.. , the rules of survival on a desert island

The process seemed to be very painful, and the dolphin trembled a little, but it did not close its mouth to bite Wu Yicai's arm because of the pain.

Finally, a large lump of stuff was pulled out, a large plastic bag with a little filth stuck to it, like fish remains.

Come to think of it, this plastic bag should have been eaten by dolphins into their stomachs, and the plastic bags that entered the stomach could not be digested at all, and even half of the food digested in the stomach itself was pulled out.

The dolphin seemed to be a lot more relaxed, jumping up and down in the sea happily, stirring up waves, and successfully gradually entered the boat, Wu Yicai and Han Lingshuang's clothes were soaked.

It didn't matter, the important thing was that the waves splashed into the hull of the ship, and the fire that was burning was making a "sizzling" sound, almost extinguishing the fire.

"!" Wu Yicai shouted at the dolphins in the sea, "If you don't have anything to do, hurry up and leave, don't come to harm us again!"

The dolphin eventually left, and after disposing of the foreign object left in his stomach, he ran away, and it could be seen that he was swimming happily in the sea.

Wu Yicai is still holding that mess......

This filthy thing was full of peculiar smells, and there was a strong sour smell, which was very pungent.

"Hmm~!" Han Lingshuang covered her nose and frowned slightly, "Hurry up and throw that away, it's too stinky!"

She really couldn't understand why this thing was still holding that filthy plastic bag, could it be because she was attached to the food on it and wanted to eat it?

"Why do you want to throw it away?" Wu Yicai raised his eyebrows, "This is a good baby, it is very useful!"

"I'll go, big brother, do you really want to eat it?" Han Lingshuang looked disgusted, is this product going to give up the last trace of dignity, "If you want to eat it yourself, I won't eat it!"

Eat?

The clumps of marine fish on the plastic bag were disgusting, and the smell was less sour.

"Eat your sister!" Wu Yicai looked helpless, sighed and shook his head, "This plastic bag has a big use, although it is a little dirty, just wash it!"

Seawater contains a high salinity, which is very useful for cleaning dirt and grease, and it didn't take long for the nearly transparent plastic bag to be washed clean.

This plastic bag should belong to that kind of high-temperature bag, although there is some damage, but it does not affect the use.

"It turns out that you didn't plan to eat it, I thought you were going to eat those ......" Han Lingshuang spit out her clove tongue a little embarrassedly, and a wicked smile bloomed on her little face.

"This plastic bag is also used to get water, and now we are most in need of fresh water, so we have to do everything we can to get fresh water. Wu Yicai stretched out a finger and pointed to the few tools in the cabin, "As long as it is used reasonably, you can use the energy given by nature to convert seawater into fresh water!"

The fresh water being made now is a charcoal still, which is like a water dispensing device that consumes materials very quickly, and when the charcoal is burned out, the fresh water cannot be obtained.

This method of consuming existing energy is like the coal in our world, coal mines are found almost everywhere, but the storage capacity of these coal is limited, and sooner or later it will run out.

There may be coal for hundreds or even thousands of years, but one day, coal may become a precious object, and perhaps there will be coal specimens in museums, and our descendants will learn about the natural resources that were wantonly excavated and mined by our ancestors through specimens.

Of course, the future is unpredictable!

Perhaps in the near future, mankind will be able to invent an energy source that completely outlaws coal, and without destroying the ecology!

……

Wu Yicai is facing an extremely serious problem, sooner or later the charcoal will run out, and the ship can be burned at that time, this ship is very large, you can try to dismantle part of it and use it to get water.

But making a fire to get water is not a long-term solution, you have to find another way!

Now Wu Yicai is ready to use the new energy that human beings can grasp at present to collect fresh water and solar energy!

"You plan to use sunlight to distill fresh water?" Han Lingshuang was a little puzzled.

"The temperature of the sun is very high, reaching tens of thousands of degrees, and now we are far from it, and the temperature of the sun is around 38 degrees. Wu Yicai explained.

The water can evaporate when it reaches 38 degrees, and the transparent plastic bag that Wu Yicai obtained can just be used to make a sealing device for a solar distiller!

"Oh...... How do you need to make it?" Han Lingshuang really didn't understand, what should this solar distiller do.

"The specific method is basically the same as that of a charcoal still, filling a previously fired pottery bowl with water, placing a tool to catch the water in the center of the bowl, and finally sealing it with a transparent plastic bag. Wu Yicai nodded, continuing the theory he had conceived in his mind.

"This way you can use the sun's rays to get fresh water, which should be slow, but adding something to the bowl can increase the temperature in the bowl!"

A piece of plastic tin foil collected a while ago can be used......

The bowl made by Wu Yicai is made according to a taper of 45 degrees, with a large mouth and a small bottom, and if the tin foil plastic is stuck to the inner edge of the bowl, the temperature can be increased exponentially.

It's like a condenser in an old-fashioned flashlight, where the bulb drills out of a small hole, like a megaphone, using reflective materials to absorb the light and then amplify it.

On the other hand, if light rays come in through the large hole, then these rays will be refracted, and finally concentrated into the small hole, which will increase the brightness of the light.

And the sun is a magical object, it not only emits bright light, but also heat, and it is not only brightness that condenses, but also heat.

And on some survival programs, Wu Yicai has also seen others use the spotlight of a flashlight to make fire, and successfully get the fire.

This proves that the condenser can gather heat energy through the refraction of the sun, and adding a circle of plastic tin foil to the rim of the bowl will definitely warm the water in the bowl.

After the overall production was conceived in my mind, I started to act, and a while ago I picked up a piece of tin foil plastic in the sea, which was just right in handy.

If you put a container with water directly inside the bowl, it will float due to the buoyancy of the seawater, and it will not be able to receive the distilled water vapor.

Spread a thick layer on the bottom of the bowl and send it away, and then fix the bamboo tube in the center of the bowl, and the pine resin can be fixed after cooling.

Then add water to the bowl, the bamboo tube does not float, cover the top of the bowl with a plastic bag, and tie the outer ring of the bowl with a rope to seal it.

"Okay, the solar still is ready!" Wu Yicai finally put a piece of wooden stubble on the plastic sheet, so that the plastic sheet above the bamboo tube was dented.

Because the water flows downward, the evaporated water vapor will flow down the low-lying areas into the bamboo tube.

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