, he felt as if he had finished a work of art, and his sense of pride suddenly rose.

Soon, Yang was called over.

When Yang put the polished crystal lens in front of his eyes according to Chu Dong's instructions, he was shocked.

His eyes were clear.

"How's it going?"

Although from the state of Yang blockhouse, Chu Dong can guess that the crystal lens should be effective, but there is still a little nervous question.

"How on earth did you do it? It's a miracle."

Yang takes a deep breath. For him, he has been living in a vague vision for nearly 20 years. Suddenly, the world becomes clear. Isn't it a miracle?

"It's nothing. It's just using some refractive principles of the eyeball, which you don't need to understand or understand. You just need to know that the lens I made is the killer of things you can't see clearly."

Yang takes the lens and looks at Chu Dong carefully.

Chu Dong didn't look like a primitive man. His appearance and figure were all in favor of pocket, but his brain was incomparable.

"I didn't believe that you were the wizard of our rock tribe, but today, I understand that steel bone has great vision. He has found a wizard who can create miracles."

"Chu Wu, from today on, you have won the friendship of the God level warrior Yang."