Su Qietian, the heroine of fast wear

Chapter 914 The King of Black Material 15.18
When the barrage discussion was having a good time, Luo Yan asked Lu Ran: "What are you going to do?" The voice was full of curiosity, she really didn't know what he was going to do.

When Lu Ran turned his head, he saw her staring intently at him, as if an ant had crawled into her heart, itching and crisping.

I wish she had been looking at him like that all the time.

He was the only one in his eyes.

But he still knows how to measure, knowing that now is not the time to be distracted, so he explained to her very seriously: "I checked the information before I came here, and I know the knowledge of wild survival. If you don't have a lighter to get a fire source in the wild In addition to the primitive method of making fire by drilling wood, the physical method of concave-convex lens principle can be used to start a fire. When the sunlight passes through the convex lens formed by water, it will be refracted, so that the heat will be concentrated at one point, and when it reaches the ignition point, there will be a fire..."

When he spoke, the movement of his hands didn't stop.

Fold the paper, lay the mineral water bottle horizontally, form an angle, and align the curved surface with the folded paper, looking for a focal point, and then wait for the paper to dry up and ignite.

It was afternoon, but because of the location of the island, the sun was still very strong. Soon, the center of the folded paper turned black, and slowly, smoke began to rise.

Lu Ran unhurriedly folded the other sheets of paper that he had prepared before into two layers, wrapping the smoking paper, and soon, the paper ignited and the fire started.

Seeing the fire rising, An Yuchen, who ran to see how they started the fire after setting up the tent, couldn't help but clapped his hands excitedly: "Great! With the fire source, we can have cooked food!"

When the fire started, the audience in the live broadcast room were brushing "666" for Lu Ran, and the barrage was filled with jubilation, and Lu Ran's popularity, which had fallen because of Lu Xiaocheng, also rose a lot.

【666】

【Lu Ran is amazing】

【If it were me, I would definitely not be able to give birth】

[Although I know that the fire is generated using the principle of a convex lens, but I can't do it if I change it. I went out for a picnic last time and wanted to try what I learned when I have nothing to do. However, after working for a long time, the fire still Can't give birth! 】

Then someone came out to popularize science.

[Actually, it depends on the right time, place and people. First of all, you need to have all the tools, the sun is big enough, and the angle of mineral water, paper folding, etc. The most important thing is the angle of sunlight and mineral water...]

[So how does Lu Ran judge which placement is the best angle? ? ? 】

[Is this the difference between a top student and a scumbag? [Cover face][Cover face][Cover face]]

[Erchen is so funny, Huo always thinks of eating [cover face]]

【Food is paramount to the people [doge]】

[Why is everyone called An Yuchen Erchen 233333]

[I think what my younger sister said is quite right. There are two Chen bands, Tang Yichen is the first, and An Yuchen is naturally the second. 】

【Erchen sounds very nice】

[After the upstairs said it sounds nice, I will name your baby Er Gouzi, how nice it sounds! 】

【Zou Kai, you are only a second dog】

【Prosperous and fiery in a trance】

[Actually, I want to say, who said that Lu Ran is cold, seeing how serious and talkative he is when explaining to his junior sister, is this cold? 】

[Two people are responsible for lighting the fire, but Lu Ran does everything by himself. In this chapter, the job of the little junior sister is the mascot [cover face]]

[Mascot, there is nothing wrong with being prosperous and in a trance. 】

(End of this chapter)