Chapter 492 Practice Is the Key to the Door of Truth (Seeking Monthly Ticket)

Chapter 492 Practice is the key to the door of truth (seeking monthly ticket)

Survival in the Banna Rainforest was late at night on the ninth day.

Inside the shelter, a slight snore sounded.

On the soil slope not far away, a huge black shadow slowly protruded out of the bushes and stared at the shelter. A few minutes later, there was a thin sound of turning the soil.

The snoring stopped.

Bi Fang opened his eyes, stared blankly at the roof of the shed, sat up and scratched his hair, picked up a stick of dry wood cut into fish scales, dipped it in some oil, lit it, and went outside the fence.

Under the light of the fire, the sound of digging suddenly stopped.

After staring blankly at each other for a few minutes, Bi Fang stumbled across the bamboo door and threw the torch into the bonfire.

continue to sleep.

Early morning on the tenth day.

The sun shines in from outside the door.

Bi Fang yawned, chewed lemongrass grass mixed with charcoal, bit a tree stick for a while to brush his teeth, and washed his face with clean water before he finished washing.

After dealing with personal hygiene, filling in charcoal ash and soil, Bi Fang turned on the live broadcast.

"Morning, brothers."

[Morning, Boss Fang! 】

[Why are there no sisters, woo woo woo]

[The air is shaking and cold, when will we women stand up]

[Has the water monitor lizard attacked at night? 】

[It seems that Lao Fang slept well? The monitor lizard is gone? 】

"It didn't leave." Bi Fang beckoned the drone to follow behind him, to the opposite position from the door.

It was originally a small slope full of shrubs, with a stream and a big river in front, and bushes on the slope at the back. The shelter can be regarded as surrounded by mountains and rivers.

But now, the small soil slope has become completely different. A dark cave has appeared at the bottom of the slope, and the soil has been dug out and piled up in the cave, like a trench.

"It's in there now."

This is

Zhou Weisheng straightened his waist and looked at this scene with some surprise.

Due to the appearance of the water monitor lizard, Zhou Weisheng got up early in the morning to watch the live broadcast, just wanting to know more about the state of the water monitor lizard in his reserve.

Usually, the research and tracking of the team are all big and small. At least seven or eight big teams set up camps, all kinds of equipment, and animals are scared away when they see it. It is rare to sneak in like this secretly, and the opportunity is rare.

Now it seems that they are nesting here?

Monitor lizards like to lay their eggs in tree holes and caves, which is indeed a familiar style.

Bi Fang said speechlessly: "I was woken up once last night. I held up a torch and went out to look, only to see that it had dug a hole here. When I looked again this morning, the hole had already been dug, and the whole family was here. Inside, I don’t know when the fish in my fish pond were eaten.”

Bi Fang took a few steps around and came to the wall.

He had cleared the bushes in front of the shelter a long time ago, leaving an open space. There were three large pits on the ground, all of which were half a person deep, and each had a different function.

One water pit for fish, one for iron bacteria, and the last for clay.

If there is a harvest in the fishing ground, it must be taken away in time, otherwise a large number of fish will be crowded together, which will affect the subsequent harvest.

There were originally six fish in the pond, but Bi Fang ate two yesterday, so there should be four left.

As a result, when I looked at it this morning, there were only two left, and the remaining two entered someone's stomach. Bi Fang had no doubt that the culprit was the water monitor lizard not far away.

It seems to have sensed some kind of resentment.

The water monitor lizard came out of the hole, stared at Bi Fang motionlessly, and spat out a long message.

"Your sister."

Bi Fang uttered a rare swear word, and kicked a small clod of dirt away, hitting the slope, splashing out a small piece of dust.

【A deep resentment】

[Wori, our hero and heroine are living together now? 】

[Water monitor lizard: Good job, the cafeteria is closer to the door of the house, and fresh fish can be produced every day! 】

[Yes, I did it, what can you do? Come hit me (paw vigorously slapping the national first-class animal protection certificate)]

【Live in Bengbu】

[Is Guoyi really that arrogant? Give me one sometime, I’m also a first-class trash who’ll eat and wait to die, woo woo woo]

Bi Fang shook his head, forget it, let it go, there is a big project waiting for him to do today.

Perhaps the sun is so good today, there is even fog in the Banna rainforest in the early morning.

Looking at the mist in the forest, Bi Fang suddenly remembered the miasma he mentioned before, and a flash of lightning flashed through his mind.

"I finally understand why many people think that miasma is a kind of poisonous mist, and the ancients attributed the cause of illness to words like 'miasma', which obviously have the meaning of gas!"

【Why? 】

Many people scratched their heads and asked questions in cooperation.

"The so-called running water does not rot. On the one hand, the flowing water draws oxygen into the water, and on the other hand, it turns the water with low oxygen content upside down to absorb oxygen, so the organic matter decomposes quickly, and it is not easy for microorganisms to gather."

"Furthermore, the flowing water will wash away the insect eggs, making it difficult for mosquitoes to breed. Therefore, although large rivers have a lot of water and bring humid air, they may not directly cause diseases."

"When the ancients said miasma, they generally did not mean the agricultural areas in the open valleys, but the miasma in the surrounding mountainous areas. It can be seen that miasma cannot simply be described as hot and humid air."

Bi Fang added some water to the clay pit and continued stirring.

The overnight evaporation made the clay pit a little stagnant.

"Stationary standing water is the easiest place to breed germs, which requires the existence of many depressions that are lower than the surrounding area to hold rainwater, and such depressions are common in most places."

"Even if the surface is sloped, fallen trees and rocks often create small depressions. I went to Daxing'an Mountains last year and saw many similar depressions, puddles, or small swamps in the forest. Of course, they are all Frozen."

What Bi Fang said was that when he went to Mohe, it was freezing cold, and the ground was covered with frozen "ice puddles". Combining what he saw and heard this time, he fully understood why "miasma" is "miasma". ", rather than "miasma water", "miasma soil".

"It's just that there is less rainfall in the north, and the depressions will dry up on sunny days and freeze in winter, while the south often has more rainfall and high temperatures, so the depressions have become a 'bacterial soup' rich in organic matter and a 'nursery' for mosquitoes."

"These have become a serious threat to humans, a mammal that has no body surface hair. It is especially terrible for northerners who do not adapt to the southern flora, and it will cause harm far beyond 'acclimatization'."

"Usually these depressions evaporate water vapor, which recondenses into fine water droplets on the top of the forest, forming fog clusters. These fog clusters are therefore a sign of mosquito breeding and are considered to be 'miasmas'. In addition, many large groups of mosquitoes can be seen from a distance. Like clouds and fog, the ancients thought there was something wrong with the air in the south."

In the old days, it was quite smoky and rainy, and it was miasma that turned pale when talking about tigers.

From the perspective of geographical factors, Bi Fang understood for the first time what the so-called "miasma" was.

Fog often appears between the mountains and forests,

Before, he only knew that it was a misnomer for bacteria and parasitic diseases by the ancients, but he didn't know why such a misunderstanding occurred.

Seeing the fog in the forest at this moment, and remembering what I saw and heard in Mohe, I suddenly realized.

"I still have to read thousands of books and travel thousands of miles."

Bi Fang wiped the mixture of condensed mist and sweat on his head, dug out the mixed clay, and shoveled it into the rattan-woven dustpan frame.

"Three pits are not enough, we have to dig another one to build the furnace."

"Temperature is the key to ironmaking. The underground furnace can accumulate heat more effectively, and the deeper we dig, the higher the furnace will be."

The length is one, and the deeper the underground, the overall length of the furnace will be increased in disguise.

The fire will be more vigorous.

"Using the chimney effect, the higher the furnace, the faster the air flow, and the faster the flow rate, the lower the pressure, forming a pressure difference with the bottom, and the fire will flourish, and our combustion rate will also increase."

[666, it's been ten days, and finally some dry goods are coming! 】

[Eleven days left, will Lao Fang have time? 】

【Brother, go back and apologize to sister-in-law】

[Wait for the reactor, when will you build a nuclear furnace? 】

【nuclear reactor? Hurry up, don't rush]

[Such a long passage, I didn't understand a single word, the storm is crying. 】

"Ha, don't you understand?" Bi Fang scratched his eyebrows, the black mud on his hands made his face disfigured, but he didn't care at all.

"To put it simply, everyone knows the flow of hot and cold air. This is also junior high school knowledge. It expands with heat and contracts with cold. Therefore, under normal conditions, cold air of the same volume will be heavier, it will fall, and hot air will be heavier. Light, so it will rise and form air convection."

The audience nodded, which is easy to understand.

"Our furnace is burning under the stove, the air will heat up and expand, and then rise, and the cold air above will sink, and the relative flow speed depends on the temperature difference. As long as the chimney is high enough, the air above us will be closer to the natural temperature. It is colder, the temperature difference is greater, and the flow speed is faster, can this be understood?"

The audience continued to nod.

"Once the air flows and the speed is fast enough, we have enough oxygen to support combustion, improve combustion efficiency and temperature, and act as a natural blower."

Using the principle of hot air rising, the hot smoke is discharged from the upper air outlet, and the fresh cold air from the outside is drawn in from the inlet, which increases the oxygen required for fuel combustion, makes the fuel burn more fully, and strengthens the fire.

This is the principle of the blast furnace.

Iron smelting in a blast furnace sounds powerful, but in fact it literally means iron produced in a blast furnace.

One of the main reasons for limiting materials throughout the ages has been the combustion temperature and furnaces that can withstand high temperatures.

The audience suddenly realized.

[Fuck, I got it! 】

[Damn, is it so scientific? I always thought that Boss Fang came from the world of metaphysics, dog head]

【You think I'm science, but I'm actually metaphysics! 】

[There are always people who wear the skin of science and show us magic. 】

"The same is true for high-rise buildings. The hot air caused by the low-level fire will flow upward through the passage, so that the high-heat gas will continue to accumulate at the top. As a result, the fire will convect through the air and create another fire field on the top floor of the building."

"So when escaping from a fire, don't run up, but go down."

Bi Fang dug a hole big enough to accommodate half his body, and began to build a stove out of clay.

【Is Iron Bacteria Ironmaking Really Reliable? It feels like Magneto sucking out iron from the human body]

[I also think it's a bit mysterious, but if I say no, I bet fifty cents that Boss Fang will slap me in the face. funny】

"There is no problem, whether it is theoretical or practical, it can be successful."

Bi Fang piled a large piece of clay on the ground, spread it in the pit, and glued a layer around it.

"Iron bacteria can oxidize ferrous iron to ferric iron and get energy from it. In water, it can oxidize ferrous compounds and make them precipitate trivalent iron hydroxide."

"The sediment collects around the bacteria, producing a lot of brown slime, causing pitting and rust formation on equipment and pipes, and a lot of times, that's what we see in the pipes."

"Because of this, it can oxidize and dissolve ferrous hydroxide and ferrous carbonate in water to deposit iron hydroxide, which can concentrate and accumulate iron in the environment. Many scientists also believe that it may be natural limonite. participants in the formation of mines."

"The final iron hydroxide can be used to make iron!"

It's time to double the time soon, let me get some monthly tickets, woo woo woo, can I get 1,000 tickets this month?