Semi-wet soil has better adhesion and is easier to handle!

Hu Xiaodao picked up a straw, passed it through the lid of the large plastic bucket, and erected it in the middle of the funnel-shaped, leaving about half a centimeter outside. Pen, fun, pavilion www. biquge。 info

While filling the upper half of the plastic bucket with soil, he explained: "The water vapor evaporated at high temperature is much denser than liquid water, and everyone should know this common sense. ”

"In order to prevent the water intake device from bursting, I need to keep an air hole, as for where to leave the air hole, this is more particular, the ideal is the way I place it now."

Let's start A: "As long as it doesn't explode, why do you have to put it there?" ”

Cow herder: "A confused face, indicating that I don't understand!" (depressed)"

"Personally, as long as it doesn't leak, it's the same everywhere!"

Regarding the audience's questioning, Hu Xiaodao was very calm and explained: "The main reason why the pores are left in the middle, and it is in the middle of the funnel type, is the cooling and condensation of water vapor. ”

Holding up the soil in his hand, he continued: "This kind of soil with a relatively delicate texture has good viscosity, and under the exposure of sunlight, it will keep the low temperature for a longer time, which is very suitable for use as a carrier for cooling." ”

"Since the molecular weight of the evaporated water vapor is 18, which is much lower than the air with a molecular weight of 29, the water vapor will definitely float upward, if the pores are opened at the current position, the water vapor can be absorbed by the low-temperature soil, re-condensed into water droplets, converge along the middle funnel, and finally drip into the middle beverage bottle."

"But if you leave the stomata in another location, most of the water vapor will be lost because it can't come into contact with the low-temperature soil."

"Nima, it's so complicated, I feel that my IQ is a little insufficient."

"Sod's dead, it turned out to be sauce, I don't know how to do it!"

Rice is very thin porridge: "What a complicated water intake device, fortunately, this handsome guy has a good brain, and he has learned a cow X skill, Meizizi!" ”

Hu Xiaodao's explanation is very detailed and vivid, and the audience listens as if they are there, and it is easy to understand the principle.

The upper half of the two plastic buckets were filled with soil, Hu Xiaodao grabbed an extra piece of tape, got up and walked to the beach, "This silt plastic soil is very sticky, it is a perfect sealing material, remember to take a little when you leave." ”

Returning to the position where the plastic bucket was buried, Hu Xiaodao inserted the upper half of the funnel-shaped section into the plastic bucket with the tip pointing downward.

Since the edge of the barrel was indented at the beginning, after the first half of the section was put on, it did not fall directly, but stuck on the barrel appropriately.

"After the first half of the section is put in, be sure to adjust the position of the water to ensure that the straw protrudes and accurately faces the mouth of the beverage bottle inside."

After calibrating the position of the dripping, the soil brought by the handle of the knife is filled around the position of the interface.

"The sealing treatment must be careful, although we do not have a good sealing material, it is impossible to seal absolutely, but it is not a bad thing to be serious, you must know that if you run away a trace of water vapor, we will have an extra drop of precious drinking water."

Seal all the two water intake devices, and finally spread the remaining white cloth on the "low-profile condenser" to reduce the heating rate of the soil as much as possible.

"Alright, the earthen water dispenser is complete."

Hu Xiaodao patted the slag on his hand, and said with a smile: "I explained it intermittently just now, and some of my friends may not fully understand, now I will briefly describe the whole way it works." ”

Pointing to the seawater inside the barrel, "the sunlight shines into the barrel, and after the reflection of the white cloth is enhanced, the seawater begins to evaporate into water vapor when heated, and the pure water vapor is composed of water molecules (H2O), and other substances in the seawater will naturally be trapped in the barrel." ”

"Since the molecular weight of water vapor is lower than that of air, it will float upwards and float, and finally ......" Hu Xiaodao put his hands in a duang posture, "The horn is blocked, the water vapor is hit and dizzy, and there is nowhere to escape!" ”

"The sun continued to bask and dry, and the water vapor from the head was hit more and more, and the pressure in the barrel increased, and the water vapor could only escape to one place under the pressure of the pressure, and that was the drink tube I placed."

Hu Xiaodao's fingers moved along the straw, "Because the temperature of the soil is relatively low, naturally, the temperature of the straw buried in the middle of the soil will also be much lower than the outside. ”

"This is the whole process of turning undrinkable seawater into fresh water."

Speaking of this, Hu Xiaodao said a little helplessly: "Although the material of this device is simple and the effect is not very bad, there is a small flaw. ”

“？？？” A barrage of question marks floated by!

Hu Xiaodao patted the soil and said: "Although the soil that exists as a condenser has been treated, it will definitely not last long under the exposure of the sun, and when its temperature rises, it will lose the cooling effect, and the only solution is to remove the upper half of the section and soak it in seawater to cool down." ”

"However, in order to be able to drink wonderful fresh water, even if you cool it down several times a day, I think it is a good deal, and it is ......."

Hu Xiaodao raised his mouth and smiled, and said mysteriously: "Using the same principle, changing the heating device, you can also get drinkable fresh water, but now you lack some tools." Tomorrow I'll look for it on the beach, and if I can find it, I'll teach you a way to get fresh water. ”

"It's amazing, there is even a backhand."

"Learn every day, sit back and wait for tomorrow's teaching!"

"Ask weakly, what is your brain made of, you can hold so many things, tell me, I'll change it too! (drooling)"

It took almost an hour to make the two water dispensers, by which time the sun was approaching the sea and night was approaching.

"If nothing else, I'll be able to drink it tomorrow, the first sip of water since I went to the island, it's a little exciting to think about, haha." Hu Xiaodao grinned and walked quickly to the shallow reef beach, "It's going to be dark soon, I have to go and prepare dinner." ”

On the first day, I got a place to live, and on the second day, I made the tools of life, and before I knew it, the two days of isolated island life were about to pass.

With the system's rewarded "Guide to Survival on the Island", Hu Xiaodao is steadily moving forward, and the basic element of survival is now only the last item - a stable food source.

Half an hour later, the last rays of light disappeared at sea level!

Hu Xiaodao returned to the reef cave, looked at the small seafood in the shoebox that was less than half of noon, and shook his head secretly.

With the continuous search in the past two days, there is little seafood left on the nearby reef beach, and obtaining a stable source of food has become an increasingly urgent matter.