This nitrogen cylinder is used to automatically inflate the life raft, and it is useless after flushing, and at first I was hungry and ready to use it to boil water, but there is a pressure reducing valve on the mouth of the gas cylinder that is difficult to unscrew it down, and if you use the wrench again, it can be done in minutes.

But now let me go there to find a wrench, but I have to get the pressure reducing valve off to fill the water, and I have tried a lot of hard work to unscrew the pressure reducing valve.

I'm really out of shape now, looking at the cylinder, I'm angry, I want to use a wrench again, I think of this, I have an idea, why don't I make a wrench.

Although the island's resources are limited, I have an idea to try, I took a few broken cans, and then used scissors to cut off the cans, and then used a hand knife to cut holes in the bottom of the cans that were the same size and shape as the pressure reducing valves, and I chiseled four cans in a row to put them together, so that a simple wrench was made.

The next step was to verify that my simple wrench was working, and I used the wrench one by one clockwise on the pressure reducing valve.

creak

I managed to unscrew the pressure reducing valve so that I had a kettle that I didn't have to worry about leaking.

The gas cylinder is filled with compressed air, so its manufacturing standard is very high, and the gas cylinder is made of thick pure aluminum, and I am afraid that it will not be burned out for a lifetime with boiling water.

I have to drink at least 1,000 ml to 2,000 ml of water every day, and the volume of the gas cylinder is 800ml, and the water I boil twice a day is basically enough, plus I need a lot of firewood for grilling, so I often chop wood to dry firewood, and I have to fish and catch seafood at the end of the day, and there is not much leisure time at the end of the day.

As for chopping wood, it is a difficult job, because I only have a stone axe, which is very difficult to use, and if I have a wood knife, it is easy and efficient to chop wood, but I only have the most primitive stone axe.

There was also a situation where sometimes the chopped firewood was not dried, and when it burned, it would emit a lot of smoke, and every time I choked on tears.

But in order to survive, there is no other choice.

One day I was busy with all my work and sat in the hut resting, I lay on the bed and looked at the sea in the distance, I had an inexplicable empty feeling in my heart, my mind seemed to be blank, and I forgot everything.

I should miss my family very much, but I don't want to think about them or even remember what they look like, and I don't know why I'm like this, my heart is as calm as a pool of stagnant water.

(Note: From a psychological point of view, this kind of mind is called the self-defense mechanism, and the self-rejection of all negative factors.)

Self-defense is a mental operation that removes one or more components of an unpleasant emotion, such as thoughts, feelings, or both, from consciousness. ”

To put it simply, the self-defense mechanism is a kind of protection for the self, which allows our self-function to be preserved for a certain period of time, and will not be destroyed by too strong feelings.

Of course, this is self-deception from another point of view, but it is not a good way for some people. ）

My eyes unconsciously shifted to the can in the corner of the hut, and I suddenly had a flash of inspiration when I looked at the aluminum can in front of me.

Solar cooker ,,, sun cooker,,,,

I keep repeating these three words in my head, knowing that a solar cooker is a device that uses a concave mirror to reflect sunlight and gather energy, and people use it to boil water for cooking and even welding metal.

The principle of the solar cooker is very simple, that is, the reflection of sunlight is focused at one point to achieve the effect of high temperature and high heat, and the best material for reflecting sunlight is silver mirror, although I do not have a silver mirror but I have a lot of Lu cans, although aluminum is not as reflective as silver mirror, but after polishing can still reflect most of the sunlight.

First of all, I counted my existing cans, a total of more than 60, but half of the cans are deflated, a little troublesome to deal with, but it doesn't hurt, but I secretly scolded in my heart, I don't know who finished drinking the drink, why did the cans flatten, really,,,,

Fortunately, I have a pair of scissors, and it is still very easy to cut cans with scissors, I cut the cans one by one along the mouth of the can, and then flatten the aluminum skins and calculated the area of these aluminum skins to see if they can be used as a solar cooker.

After calculation, the area of the aluminum skin is about 1.5 square meters, which seems to be a bit small, but I have to give it a try anyway, and if it succeeds, it will solve one of my big problems.

I looked at the surface of the aluminum skin, which was gray and not very smooth, and the reflectivity was not strong, and there seemed to be a coating film on the surface of the aluminum skin, which I had to deal with, that is, polishing.

I first fixed the aluminium skin, sanded it off with fine sand, and then sanded the aluminium skin with the fibers of the coconut shell.

I turned my only pair of jeans into shorts to give the aluminum leather a good reflective effect, and the cut trouser legs were used for the final polishing of the aluminum skin.

Polishing the aluminum skin is a laborious and time-consuming task, and there is no one to supervise the work anyway, so it took me 20 days to polish all the aluminum skin like a mirror.

The next step is how to make a solar cooker from these aluminum skins, in fact, I have already thought about the next step, which is to use my bamboo weaving skills.

In fact, this process is much simpler and easier, I only need to weave a suitable size of the bamboo embryo base with fine bamboo wire at a certain angle, and then fix the polished aluminum skin on the bamboo embryo of the solar cooker.

I first made a small hole in the four corners of each piece of aluminum skin, then used scissors to cut the two aluminum sheets into thin strips, then bent the aluminum strips into a "U" shape, and finally used the U-shaped aluminum strips to pass through the small holes to fix the aluminum skin on the base of the solar cooker, and it was done.

The next step is to test the efficiency of this solar cooker, and I don't know if it will be successful.

I painted the cylinder with charcoal all over the bottle because the black absorbance is good for heating.

I filled the cylinder with water, hung it up and placed it on the spotlight of the sun cooker, and all that was left was to wait.

I was a little unsure that such a small simple solar cooker could really boil water.

I looked at the cylinder from time to time, I was very anxious, and finally the mouth of the cylinder began to bubble, I walked in and saw that the water was very hot, although it was not boiling, but the temperature of the water was at least 90 degrees or more, and the bacteria should be killed if they burned for a while.

My solar cooker is a success,,,。

There is no problem with boiling water in a gas cylinder, but you can't use it to cook anything, and I have been cooking food since I came to this small island, and I have been like this for more than half a year, and I have never cooked anything to eat.

It is often said in the news that people who eat barbecue regularly have an increased chance of cancer, but now I don't eat barbecue often but eat barbecue every meal, and the chance of cancer is not higher.

Although I don't really believe in the theory that I get cancer from eating barbecue, I don't want to get cancer on this desert island, even if I am rescued and return to civilized society and get cancer, I am afraid that it will not be saved.

I couldn't eat the baked food anymore, I had to cook the food before I ate it, and I secretly made up my mind.

But for the next few days I still roasted the food, for the simple reason that I didn't have a pot.