Live Wilderness Adventure

The wild boar kept sniffing under his feet, sniffing for a long time, and nearly collided. Bi Fang finally reacted and dragged the stone away from the spot.

When the blocker left, the wild boar immediately buried its head in the soil, arched its long nose a few times, and offered a nut covered with soil from the soil.

Then a cave was exposed, and a **** rat suddenly jumped out of the cave, but it didn't run out of the cave. It was bitten by a wild boar and ate the bones together.

The audience was shocked. Bi Fang lived here for more than ten days, yet he didn't find a mouse hole nearby?

"I almost forgot, wild boars have a more sensitive sense of smell than dogs. Many truffle hunters rely on the smell of pigs to find them." Bi Fang was delighted.

He lived here for more than ten days, and he really never noticed that there was a mouse hole under the rock where he often sat.

The water monitor lizard didn't respond either. It's a big fish every day, and you can't look down on mice?

[Pig is so strong and so useless for military purposes? 】

【Who said no? I have it long ago, in the cooking class]

[Cooking class, are you trying to euthanize me to inherit my property? 】

[You have to eat and drink enough to have strength, and pigs have made great contributions. 】

"Because pigs are smarter than dogs, they are more prone to complex emotions, such as fear, withdrawal, and obedience is much worse. Moreover, pigs have poor eyesight and flexibility, so they cannot replace dogs. ."

When the other three wild boars saw that their companions had harvested, they all arched together, pouted their tails with curled tails, turned over the entire soil layer, and ate all the mice that had no hair inside.

Bi Fang raised his head, it was almost time, he said with regret.

"Before I came here, a staff member told me that there are many wild monkeys and wild boars in the rainforest of the valley, but I have traveled so many places, I have seen white-limbed bison, and there are wild boars, but I have no luck to encounter wild monkeys, it is estimated that I have a problem with my looks."

This remark made the audience amused and laughed.

The last time is slowly falling to the end in the chat, the wild boar has left, the drone is slowly lifted into the sky, the wind blows the forest with thousands of hectares, and it looks like a sea from a distance.

The pale red sea.

The treetops form waves, layer upon layer,

Countless birds turned into black spots and flew into the distance or between the jungles, only one black spot became bigger and bigger, bringing a roar.

Everything is like going back to the beginning of the story.

"You say, why do humans need iron?"

Bi Fang suddenly asked.

Of course, because iron is easy to use, the audience's answer comes without hesitation.

"Yes, iron is easy to use."

Bi Fang raised the smooth-polished dagger in his hand. The original black lacquer appearance had long since disappeared. The whole body was silver and white, with a dazzling bright orange light in the setting sun.

Hard, sharp, and full of toughness, who can say that it is not easy to use?

"Bronze is an alloy of copper and tin, and it is also the first widely used metal. Its history can even be traced back to prehistoric times. Iron, which requires high-temperature smelting, developed relatively late, but iron is harder, wear-resistant, and easier to obtain. , so it quickly took the place of bronze."

"From buildings, transportation, tools, weapons, it has its presence everywhere. If you want to understand a certain metal and its importance to civilization, it must be iron."

"Mallet iron is too soft, even softer than bronze, and its use is limited. In battle, you definitely don't want your sword to be too soft. At this time, human beings need steel."

"For centuries, blacksmiths have sought various ways to strengthen wrought iron. They have no chemical science to guide them, but through trial and error over and over.

Eventually they discovered, oh, it turns out that heating wrought iron over charcoal hardens the surface of the wrought iron, making it perfect for cutting.

So I speculated that it should be some substance that entered the wrought iron and made it strengthened. This is the carburizing method.

Gradually, they also discovered a process called 'quenching', as long as the heated iron is immersed in oil or water and cooled quickly, it is harder than the slowly cooled iron.

But it's really hard, it's too brittle, and if the two touch it, it will easily break.

After groping and groping, they found that this shortcoming could be improved by another technique called 'tempering', which is reheating the iron to a lower temperature, allowing it to cool slowly and 'relaxing' the iron, The lower part of the hardness is toughness. "

The rough stone-polished dagger was full of scratches, vaguely reflecting Bi Fang's cheeks.

The roar of the sky was getting closer and closer, and Bi Fang's speech speed was getting faster and faster, and the audience felt reluctant.

It's time to leave.

"Although the ancients summed up the technology with experience without understanding the principle, and every improvement can only be brought about by accident or trial and error, but we have received a good education and understand many basic principles, but we cannot easily to restore these technologies.”

"To this day, iron and steel smelting has become a complete set of closely linked industries."

"Iron ore and coal mined around the world are transported to large steel mills, the ground iron ore is sintered into pellets, and the coal is retorted into coke - which is then layered into blast furnaces up to 100 meters high."

"The treated coke can even be fired at a high temperature of over 1500°, and the iron ore is directly converted into molten iron, which is then poured into the converter, where pure oxygen is blown in to allow the impurities to oxidize and escape, and different elements are added as needed to produce molten steel with precise composition. ."

"Finally, it is injected into the mold for cooling, pressed into various shapes at a temperature of 1100°C, and distributed to every field of modern industry, ultimately supporting the entire modern civilization."

"How to develop the most precise formula and manufacture the steel with the best performance is the hardest challenge of modern civilization. Compared to that, I practiced a small piece of steel in the wilderness, which is not worth mentioning. "

Bi Fang laughed to himself.

The audience was in a hurry.

[How come, absolutely awesome! 】

[That is, knowing the whole process, I can only look up]

[I don't care, I don't care, Fang Shen is number one in the world! 】

Bi Fangjuana: "I know that you like me very much, but if you are really interested in ironmaking, then study hard, and develop more useful materials in the future to contribute to the construction of the motherland, then it has surpassed me. "

The helicopter found Bi Fang in the dense forest and quickly lowered the rope ladder.

Bi Fang grabbed it easily and quickly climbed. When he was halfway up, he made a gesture towards the driver, and the helicopter slowly pulled up.

"The density of danger in the rainforest is very high, and in twenty-one days of survival, we have seen many magnificent and dangerous creatures that have never been seen before, from bison to Burmese python, from water monitor lizard to cobra, Before I came in, I never imagined that I could meet so many countries one and two."

The audience couldn't help nodding thinking of cobras, giant squirrels, bison, giant pythons, and their companion water monitor lizards.

"I went to build a shelter with Leonardo and made all kinds of tools. The most important thing is that I opened a furnace to make iron and got a steel dagger!"

Bi Fang held high the only harvest that he brought out of the rainforest.

If you hadn't witnessed it with your own eyes, no one would believe that this knife was forged bit by bit in the rainforest.

He came with a grass skirt, and left with a grass skirt and a steel knife.

"Now, I'm leaving, and I sincerely hope that the skills and stories I show will bring you harvest and happiness."

"Then this is the end of today's live broadcast, see you next time!"

[Wow, my Fang Shen]

【Don't wow】

[Woooooo, when is the next live broadcast?]

[I have a hunch, the next time UU Reading www.uukanshu.com will broadcast live, it will be next time]

The rope fluttered slightly, and Bi Fang hung in the air with his back to the setting sun, covered in gold rims, and reached out to the drone in front of him with a two-finger salute, and finally lifted off slowly and disappeared.

The screen is completely black.

In the first arena, everyone exhaled a sigh of relief in the face of the dimmed big screen, somewhat unfulfilled.

In the past 20 days, Bi Fang's shock was no less than any previous live broadcast. Although it was not a life-and-death crisis, a steel dagger was enough to make people fall to the ground.

Fangshen's live broadcast room is worthy of its name.

If you don't know where the greatest adventurer of this century is, then turn on the live broadcast, he will definitely appear.

The helicopter slowly ascended into the wet night sky. After an unknown amount of time, the sky was completely dark.

The city is like a luminous body that gradually enlarges, and then the lights of thousands of houses in Banna are gradually clear in sight through the wet window.

Farther away, a large tract of rainforest was particularly dark, slowly turning into a small rainforest, and finally turning into a tree.

The flowing air hula la drifted past the porthole, and in the horizon there was only a dark dome and a gray and white cloud map with distinct layers.

"Goodbye, Rainforest."

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