Wilderness: After the college entrance examination, I got the strongest survival system

If the sea salt is not filtered, it will have a bitter taste, bitter and astringent.

For the past two days, Li Yingjie had been thinking about the murder, so he didn't pay attention to it. He didn't realize it until now.

He needed a container to make a simple purification device. It would be very convenient to use bamboo or mineral water bottles, but obviously, they couldn't find these things for the time being.

There may be bamboo on this island, but at least there is no place within a few kilometers around Li Yingjie's shelter. There are all poplar trees here.

After thinking about it, Li Yingjie cut a piece of wood that was as thick as a bowl and as long as half an arm, and burned the middle with charcoal to make it hollow, making a wooden pipe.

Lin Xiaoying watched his actions and asked curiously, "Has the sea salt we ate last time been filtered?"

While carefully burning the wood, Li Yingjie said, "Did you forget? Last time we used bamboo to make a purification device."

Lin Xiaoying thought about it, the purification device did have an impression, but it was used to purify water, did you use it to purify sea salt later?
Can not remember.

But seeing Li Yingjie's skillful appearance, Lin Xiaoying felt that he should have done this job before.

Li Yingjie first burned a hole in the middle of the wood. The wood was as thick as the mouth of a bowl, but the diameter of the hole was not very large, only six or seven centimeters.

The hole was not burned through, leaving three or four centimeters thick at the bottom of the wood.

He then used his knife to scrape away the charred inner layer, exposing the surrounding wood.

"Look, this can be used as a drinking glass now!" Li Yingjie handed it to Lin Xiaoying and said with a smile.

Lin Xiaoying took it over and looked at it, then nodded and shook her head: "It can indeed be used as a drinking glass, but it's too ugly."

"Judging people by their appearance is wrong, and judging things by their appearance is the same. Just like some people, they don't even know that she is a school bully just by looking at her appearance!"

Li Yingjie shook his head regretfully, with a look on his face that made Lin Xiaoying want to slap him in the face.

He took the wood, drilled a few holes under it with a knife, and then cut a piece of cloth from the inner lining of his jacket with some distress, and used it as gauze.

"It's a pity that I didn't take away the belongings of those two devils last time!" Li Yingjie sighed.

In the end, all the belongings of the two devils were taken away by the second batch of island country rescue teams. He was going to rob them, but he didn't plan to leave them with jackets or anything.

But in the end, nothing was snatched, and everything was taken away!
With a sigh, Li Yingjie placed gauze at the bottom of the wooden barrel, and then filled the bottom layer with some coarse sand.

This kind of purification device can only be regarded as a simple purification device. It uses sand and charcoal to filter and absorb dirty things, so the filter should be placed layer by layer.

The first layer is coarse sand, the second layer is fine sand, the third layer is charcoal particles, the fourth layer is still fine sand, and the fifth layer is another layer of coarse sand, and the whole purification device is ready.

Clean the whole device with clean water first, and then start to purify the sea salt when the filtered water is no longer black.

Li Yingjie dissolved the sea salt with clean water, poured it in from the top, and then the purified salt water flowed out from the bottom.

Put the salt water into an iron pot and boil it again while purifying.

Li Yingjie filtered, and Lin Xiaoying heated the fire and stirred. It took about two hours, and they finally filtered all the salt, and it was noon.

System time 11:56.

Li Yingjie waved his hand, "Go, masturbate... Bah, go and masquerade!"

Lin Xiaoying couldn't help but glanced at him, held back for a long time and said:

"People all over the country are watching, you can be more careful!"

The two picked up some small stones on the ground and came to the woods.

Ever since Li Yingjie discovered that it was not so difficult for him to hunt birds, every time the two of them wanted to eat, they would come to the woods to get two birds.

Most of the poultry tasted good, but some were sour.

After a few days of tasting, the two of them can be regarded as having an impression of most of the meat.

Ten minutes later they came to the fire with two birds.

"Let's stew this, bake this, let's take a look around after eating!" Li Yingjie said.

I originally planned to start exploring in the morning, but it took a lot of time to make the purification device and purify the sea salt.

The two ate, packed their things and set off.

During the last exploration, they looked at the area with a radius of three to four kilometers, and this time they planned to cover a larger area.

It was cold on the island, so they did not expect to find anything when they explored.

But while walking, Li Yingjie suddenly found a row of relatively obvious footprints on the ground, which looked like bison.

"Don't worry!"

He raised his hand to stop Lin Xiaoying, pointed to the footprints on the ground and said, "Look at these footprints, do you recognize them?"

Lin Xiaoying took a look and guessed, "Is this from an elephant?"

Li Yingjie: "..."

"How do you think this is the footprint of an elephant, what is the analytical thinking?"

Lin Xiaoying thought for a while, walked past the footprints in front, then turned her head and pointed to the ground and said:

"First of all, this should be a footprint made by a hoof. Then, you see, the footprint is not clear after I walked over it. The ground here is still relatively hard, so the person passing by must be a big guy, so it may be an elephant. !"

Li Yingjie looked at Lin Xiaoying, thought about the size of the elephant, and sighed.

"Your analysis is very correct. First look at the type of footprints, and then look at the depth of the footprints to determine what type of animal it is!" Li Yingjie first praised it.

Lin Xiaoying couldn't help smiling.

"But—" Li Yingjie changed the subject and asked, "How big do you think the elephant is?"

Lin Xiaoying said tentatively, "Two or three tons?"

She is in biology, not zoology, so I really don't know very well, but the common sense from elementary school feels that elephants should be so heavy.

Li Yingjie nodded, without worrying about the specific weight of the elephant, but asked again: "Do you remember the big crocodile we met last time we were trying to survive? That crocodile weighed about one ton. Calculate the weight of two or three tons. How heavy, how big should the footprints be?"

Li Yingjie couldn't help laughing as he said that.

Elephant footprints... I have to say, this brain hole is really big!
Lin Xiaoying thought about that five- to six-meter-long crocodile, that big guy only weighed one ton, that elephant...

She stuck out her tongue embarrassingly, "What kind of animal is that?"

Li Yingjie squatted next to these footprints, pointed to the shape of the footprints and said: "Looking at the depth, it should be stepped on by an animal of the size of a cow or a deer. According to the comparison of your footprints, this animal's weight is at least ten times yours. "

"But it is obvious from the shape of the footprints. This is the footprint of a bison, and this footprint is relatively new. It should have been stepped on in the past few days."

Lin Xiaoying showed joy: "It means that a bison has passed by here in the past few days, is it still nearby?"

Li Yingjie analyzed: "Maybe it is active in this area. Let's look further and see if there are any cow dung or other footprints nearby."

Both of them were a little excited, as if the beef had been boiled in the pot.