Chapter 21 regain confidence
Ma Yongqiang looked at Yu Tina, who curled up and wept softly.

Sighing deeply, he stood up slowly, looking at the vast sea with no one around, feeling inexplicably irritated in his heart.

Rubbing his hands together, he secretly persuaded himself not to just give up like this.

Picking up the finished tin can from the ground, walked to Yu Tina's side, patted the tin can lightly, and said firmly to Yu Tina:
"It's okay, Mr. Yu, don't we have another plan, we can't give up now, we will be able to return to our city safely and smoothly."

Yu Tina stopped crying, rubbed her red eyes, and spoke intermittently.

"I... think, but... on this isolated island, how should we go back? I think... I miss my parents!..."

As she spoke, Yu Tina began to cry again.

Ma Yongqiang understands, but what can he do?Who doesn't want their own family?Who doesn't want to go back?
But this vast sea, like a moat, straddled the two on their way home, how could it be possible to cross it.

cry!If crying was useful, Ma Yongqiang wished he could shed all his tears now, but it didn't work.

The most important thing right now is to be alive, to be alive...ah!

What a small word, what a simple thing, but in this vast sea, it is so difficult!too difficult!
Hearing Yu Tina's sobbing, Ma Yongqiang felt more and more restless, and decided to implement another plan by himself to obtain fresh water.

Ma Yongqiang clenched his fists hard, cheering himself up over and over again, he is a big man, he must never give up, there must be a way, definitely will!
Ma Yongqiang tried his best to recall in his mind all the knowledge he had learned about collecting fresh water.

I hope to find one or two useful ones, which can solve the urgent need. After careful consideration, Ma Yongqiang finally decided to use the simplest and most effective seawater distillation method.

Heating and boiling seawater distillation is a simple and convenient method for obtaining fresh water that is most commonly used on board ships in the ancient nautical period.

Although distillation is an ancient method, due to continuous improvement and development of technology, this method still dominates today.The essence of the distillation and desalination process is the formation of water vapor, which is like sea water being heated and evaporating to form clouds. Clouds form rain when they are cooled under certain conditions, and rain does not have a salty taste.According to equipment distillation, vapor compression distillation, multi-stage flash distillation, etc.

The specific operation method is to boil the seawater until it boils, the fresh water evaporates into steam, the salt stays at the bottom of the pot, and the steam condenses into distilled water, which is fresh water.

Ma Yongqiang looked at the not-so-big iron box in his hand, and tried hard to think about how to build this seawater distillation device.

Now there is an iron container that can boil water, but what should I use for the condensation water?

I had to think carefully, because Ma Yongqiang knew that if he didn't succeed, he would really collapse.

At this time, Yu Tina's mood has basically calmed down. Seeing Ma Yongqiang clutching the iron box tightly, scratching her ears and cheeks anxiously, she roughly understood what unsolvable problem Ma Yongqiang encountered.

Yu Tina looked at Ma Yongqiang's frowning, and asked tentatively:

"What happened to you? Tell me if you have any questions, and I can refer to them for you. After all, I have studied abroad and have comprehensive knowledge."

Although he said these words with good intentions, there was still some element of arrogance in his tone.

Ma Yongqiang was feeling bored right now, and he didn't hear the arrogance in Yu Tina's words at all, so he explained his doubts to Yu Tina.

Yu Tina lowered her head and thought for a while, then an idea came to her mind.

"That Ma Yongqiang, why do you have to use an iron box to boil water? We directly heat the stones, dig a pit on the beach, fill the pit with seawater, then heat the stones, throw them into the pit filled with seawater, and use Large leaves of broad-leaved shrubs are placed on top of the sand pit, with a small bevel at the end of the leaves, and an iron box is placed at the lowest bevel, this method will not work!"

Before Ma Yongqiang could finish talking to Tina, he slapped his thigh and applauded loudly.

"This is really good! It's great, Mr. Yu, thank you, we're saved now. Just wait, I'll do it right away."

The excited Ma Yongqiang does not mean that Lina said that she ran quickly to find various materials to build a simple seawater distillation device.

 We have entered the signing process, welcome everyone to taste slowly
  
 
(End of this chapter)

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