Chapter 503 Goodbye, rain forest.
The wild boar had been sniffing under their feet for a long time and was about to hit them. Bifang finally reacted and dragged the stone away from the spot.
After the obstacles were gone, the wild boar immediately buried its head in the soil, and with its long nose digging a few times, a nut covered in mud emerged from the soil.
Then a cave appeared, and a big black rat suddenly jumped out of the cave, but before it could run out of the cave, it was bitten by a wild boar and ate it along with its bones.
The audience was shocked. Bifang had lived here for more than ten days, but he didn't even notice there was a rat hole nearby?
"I almost forgot that wild boars have a more sensitive sense of smell than dogs. Many truffle hunters rely on the pigs' sense of smell to find truffles." Bifang laughed.
He had lived here for more than ten days, but he had never noticed that there was a rat hole under the stone where he often sat.
The water monitor lizard didn't react either. Maybe it eats a lot of meat and fish every day so it doesn't like mice anymore?
[How can a pig be so strong and yet not be used for military purposes? ]
[Who said there is no such thing? It already existed, in the kitchen]
[Cooking class, do you want to kill me and inherit my property? ]
【Eating and drinking enough will give you strength, and pigs make a great contribution.】
"Because pigs are smarter than dogs, they are more likely to have complex emotions , such as fear and retreat, and their obedience is much worse. In addition, pigs have poor eyesight and poor agility, so they cannot replace dogs."
When the other three wild boars saw that their companions had made a harvest, they all huddled together, stuck out their buttocks with curled tails, turned over the entire layer of soil, and ate all the hairless mice inside .
Bifang looked up and said with regret that the time was almost up.
"Before I came here, a staff member told me that there are many wild monkeys and wild boars in the valley rain forest. However, I have been to so many places and have seen white-lipped gaur and wild boars, but I have not been lucky enough to encounter wild monkeys. I think it is because of my appearance."
These words amused the audience and made them laugh.
The last moments slowly fell towards the end in the casual chat. The wild boar had left, the drone slowly took off, and the wind blew through the thousands of hectares of forest, which looked like a sea from a distance.
The crimson sea.
The treetops form waves, layer upon layer.
Countless returning birds turned into black dots and flew away into the distance or into the jungle, but only one black dot grew bigger and bigger, bringing with it a roaring sound.
Everything is like returning to the starting point of the story.
"Why do humans need iron?"
Bifang suddenly asked.
Of course it’s because iron is easy to use, the audience answered without hesitation.
"Yes, iron is useful."
Bifang raised the polished dagger in his hand. The original pitch-black appearance had long disappeared, and the whole thing was silver-white, shining with a dazzling bright orange light under the setting sun.
Hard, sharp and tough, who can say it is not useful?
"Bronze is an alloy of copper and tin. It is also the first widely used metal, and its history can be traced back to prehistoric times. Iron, which requires high-temperature smelting, developed later, but iron is harder, more wear-resistant and more readily available, so it quickly replaced bronze."
"From architecture, transportation, tools, weapons, it is everywhere. If you want to understand a metal and its importance to civilization, it must be iron."
"Wrought iron is too soft, even softer than bronze, and has limited uses. In combat, you definitely don't want your sword to be too soft. That's when humans need steel."
"For centuries, blacksmiths have sought various ways to strengthen wrought iron. They had no chemical science to guide them, only trial and error.
Eventually they discovered that, oh, heating the wrought iron over charcoal would harden the surface of the wrought iron, making it perfect as a cutting surface.
So they speculated that some substance must have entered the wrought iron to strengthen it, which is the carburizing process.
Gradually, they also discovered a process called "quenching", which is to immerse the heated iron in oil or water to cool it quickly, making it harder than iron that is cooled slowly.
But although it is hard, it is too brittle. If the two touch, it will easily break.
After much trial and error, they discovered that this shortcoming could be improved through another technique called "tempering," which is to reheat the iron to a lower temperature and let it cool slowly, so that the iron can be "relaxed" and some of its hardness can be reduced to toughness.
The dagger, polished with rough stone, was covered with scratches, and Bifang's cheek was vaguely reflected.
The roar in the sky was getting closer and closer, and Bifang's speech speed was getting faster and faster, and the audience felt reluctant to leave.
The time has come to say goodbye.
“Although the ancients used experience to summarize technology without understanding the principles, and each improvement was brought about by thousands of accidents or trial and error, we have received a good education and understand many basic principles, but we cannot easily restore these technologies.”
"Today, steelmaking has become a complete industry with close connections."
“Iron ore and coal are mined around the world and transported to large steel mills, where the ore is ground into pellets and the coal is distilled into coke – which is then stacked in layers into blast furnaces hundreds of metres high.”
"The processed coke can even burn at a temperature of over 1,500°. The iron ore is directly melted into molten iron, which is then poured into a converter and blown into pure oxygen to oxidize the impurities. Different elements are added as needed to produce molten steel with precise composition."
"Finally, it is poured into a mold, cooled, and pressed into various shapes at a temperature of 1,100 degrees Celsius. It is then distributed to every field of modern industry, and ultimately supports the entire modern civilization."
"How to develop the most precise formula and manufacture the best steel is the most hardcore competition in modern civilization. Compared with this, the small piece of steel I made in the wilderness is nothing."
Bifang laughed at himself.
The audience suddenly became anxious.
[How could this be possible? This is absolutely awesome! ]
[That’s right, even if I know the whole process, I can only look up to you]
[I don’t care, I don’t care, Fang Shen is the best in the world! ]
Bifang sneered: "I know you like me very much, but if you are really interested in ironmaking, then study hard. In the future, if you can develop more useful materials and contribute to the construction of the motherland, you will surpass me."
The helicopter spotted Bifang in the dense forest and quickly lowered the rope ladder.
Bifang grabbed it and climbed up quickly. When he was halfway up, he made a gesture to the driver and the helicopter slowly rose.
"The danger density in the rainforest is very high. During the 21 days of survival, we saw many beautiful and dangerous creatures that we had never seen before, from white-lipped buffaloes to Burmese pythons, from water monitors to cobras. Before coming here, I never thought I would encounter so many first- and second-level creatures."
The audience nodded as they thought of the cobra, giant squirrel, bison, python, and the companion water monitor.
"I also built a shelter with Leonardo and made various tools. The most important thing is that I opened a furnace to smelt iron and obtained a steel dagger!"
Bifang held high the only harvest he brought out of the rain forest.
If you didn't see it with your own eyes, no one would believe that this knife was forged bit by bit in the rainforest.
She came in a grass skirt and left in the same grass skirt and a steel knife.
"Now, I am leaving. I sincerely hope that the skills and stories I have shown you can bring you gains and happiness."
"Then today's live broadcast ends here. See you next time!"
[Wow, my Fang Shen]
【Don’t wow】
[Wow, when is the next live broadcast?]
[I have a feeling that the next live broadcast will be next time]
The rope swayed slightly, and Bifang hung in the air, its back facing the setting sun, its body covered with gold. It extended its hand in a two-finger salute to the drone in front of it, and finally slowly rose into the air and disappeared.
The screen went completely black.
In the first venue, everyone let out a sigh of relief as they faced the dimmed big screen, feeling a little unsatisfied.
During these twenty days, the shock brought by Bifang 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 bow down in admiration.
Fang Shen’s live broadcast room is truly worthy of its name.
If you don't know where the greatest adventurer of this century is, just turn on the live broadcast and he will appear.
The helicopter slowly rose into the damp night sky. After an unknown amount of time, the sky became completely dark.
The city was like a gradually enlarging luminous body, and then the lights of thousands of homes throughout Banna gradually became clearer in sight through the wet windows.
Further away, large tracts of rainforest were particularly dark, slowly turning into a small clump of rainforest, and finally into a tree.
The flowing air flow whizzed past the porthole, and all that was left in the field of vision was a dark sky and a layered gray and white cloud pattern.
"Goodbye, rain forest."
